Prolonged use of environment unfriendly refrigerants in high-grade energy systems has
resulted in increased greenhouse gas emissions and ozone layer depletion. This has …

Abstract Heat Pumps (HPs) market have performed a progressive growth in the last years
and the predictions still point to an increase greater than 200% until 2030. Besides the fact …

Refrigeration system of supermarket applications significantly contributes to direct and
indirect global warming. The aim of this paper is to present a methodology of assessing such …

In this paper, the first open-source generalized simulation framework for positive
displacement machines (PDSim) reported in literature is employed to model different …

Supermarkets' high refrigeration and air-conditioning energy use increases their carbon
footprint. Thus, this sector must be encouraged to innovate to increase efficiency, reduce …

Refrigerant leakage is a frequently-occurring fault that may have serious influence on the
performance and environment, and is quite hard to be identified especially at an early stage …

The journal-bearing system is crucial for the reliability of refrigerant compressors that
operate under high-ambient-pressure environments. The pressure changes rapidly, which …

This paper investigates the two-phase leakage of the flank gap in rotary compressors by
using the coupled models of compressible Reynolds equation and refrigerant-oil pair …

The rolling piston type rotary compressors consume huge amount of energy in buildings due
to the large quantity of applications in household as well as commercial air-conditioners and …

This paper presents a comparative analysis on leakage losses of a rolling piston type rotary
compressor with refrigerants of R290, R22 and R410a. In particular, the difference of …