The total installation capacity of large air-cooling units during the"10th-5-year-plan"is 4 600 MW,and to"11th-5-year-plan"will be 33 600 MW.

It is an open problem to evaluate chiller units.

The method was investigated about Backpropagation(BP) artificial neural network(ANN) application to chiller units faults detection and diagnosis(FDD).

Strict requirements must be met during the installation and commissioning program for the large-scale chiller units since it has multitudinous components and complicated pipelines with high-pressure vessels.

Refrigeration unit heat interchanger corrosion and prevention;

The smaller lithium bromide solar absorption refrigeration unit is exploited as the main breach of domestic solar energy air-conditioning systems,and the smaller solar energy air-conditioning system could be commercially produced.

This text introduces the basic principle of the fuzzy control, and in refrigeration control system of cold storage system of application, adopts the fuzzy calculating way to carry on the control that makes the refrigeration unit circulate the set number in that system, and makes system more intelligent.

Development and application of a chiller unit fault detection and diagnosis tool with Excel database;

Feasibility analysis of oil engine driven chiller units;