Have you ever felt finding the Adiabatic Temperature is difficult? If so, don't bother anymore as we have a handy online Tool Adiabatic Flame Temperature Calculator. You can get the Adiabatic Flame Temperature of the combustion products in the blink of an eye on entering the inputs.
Adiabatic Flame Temperature Calculator: If you are looking out on ways to determine the Adiabatic Flame Temperature then make use of this extraordinary online tool i.e. Adiabatic Flame Temperature Calculator. The handy tool gives you instant results along with necessary steps. Continue reading further to know the details like What does Adiabatic Flame Temperature actually mean, its formula, steps to compute AFT manually along with few solved examples.
Whenever a combustion reaction occurs eneregy is released to the combustion products. If at all there is no heat loss in the process the temperature of combustion products is known as Adiabatic Flame Temperature.
Adiabatic Flame Temperature of Various Products in Kelvin
|Fuel||Adiabatic Flame Temperature
|Benzene - C6H6 3)||3784||2363|
|Acetylene - C2H24)
|n-Butane - C4H10 1)||3867||2248|
|Butylene - C4H8 2)||3867||2494|
|iso-Butane - C4H10 1)||3861||2246|
|Ethane - C2H6 1)||3903||2222|
|Ethylene - C2H4 2)||3932||2375|
|Methane - CH4 1)||3953||2236|
|Hydrogen - H2||3473||2483|
|Neopentane - C5H12 1)||3850||2511|
|Naphthalene - C6H14 4)||3943||2533|
|n-Hexane - C10H8 1)||3682||2494|
|Neohexane - C6H14 1)||3838||2508|
|n-Heptane - C7H16 1)||3851||2469|
|iso-Pentane - C5H12 1)||3857||2508|
|n-Pentane -C5H12 1)||3848||2505|
|n-Pentene - C5H10 2)||3865||2569|
|Propane - C3H8 1)||2526||2250|
|Propylene- C3H6 2)||3902||2528|
|Toluene - C7H8 3)||3786||2344|
|p-Xylene - C8H10 3)||3788||2483|
|Triptane - C7H16 1)||3836||2497|
In general, there are two types of Adiabatic Flame Temperature and they are namely
Constant Pressure Adiabatic Flame Temperature:
As per the first law of thermodynamics at constant pressure ∆U = Qρ- Wp = Qρ - ρ∆V
H = U+ρ∆V
At constant pressure ∆H = ∆U+ρ∆V+V∆ρ =∆U+ρ∆V
In case of Adiabtic Conditions Qρ = 0, ∆H =0
In Equilibrium Reaction HReactants = HProducts
We know ΣHProducts(Ti,ρ) = Σni[∆H0f,i+Ai(T-TR)+Bi/2(T-TR)2+Ci/3(T-TR)2]
Flame Temperature can be determined considering the above equation. We will assume QVL =0. If we use the mean heat data capacity we have ΣHProducts(Ti,ρ) = Σni[∆H0f,i + (C¯ρ,l)(Tad-TRef)
Constant Volume Adiabatic Flame Temperature
As per the first law of thermodynamics QV = ∆U, QP-nRT = ∆HP-∆nRT
In case of adibatic process QV = 0 = ∆HP-nRT
HReactants(Ti, ρi) - HProducts(Tad, ρf)-R(nreactantsTi - nProductsTad) = 0
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1. What affects Adiabatic Flame Temperature?
The Primary factors that influence the Adiabatic Flame Temperature are Fuel Air Ratio, Initial Temperature, Pressure and Fuel Type.
2. Does Adiabatic Flame Temperature increase with pressure?
At high pressures Adiabatic Flame Temperatures usually decrease instead of increasing as high pressure in the combustion chamber creates a back pressure.
3. How to find the Adiabatic Flame Temperature at constant volume?
At Constant Volume Adiabatic Flame Temperature can be found by equating internal energy of products and reactants.
4. Which gas has the highest Adiabatic Flame Temperature?
Zirconium has the highest Adiabatic Flame Temperature.