NIST Standard Reference Database 49 CYCLE_D: NIST Vapor Compression Cycle Design Program Version 5.1

Published

June 23, 2016

Author(s)

Piotr A. Domanski, J S. Brown, Eric W. Lemmon

Abstract

CYCLE_D simulates vapor compression refrigeration cycles that use single-compound refrigerants or refrigerant blends. The model can simulate a basic subcritical or transcritical refrigeration cycle, both with or without a liquid-line/suction-line heat exchanger. In addition, the model can simulate a subcritical two-stage economizer cycle, a subcritical three- stage economizer cycle, and a subcritical two-stage compression cycle with intercooling. CYCLE_D includes 70 single-compound refrigerants and 97 predefined blends. Single-compound fluids can be combined to form blends of up to five components. Computationally, the program is fully compatible with the NIST Reference Fluid Thermodynamic and Transport Properties - REFPROP, Version 9.1.

Citation

Natl Std. Ref. Data Series (NIST NSRDS) - NSRDS 49

Report Number

NSRDS 49

NIST Pub Series

Natl Std. Ref. Data Series (NIST NSRDS)

Pub Type

NIST Pubs

Download Paper

https://doi.org/10.6028/NIST.NSRDS.49

Keywords

air conditioning, refrigerant, thermodynamic cycle, vapor compression

Citation

Domanski, P. , Brown, J. and Lemmon, E. (2016), NIST Standard Reference Database 49 CYCLE_D: NIST Vapor Compression Cycle Design Program Version 5.1, Natl Std. Ref. Data Series (NIST NSRDS), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.NSRDS.49 (Accessed October 14, 2025)