Great video. Well driven, digestible info, and most importantly a compelling case for the right kind of hydrogen fuel sources and the right kind of applications.

@BillyWu

2 жыл бұрын

Thank you!

@heribertoarguelloloria6841

10 ай бұрын

@@BillyWu do u have other social media ?

thanks for sharing, very nice and high quallity explanation. excellent work you all did

@BillyWu

3 жыл бұрын

Thanks for the comment. Hopefully helpful and also a bit fun too :)

Excellent job. Thank you for sharing your knowledge.

@BillyWu

2 жыл бұрын

Glad it was helpful!

Thanks for informing me of other performances. I can add

Thank for such a good and informative explanation

@BillyWu

3 жыл бұрын

Thanks!

Excellent Video . Perfect explanation for FC BoP

@BillyWu

3 жыл бұрын

Thanks!

Great video thanks for sharing

@BillyWu

2 жыл бұрын

Thanks for watching!

Thank you, awesome idea

@BillyWu

2 жыл бұрын

Glad you liked it!

This video is has a great answers for all my questions,thank you.

@BillyWu

Жыл бұрын

Glad it was helpful!

THIS IS AMAZING!!!!!

@BillyWu

3 жыл бұрын

Thanks!

Best explanation I have ever seen! Well done. Please continue :-)

@BillyWu

3 жыл бұрын

Thanks a lot!

great post thank you

@BillyWu

2 жыл бұрын

Thanks!

THANKS !!!

I am completely with you here especially for generators.

@BillyWu

2 жыл бұрын

Thanks

@onekycarscanners6002

2 жыл бұрын

I don't understand why people only see cars when they see tech. Forgetting that even the elect vehicles still need charging. And you live in a house 10x times longer than in a car. You use outdoor facilities that all require electricity or even busses and HGVs, Boats and Ships. I heard someone asking if it will work on his scooter 🛵 another asked if it will power his fan.😀

Great system, I'd like to build one too.

@BillyWu

Ай бұрын

Thanks. The system is a few years old now so probably better components exist now. Previously it was quite expensive so getting the economics right was challenging for commercial via ability as a generator

Thank you for sharing this Video. It is very informative.

@BillyWu

3 жыл бұрын

Glad it was helpful!

@srinivasj9009

3 жыл бұрын

@@BillyWu Dr. Billy Wu.. I had a query related to Hydrogen purge valve and re-circulation system for the fuel cell. I wanted to know when the purge valve will be operated and how much hydrogen will be re-circulated which is coming from the Fuel Cell.. If you can explain it will be helpful. Thank You..

@BillyWu

3 жыл бұрын

@@srinivasj9009 The aim of the recirculation pump and purge valve is to remove nitrogen which crosses over from the cathode, help with the water management and also maintain a high enough concentration of hydrogen at all cells. Our systems wasn't fully optimised but we ran with a purge timing of 20-30s with a 0.2s purge opening time. When recirculating the hydrogen we were roughly targetting a stoichiometry of ~1.1 but to simplify we fixed the pump rate. Unfortunately, fuel cell balance of plant control does require any moving parts.

@srinivasj9009

3 жыл бұрын

@@BillyWu Thank You for your quick and detailed response

Hi Billy Wu Is it possible to run the fuel cell up to 700Vdc ? How would it behave, life span, efficiency be, if it had only 2 loade kurves, one from 5 - 7 Kw and one at 30 Kw ? What pressure is there in the hydrogen tank ? lastly how many kilo gram of hydrogen would it consume at 6 kWh ? All above just about, nothing to calculate on to be precise to the last digit. Thanks For the video👍

Great presentation Dr WU. How long is the HHO generator able to run under load before needing to stop and preform maintenance?

@BillyWu

3 жыл бұрын

Thanks. This was a prototype unit we built so not reflective of what a commercial unit would be like. In theory if hydrogen was continually supplied it could run uninterrupted however other component might fail over time which is difficult to know when things like blowers, pumps, fans and electronics would fail and need maintenance.

@garethsmith7628

5 ай бұрын

@@BillyWu I could help you estimate this, using fault tree techniques, I do it for functional safety reliability and availability studies. It would also, by examination of the minimal cut sets, identify any weak points in the system or places that could benefit from redundancy.

Great !

