Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables
Experiments were performed over the steady running period of assembly cold storage, and the working and stopping time of the refrigerating unit was tested under different environmental temperatures. A calculation model for the working and stopping time and the working time coefficient were establish...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2018-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2018.01.121 |
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| _version_ | 1849705204775124992 |
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| author | Zhang Qiuyu Zang Runqing |
| author_facet | Zhang Qiuyu Zang Runqing |
| author_sort | Zhang Qiuyu |
| collection | DOAJ |
| description | Experiments were performed over the steady running period of assembly cold storage, and the working and stopping time of the refrigerating unit was tested under different environmental temperatures. A calculation model for the working and stopping time and the working time coefficient were established. MATLAB was used to calculate the working time coefficient of the assembly cold storage under different insulation thicknesses and different refrigeration units. The results show that the maximum working time error decreased from 11.6% to 2.78% after the mathematical model was revised, and the stopping time decreased from 7.91% to 1.46%. The maximum error between the calculated and experimental values of the working time coefficient was 3.47%, which indicates high precision. As the refrigerating capacity increased, the rate of decrease in the working time coefficient became smaller, and it was found to be appropriate to limit the refrigerant flow to 0.012 kg/s. Similarly, as the insulation thickness increased, the rate of decrease in the working time coefficient became smaller, and the insulation thickness was increased by 100 mm according to the working time of the cold storage. |
| format | Article |
| id | doaj-art-dae75bee74da4c09a620258aa458da55 |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2018-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-dae75bee74da4c09a620258aa458da552025-08-20T03:16:32ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392018-01-013966511669Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and VegetablesZhang QiuyuZang RunqingExperiments were performed over the steady running period of assembly cold storage, and the working and stopping time of the refrigerating unit was tested under different environmental temperatures. A calculation model for the working and stopping time and the working time coefficient were established. MATLAB was used to calculate the working time coefficient of the assembly cold storage under different insulation thicknesses and different refrigeration units. The results show that the maximum working time error decreased from 11.6% to 2.78% after the mathematical model was revised, and the stopping time decreased from 7.91% to 1.46%. The maximum error between the calculated and experimental values of the working time coefficient was 3.47%, which indicates high precision. As the refrigerating capacity increased, the rate of decrease in the working time coefficient became smaller, and it was found to be appropriate to limit the refrigerant flow to 0.012 kg/s. Similarly, as the insulation thickness increased, the rate of decrease in the working time coefficient became smaller, and the insulation thickness was increased by 100 mm according to the working time of the cold storage.http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2018.01.121assembly cold storageworking time coefficientenergy efficiencyworking timestopping time |
| spellingShingle | Zhang Qiuyu Zang Runqing Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables Zhileng xuebao assembly cold storage working time coefficient energy efficiency working time stopping time |
| title | Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables |
| title_full | Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables |
| title_fullStr | Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables |
| title_full_unstemmed | Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables |
| title_short | Analysis on Working Time Coefficient and Energy Efficiency Evaluation of Small Assembly Cold Storage for Fruit and Vegetables |
| title_sort | analysis on working time coefficient and energy efficiency evaluation of small assembly cold storage for fruit and vegetables |
| topic | assembly cold storage working time coefficient energy efficiency working time stopping time |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2018.01.121 |
| work_keys_str_mv | AT zhangqiuyu analysisonworkingtimecoefficientandenergyefficiencyevaluationofsmallassemblycoldstorageforfruitandvegetables AT zangrunqing analysisonworkingtimecoefficientandenergyefficiencyevaluationofsmallassemblycoldstorageforfruitandvegetables |