Affiliation:
1. College of Architecture and Environment, Sichuan University, Chengdu, China
Abstract
Thermal performance assessment and optimization for energy conversion and utilization systems are of high significance in building energy efficiency. Generally speaking, the evaluation of actual thermodynamic system performance is mainly based on the First law of thermodynamics, with emphasis on the quantity of energy consumption, while ignoring the energy quality. Thus, it results in a one-sided evaluation in the analysis of system energy saving. In this paper, the electricity equivalent is used to analyse and evaluate the air source heat pump heating system under the different working conditions. Moreover, the dynamic thermal performances of three typical space heating devices (radiator, fan coil, and radiant floor) are investigated and compared by weighing both energy quantity and quality. The results show that the COP of radiator, fan coil, and radiant floor are 3.00, 3.82, and 4.76, and coefficient of energy quality are 48.32%, 51.43%, and 50.57%, respectively. However, the robustness of its thermal performance is lower than that of radiator and fan coil. This work can provide reference for energy systems assessment and guidance for practical design of building heating systems.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Reference20 articles.
1. Center, T. U. B. E. R., 2020 Annual Report on China Building Energy Efficiency, China Building Industry Press, Beijing, 2020
2. Jiang, Y. J. E. S., China Building Energy Conservation Stratagems Study, Strategic Study of Chinese Academy of Engineering, 13 (2011), 6, pp. 30-38
3. Zhang, Y., et al., Thermodynamic Optimization of Coupled Heat Work Conversion and Heat Transfer Energy Systems by Applying Inverse Problem and Variation Method, Heat Transfer Research, 48 (2017), 18, pp. 1637-1649
4. Zhang, Y., et al., From Heat Exchanger to Heat Adaptor: Concept, Analysis and Application, Applied Energy, 115 (2014), Feb., pp. 272-279
5. Zhang, Y., et al., Application of Concept of Heat Adaptor: Determining an Ideal Central Heating System Using Industrial Waste Heat, Applied Thermal Engineering, 111 (2017), Jan., pp. 1387-1393
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