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Proceedings of Symposium on Energy Engineering in the 21<sup>st</sup> Century (SEE2000) Volume I-IV

ISBN:
1-56700-132-7 (Print)

GENERAL MODEL OF ANALYZING THE THERMAL PERFORMANCE OF LATENT HEAT THERMAL ENERGY STORAGE SYSTEMS WITH VARIOUS PCM CAPSULES

Yanbing Kang
Department of Thermal Engineering, Tsinghua University, Beijing, 100084, P.R.China

Yinping Zhang
Department of Building Science, Tsinghua University, Beijing 100084, China; Beijing Key Laboratory of Indoor Air Quality Evaluation and Control, Beijing 100084, China

Yi Jiang
Department of Thermal engineering, Tsinghua University, Haidian District, Beijing 100084, China

Yingxin Zhu
Department of Thermal Engineering, Tsinghua University, Beijing, 100084, P.R.China

Аннотация

The present study describes and classifies latent heat thermal energy storage (LHTES) systems according to their structural characteristics. A general model is developed for analyzing the thermal characteristics of the various typical LHTES systems to simulate thermal characteristics such as instantaneous heat transfer rate, instantaneous thermal storage capacity, etc. of the various typical LHTES systems. The model is verified using experimental data in the literature. An illustrative example is undertaken to analyze the thermal performance of various LHTES systems. The general model can be used to select and optimize the system structure and to simulate the thermal behavior of various typical LHTES systems.