What is junkers gas calorimeter?

What is junkers gas calorimeter?

Junker’s calorimeter which is also known as Junker gas calorimeter is used to determine the calorific value of the gas in this process. Junker’s calorimeter is used to determine the calorific value of fuel or fuel gases at low temperature.

What is the practical importance of boys gas calorimeter?

Boy’s gas calorimeter was designed to get accurate values of the higher and lower calorific value of given fuel. Mainly we can measure the calorific value of gaseous fuels only because the practical apparatus was designed for that purpose.

What is gas calorimeter?

Gas Calorimeter CM6G The CM6G Gas Calorimeter is used to measure and control the calorific value or Wobbe Index (WI) of the sample gas.

How does a gas calorimeter work?

Combustion Calorimeters measure the heat released from a combustible solid-liquid substance. This is done by weighing a precise measure of the sample substance into a crucible, placing the crucible inside a “bomb” (a sealed metal cylinder called a vessel), filling the vessel with oxygen and igniting the substance.

What is a bomb calorimeter used for?

bomb calorimeter An apparatus primarily used for measuring heats of combustion. The reaction takes place in a closed space known as the calorimeter proper, in controlled thermal contact with its surroundings, the jacket, at constant temperature.

What is the basic principle of Junker’s calorimeter?

PRINCIPLE OF OPERATION This Gas Calorimeter works on the Junker’s principle of burning of a known volume of gas and imparting the heat with maximum efficiency to steadily flowing water and finding out of the rise in temperature of a measured volume of water.

What is boy’s gas calorimeter?

Boys gas calorimeter (gas calorimeter) An apparatus used to determine the calorific values of gaseous fuels based upon a counterflow heat exchanger in which water flowing in one direction is heated by burned gas flowing in the other…. …

How does a boys calorimeter work?

This calorimeter is used for determining the calorific value of gaseous and volatile liquid fuels. gas sample in a combustion chamber. The released heat is quantitatively absorbed by cooling water, circulated through the copper coils surrounded the combustion chamber.

How much does a calorimeter weigh?

In more recent calorimeter designs, the whole bomb, pressurized with excess pure oxygen (typically at 30 atm) and containing a weighed mass of a sample (typically 1–1.5 g) and a small fixed amount of water (to saturate the internal atmosphere, thus ensuring that all water produced is liquid, and removing the need to …

What is oxygen bomb calorimeter?

Oxygen bomb calorimeters measure the heat of chemical reactions or physical changes. This is done by performing the reaction in a container that maintains constant volume and they are thus designed to withstand the pressure that builds up as the reaction occurs.

What is the function of bomb calorimeter?

5.4 Calorific value. The Bomb Calorimeter (Model-IKA C2000) was used to measure the cross calorific value of the solid and liquid samples. It is a constant-volume type calorimeter that measures the heat of a particular reaction or measures the calorific value of the fuels.

Where are the thermometers on a Junker gas burner?

Two thermometers are provided in the water inlet and outlets ports. Temperature of the effluent gas can be measured from the thermometer fixed at the exhaust gas outlet. Provision for fixing the burner is provided at the Calorimeter base. An outlet for collection of condensate is provided at the bottom.

What is the calorific value of Junker gas?

Junker gas calorimeter used to determine the calorific value (1000 Kcal/m3 – 26000 Kcal/m3) of fuel / flue gases at low pressures (2″ to 12″ W.G).

What kind of system does a calorimeter have?

The Calorimeter mainly consists of a gas combustion chamber, heat exchanger and water flow system. Heat exchanger is designed for maximum efficiency of heat transfer and is fabricated out of heavily tinned copper sheet.

How to calculate the calorific value of gas?

The formula, Calorific Value of Gas X Volume of Gas = Volume of water X Rise in Temperature, is then used to determine the Calorific Value of the Gas (assuming that heat capacity of water is unity).