Document 37QVbVVmVq9e44vNna9oL6J7D

AUTUMN. POWERFAX . 1 9 3 3 VACUUM REFRIGERATION DEVELOPMENT N the Spring 1933 Issue of I POWERFAX, refrigerationby flash evaporation under vac uum was discussed by Mr. L. M. Fomcrook. Mention was made of the widespread interest in this method of cooling with its at tractive possibilities in cost-saving operation, and its simplicity as compared with other methods. An experimental vacuum refrig eration unit installed in Elliott Company's Jeannette Works has been used in developing a new and improved unit. The improvements sought have to do with economy of operation, better control meth ods, and more compact construc tion. The experimental unit, shown here, does not appear very com pact because it was particularly designed to facilitate a wide va riety of experimentation without difficultly maintained devices, regard for general appearance.. without sacrificing flexibility of The experimental unit has a ca operation. The booster ejectors, pacity of approximately IS tons being identical in design and ca and employs three booster ejec pacity, are interchangeable and, tors of equal capacity. It has been therefore, may be economically operated over a wide range of in maintained. The test floor scaf let and discharge water tempera folding unfortunately obstructs a tures and at various ratings. It is clear view of the flash chamber designed to accomplish the rated which is of a new but extremely duty over a wide range of refrig simple design. erated water temperatures, with a The performance of this experi remarkably small variation in ca mental unit has exceeded expecta pacity. The design is such as to tions and has confirmed our belief eliminate the use of isolating gate in the relative improvement in valves and other expensive and economy made possible by the {Above}--A 60-ton vacuum refrigeration unit especially arranged tofit into avail able space conditions. {Left}--Test Floor view of experimental lJ-ton vacuum refrigeration unit in El liott Company's Jeannette Works. special features of the design em ployed. A refrigeration unit of the type illustrated may be used for cooling water in connection with air-con ditioning applications or for cool ing process liquors. The. Elliott Company has sold refrigeration equipment employing the steam jet principle capable of producing more than 3000 tons of refrigera tion. Also illustrated is a view of a 60-ton vacuum refrigeration unit especially arranged to fit intospace, available. In the actual installa tion, the two booster ejectors were installed in a vertical position, but for photographing purposes in the shop, the latter position was used for the sake of convenience. it ir ir ^ CRIMDEBN00000169