TY - RPRT TI - A study of a water-to-water heat pump using hydrocarbon and hydrofluorocarbon zeotropic mixtures AU - Payne, W Vance II AU - Domanski, Piotr A AU - Muller, Jaroslaw PY - 1999 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 6330 DO - 10.6028/NIST.IR.6330 ER -