优化太阳能干燥效率:PCM和IR对能量和能量性能的影响
Mehdi Moradi1, Reza Raeesi1, Dariush Zare1
1Biosystems Engineering Department, School of Agriculture, Shiraz University, Shiraz, Iran.
PloS one
|June 17, 2025
概括
这项研究优化了使用混合太阳能干燥机与相变材料 (PCM) 和红外辐射 (IR) 的土豆干燥. 使用PCM和IR在60°C达到最佳效果,大大减少了干燥时间和能源消耗.
科学领域:
- 农业工程 农业工程
- 食品科学与技术 食品科学与技术
- 可再生能源系统可再生能源系统
背景情况:
- 太阳能干燥为食品保存提供了一个可持续的替代方案.
- 在太阳能干燥中优化能源效率和产品质量仍然是一个挑战.
- 集成相变材料 (PCM) 和红外辐射 (IR) 的混合系统显示出增强性能的希望.
研究的目的:
- 用混合太阳能干燥机研究土豆的干燥动力学,能源消耗和颜色质量.
- 评估相变材料 (PCM) 和红外辐射 (IR) 对土豆干燥效率的影响.
- 为了确定混合太阳能干燥土豆的最佳操作条件.
主要方法:
- 在40°C,50°C和60°C的土豆上进行了干燥实验.
- 使用了一台混合太阳能干燥机,其中包含一个复合抛物线缩器 (CPC) 收集器,PCM和IR.
- 进行了能量和运动分析,以及干燥时间和颜色变化 (ΔE) 评估.
主要成果:
- 阶段变换材料 (PCM) 平均减少了5.3%的干燥时间,并提高了能量/能量效率.
- 红外辐射 (IR) 仅仅减少了40%的干燥时间,加速了水分的去除.
- 使用PCM和IR的60°C的最佳条件产生了最低的特定能耗 (SEC) 和最小的颜色降解.
结论:
- 将PCM和IR集成到混合太阳能干燥机中,可以显著提高干燥效率,并减少土豆的能源消耗.
- 使用PCM和IR的60°C设置被认为是土豆干燥,平衡速度,能源使用和质量的最佳配置.
- 对微波和超声波辅助干燥等先进干燥技术的进一步研究可以进一步优化混合太阳能系统.
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