Case Study of Chiller Selection for the Retrofit of a Large Building Cooling System (LB-17-C009)

This paper describes the chiller selection design and procurement process for a building thermal management system. The design procedures described in this paper are based on those carried out during an energy efficiency engineering internship in a local Los Angeles company and thus serving as an example of real world training. This paper presents the results of a case study to replace chillers that are approaching the end of their useful life. This case study is an example of how engineering interns are exposed to the various ASHRAE Standards. The retrofit project was carried out according to specifications and drawing of the existing obsolete equipment and adhering to Standard 90.1 “Minimum Requirements for Chillers” and the ASHRAE “Chiller Life Expectancy” guidelines used to govern chiller selection and installation. Results for COP lift versus load and chiller load versus system load are presented in the paper.