THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Dongsheng Huang

,

Yin Zhang

,

Yanhong Zheng

EVALUATION OF THERMAL PERFORMANCE OF AIR SOURCE HEAT PUMP HEATING SYSTEM BASED ON ELECTRICITY EQUIVALENT

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.
KEYWORDS
Electricity equivalent, Coefficient of energy quality, ASHP, Energy quality, Energy-saving evaluation
PAPER SUBMITTED: 2021-07-12
PAPER REVISED: 2021-10-18
PAPER ACCEPTED: 2022-01-06
PUBLISHED ONLINE: 2022-02-05
DOI REFERENCE: https://doi.org/10.2298/TSCI210712006H
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 5, PAGES [4207 - 4216]
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Evaluation of thermal performance of air source heat pump heating system based on electricity equivalent

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence