1. R. Zylla, K. W. Tai, S. Devotta, F. A. Watson and F. A. Holland, Derived thermodynamic design data for heat pump systems operating on R22, J. Heat Energy Recovery, (In press).
2. Tables of thermodynamic properties of Arcton refrigerant R22. Imperial Chemical Industries Ltd, Mond Division, PO Box 13, The Heath, Runcorn, Cheshire WA7 4QF, U.K.