JUNKER’S GAS CALORIMETER

JUNKER'S GAS CALORIMETER, Model MIC147

(Used for finding out calorific value of gaseous fuels) The standard equipment consists of chiefly the calorimeter with burner on Tripod stand, gas flowmeter (Non recording type) pressure governor. This calorimeter is designed to cover a wide range between 120 B.Th. U and 3000 B.Th/Cu.Ft or 26000 K. Cals/Cu. Meter. The calorimeter mainly consist of gas combustion chamber, heat exchanger and water flow system.

Heat exchanger is deisigned for maximum heat transfer efficiency and is fabricated out of heavily tinned copper sheet. There is constant water head maintenance device provided in the feed water pipe along with the inlet flow regulator and fitted to the outer housing of the calorimeter. The outer housing is fabricated out of stainless steel.

Over-flow tube is from the constant water head device. Water from this constant water head device enters the bottom of the heat exchanger through inlet water-flow regulator and rises slowly to escape through the outlet provided in the upper portion of the calorimeter.

During this flow, water is heated by the flue gases passing through the coils of heat exchange. Two thermometers are provided in the water inlet and outlet ports. The air gap between heat exchanger and outer housing acts as insulator and minimizes the heat loses.

The calorimeter is provided with a rod at the bottom for clamping the burner and an outlet for condensate form gases. The calorimeter is fitted with three legs with adjustable levelling screws.