@BillyWu

2 жыл бұрын

Thanks

Hi Dr. Wu, Thank you for sharing this presentation. Is a FuelCell system capable of running continuously for a month? Can we consider FC like a base power generation? I would appreciate it if you spare some time and answer my questions. Thank you

@BillyWu

3 жыл бұрын

Hi. Yes, as long as hydrogen is continually supplied in theory the system can continually run, though in practice we also need to ensure that the other balance of plant components run without problems also.

@petercamusojr1545

3 жыл бұрын

Date every drawing, notebook entry and photo of your system. I think you have a patentable concept. Make copies of your ideas documents, and mail them to yourself through registered mail. Don't open the package, this will be your patent protection until you get a patent lawyer. You got a cool idea!

Very interesting, i learned so much❤

@BillyWu

7 ай бұрын

Glad to hear it was useful

@sammy5576

7 ай бұрын

@@BillyWu thanks so much for all the content you make, I love fuel cells

great video thank you. did you also do work on generation of H2 ? im looking for information on both topics to see if it would be possible to creat a small prototyp for my offgrid PV powered house. In order to reduce the battery bank and improve winterperformance.

@BillyWu

Жыл бұрын

Thanks. We haven't made the equivalent water electrolysis unit but there are some commercially available systems. The challenge is that these are still a bit expensive and also need suitable hydrogen storage/compression and as such haven't really taken off yet, though in principle this is of course technically possible.

@OleJacobs

Жыл бұрын

@@BillyWu thanks for the quick reply, it is a realy nice design did you also publish the full paper for the cell? If so would there be a charge to get more in depth information about the system and its specs?

Can you run a setup with hydrogen-based energy storage via electrolysis during peak solar? The scalability for power storage is considerably more feasible than lithium storage; the cost is all on ampacity rather than on amp-hours, since you can just add in extra fuel tanks at a low cost. The benefit is you would be using a closed loop and recycling the O2 output back into the fuel cell, so you wouldn't need a blower (and might not need the humidifier)

@BillyWu

3 жыл бұрын

Sure. It's possible to electrolyse water to make hydrogen and use this in the fuel cell. The challenge is the extra cost of doing so as storage tanks are an appreciable cost as well as the hydrogen compressors needed. Alternatively people are also interest in flow batteries for slightly longer duration storage than lithium-ion batteries

Thanks for Sharing! Do you have a link for downloading your 2014 paper ? thx!

@BillyWu

3 жыл бұрын

Sure. An version without the journal formatting can be found on my researchgate profile www.researchgate.net/publication/261662622_Design_and_testing_of_a_95_kWe_proton_exchange_membrane_fuel_cell-supercapacitor_passive_hybrid_system For the paper with the journal formatting this can be found at www.sciencedirect.com/science/article/abs/pii/S0360319914007393 If you want even more detail you can check out my PhD thesis but its a bit long core.ac.uk/download/pdf/76989968.pdf

@patricksuen4680

3 жыл бұрын

@@BillyWu Thanks a lot !

Have you worked on the electrolyzer end of it? This is the other big challenge but it seems more straightforward from a technical perspective.

@BillyWu

3 жыл бұрын

We haven't done an electrolyser version of this but you're right that there are challenges. Alkaline and PEM electrolysers are reasonably mature but also need to compress the gas to store it in cylinders unless you want to do something more fancy like solid stat hydrogen storage

@Tore_Lund

3 жыл бұрын

@@BillyWu Yes, metal Hydride Storage is the way to go, but unreasonable expensive.

6:08 would be good if the blower could have its exhausts redirected the moment you turn it off.

Billy have you done any research into using graphite in a fuel cell? Love the more balanced approach to handling the energy supply and demand. Much smarter. You just need to add an inverter and you could run your home, lol. Just as a matter of interest could you give us some idea of the total cost of your project...

@BillyWu

2 жыл бұрын

Thanks! Yeah, this unit had an inverter on it which we used to power our electric guitar :) On the graphite question, yeah, this fuel cell stack had graphite bipolar flow plates but many of the automotive systems which are much lighter use metal stamped ones which are coated to prevent corrosion. On the cost point, good question! Hard to estimate since some of the stuff was provided in-kind from companies but in terms of components there's probably in excess of £10k worth of stuff here, though since it was more of a research/teaching project we didn't cost optimise. I do remember the wooden pallet was only £5. Good negotiation skills from our students.

