Set point optimization in vapor compression cycles

Details Set point optimization in vapor compression cycles Set point optimization in vapor compression cycles

1996-05-30

1998-04-07

Tanner, Harry B.

Refrigeration

Automatic control

Refrigeration producer

62183, 62205, 622284, F25B 4902

Patent

active

057351341

ABSTRACT:
A vapor compression system with set point optimization generates a set of thermodynamic operating parameters such that the system operates with optimum energy efficiency. Based on environmental conditions such as indoor and outdoor temperature as well as thermal load, the set of parameters for steady-state set point is generated. The system also monitors actual system properties in real-time and provides them as feedback to the set point computation module. Based on these actual real-time measurements, a new steady-state set point can be generated to enable the system to continue operating at maximum coefficient of performance upon change in environmental or thermal load requirements.

REFERENCES:
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patent: 4966012 (1990-10-01), Iida
patent: 5170935 (1992-12-01), Federspiel et al.
He et al., "Multivariable Feedback Design for Regulating Vapor Compression Cycles," Proceedings of the American Control Conference, pp. 4661-4335 (1995).
He et al., "Modeling of Vapor Compression Cycles for Advanced Controls in HVAC Systems," Proceedings of the American Control Conference, pp. 3664-3668 (1995).
Rice, C.K., "Benchmark Performance Analysis of an ECM-Modulated Air-to-Air Heat Pump with a Reciprocating Compressor," ASHRAE Transactions: Research,98(1):430-449 (1992).

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