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首页> 外文期刊>Journal of food process engineering >Mathematical design and performance investigation of evaporator water cooled storage-cum-mobile thermoelectric refrigerator for preservation of fruits and vegetables
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Mathematical design and performance investigation of evaporator water cooled storage-cum-mobile thermoelectric refrigerator for preservation of fruits and vegetables

机译：蒸发器水冷储存暨移动热电冰箱的数学设计与性能调查保存水果和蔬菜

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摘要

A storage-cum-mobile thermoelectric refrigeration system was designed for passive, active, and total load of refrigeration on the basis of thermo-physical properties of polyurethane sheet, heat generated by axial fan, and internal heat of commodities stored for refrigeration. A prototype of mobile thermoelectric refrigeration system of capacity 100 L (40 kg per batch) was designed and developed for maintaining the temperature of 15 +/- 2 degrees C and relative humidity of 80 +/- 5%. The developed system of dimension (45 x 50 x 50 length x width x height), composed of four thermoelectric modules, liquid cooled evaporator, axial fan, diaphragm water pump, fogger, and water tank. The system was operated by 12 V DC power source. Results obtained from experimental performance evaluation indicated that 20.8 degrees C temperature reduction was achieved in 210 min under no load operation, whereas, 23.6 degrees C temperature reduction was obtained in 360 min when the system was loaded with 30 kg of bitter gourd. The temperature was reduced at the rate of 9.65 degrees C/h till temperature of 20 degrees C was attained which latter reduced to 2.23 degrees C/h under no load condition, whereas, rate of temperature reduction was 7.44 degrees C/h till attainment of 20 degrees C and then reduced to 1.43 degrees C/h under loading condition. The techno-economic feasibility of the system exhibited COP 0.85 which was significantly higher than those reported by several scientists in the range of 0.15-0.50. Developed refrigeration system can be effectively utilized as an eco-friendly technology for small scale cold storage of fruits and vegetables with causing detrimental effect to environment.Practical Applications Developed thermoelectric refrigeration technology is climate friendly without generating any global warming potential and can be commercially used for small scale cold storage of fruits and vegetables to enhance the shelf life of produce. A developed refrigeration system is helpful for fruits and vegetable vendors to maintain the quality of commodity during transportation to minimize the decay of food and fetch good value to the commodity.
机译：基于聚氨酯片的热物理性质，设计了一种存储 - 暨移动热电制冷系统，用于基于聚氨酯片的热物理性质，由轴向风扇产生的热量，以及用于制冷的商品的内部热量的热物理性质。设计和开发了移动热电制冷系统的移动热电制冷系统的原型，用于保持15 +/- 2℃和80 +/- 5％的温度。开发系统的尺寸（45×50×50长度x宽度X高），由四个热电模块，液冷蒸发器，轴流风扇，隔膜水泵，雾化器和水箱组成。该系统由12 V直流电源运行。从实验性能评价获得的结果表明，在没有负载操作的情况下在210分钟内降低20.8摄氏度，而360分钟，当系统装满30千克苦葫芦时，在360分钟内获得23.6℃。以9.65℃/ h的速率降低温度，达到20摄氏度的温度，后者在无负荷条件下减少到2.23摄氏度，而降低速度为7.44摄氏度，直至达到达到在加载条件下，20摄氏度减少到1.43摄氏度。该系统的技术经济可行性表现出COP 0.85，其显着高于几个科学家报告的COP 0.85，范围为0.15-0.50。开发的制冷系统可以有效地利用作为生态友好型技术的水果和蔬菜的小型冷库，对环境有害效果。练习效果开发了热电制冷技术在不产生任何全球变暖潜力的情况下，热电制冷技术具有气氛友好，可商业地使用小型冷藏水果和蔬菜，以提高生产的保质期。开发的制冷系统有助于水果和蔬菜供应商在运输过程中保持商品的质量，以最大限度地减少食物的衰减，并对商品取得良好价值。

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  • 来源
    《Journal of food process engineering》 |2021年第8期|e13770.1-e13770.14|共14页
  • 作者

    Chavan Prasad; Sidhu Gagandeep Kaur; Alam Mohammed Shafiq; Kumar Mahesh;

  • 作者单位

    Punjab Agr Univ Dept Proc & Food Engn Ludhiana 141004 Punjab India;

    Punjab Agr Univ Dept Proc & Food Engn Ludhiana 141004 Punjab India;

    Punjab Agr Univ Dept Proc & Food Engn Ludhiana 141004 Punjab India;

    Punjab Agr Univ Dept Proc & Food Engn Ludhiana 141004 Punjab India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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