This article summarizes the features of application of variable refrigerant air condi- tioning system in modern house and the problems to be noticed during designing through actual examples of engineering design, and analyzes the advantages and disadvantages of this system through the actual engineering.

The diversity of variable refrigerant flow systems (‘VRF’,‘VRV’or‘Multi-systems’)– systems with one outdoor unit and several indoor units - commercially available is increasing every year, due to its efficient operating and improving thermal comfort of indoor environment.

In order to improve the NGL recovery rate for some condensate gas fields, which had high pressure gas source and there was no differential pressure for utilization, this paper put forward a cryogen refrigeration-oil absorption combination process to recover NGL on the basis of cold oil absorption theory.

Analysis on Energy Saving of Variable Refrigerant Volume Air Conditioning System;

Nowadays the Variable Refrigerant Volume air conditioning system has gained more and more attentions.