Carbon dioxide is a safe, economic and environmentally sustainable refrigerant which can
be used in heat pump and refrigeration systems. Research into the performance and …

Heat pump (HP) is one of the most energy efficient tools for address heating and possibly
cooling needs in buildings. Growing environmental concerns over conventional HP …

Since the fixed ejector cannot adjust the optimum high-side pressure, the adjustable ejector
is designed and built based on a transcritical CO2 heat pump system model results. The …

This work thoroughly analyses the developments in dynamic modelling for vapor
compression refrigeration (VCR)/heat pump (HP) systems described in the open literature. In …

With the increase of mineral mining depth, the technologies of constructing heat exchanger
in stopes to exploit geothermal resources from deep mines have received great attention …

The experimental system for the transcritical CO2 residential air-conditioning with an internal
heat exchanger was built and the effects of working conditions on the system coefficient of …

A review of the research carried out during past decade on flow of different refrigerants
through adiabatic and diabatic capillary tubes of different geometries viz. straight and coiled …

As one of the natural refrigerants, CO 2 is a potential substitute for synthesized refrigerants
with favorable environmental properties. In order to improve the performance of the CO 2 …

Thermal hazards in deep mines can be mined synergistically with the deposit as associated
geothermal energy resources. Backfill heat exchangers (BFHEs) as a combination of mine …

The effect of suction line on the evaporator performance with the using of R-134a has been
investigated experimentally. Three types of suction lines (lateral, concentric, coil) have been …