HI! What if this type of system put in the live onboard blue water catamaran? Is it possible if you have 2kw solar onboard?

@BillyWu

3 жыл бұрын

Sure. This system was a bit more complicated but you can get simpler air cooled fuel cells which are much more compact. Horizon fuel cells do a range which are reasonably accessible. www.horizonfuelcell.com/

Thank you for your share. Is that possible to make it smaller in size to put into a scooter??

@BillyWu

2 жыл бұрын

Anything is possible, though this type of water cooled system is probably overkill. A more suitable fuel cell system would probably be a open cathode air cooled system such as the ones offered by Horizon (www.horizonfuelcell.com/hseries). These are quite simple and can also be paired with a metal hydride hydrogen storage system. Probably around 300W is enough for a e-scooter

I'm trying to build the most efficient hydrogen on demand generator to fuel a 5.3 liter LS Chevy suburban. Is stainless steel the best materials to produce the hydrogen needed ?

Curious if a smaller fuel cell generator could be cheaply built to run small appliances? Like 100 watts to run a box fan.

@BillyWu

3 жыл бұрын

Yeah, there have been smaller fuel cells in the past which power electronics. An example here. Not sure how popular they are but certainly exist and are possible. www.gooutdoors.co.uk/15916737/brunton-hydrogen-reactor-15916737

Billy Wu Do you have any videos on the actual physical build and the parts list?

@BillyWu

3 жыл бұрын

Sure. Further details on the system can be found in the papers linked below. Design and testing of a 9.5 kWe proton exchange membrane fuel cell-supercapacitor passive hybrid system www.researchgate.net/publication/261662622_Design_and_testing_of_a_95_kWe_proton_exchange_membrane_fuel_cell-supercapacitor_passive_hybrid_system Hydrogen PEMFC system for automotive applications academic.oup.com/ijlct/article/7/1/28/633929 If you want some bedtime reading the full build can be found in my PhD thesis Fuel cell hybrid electric vehicle powertrain modelling and testing core.ac.uk/download/pdf/76989968.pdf

@reypolice5231

3 жыл бұрын

@@BillyWu Thank you so much for your help. Does this system produce its own hydrogen, Or does another source be required? If you're using bottled hydrogen, as your input source, is there an additional offering on the hydrogen production system?

Hi, Dr Wu thank you for your video, Why we still have 2 DC-DC converter? I'm working on a similar project, is there any places where we can have the full details of this 9.5kw fuel cell? how is it stacked, how many single cells, the size of the cells and bipolar plates? thank you..

@BillyWu

2 жыл бұрын

Hi. Good questions. We had 2 DCDC converters in our case because the units we had sourced didn't have the required output current desired on their own. It's completely possible that this could have been a single unit. For the stack, this was manufactured by Nedstack and had 75 cells in series with an active area of 200 cm2. you can find out more details about the system in our paper linked here but the exact details of the stack in terms of design of bipolar plates isn't available unfortunately, since this is proprietary to the supplier www.sciencedirect.com/science/article/abs/pii/S0360319914007393

@newjx

2 жыл бұрын

@@BillyWu Hi Dr Wu. Thank you for this reply. Our project requires to make our own fuel cells but your response helped a lot. I hope I can share with you the results of our project. Have a great day.

I wish this was a portable power source that can be taken camping.

What’s the targeted price per unit?

How much was the total cost to build this project?

@krystalvang9659

10 ай бұрын

Couple grand

@thatelectritian

8 ай бұрын

​​@@krystalvang9659how much I got about 15k (all credit though but...)

Thank you Dr Wu. Is there plans to reverse the process and get what we need to make this economical.

@BillyWu

Жыл бұрын

Thanks for the comment. Not right now. We built this system a few years ago as part of a teaching and research project. At the time the various components meant that bringing it together was broadly uneconomical but the cost of fuel cells have come down. Hydrogen refuelling infrastructure and cost is still an issue for practical application.

Hi! Was I reading that right? This portable generator that was on display can generate almost 10 KW?

