. Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers. llege, StateCollege, Pa. Representing Engineering Experiment Station at the College. Presented at the Semi-Annual Meeting of the American Society of Heating and Venti-lating Engineers, Cleveland, Ohio, June, 1921. 385 386 Transactions of Am. Soc. of Engineers sists of two buildings, the generating plant and the calorimeter building,as shown in Fig. 1. A description of the plant is given in Bulletin No. 30,Heat Transmission: Corkboard and Air Spaces, by A. J. Wood andE. F. Grundhofer of the E
. Transactions - American Society of Heating, Refrigerating and Air-Conditioning Engineers. llege, StateCollege, Pa. Representing Engineering Experiment Station at the College. Presented at the Semi-Annual Meeting of the American Society of Heating and Venti-lating Engineers, Cleveland, Ohio, June, 1921. 385 386 Transactions of Am. Soc. of Engineers sists of two buildings, the generating plant and the calorimeter building,as shown in Fig. 1. A description of the plant is given in Bulletin No. 30,Heat Transmission: Corkboard and Air Spaces, by A. J. Wood andE. F. Grundhofer of the Engineering Experiment Station, from whichthe following is taken. The generating plant is a brick building 50 ft. by 18 ft. Its equipment,shown in Fig. 2, consists of a complete 3-ton experimental refrigeratingsystem of the compression type, a variable speed circulating pump forcarrying the brine to the calorimeter building and a motor-driven aircompressor. The installation is such that the plant can be driven eitherby electricity or by steam since it includes motors, steam engines and a. FIG. 1. THERMAL TESTING PLANT BUILDING, PENNSYLVANIA STATE COLLEGE. STATE COLLEGE, PA. steam boiler. The observers bench. Fig. 3, is also located in this buildingand contains the necessary voltmeters, ammeters, rheostats, etc., formeasuring the electrical heat supplied to the plate and switches, aWheatstone bridge and potentiometer for measuring the temperaturesregistered by the resistance thermometers and thermocouples in thecalorimeter building. The calorimeter building is a brick building 33 ft. square and con-tains, centrally located, an outer calorimeter room of corkboard con-struction, 20 ft. by 20 ft. by 10 ft. high. This room is fitted with 550 l}i in. brine coils distributed over three sides of the room. The brineflow can be regulated by means of a circulating pump in the generatingplant, to hold the temperature within a variation of a few test box formerly used in th
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