Environmental Impact: Technology of the 90’s
Environmental Impact: Technology of the 90’s (1992)-Technological change today in our industry is no longer driven by long hours of research and development, new equipment, or startling scientific breakthroughs. Rather the catalyst today in our current business plans is environmental impact, agency regulations and community awareness. The global concerns for development, handling, and regulation concerning today's refrigerant usage now forces new issues to be immediately addressed. Recently, Mr. Lloyd Nieman, Manager of Utilities Systems Engineering from Pennsylvania State University, attended an air conditioning seminar outlining the current environmental impact of CFC's and HCFC's on ozone and the proposed phase-out schedule. Mr. Nieman recognized he was responsible today to address impending phase-out schedules and evaluate an economical and well-engineered solution. During this talk, ammonia was discussed as a possible alternate refrigerant for air conditioning. His consultant was next tasked to thoroughly evaluate options. This paper will discuss the recent installation of two (2) 1000 TR R-22 water chiller packages designed for future conversion to ammonia refrigerant at Milton S. Hershey Medical Center of the Pennsylvania State University in Hershey, PA. The first part addresses the design, component selection and compatibility of R-717 and R-22 without need for major change when converting to ammonia. The second part addresses provisions undertaken by the consultant in building design to accommodate mandated codes, thus allowing future refrigerant change from R-22 to R-717.
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