@BillyWu

3 жыл бұрын

Yeah, the fuel cell was rated at 9.5 kW but in reality the balance of plant and other components also had a parasitic loss so the peak power is below that

@justinnelson1565

3 жыл бұрын

@@BillyWu That's still amazing! Did you purchase the cells already made, or buy the materials then assemble yourself? I'm extremely interested in this DIY, you could scale this up and power a house with it! Or a car, like put these in a modified trunk and under the hood and power an electric vehicle! Wow! If you bought the cells or the materials, would you mind sending me a short list of just the core components in the fuel cell stack(anode, cathode, electrolyte material, PEM, etc), and where I can purchase them, I can figure out how the rest of it functions. I totally understand if you can't send me that data though! THANK YOU :)

@BillyWu

3 жыл бұрын

@@justinnelson1565 The membrane electrode assembles were provided by Johnson Matthey and the stack was put together by Nedstack as part of a collaboratative student project :) We've made our own stacks before but I wouldn't recommend it. Getting it completely gas tight was a nightmare! You can find an open access version of the paper on my researchgate profile www.researchgate.net/publication/261662622_Design_and_testing_of_a_95_kWe_proton_exchange_membrane_fuel_cell-supercapacitor_passive_hybrid_system and if feeling adventurous, complete details in my PhD thesis core.ac.uk/download/pdf/76989968.pdf

@justinnelson1565

3 жыл бұрын

@@BillyWu Ok, I will study those! :)

Hello I have an EV that need max. 20000W at 72-85 V. What would be the cost and size of such a fuel cell ?

Congrats

What exact modifications would have to be made To my gas powered vehicle in order to run hydrogen? What would you use instead of a fuel injector? How would it be stored safely? I enjoyed the video some of it was beyond my scope of education and knowledge to a deficit I would like to fully understand the basics of how to achieve a fuel conversion from gasoline to hydrogen without modifying too many components in the average automobile. Thank you !

@jb-xc4oh

2 жыл бұрын

Hydrogen is a lousy fuel to run a car engine because of its low energy density. Hydrogen is also very expensive and it needs special hi pressure tanks for storage of a limited amount. There is lots of information on the internet about this. Toyota recently ran a hydrogen fueled car in an endurance race, the results were disappointing. It used 10,000 psi tanks for storage and they had to be changed every 23 miles and the engine was lacking in power even though it was highly turbocharged with direct hydrogen injection into the cylinders. As for converting your gasoline powered car to run on hydrogen.......anything is possible if you have a wheel barrow full of money.

@juggernautz

2 жыл бұрын

@@jb-xc4oh Toyoata will sell a HHO car in less than 2 years so and Tesla even sooner. You info is full of lies from the liars so be wary of what you read.

@jb-xc4oh

2 жыл бұрын

@@juggernautz And where are you going to fill up with HHO in two years....where is the infrastructure for it.

@juggernautz

2 жыл бұрын

@@jb-xc4oh At home and over time a mini system could be built to fill up on the road. Look for the Hydrogen Corvette on youtube, that guy can go up to 400 miles and refills at home. So I;'m sure he has another car for extended travel. And yes I'm aware most hydrogen stations are in CA and a few other states but those ideas are different and keep people paying someone else for fuel. Elon Musk helped build recharge locations nationwide and in my town too. Still limited but his cars are mostly for local use unless you don't mind wasting the day every 200 to 300 miles.

@jb-xc4oh

2 жыл бұрын

@@juggernautz What lies....point out the errors I have made.

so to put compressed hydrgen though a spercompacacitor while still cool before feeding it to the fuel cell itself coulkd be efficient ?to hool a heatsink.

@sirJaymanz

3 жыл бұрын

?

@BillyWu

3 жыл бұрын

In theory pre-heating the hydrogen from the heat generated from the supercapacitors could be possible. The challenge is that you add additional complexity and the supercapacitors generally have a low resistance so low heat generation. We have a hydrogen humidifier in the system which uses the the same cooling loop as the fuel cell which generates quite a bit of heat.

will there be a consumer production model of this design made, i want one for the house

@BillyWu

2 жыл бұрын

Thanks for the comment. We built this a few years ago and whilst it works well, it's not well optimised/validated from a cost and durability perspective to put this into consumer production. There are a number of other fuel cell generators that are available that might be suitable

What about the high temperature membrane ? What are them advantages and disavantages vs others membranes ? Mayn thanks for your answer

@BillyWu

2 жыл бұрын

Great questions Michel. High temperature PEMs generally have more tolerance to impurities meaning they can operate on different fuels, however the systems tend to be more complex and costly. This wiki page gives a good overview of the pros and cons. en.wikipedia.org/wiki/High_Temperature_Proton_Exchange_Membrane_fuel_cell

@mitchdehotte

2 жыл бұрын

@@BillyWu many thanks happy new year!

