Method of operation and regulation of a vapour compression system
AssigneeSinvent AS
InventorsKåre Aflekt, Armin Hafner, Arne Jakobsen, Petter Nekså, Jostein Pettersen, Håvard Rekstad, Geir Skaugen, Trond Andresen, Espen Tøndell, Munan Elgsæther
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Abstract
The present invention involves a compression refrigeration system including a compressor, a heat rejector, expansion means and a heat absorber connected in a closed circulation circuit that may operate with supercritical high-side pressure. An apparatus and method are provided to optimize energy efficiency.
Claims20
A compression refrigeration system comprising:
- a closed circulation circuit comprising a compressor, a heat rejector, an expansion device, and a heat absorber, said closed circulation circuit being operable to circulate a refrigerant and pressurize the refrigerant to a high-side pressure, the high-side pressure being supercritical;
- and
- a controller operable to estimate a parameter value reflecting energy consumption to determine an optimum high-side pressure by perturbation of the high-side pressure during operation of said compression refrigeration system;
- wherein said compression refrigeration system operates at the optimum high-side pressure after the optimum high-side pressure has been determined.
A method of operating a compression refrigeration system including a closed circulation circuit comprising a compressor, a heat rejector, an expansion device, and a heat absorber, the method comprising:
- operating the compression refrigeration system by circulating a refrigerant through the closed circulation circuit and pressurizing the refrigerant to a high-side pressure, the high-side pressure being supercritical;
- estimating a parameter value reflecting energy consumption to determine an optimum high-side pressure by perturbation of the high-side pressure during operation of the compression refrigeration system;
- and
- operating the compression refrigeration system at the optimum high-side pressure after the optimum high-side pressure has been determined.
Dependencies are inferred from the claim text.