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Net Calorific Value means the specific amount of energy released as heat when a fuel undergoes complete combustion with oxygen under standard conditions. Check FAQs
NCV=GCV-(m⋅λ)
NCV - Net Calorific Value?GCV - Gross Calorific Value?m - Weight of Water Vapour?λ - Latent Heat of Vaporization of Water?

Net Calorific Value Example

With values
With units
Only example

Here is how the Net Calorific Value equation looks like with Values.

Here is how the Net Calorific Value equation looks like with Units.

Here is how the Net Calorific Value equation looks like.

370Edit=400Edit-(15Edit⋅2Edit)
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Net Calorific Value Solution

Follow our step by step solution on how to calculate Net Calorific Value?

FIRST Step Consider the formula
NCV=GCV-(m⋅λ)
Next Step Substitute values of Variables
∴ NCV=400kJ/m³-(15kg⋅2kJ/kg)
Next Step Convert Units
∴ NCV=400000J/m³-(15kg⋅2000J/kg)
Next Step Prepare to Evaluate
∴ NCV=400000-(15⋅2000)
Next Step Evaluate
∴NCV=370000J/m³
LAST Step Convert to Output's Unit
∴NCV=370kJ/m³

Net Calorific Value Formula Elements

Variables
Net Calorific Value
Net Calorific Value means the specific amount of energy released as heat when a fuel undergoes complete combustion with oxygen under standard conditions.
Symbol: NCV
Measurement: Calorific ValueUnit: kJ/m³
Note: Value should be greater than 0.
Formulas to find Net Calorific ValueOpen Variable
Gross Calorific Value
Gross Calorific Value indicates how much energy can be released during the complete combustion of a given amount of fuel.
Symbol: GCV
Measurement: Calorific ValueUnit: kJ/m³
Note: Value should be greater than 0.
Formulas to find Gross Calorific ValueOpen Variable
Weight of Water Vapour
Weight of Water Vapour is the form of a gas resulting from heating water or ice.
Symbol: m
Measurement: WeightUnit: kg
Note: Value should be greater than 0.
Formulas to find Weight of Water VapourOpen Variable
Latent Heat of Vaporization of Water
Latent Heat of Vaporization of Water is the amount of thermal energy that must be added to change a liquid to a gas.
Symbol: λ
Measurement: Latent HeatUnit: kJ/kg
Note: Value should be greater than 0.
Formulas to find Latent Heat of Vaporization of WaterOpen Variable

Other Formulas to find Net Calorific Value

​Go Net Calorific Value Based on Weight Percent of Hydrogen
NCV=GCV-(Weight % of H2⋅9⋅λ100)
​Go Net Calorific Value given Weight Fraction
NCV=GCV-(WtH2⋅9⋅λ)

Other formulas in Fuel and Combustion category

​Go Percent Excess Air
% Excess Air=(MFed-MTheoreticalMTheoretical)⋅100
​Go Theoretical Air Requirement
AirTheoretical=O2Demand0.21
​Go Percent Excess Oxygen
% Excess O2=(0.21⋅(MFed-MOxyTheo)MOxyTheo)⋅100

How to Evaluate Net Calorific Value?

Net Calorific Value evaluator uses Net Calorific Value = Gross Calorific Value-(Weight of Water Vapour*Latent Heat of Vaporization of Water) to evaluate the Net Calorific Value, The Net Calorific Value formula is defined the amount of usable heat energy released when a fuel is burned under conditions similar to those in which it is normally used. The amount of heat spent in transforming the water into steam is not counted as part of net heat content. Net Calorific Value is denoted by NCV symbol.

How to evaluate Net Calorific Value using this online evaluator? To use this online evaluator for Net Calorific Value, enter Gross Calorific Value (GCV), Weight of Water Vapour (m) & Latent Heat of Vaporization of Water (λ) and hit the calculate button.

FAQs on Net Calorific Value

What is the formula to find Net Calorific Value?
The formula of Net Calorific Value is expressed as Net Calorific Value = Gross Calorific Value-(Weight of Water Vapour*Latent Heat of Vaporization of Water). Here is an example- 0.37 = 400000-(15*2000).
How to calculate Net Calorific Value?
With Gross Calorific Value (GCV), Weight of Water Vapour (m) & Latent Heat of Vaporization of Water (λ) we can find Net Calorific Value using the formula - Net Calorific Value = Gross Calorific Value-(Weight of Water Vapour*Latent Heat of Vaporization of Water).
What are the other ways to Calculate Net Calorific Value?
Here are the different ways to Calculate Net Calorific Value-
  • Net Calorific Value=Gross Calorific Value-((Percentage Weight of Hydrogen*9*Latent Heat of Vaporization of Water)/100)OpenImg
  • Net Calorific Value=Gross Calorific Value-(Weight Fraction of Hydrogen*9*Latent Heat of Vaporization of Water)OpenImg
Can the Net Calorific Value be negative?
No, the Net Calorific Value, measured in Calorific Value cannot be negative.
Which unit is used to measure Net Calorific Value?
Net Calorific Value is usually measured using the Kilojoule per Cubic Meter[kJ/m³] for Calorific Value. Joule per Cubic Meter[kJ/m³], Kilocalorie per Cubic Meter[kJ/m³], Megajoule per Cubic Meter[kJ/m³] are the few other units in which Net Calorific Value can be measured.
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