How about some recycling of electrical current to create hydrogen and further reduce open circuit situations to add extra life to the system so here is the deal a small lithium ion battery is added a capillary membrane fed hydrolyzer that is fed by condensed fuel cell exhaust and a very small compressor for the hydrogen.. This hydrogen would become the feed after scrubbing but not drying back into the fuel cell with just a small pressure buffer tank. So you now idle the fuel cell after initial start up all the time with any excess energy going directly to hydrogen production plus when braking the vehicle excess energy after charging the small lithium ion battery goes back into the hydrolyzer. You still use your super capacitor buffers so now you have both a hybrid battery with hybrid fuel cell and very smooth load transition. An orderly shut down of the system with any excess energy being used to fully charge the lithium ion battery would also be desirable. The Lithium ion battery could be utilized to eliminate the 24vdc battery thus offering a weight saving to make up for the additional weight incurred from the hydrolyzer and scrubber. This new type of hydrolyzer is highly efficient so creates little heat reducing the need for additional cooling.

Dr.wu do you know someone that can help me build one?

How can we build something similar for a smaller model? i.e electric motorcycle

so nice very nice and high quality explanation. excellent work you all did

@BillyWu

3 жыл бұрын

Thank you very much!

Intersting video! How much would the build cost.. I'm not sure if its true but people are saying that piss is better than water haha 😂

@BillyWu

2 жыл бұрын

This was a prototype unit we built a few years ago so the cost is probably not that indicative of what a real system would be but I would say there is >10k worth of components on this. You could certainly use urine in a microbial fuel cell, though these systems generally have a low power density :)

@danrawson8515

2 жыл бұрын

@@BillyWu Thanks Billy! I wonder why there's nothing commercially available to run your house..

Can I know the difference between the opened cell and closed cell please

@BillyWu

3 жыл бұрын

Assuming you're referring to the cathode. Open cathode fuel cells usually have a fan which blows air through the stack where the bipolar plates normally have straight channels. Closed cathode fuel cell systems normally have more complicated serpentine flow channels and a higher pressure compressor to force air in. Generally open cathode cells are cheaper but lower in power density, than closed cathodes which are higher in power density but more expensive.

What is the total cost and list of the materials, used in this Passive Hydrogen Fuel Cell?

@jb-xc4oh

2 жыл бұрын

Take a guess..........I'd say about $50,000 if not more. Like all fuel cells its very very expensive, its the price you pay if you want zero CO2 emissions. I can go to Walmart and buy a 9500 Kw generator for about $900.00 but I'm pretty sure I can't afford this fuel cell.

@onekycarscanners6002

2 жыл бұрын

@jb Mr Wu has stayed away from talking of price, there is nothing there that will cost more than $999 minus company profit. Which is far cheaper than your gen considering your gen will struggle to do 15hrs per day for 10mths without you buying a new one. This can do 24hrs/day for two yrs with minor maintenance. You need to compare this Gen to a Nucle power station. Than an ICE or Even a Steam Turbine. No Noise, cheap, Environ friendly, mobile, Low or No ⛽ Fuel cost, remote running. Last longer than batteries 🔋.

Hi, Thanks for sharing this video. Can we discuss more about usable Hydrogen Generator for islands and zero electricity zones. I am from India, we can star our discussion via email...

can you put the by-product water back into an electrolyser and effectively back into the fuel cell

@BillyWu

Жыл бұрын

Good question. The short answer is yes. You could take the water from the fuel cell and put it into an electrolyser to make hydrogen and oxygen, to then put into the fuel cell again. The challenge is that the efficiency at each stage isn't great so you end up with a poor performing system from an electrical perspective but you could recover some of the heat.

@richardgumede542

Жыл бұрын

@@BillyWu okay so lets say i have a solar farm and a fuel cell. will using the solar to run the electrolyser help to boost efficiency? would this way be sustainable

@BillyWu

Жыл бұрын

@@richardgumede542 The efficiency of the electrolyser itself isn't really affected by where the energy comes but the problem is how much of the input energy is used. If you had lets say 1 kWh of solar energy. Converting this to hydrogen might be 50% efficient, and then converting this back to electricity in a fuel cell might be another 50% efficient meaning you only have 0.25 kWh of electricity. If you however put this into a battery with a 90% round trip efficiency then you have 0.9 kWh of useful electricity. Of course, if you can use the waste heat this changes the energy argument and also if you argue that you would be otherwise wasting the energy because the batteries aren't big enough there could be a case for doing this.

@richardgumede542

Жыл бұрын

@@BillyWu thank you very much this has been very informative. what about storing waste heat in molten salt, or Rondo Heat Battery (brick and rock)

Is there a way to access your document so that one can try to build it?

@BillyWu

2 жыл бұрын

Sure. Free versions of the papers which details the key bits of the build can be found in the below www.researchgate.net/publication/261662622_Design_and_testing_of_a_95_kWe_proton_exchange_membrane_fuel_cell-supercapacitor_passive_hybrid_system academic.oup.com/ijlct/article/7/1/28/633929

@danielsong1186

2 жыл бұрын

@@BillyWu Thank you so much!

can the fuel cell power itself to keep electrolysis running ?

@BillyWu

2 жыл бұрын

The fuel cell could provide electrical energy to an electrolyser to make more hydrogen however both devices have inefficiencies meaning that this can't be done indefinitely as energy gets lost to heat

Where do you source the fuel cell?

@BillyWu

Жыл бұрын

Good question. Our fuel cell stacks came from a company called Nedstack and we created our own balance of plant and control system

Yes but does it go up to 11?

@BillyWu

3 жыл бұрын

Yes! More power!

I want purchase this machine

I realize the focus is cars, but I see a lot more of potential for home and building use. I don't know what "can power 3 homes" means. In winter it takes 200kw hours to power my house for a month. And 100 kwhr of that is for heating. (Not exact numbers) You said the heat output is the same as the electric output. It appears to me a 100kwhr per month system would replace all my energy needs if I use the excess heat as It generates electricity. Have you ever worked up the numbers for residential use? Have you changed the monthly numbers to daily then hourly, seperate day and night loads. An ammonia cycle refrigerator, or ac cooling for cooling might be able to run off the excess heat as well. How hot can the radiator get and keep the hydrogen cell producing electricity? Home use no vibrations or mechanical loads. Electric loads change slowly. H2 Delivery would be easy.

@BillyWu

3 жыл бұрын

Some good points here. Obviously domestic energy consumption around the work varies. Think in the UK the average home might consume about 10 kWh/day with about 3 kW peak. The rough statement of powering 3 homes was just made on the basis that the fuel cell system is ~9 kW in power so can handle the peak load of 3 homes but if you can buffer the peaks it can handle more homes when operated continually. In Japan and Korea there is increasing interest in combined heat and power fuel cells to power homes as the efficiency is ~50% so you can get about as much heat as electricity. The exhaust of a PEM fuel cell is ~60 degC but you can get higher temperature fuel cells such as solid oxide systems which run at several hundred degrees to high higher quality heat.

@petercamusojr1545

3 жыл бұрын

@@BillyWu That implies to me uk homes use a fossil fuel for heat. I use a heat pump, but on extremely cold days it supplements heat with resistive heat $$. Back in the late seventies when my home was built. The push was for all electric homes. The thinking back then, was nuclear reactors would supply all the electric power. Which is the cleanest way to go then and now. Your fuel cell concept interests me in generating heat. 60 deg C heat is just fine if properly distributed. 130 kwhr per month of my electric use is just for heat. Off season my electric use drops to 500 -700 kwhr month. Summer cooling might be workable with just the electric output for ac systems. The biggest functional problem with solar occurs in winter when the sun energy is low and the need to store a weeks worth of energy due to weather (clouds, snow, rain). When a home needs energy the most, the sun isn't shining. Your fuel cell concept avoids all those problems. Even if H2 has to be delivered. Electric and heat combined is the best way to compare uk and the usa. I can think of a lot of offgrid applications. And reducing the grid load, reduces co2 emissions. And solar can be used to break h2o into H2 and o2. H2 is easy to store. I recommend thinking your system through, focus on the combined energy of electric and heating systems when proposing your concept to others. From everything you said I can totally eliminate my electric and heating bill. My only reference to Korea is from TV, which indicates very cold winters. Most of the world does not have reliable energy. You can make $ and a lot of people happy. Good luck.

