Application research of comprehensive evaluation based on the theory of unascertainty measure

Comprehensive evaluation based on unascertainty measure in equipment operation has guiding significance. The unascertainty theory model was briefly introduced. This comprehensive method is able to help us select optimized scheme which was obtained by analyzing and handling experimental data. In the evaluation system, such parameters chosen as air temperature, power, the amount of heat recovery, supplying hot water temperature, COP(coefficient of performance), EER_e×c(energy efficiency ratio) were most importance comprehensive index, and each one was given different weight. Through this indexes and weight, a relatively complete matrix measure system could be established by experts. According to measured data, the conclusion as follows, series model was the optimal scheme among the four. Unascertainty approach was an effective evaluation theory applied in engineering project.