急速冷冻箱制冷性能实验研究
TB61+1%TB657; 针对食品急速冷冻箱的制冷系统进行实验,研究其降温曲线及制冷性能.实验结果表明,目前的食品急速冷冻箱制冷系统在开始降温后,蒸发温度立刻降至接近最低蒸发温度,蒸发器进口温度和被冷冻水温度温差约为25℃,蒸发温度过低导致进入压缩机的制冷剂流量偏小,压缩机的实际功率只占额定功率的60％左右,系统的(炯)损主要发生在蒸发器内(约占41％),因此使蒸发温度与箱温匹配是提高急速冷冻箱降温速度的重要手段....
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| Published in | 制冷学报 Vol. 37; no. 4; pp. 27 - 32 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
广东省能源高效清洁利用重点实验室华南理工大学 广州510640
2016
华南理工大学电力学院 广州510640%华南理工大学电力学院 广州510640 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-4339 |
| DOI | 10.3969/j.issn.0253-4339.2016.04.027 |
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| Abstract | TB61+1%TB657; 针对食品急速冷冻箱的制冷系统进行实验,研究其降温曲线及制冷性能.实验结果表明,目前的食品急速冷冻箱制冷系统在开始降温后,蒸发温度立刻降至接近最低蒸发温度,蒸发器进口温度和被冷冻水温度温差约为25℃,蒸发温度过低导致进入压缩机的制冷剂流量偏小,压缩机的实际功率只占额定功率的60％左右,系统的(炯)损主要发生在蒸发器内(约占41％),因此使蒸发温度与箱温匹配是提高急速冷冻箱降温速度的重要手段. |
|---|---|
| AbstractList | 针对食品急速冷冻箱的制冷系统进行实验,研究其降温曲线及制冷性能。实验结果表明,目前的食品急速冷冻箱制冷系统在开始降温后,蒸发温度立刻降至接近最低蒸发温度,蒸发器进口温度和被冷冻水温度温差约为25℃,蒸发温度过低导致进入压缩机的制冷剂流量偏小,压缩机的实际功率只占额定功率的60%左右,系统的损主要发生在蒸发器内（约占41%）,因此使蒸发温度与箱温匹配是提高急速冷冻箱降温速度的重要手段。 TB61+1%TB657; 针对食品急速冷冻箱的制冷系统进行实验,研究其降温曲线及制冷性能.实验结果表明,目前的食品急速冷冻箱制冷系统在开始降温后,蒸发温度立刻降至接近最低蒸发温度,蒸发器进口温度和被冷冻水温度温差约为25℃,蒸发温度过低导致进入压缩机的制冷剂流量偏小,压缩机的实际功率只占额定功率的60％左右,系统的(炯)损主要发生在蒸发器内(约占41％),因此使蒸发温度与箱温匹配是提高急速冷冻箱降温速度的重要手段. |
| Author | 陈肖依 刘金平 许雄文 |
| AuthorAffiliation | 华南理工大学电力学院,广州510640 广东省能源高效清洁利用重点实验室华南理工大学,广州510640 |
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| Author_FL | Liu Jinping Chen Xiaoyi Xu Xiongwen |
| Author_FL_xml | – sequence: 1 fullname: Chen Xiaoyi – sequence: 2 fullname: Liu Jinping – sequence: 3 fullname: Xu Xiongwen |
| Author_xml | – sequence: 1 fullname: 陈肖依 刘金平 许雄文 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3969/j.issn.0253-4339.2016.04.027 |
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| Discipline | Engineering |
| DocumentTitleAlternate | Experimental Research on Refrigeration Performance of Quick Freezer |
| DocumentTitle_FL | Experimental Research on Refrigeration Performance of Quick Freezer |
| EndPage | 32 |
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| GrantInformation_xml | – fundername: 国家自然科学基金(51506057)资助项目.The project was supported by the National Natural Science Foundation of China (No.51506057).本文受广东省能源高效清洁利用重点实验室(华南理工大学)(2013A061401005)项目资助.The project was supported by South China University of Technology and Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization funderid: (2013A061401005) |
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| Issue | 4 |
| Keywords | quick freezer experimental research refrigeration performance 实验研究 急速冷冻箱 evaporating temperature 制冷性能 蒸发温度 |
| Language | Chinese |
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| Notes | 11-2182/TB quick freezer; refrigeration performance; evaporating temperature; experimental research The experiment of quick freezer＇s refrigeration system is carried out to study it＇s cooling curve and refrigeration performance. The experimental results show that： when the refrigeration system of the quick freezer begins to cool down, the evaporation temperature is dropped immediately to be close to the lowest evaporation temperature and the evaporator＇s inlet temperature has a difference with water＇s temperature about 25 ℃ ; the lower evaporating temperature leads to the smaller mass flow rate of refrigerant entering the compressor, and compressor＇s power accounts for only about 60% of the rated power; the exergy loss is about 41% in the evaporator, thus to make the evaporation temperature match with the indoor temperature of quick freezer is an important means to increase the freezer＇s cooling speed sharply. Chen Xiaoyi, Liu Jinping, Xu Xiongwen （1. School of Electric Power, South China University of Technolog |
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| PublicationTitle | 制冷学报 |
| PublicationTitleAlternate | Journal of Refrigeration |
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| Publisher | 广东省能源高效清洁利用重点实验室华南理工大学 广州510640 华南理工大学电力学院 广州510640%华南理工大学电力学院 广州510640 |
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| Snippet | 针对食品急速冷冻箱的制冷系统进行实验,研究其降温曲线及制冷性能。实验结果表明,目前的食品急速冷冻箱制冷系统在开始降温后,蒸发温度立刻降至接近最低蒸发温度,蒸发器进口... TB61+1%TB657; 针对食品急速冷冻箱的制冷系统进行实验,研究其降温曲线及制冷性能.实验结果表明,目前的食品急速冷冻箱制冷系统在开始降温后,蒸发温度立刻降至接近最低蒸发... |
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| SubjectTerms | 制冷性能 实验研究 急速冷冻箱 蒸发温度 |
| Title | 急速冷冻箱制冷性能实验研究 |
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