Study on off-grid performance and economic viability of photovoltaic energy storage refrigeration systems

IF 3.5 2区 工程技术 Q1 ENGINEERING, MECHANICAL
Yali Guo 郭亚丽 , Tao Zhang 张涛 , Huadong Zhou , Shengqiang Shen 沈胜强 , Minle Bao 鲍民乐 , Hongyu Bao 鲍宏宇 , Liang Wang 王亮 , Shaoguan Sun 孙绍官 , Fei Li 李飞 , Hongbao Wang 王洪宝
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Abstract

With the rapid advancement of photovoltaic and energy storage technologies, photovoltaic energy storage refrigerator systems have gained significant attention as an innovative energy solution. This paper designs and constructs an off-grid photovoltaic power generation energy storage refrigerator system, and evaluates its economic viability in practical environments. By measuring indoor temperature, refrigerator internal temperature, irradiance, and daily power generation, the paper analyzes system operating parameters such as refrigerator cooling rate and power supply mode, and studies the system's refrigeration performance, off-grid operation capability, and factors affecting daily power generation. Utilizing economic indicators such as benefit-cost ratio, levelized cost of electricity, investment dynamic payback process, net present value, and internal rate of return, the economic viability of the system is assessed. Results indicate that the system meets refrigeration performance requirements, maintaining a uniform temperature distribution and extended off-grid operation capability. Daily power generation is influenced by weather conditions, seasons, and all electrical loads in the system. In the Dalian region of China, the system demonstrates good economic viability, enabling investment recovery and profitability in a relatively short period. This system has broad market prospects in areas with abundant solar resources or high demand for refrigerator usage.
光伏储能制冷系统的离网性能和经济可行性研究
随着光伏和储能技术的飞速发展,光伏储能冰箱系统作为一种创新的能源解决方案备受关注。本文设计并建造了一个离网光伏发电储能冰箱系统,并评估了其在实际环境中的经济可行性。通过测量室内温度、冰箱内部温度、辐照度和日发电量,本文分析了冰箱制冷速率和供电模式等系统运行参数,研究了系统的制冷性能、离网运行能力和影响日发电量的因素。利用效益成本比、平准化电力成本、投资动态回收过程、净现值和内部收益率等经济指标,评估了系统的经济可行性。结果表明,该系统符合制冷性能要求,能保持均匀的温度分布和扩展离网运行能力。每日发电量受天气条件、季节和系统中所有电力负载的影响。在中国大连地区,该系统具有良好的经济可行性,能够在较短时间内收回投资并实现盈利。该系统在太阳能资源丰富或冰箱使用需求量大的地区具有广阔的市场前景。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.30
自引率
12.80%
发文量
363
审稿时长
3.7 months
期刊介绍: The International Journal of Refrigeration is published for the International Institute of Refrigeration (IIR) by Elsevier. It is essential reading for all those wishing to keep abreast of research and industrial news in refrigeration, air conditioning and associated fields. This is particularly important in these times of rapid introduction of alternative refrigerants and the emergence of new technology. The journal has published special issues on alternative refrigerants and novel topics in the field of boiling, condensation, heat pumps, food refrigeration, carbon dioxide, ammonia, hydrocarbons, magnetic refrigeration at room temperature, sorptive cooling, phase change materials and slurries, ejector technology, compressors, and solar cooling. As well as original research papers the International Journal of Refrigeration also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of discussion and controversy. Other features include forthcoming events, conference reports and book reviews. Papers are published in either English or French with the IIR news section in both languages.
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