Development and Validation of a Dynamic Vapor Compression Cycle Model
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Tarih
2021
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Heating, ventilation and air conditioning systems have widespread household and industrialapplications and play a leading role in the energy consumption of countries around the world. Byanalyzing the dynamic behavior of these systems, it is possible to make them operate more efficiently.In this study, the dynamic behavior of a vapor compression cycle is analyzed. The evaporator andcondenser are modeled with the finite-difference method and the expansion valve and compressorare modeled with static relationships. Gungor-Winterton and Travis et al. correlations are,respectively used as the evaporation and condensation correlations. The expansion valve opennessand compressor motor speed are selected as the input variables to the system. Another model withthe same design specifications is developed in the SimulationX environment to verify the proposedmodel. Both models are perturbed with the two input variables with varying values over constantintervals and the transient behavior of the system is investigated. The results showed that theoutcomes of the two models agree well with each other. The largest prediction difference is observedas 2x10-4 kg/sec. for the mass flow rates and 1.4 K for the heat exchangers inlet temperatures.
Açıklama
Anahtar Kelimeler
Kaynak
Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi
WoS Q Değeri
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Cilt
23
Sayı
69
