Designing Industrial Refrigeration Systems for Full Vacuum •
Designing Industrial Refrigeration Systems for Full Vacuum • Considerations (2021)- Considerations around modes of test and operation that place ammonia refrigeration systems in a vacuum are discussed. A literature review of IIAR publications and general industry recommendations regarding design of pressure vessels and systems for evacuation and operation is presented. Results are presented for ASME B&PVC calculations for a range of typical pressure vessels constructed from A516 carbon steel showing that full vacuum should not be applied to vessels that exceed a specified length to diameter ratio (L/D), unless the vessel nameplate indicates it has been designed for full vacuum.
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