Research on the Performance of Stirling Low-temperature Freezer with Low-temperature Phase Change Materials

Chen Jian; Chen Xi; Lei Yicheng; Zhang Tianrou; Shi Yunmei

doi:10.3969/j.issn.0253-4339.2023.02.144

您当前的位置：

首页 >

文章列表页 >

Research on the Performance of Stirling Low-temperature Freezer with Low-temperature Phase Change Materials

更新时间：2024-07-18

- Research on the Performance of Stirling Low-temperature Freezer with Low-temperature Phase Change Materials
- Journal of Refrigeration Vol. 44, Issue 2, (2023)
- 作者机构：
  
  上海理工大学能源与动力工程学院
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2023.02.144
  CLC：
- Published：2023
- 稿件说明：
移动端阅览
Chen Jian, Chen Xi, Lei Yicheng, et al. Research on the Performance of Stirling Low-temperature Freezer with Low-temperature Phase Change Materials[J]. Journal of refrigeration, 2023, 44(2).
DOI：

Chen Jian, Chen Xi, Lei Yicheng, et al. Research on the Performance of Stirling Low-temperature Freezer with Low-temperature Phase Change Materials[J]. Journal of refrigeration, 2023, 44(2). DOI： 10.3969/j.issn.0253-4339.2023.02.144.

摘要

生物制品的低温转运对便捷式低温冰箱的蓄冷功能提出了明显需求。本文通过实验研究斯特林低温蓄冷冰箱在停电时的温度变化，基于实验建立三维数值模型，进一步研究了侧摆布置的蓄冷板高度比对箱内空气升温和蓄冷剂相变的影响。实验结果表明：环境温度为20 ℃时，无蓄冷冰箱的中心温度由-86 ℃升至-70 ℃需0.26 h，而载有3.2 kg 蓄冷剂（EO-75）的蓄冷冰箱中心温度由-86 ℃升至-70 ℃的时间延长为5.33 h。模拟结果表明：侧摆布置的蓄冷板高度比具有重要影响，蓄冷板高度比由50%增至90%，箱内中心温度维持在-86~-70 ℃的时间由2.96 h延长至7.66 h，蓄冷剂的保冷效率由29.18%增至48.28%，故推荐蓄冷板高度比为90%。该研究结果可为低温冷链运输技术提供参考。

Abstract

The low-temperature transportation of biological products necessitates urgent demands for the cold storage function of portable low-temperature freezers. In this study

experimental tests were conducted to investigate the temperature changes in a Stirling low-temperature freezer with a low-temperature phase change material (PCM) during power failure. Based on the test results

a three-dimensional numerical model was developed to further analyze the effect of the height ratio of the side-swing arrangement of the cold plate on the air temperature in the freezer and the phase transition of the PCM. The experimental results showed that when the ambient temperature was 20 °C

the central temperature of the freezer without the PCM required 0.26 h to rise from -86°C to -70 °C

whereas the central temperature of the freezer loaded with 3.2 kg PCM (EO-75) required 5.33 h to rise from -86 °C to -70 °C. The simulation results showed that the height ratio of the side-swing arrangement of the cold plate had an important effect on the freezer temperature. When the height ratio of the cold plate increased from 50% to 90%

the time of keeping the central temperature at -86 °C to -70 °C was extended from 2.96 h to 7.66 h

and the cooling efficiency of the PCM increased from 29.18% to 48.28%. The height ratio of the cold plate should be 90%. The results of this study can be useful in the research on low-temperature cold chain transportation technology.

关键词

Keywords

references

Views

1055

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

The Application Research of Energy Storage on Copper Foam Phase-change Material in Blood Transportation Vehicle

Heat Storage and Discharge Characteristics of Flat Filling Phase Change Thermal Energy Storage Tank

Power Loss and Temperature Distribution Characteristics of a Linear Compressor Motor

Research Progress of Compression Heat Pump Coupled with Heat Storage of Phase Change Materials

Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints

Related Author

Liu Hanyi

Zhang Liang

Yang Yang

Cao Jiayuan

Wang Qun

Chen Xi

Yang Geng

Xiao Xin

Related Institution

Institute of Air Environment and Building Energy Conservation, College of Environmental Science and Engineering, Donghua University

Yunnan Provincial Rural Energy Engineering Key Laboratory

Institute of Refrigeration and Cryogenics, University of Shanghai for Science and Technology

National Virtual Simulation Experimental Teaching Center for Building EnergySchool of Environmental and Energy Engineering

Beijing University of Civil Engineering and Architecture

Address：10/F, Yindu Mansion, 67 Fucheng Road, Haidian Dist, Beijing, China Postal code：100142
Tel：010-68711412 Email：editor@car.org.cn
Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