Q&A Forum
Get a free home demo of LearnNext

Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back

clear

Asked by Saranya Sabarinath

Dec 19, 2014

WHAT IS CALORIFIC VALUE?

WHAT IS CALORIFIC VALUE?

Answers(3)

Answer

Vaibhav Khatri

Member since

Calorific Value (CV) is a measure of heating power and is dependent upon the composition of the gas. The CV refers to the amount of energy released when a known volume of gas is completely combusted under specified conditions.

Vaibhav Khatri

Member since

Calorific value is defined as the amount of heat energy produced on complete combustion of 1 kilogram of a fuel. It is expressed in a unit called kilojoule per kg. The higher the calorific value of a fuel, the more is its efficiency.

Table below shows calorific value of different fuels:
     Fuel   Calorific value
Hydrogen     150000
LPG      55000
CNG      50000
Methane      50000
Petrol      45000
Kerosene      45000
Diesel      45000
Biogas      40000
Coal      33000
Wood      22000
Cow dung      8000

Each kilogram of LPG produces much more heat than one kilogram of wood or coal. The calorific value of LPG is the highest among wood, charcoal and LPG. In rural areas, cow dung and wood are still used as fuel because these are very cheap and easily available.

Satyanarayana Prasad

Member since Apr 24, 2013

Ans: Calorific value:
Calorific value is defined as the amount of heat energy produced on complete combustion of 1 kilogram of a fuel. It is expressed in a unit called kilojoule per kg. The higher the calorific value of a fuel, the more is its efficiency.

Table below shows calorific value of different fuels:

     Fuel   Calorific value
Hydrogen     150000
LPG      55000
CNG      50000
Methane      50000
Petrol      45000
Kerosene      45000
Diesel      45000
Biogas      40000
Coal      33000
Wood      22000
Cow dung      8000

Each kilogram of LPG produces much more heat than one kilogram of wood or coal. The calorific value of LPG is the highest among wood, charcoal and LPG. In rural areas, cow dung and wood are still used as fuel because these are very cheap and easily available.
Like NextGurukul? Also explore our advanced self-learning solution LearnNext
Offered for classes 6-12, LearnNext is a popular self-learning solution for students who strive for excellence
Explore
Animated Video
lessons
All India
Test Series
Interactive Video
Experiments
Best-in class
books

Join India's most happening

Educational community