Method primarily for performance control at heat pumps or refrigerating installations and arrangement for carrying out the method
First Claim
1. A method of primarily testing and performance control of heat pumps, refrigerating installations or corresponding systems, in which system thermal energy from at least one heat source is supplied to an energy-carrying medium such as a refrigerant, which circulates in the system and is advanced therein by at least one compressor and caused to pass through at least one condenser where thermal energy is emitted and exchanged to an energy-carrying medium such as a thermal sink, where the method includes the steps of determining actual values in the form of real performance of such parameters as thermal output and so-called coefficient of performance, against the background of measurements, and automatically and substantially continuously comparing said real performance values to nominal, ideal values representing corresponding expected performance values, characterized by the steps of determining said expected performance values, such as thermal output or refrigerating output (Q1,f) and coefficient of thermal performance COP1) or coefficient of refrigerating performance (ε
- f), automatically and substantially continuously based on actual operating conditions, which are substantially continuously determined by means of measurements.
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Abstract
A method of primarily testing and performance controlling heat pumps, refrigerating installations or corresponding systems, at which system thermal energy from at least one heat source (K) is supplied to an energy-carrying medium (1), a refrigerant, which circulates in the system and is advanced therein by at least one, preferably electrically driven compressor (2) and is caused to pass through at least one condenser (VVX) where thermal energy is emitted and exchanged to a thermal energy carrying medium, a thermal sink, where the control comprises the determining of real performance, such as thermal output (Q1) and so-called coefficient of performance (COP) against the background of measurements. The method is especially characterized in that performance, such as thermal output (Q1,f) or refrigerating output (Q1,f) and coefficient of thermal performance (COPf) or coefficient of refrigerating performance (εf), expected against the background of actual operation conditions is determined preferably automatically and continuously and compared automatically to corresponding real performance (Q1, COP, ε) based on measurements. The invention also relates to an arrangement for carrying out the method.
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Citations
22 Claims
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1. A method of primarily testing and performance control of heat pumps, refrigerating installations or corresponding systems, in which system thermal energy from at least one heat source is supplied to an energy-carrying medium such as a refrigerant, which circulates in the system and is advanced therein by at least one compressor and caused to pass through at least one condenser where thermal energy is emitted and exchanged to an energy-carrying medium such as a thermal sink, where the method includes the steps of determining actual values in the form of real performance of such parameters as thermal output and so-called coefficient of performance, against the background of measurements, and automatically and substantially continuously comparing said real performance values to nominal, ideal values representing corresponding expected performance values, characterized by the steps of determining said expected performance values, such as thermal output or refrigerating output (Q1,f) and coefficient of thermal performance COP1) or coefficient of refrigerating performance (ε
- f), automatically and substantially continuously based on actual operating conditions, which are substantially continuously determined by means of measurements.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An arrangement for primarily testing and performance control at heat pumps or refrigerating installations, where the system comprises an energy-carrying medium such as a refrigerant, which circulates in the system and is intended to be advanced in the system by at least one compressor and at least one evaporator, at which thermal energy from a heat source is intended to be transferred to said energy-carrying medium, and at least one condenser, at which thermal energy is intended to be emitted by said energy-carrying medium to a second thermal energy carrying medium such as a thermal sink, the system including means (3-11,15) for automatically determining the actual operating conditions in the form of measurement results and for automatically determining measurement results for determining actual values in the form of real performance, such as thermal output (Q1,f) or refrigerating output (Q1,f) and so-called coefficient of thermal performance (COPf) or coefficient of refrigerating performance (ε
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f), on the basis of said measurement results, means for automatically and substantially continuously comparing said actual values and nominal, ideal values in the form of corresponding expected performance;
characterized by means for automatically and continuously determining said expected performance on the basis of said measurement results for said actual operating conditions. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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f), on the basis of said measurement results, means for automatically and substantially continuously comparing said actual values and nominal, ideal values in the form of corresponding expected performance;
Specification