@BillyWu

3 жыл бұрын

@@petercamusojr1545 Thanks. Great points here. Decarbonisation of heating and cooling is a major challenge that hasn't fully been resolved yet but I'm sure there will be more focus at this years COP26 climate change conference. Grass roots discussions like this are also equally important to generate awareness and spark work

man that is complicated, I was wondering if I could diy one, is it too advanced to make it at home? and without platinum?

@BillyWu

3 жыл бұрын

Yeah, unfortunately hydrogen fuel cells are more expensive and complicated than batteries. There are ready made kits with small fuel cells available which are accessible, however it's difficult to make your own fuel cell due to the components such as the proton exchange membrane. In theory you could likely make your own alkaline fuel cell, though it wouldn't be very efficient.

@arkatub

3 жыл бұрын

​@@BillyWu Didn't they use alkaline fuel cells on Apollo? Some hyper complex device I'm sure. I'd like to engage in some random experimentation at home but I have little understanding of this tech, what makes a good PEM? My vague idea is to impregnate various cleaning cloths with random hydrogen compounds, did you ever try hydro gel (hydro colloid gel)? How hot does it need to be to be efficient? Can you make a highly parallel design to spread out the heat?

@BillyWu

3 жыл бұрын

@@arkatub Yeah, they used to use alkaline fuel cells in the Apollo missions but CO2 poisoning can reduce lifetime which means they aren't really used in many applications. The advantage though is that alkaline solutions such as potassium hydroxide can be used which is quite cheap. A good PEM requires a good proton conducting membrane. Normally we use a material called Nafion which can be quite expensive. The key also is to get the 2 electrodes close together but not touch to reduce the losses. Most PEMs operate around 60-70°C to increase efficiency but if too hot it can dehydrate the membrane. You can find out more at a blog post I wrote www.linkedin.com/pulse/coming-age-hydrogen-fuel-cells-billy-wu/

@arkatub

3 жыл бұрын

@@BillyWu thanks for the reply, I'm thinking this is probably too complex for my understanding.

@BillyWu

3 жыл бұрын

@@arkatub Think it's within everyone's abilities but unfortunately the materials for this are a little bit less accessible.

Very nice video, only the carbon bs could de skipped. Try studying some real green houses where CO2 levels should be 100 times more so the plants can grow.

We have used the kzread.infoUgkxOTeIs0vv4_9B5hsmnLsk9r930uDQLu_Y for probably 30 hours with our camper and it’s been great! The noise level is really only noticeable when running the AC and other appliances like the microwave, hair dryer, or coffee pot. It’s not huge like other ones and it has wheels so even at 90lbs, I can move it!

Sir What is total cost of this system ? If it can power 3 homes then what will be the recovery cost (time to cover the capital cost of hydrogen fuel cell).

@BillyWu

3 жыл бұрын

Unfortunately, this system was quite high in price. I don't have the exact number but likely to be >£10k but this is mostly because this was a prototype system built as a student project so not a lot of cost optimisation was performed.

@muhammadumarilyas2218

3 жыл бұрын

@@BillyWu Will you recommend this system for renewable energy ?

@muhammadumarilyas2218

3 жыл бұрын

@@BillyWu Sir If I wanted to try this as my final year project What advice will you give me ? Or Things to consider the most while working on Such a System.

@BillyWu

3 жыл бұрын

@@muhammadumarilyas2218 Fuel cells are quite complex systems to control. For a final year project having a clear research question is good and perhaps focusing on 1 aspect would allow for sufficient detail. Really depends on your interest, but system control is probably a good one where you need good models of the balance of plant, fuel cell and from that you can investigate various control strategies. Off the shelf components are good here as self developed components can have lots of problems and take time to trouble shoot. This project was the outcome of various student projects put together.

