Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . efore taking readings. A peep-holeis arranged through the insulation at the side of the calorimeterand a reflector below the fire tube to observe the fire. Provision ismade for temperature readings as follows: Temperature of room T Temperature of water in radiant heat calorimeter T, Temperature of gases leaving fire chamber T2 Temperature of water leaving Junker calorimeter T3 Temperature of water entering Junker calorimeter. .. .T^ Temperature of gases leaving Junker calorimeter T5 The desired velocity
Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers . efore taking readings. A peep-holeis arranged through the insulation at the side of the calorimeterand a reflector below the fire tube to observe the fire. Provision ismade for temperature readings as follows: Temperature of room T Temperature of water in radiant heat calorimeter T, Temperature of gases leaving fire chamber T2 Temperature of water leaving Junker calorimeter T3 Temperature of water entering Junker calorimeter. .. .T^ Temperature of gases leaving Junker calorimeter T5 The desired velocity and volume of the gases are obtained by avariable speed motor-fan and an anemometer located at the fanoutlet. The pipe carrying the gases between the two calorimetersis thoroughly insulated. Any air pressure may be maintained inchamber V. During the series of tests four degrees of pressurewere maintained; atmospheric, ten inches, twenty inches and twenty-eight inches. To assist the fire in starting, an eleven volt circuitwith platinum glow is placed in the fire pot. The equivalent heat. APPARATUS FOR THE STI»Y OK RAIUATION 497 given off by this circuit is finally deducted from the experimentalsummation for the heat balance. Fig. 2 shows the apparatus in theprocess of construction and Fig. 3 shows it completed. The method of procedure in burning any one sample of fuel isas follows: water is circulated through the Junker calorimeter andupon the temperatures T3 and T^ becoming constant the switch isclosed thus lighting the fire and starting the motor. The fuel usu-ally begins to flame in one minute and the wire is kept hot fortwo minutes. After the first two minutes the speed of the air is
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