Title:
冷凍システムの最適化方法と装置
Document Type and Number:
Japanese Patent JP4691736
Kind Code:
B2
Abstract:
A refrigeration system comprising a compressor for compressing a refrigerant, a condenser for condensing refrigerant to a liquid, an evaporator for evaporating liquid refrigerant from the condenser to a gas, an inner control loop for optimizing a supply of liquid refrigerant to the evaporator, and an outer control loop for optimizing a level of refrigerant in the evaporator, said outer control loop defining a supply rate for said inner control loop based on an optimization including measurement of evaporator performance, and said inner control loop optimizing liquid refrigerant supply based on said defined supply rate. Independent variables, such as proportion of oil in refrigerant, amount of refrigerant, contaminants, non-condensibles, scale and other deposits on heat transfer surfaces, may be estimated or measured. A model of the system and/or a thermodynamic model approximating the system, for example derived from temperature and pressure gages, as well as power computations or measurements, is employed to determine or estimate the effect on efficiency of deviance from an optimal state. Various methods are provided for returning the system to an optimal state, and for calculating a cost-effectiveness of employing such processes.
Inventors:
Kevin Zugibe
Rear's papper
Rear's papper
Application Number:
JP2005511749A
Publication Date:
June 01, 2011
Filing Date:
December 09, 2003
Export Citation:
Assignee:
Hudson Technologies, Inc.
Kevin Zugibe
Rear's papper
Kevin Zugibe
Rear's papper
International Classes:
F25B43/02; F25B1/00; F25B43/00; F25B49/02; F25B25/00
Domestic Patent References:
| JP62200153A | ||||
| JP8233380A | ||||
| JP6193951A | ||||
| JP11501114A | ||||
| JP10068554A | ||||
| JP7160663A | ||||
| JP7218032A | ||||
| JP2002333220A | ||||
| JP2000512726A |
Attorney, Agent or Firm:
Takayoshi Kusumoto
Ken Masuda
Takanobu Nakaetsu
Ken Masuda
Takanobu Nakaetsu