What does Wobbe index measure?

interchangeability of fuel gases
The Wobbe Index (WI) or Wobbe number is an indicator of the interchangeability of fuel gases such as natural gas, liquefied petroleum gas (LPG), and town gas and is frequently defined in the specifications of gas supply and transport utilities. is the molar mass of air which is about 28.96 kg/kmol.

What is the difference between calorific value and Wobbe index?

The key difference between Wobbe index and Calorific Value is that the Wobbe index indicates the interchangeability of fuel gases whereas the Calorific Value indicates the total amount of heat energy generated when we burn a unit mass of fuel.

What is the formula for Wobbe index?

The Wobbe index may be defined as Iw = Vc/(Gs)^1/2 where Iw is the Wobbe index, Vc is the HHV value for the fuel and Gs is its specific gravity. Calculate the Wobbe index for a typical fuel. The HHV of natural gas is typically 1,050 Btu / cubic foot and its specific gravity is about 0.59.

What is the Wobbe number of natural gas?

Pure methane has a Wobbe number of 1363; natural gas as piped to homes in the United States typically has a Wobbe number between 1310 and 1390.

What is lower Wobbe index?

The Wobbe Index indicates the interchange ability of a fuel gas and is the best indicator of similarity between natural gas and a specific propane-air mixture. Fuel Gas. Upper Wobbe Index. (kcal/Nm3) Lower Wobbe Index.

What is Modified Wobbe index?

The Modified Wobbe Index is a calculated. measurement of volumetric energy content of. fuel and is directly related to the fuel tempera- ture and lower heating value (LHV).

What is a Wobbe number?

The Wobbe Number or Wobbe Index describes the way in which the gas burns and is calculated as a factored ratio of CV and specific gravity (SG otherwise known as relative density).

What is lower Wobbe Index?

What is Wobbe number?

What is Modified Wobbe Index?

What does the word calorific mean?

Definition of calorific 1 : caloric. 2 : of or relating to heat production.