通过RSM和MATLAB模型优化COP,基于由太阳能光伏驱动的热电单元驱动的小型冰箱
Amal E M Elnaggar1, Soliman Sharaf2, Zeinab S Abedel Rehim3
1National Research Centre, Mechanical Engineering Department, Engineering and Renewable Energy Research Institute, Giza, Egypt. habiba_oahsc@yahoo.com.
Scientific reports
|October 1, 2024
概括
这项研究展示了一台太阳能热电冰箱,实现了高效率和低能耗的可持续冷却. 太阳能足以在春季和秋季降温至20°C,夏季降温至15°C.
科学领域:
- 可持续能源解决方案 可持续能源解决方案
- 热力学和制冷技术的发展
背景情况:
- 全球日益增长的能源需求和环境问题需要可持续的替代方案.
- 传统能源的使用导致污染,推动了对环保解决方案的需求.
- 热电冷却 (TEC) 提供了一个有前途的固态制冷技术.
研究的目的:
- 调查太阳能热电冰箱的性能和可行性.
- 评估能源消耗,冷却效率和离网应用的整体系统可行性.
- 为了优化冰箱的控制系统,在不同的太阳条件下实现最大的冷却效率.
主要方法:
- 设计了一台由光伏 (PV) 系统供电的多用途热电冰箱.
- 实现了一个控制单元来调整基于实时温度反的操作模式.
- 对不同季节的能源消耗和冷却性能进行实验分析.
- 开发了一个MATLAB Simulink模型,用于设计优化和PV与TEC的集成.
- 使用响应表面方法 (RSM) 来确定最佳性能系数 (COP).
主要成果:
- 太阳辐射足以在夏季降温至15°C,在春季/秋季降温至20°C.
- 平均冷却能耗因目标温度和季节而异.
- "快速而不是生态"模式提供了快速冷却与最小的能源消耗 (<1小时).
- "Eco"模式是最佳的连续运行,保持20°C±0.1°C.
- 通过模拟和实验验证,最佳COP达到71.089%.
结论:
- 太阳能热电冰箱是一种可行的,高效的可持续冷却解决方案.
- 开发的控制系统有效地根据环境条件优化性能.
- 通过建模和RSM支持的PV-TEC集成,提高了系统效率并缩短了设计时间.
- 这项技术对离网和环保冷却需求具有重大潜力.
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