# How to Calculate and Solve for %Heat Loss from Openings in Furnace | Fuel and Furnaces The image above represents %heat loss from openings in furnace.

To compute for %heat loss from openings in furnace, five essential parameters are needed and these parameters are Black Body Radiation (BR), Emissivity (E), Radiation Factor (RF), Quantity of Oil (Q) and Gross Calorific Value of Oil (GCVoil).

The formula for calculating %heat loss from openings in furnace:

%QL = 100(BR x E x RF/Q x GCVoil)

Where:

%QL = %Heat Loss from Openings in Furnace
E = Emissivity
Q = Quantity of Oil
GCVoil = Gross Calorific Value of Oil

Let’s solve an example;
Find the %heat loss from openings in furnace when the black body radiation is 15, the emissivity is 6, the radiation factor is 3, the quantity of oil is 24 and the gross calorific value of oil is 9.

This implies that;

BR = Black Body Radiation = 15
E = Emissivity = 6
RF = Radiation Factor = 3
Q = Quantity of Oil = 24
GCVoil = Gross Calorific Value of Oil = 9

%QL = 100(BR x E x RF/Q x GCVoil)
%QL = 100(15 x 6 x 3/24 x 9)
%QL = 100(270/216)
%QL = 100(1.25)
%QL = 125

Therefore, the %heat loss from openings in furnace is 125%.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the %heat loss from openings in furnace.

To get the answer and workings of the %heat loss from openings in furnace using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

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Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering. Now, Click on Fuel and Furnaces under Materials and Metallurgical Now, Click on %Heat Loss from Openings in Furnace under Fuel and Furnaces The screenshot below displays the page or activity to enter your values, to get the answer for the %heat loss from openings in furnace according to the respective parameter which is the Black Body Radiation (BR), Emissivity (E), Radiation Factor (RF), Quantity of Oil (Q) and Gross Calorific Value of Oil (GCVoil). Now, enter the values appropriately and accordingly for the parameters as required by the Black Body Radiation (BR) is 15, Emissivity (E) is 6, Radiation Factor (RF) is 3, Quantity of Oil (Q) is 24 and Gross Calorific Value of Oil (GCVoil) is 9. Finally, Click on Calculate  As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the %heat loss from openings in furnace and presents the formula, workings and steps too.