Set point optimization in vapor compression cycles
First Claim
1. A method of controlling a vapor compression cycle in a vapor compression system comprising:
- (a) generating a set of parameters which define an operating condition for the vapor compression system;
(b) operating the vapor compression system in accordance with the set of parameters;
(c) while the system operates, receiving a real-time measurement of at least one of the parameters;
(d) using the real-time measurement, calculating the real-time coefficient of performance of the vapor compression system;
(e) adjusting the at least one parameter; and
(f) repetitively performing steps (c) through (e) as required to maximize the real-time coefficient of performance.
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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.
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Citations
30 Claims
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1. A method of controlling a vapor compression cycle in a vapor compression system comprising:
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(a) generating a set of parameters which define an operating condition for the vapor compression system; (b) operating the vapor compression system in accordance with the set of parameters; (c) while the system operates, receiving a real-time measurement of at least one of the parameters; (d) using the real-time measurement, calculating the real-time coefficient of performance of the vapor compression system; (e) adjusting the at least one parameter; and (f) repetitively performing steps (c) through (e) as required to maximize the real-time coefficient of performance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A vapor compression system comprising:
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means for generating a set of parameters which define an operating condition for the vapor compression system; means for generating a real-time measurement of at least one of the parameters as the vapor compression system operates; and means for repetitively calculating the real-time coefficient of performance of the vapor compression system using the real-time measurement of the at least one parameter and adjusting the at least one parameter to maximize the real-time coefficient of performance. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification