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NIST Standard Reference Database 49CYCLE_D: NIST Vapor Compression Cycle Design Program: Version 5.0Rate our Products and Services If you are having problems with the Online Purchase or Fax/Mail Order Link.
Effective immediately, there will be a minimum $30.00 shipping charge for all international shipments of databases via UPS International. Customer will be responsible for their own duties, tax, and VAT. Contact 301 975 2200 or data@nist.gov if you have questions. CYCLE_Dsimulates vapor compression refrigeration cycles that use single-compound refrigerants or refrigerant blends. The model can simulate a basic subcritical or transcritical refrigeration cycle, both with or without a liquid-line/suction-line heat exchanger. In addition, the model can simulate a subcritical two-stage economizer cycle, a subcritical three-stage economizer cycle, and a subcritical two-stage compression cycle with intercooling. CYCLE_Dincludes 62 single-compound refrigerants and 66 predefined blends. Single-compound fluids can be combined to form blends of up to five components. Computationally, the program is fully compatible with the NIST Reference Fluid Thermodynamic and Transport Properties Program - REFPROP, Version 9.0.The basic subcritical or transcritical system simulated by CYCLE_D consists of a compressor, a discharge line, a condenser for the subcritical cycle (a gas cooler for the transcritical cycle), an expansion device, an evaporator, a compressor suction line, and an optional liquid-line/suction-line heat exchanger. The other subcritical cycles may contain a second compressor, and one or two economizers or an intercooler (but do not include the liquid-line/suction-line heat exchanger). The user of the program has to specify the refrigerant and provide input data for the above hardware components, except the expansion device, which is modeled as being isenthalpic. The user can also specify the power requirements of the indoor fan, outdoor fan, and control unit of the system. Please click here to view the PDF version of Users' Guide. System Requirements: Personal computer capable of running MS-WindowsTM 98, 2000, NT, and XP operating systems; hard disk with 8.0 MB available space. The screen resolution should be set to 800 x 600 or higher to view images in their entirety. If you are having problems with the Online Purchase or Fax/Mail Order Link. Special multiple copy pricing available. Call for details. Effective immediately, there will be a minimum $30.00 shipping charge for all international shipments of databases via UPS International. Customer will be responsible for their own duties, tax, and VAT. Contact 301 975 2200 or data@nist.gov if you have questions. For more information please contact: Standard Reference Data Program
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The scientific contact for the database is: Piotr A. Domanski
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Keywords: air conditioning; alternative refrigerant; ammonia; chemical engineering; vapor compression cycle; compressor; cooling equipment; equation of state; mechanical engineering; refrigerants; refrigeration. |