So difficult to find info on the internet these days. You really helped me

You're a blessing my friend

Very good, thank You!!!

How to calculate solar heat intensity (I) W/m2? Any theoretical formula?

OMG That's exactly what I need! thx

I want to heat a nichrome coil so I can boil water, I want it to reach 200 C degree in a minute Can I use your equation to know how much power do I need ???

can you please open up a subject on the design of heating coil for roaster?

I need to heat water with mch heaters but there is a problem i don't understand that how much power i have to give to it

very good way of explanation,,, can you plz guide to any video or link for calculating time needed to heat metal from 20 celcius to 100 celcius, 50mm sqaure aluminum pipe, 2mm wall thickness,, 1 meter long,, in closed chamber or oven (lhw 1,5 x 0,25 x 0,25m), having constant heat source, 100 watts heating element,, and some air circulation.

hey i am unaware of the BTU conversion for the specific heat of aluminium that you used. The aluminum i am using has a Cp of 714.8J/kg.K and deltaT is 110C and 1hr heating time....can you please help with this?

@donnymontreano2045

Жыл бұрын

convert the delta celcius into Kelvin

Well, it gives somehow the right idea, but it should be devided by time, not multiplied by time. Either that or correct use of parenthesis is required to repair your equation.

@kevinnazeraj1799

3 жыл бұрын

Exactly because kw=power=kjouls/s

Hi, I want to calculate kw for a tempering furnace, where my load is 250 Kg, material is iron, max temp 660 deg, soaking time 120 min Please suggest

@DwyerOmega

3 жыл бұрын

Thank you for your inquiry. You still need to know your Starting Temperature to get your Delta Temp°F (Target (660°) - Starting (?°F). Iron has a specific heat of 0.108 Btu/lb°F. Use the same equation shown in the video.

In the case of muffle furnace What should the weight of material and specific heat be ? Please i need a help

@DwyerOmega

3 жыл бұрын

Hello Hussam, thanks for your question! In the case of a muffle furnace, you would use the Free Air Heating Equation: Kw = (SCFM x Temperature Rise °F)/3000

Good bro i know it already because, i am furnace manufacturer

Sir can you please give me a suggestion to how consider the TCU (TEMPRATURE CONTROL UNIT) for the rubbery Extruder please please please please please please

@DwyerOmega

2 жыл бұрын

Thanks for asking! Contact one of our engineering experts at: temperature@omega.com

I fucking love you dude

I want to make heaters for my plastic extruder Bailer dia 23.5 inches Where my starting temp 30 °c And required temperature 300°C Applied voltages 440 v ac Which no of wire I can use and how long plz tell me

@DwyerOmega

2 жыл бұрын

Hello and thanks for your question! It depends on the wattage rating for the heater you are building. Wire gauges have ampere limitations that can be found in the table on this data sheet from Omega: assets.omega.com/pdf/cable-and-wire/heating-wire/NI80.pdf

How to calculate the wattage required to heat a tank containing liquid at a given temperature?

@donnymontreano2045

Жыл бұрын

Water = 1 kg CP = 1.001 BTU/lb F Delta temp = 78F - 100F= 22F Hour = 1 ((1 x 1.001 x 22F)/3412) x 1 hour = 6.45 watt

What if Im gonna calculate for the wattage of a liquid chemical. Do I need to calculate for the volume of the tank not the weight.

@DwyerOmega

Жыл бұрын

For this you will need to use the formula Q = m*c*∆T. Q (joules); m (mass of chemical); c (specific heat of chemical); ∆T (change in temperature °C). Then convert joules to watts.

Weight or Mass?

Sir furnace ka kw and heater sulection

What will be the solution for -20 C and for 8000 meter lenght pipe line?

@DwyerOmega

Жыл бұрын

For consultations please contact our Heater Department at heaters@omega.com.

NOICE

Hello sir i need your help

In closed vessel medium air formula???

@DwyerOmega

3 жыл бұрын

Thank you for your inquiry! We have our generic air flow formula: kilowatts = SCFM x (Target - Starting Temperature °F) / 3000 If you need more information, call or chat online at omega.com and speak with one of our Application Engineers.

No audio re record it

How you selected conversation factor?

@DwyerOmega

3 жыл бұрын

Thank you for your inquiry. The conversion factor is used because kilowatt-hour is a standard unit of electricity production and consumption. However the relationship between the kilowatt-hour and the BTU depends on which "BTU" is used. It is common, but not universal, to use: 1 kWh = 3412 BTU

@deitmagnet947

Жыл бұрын

@@DwyerOmega isn't it BTU be converted to kilojoules? And watts is a unit of power wherein it's in J/s

Still can’t figure it out, I’m stupid I guess, I just need to know how hot a silicon rubber mat 3/6” thick with heater element wound throughout the mat 2”x 5” 120v and 50 watts, the average temp of inside house is 68 degrees, don’t know everything you need to figure out problem thanks I’ll keep searching

@axelateon1384

2 ай бұрын

yeah you are totally stupid

the correct formula should be Kw= (5.0X0.21X90)/(3421X1), or (5.0X0.21X90)/3421/1

@nikpik9584

2 жыл бұрын

the second one

3412?

@MariaHernandez-ml3tq

2 жыл бұрын

It's a conversion Factor, BTU/kWh

Based on your formula heater wattage increases with increased heat up time? Should it not be the opposite? More power would heat up the same volume faster, not slower?

@mayneac

5 ай бұрын

Finally figured it out despite your application engineer refusing to help - the second half of the equation is missing a parentheses, duration (h) should be in the denominator as well).

I CALCULATED MANY TIMES IN DIFFERENT CONFIGURATION ALSO INCLUDING YOUR EQUATION ITS WRONG AND PLEASE REVISE

LOL He conveniently uses 1 hour heat up time so his error does not show up in the calculation. Someone is playing a joke on you - to the detriment of the company. Don't blame this guy- he's just an actor.

@axelateon1384

2 ай бұрын

lmao

What about heat loss? I think this equation (the equation he is trying to make) is based on a perfectly insulated system with no heat loss. Surely on a cold day it's going to take much more heat than this. This really gives a bad name for "Engineering" especially when "Omega" is attached. I think the 95 "Thumbs up" are from Omega employees. I would check other sources before I trusted any information from this (Omega) site.