@BillyWu

3 жыл бұрын

@@muhammadumarilyas2218 If you can get green hydrogen then its reasonably sustainable, however direct storage of electricity in batteries will be more efficient, though fuel cells have their role in a sustainable system.

65 bucks for 10X10 cm piece of nafion, how long will it last?

How to make that

Fiel cell to Battery to inverter = AC voltage.

dude which course did u choose to study about this subject

@BillyWu

3 жыл бұрын

Much of the work was done by mechanical engineering students. Lots of heat transfer, mechanical design, fluid dynamics and control.

what's is the cost ?

@BillyWu

3 жыл бұрын

We built this quite a few years ago and it wasn't really optimised but overall the components probably came to >£20k though we got some of these in-kind. The big cost items were the fuel cell which came from Nedstack, the supercapacitors from Maxwell, the inverter from Victron and the control system from National Instruments. The various balance of plant components also added up with items such as the humidifier, flow meters, DCDC converters, pumps and blower adding up. I'm sure cost could be reduced but this was more a development platform and demonstrator

I'm kinda new to this, why do we need nitrogen?

@BillyWu

3 жыл бұрын

Good question. In our case we had a nitrogen supply to purge the anode of hydrogen after we ran the fuel cell. If we don't then residual hydrogen stays in the anode and can accelerate the degradation. In practice for a fuel cell system you might not have this but this was more of a development unit so we wanted to keep it in top shape

I kept thinking he would get around to showing us how he built the unit in the picture… nope.

When i can good pemfc and orca 2 device

wow! I'm so pleased this piece of equipment supports my view water is not H2O!!

How to make diy fuel cell.?

@NyomanSuryasa

3 жыл бұрын

Can you explaint how to make diy fuel cell. For we are build together. Really 10Kw fuel cell????

@BillyWu

3 жыл бұрын

DIY fuel cell is a bit tricky. We did this a few years ago and had issues with leaks and sealing. If you did want to try the core components are a membrane made from a material called nafion. Normally we get catalyst coated membranes which have a layer of carbon and platinum on it. You then lay a layer of carbon paper on top of this which we call a gas diffusion layer. Finally you need to sandwich this in between some graphite plates with channels machined into them and hold them together with some insulated steel plates. Might to better to buy off a shelf fuel cell where its easier to integrate the system.

cost

Great lecture on the science of hydrogen but misleadingly titled. Doesnt show how to make anything

@BillyWu

3 жыл бұрын

Thanks. Yeah, I suppose I was presenting our system design and schematic rather than making the fuel cell itself but a fair point.

achhh talking again, i was thinking its working hydrohen cell show... Everyone knows that, practice is wanted

9kw cannot power 3 homes.

رقم واحد مخ القمر الشمسي رسول الله الاسرائيلي المنير

There's nothing in the video that shows how to actually make this generator I don't understand you just talk about different app different aspects of the generator without showing any type of DIY how to actually put it together Can you give us a response

This made me so angry. So much loss to heat !

@BillyWu

Жыл бұрын

You're right that the efficiency isn't perfect with fuel cell efficiency ~50%. This is still better than many internal combustion engines at ~30% but room for improvement. Combined heat and power units have been proposed which recover this waste heat to increase the effective efficiency. Heating in general is a huge challenge.

You are COMPLICATE THINGS, you can get HYDROGEN from everything. So BLIND.

Wonder if you could add a system like this to a boat and hook up additional solar panels and make your own hydrogen fuel?

@BillyWu

Ай бұрын

Fuel cell systems could certainly power boats. You could have a solar system also but would need to have an electrolyser to split the water to hydrogen and then compress it for storage which is a bit costly and complex at small scale. A battery system could be a simpler and more efficient way to collect solar; working alongside a fuel cell system

@Firetiger93

Ай бұрын

@@BillyWu If I understand how fuel cells work then its comparable to a normal gas engine as far as power density but with hydrogen as fuel. If you have a solar/battery setup and the fuel cells as the backup you could effectively live off grid and never need to invest anything more than the initial cost of the whole system rather than having to rely on something like a diesel engine. I love the idea of only having to earn enough for repairs and food on a boat and this could be an option someday for making boat living a more viable option.

Is your email id in video is valid to send email.

@BillyWu

2 жыл бұрын

Yeah

@saleeshjoseph

2 жыл бұрын

@@BillyWu send you mail. Sal