| 摘要 |
A method of performance model cross-mapping in a refrigeration circuit containing at least one compressor and an expansion valve, the method comprising: measuring one or more circuit parameter values of the refrigeration circuit, calculating a discharge line temperature, T pm , with a first performance model as a function of at least one of the one or more measured circuit parameter values and comparing the calculated discharge line temperature, T pm , to a measured discharge line temperature, T meas , from the refrigeration circuit to obtain a first differential value, ”T, calculating a first flow, M pm , with the first performance model as a function of at least one of the one or more measured circuit parameter values, calculating a second flow, M evm , through the expansion valve with a second performance model for the expansion valve as a function of at least one of the at least one or more measured circuit parameter values, comparing the first flow, M pm , to the second flow, M evm , to obtain a second differential value, ”M, and evaluating the first differential value, ”T, and the second differential value, ”M as well as a corresponding apparatus. |
