Experimental Investigation and Numerical Validation on the Energy-Saving Performance of A passive Phase Change Material Floor for A Real Scale Building

Jinming Shi 1

Xinyu Huang 1

Huichuan Guo 2

Xiaodong Shan 2

Zhilong Xu 1

Xiaona Zhao 1

Zhili Sun 1, Email

Waseem Aftab 1

Chong Qu 1

Ruimin Yao 1, Email

Ruqiang Zou 1, 3, Email

College of Engineering, Peking University, Beijing 100871, China

ENN Science and Technology Development Co. Ltd., Huaxiang Road, Economic and Technological Development Zone, Langfang, Hebei, 065001, China

Institute of Clean Energy, Peking University, Beijing 100871, China

Abstract

Phase change material (PCM ) can store heat at a constant temperature, which is beneficial to reduce building energy consumption . Herein , we fabricated a PCM board that can store 98-102 J/g heat at 26 °C. The PCM boards were paved as the floor in the real scale office t o reduce power for temperature regulation, which led to the reduced energy consumption of 18.8% and 19.7% in winter and summer, respectively. A numerical model is validated by experimental data to evaluate long term performance. The experiment and simulation results both demonstrate the high performance PCM floor for effective reduc tion in electricity consumption of heating and cooling.

Experimental Investigation and Numerical Validation on the Energy-Saving Performance of A passive Phase Change Material Floor for A Real Scale Building