Growing concerns about the global warming impact of refrigerants used in HVAC&R equipment are driving development and evaluation of alternative refrigerants with lower global warming potentials (GWPs). The Air Conditioning, Heating, and Refrigeration Institute (AHRI) recently coordinated the Low-GWP Alternative Refrigerant Evaluation Program (AREP) in which commercial, university, and governmen...

The demand for electricity is growing rapidly along with economic development and increasing population. At present, its production mainly based on non-renewable sources, which has negative impacts the environment contributes to global warming. A large proportion of produced consumed by refrigeration equipment. Climate change progress civilisation are additionally cooling, consumption as a cons...

The chiller plays an important role for providing comfort environment. Once, the incipient faults are missed, they may develop to be fatal and further lead equipment damage casualties. Nevertheless, fault in running process of easily neglected noise. Moreover, variables have dynamic characteristics, each variable is correlated with other process, a certain interrelated at different times. To ta...