Centrifugal chiller market is developing rapidly

and its negative impacts on the environment in the life cycle are also increasingly concerned. In order to identify the main stages and the key influence factors of the environment impact of the whole life cycle of the centrifugal chiller

and provide the basis for the optimization design of the product

this study contributed a life cycle assessment (LCA) model and analyzed life cycle environmental assessment by life cycle impact analysis model of CML 2002

which included the environmental impacts of full life cycle

raw material acquisition phase

manufacture phase

use phase

transportation phase

recycling and reused phase. The sensitivity analysis was also provided. The results indicate that life-cycle environmental impacts are mainly in the climate change and the acidification

while exerting little change on the impacts of stratospheric ozone depletion

eutrophication and depletion of abiotic resources etc. Based on the sensitivity analysis

the refrigerant type

energy efficiency and using-time of water chiller are identified as the key driving forces for environment impacts of centrifugal chiller.