387-适用于冷链运输的半导体制冷箱制冷性能研究.pdfVIP

适用于冷链运输的半导体制冷箱制冷性能 研究 * 邱兰兰，王瑜 ，刘金祥，张译文 （南京工业大学城市建设学院） 摘 要：为提高半导体制冷箱的制冷效率，本论文对目前的半导体冰箱进行改装，对 TEC1-12706 型及 TEC1-12712 型半导体制冷片工作性能进行实验研究。运用 FLUENT 软件对 制冷空间内的温度分布进行了数值模拟。研究结果表明，半导体制冷性能是受多个因素共同 影响的，导冷风扇的风速为 3m/s，TED 冷端温度为-14℃时，箱体内温度在相同时间内降温 越快。在 1h 时间内，半导体制冷片工作时间越长，箱体内温度越低。仿真结果与试验结果 具有一致性，说明运用 FLUENT 软件模拟半导体制冷箱在空间内的温度变化可为半导体制冷 箱的优化提供技术支持。 关键词：半导体制冷箱 水冷散热 冷端温度 数值模拟 实验验证 ABSTRACT: In order to improve the refrigerating efficiency of the semiconductor refrigeration box, the current semiconductor refrigerator modification was modified and the the working performances of the TEC1-12706 type and TEC1-12712 type semiconductor refrigeration piece were compared by experiment. Meanwhile, the temperature distribution in refrigeration space was numerically simulated by using FLUENT software. The results show that the cooling performance of the semiconductor is influenced by several factors. During the same time, the decreasing rate inside the box becomes the largest under the operating condition that the air temperature of the cooling fan is 3m / s and the temperature of the cold junction of the TED is -14 ℃. In 1h time, the longer the working time of the cooling piece, the lower the temperature inside the box. The simulation results meet the exoperiment results well that applying FLUENT software to simulate the temperature change of the semiconductor refrigeration box in the space can provide technical support for the development of the semiconductor system. KEYWORDS:Semiconductor refrigeration box; water cooling method; cold side temperature; numerical simualtion; experiment 1 引言 随着科学技术的发展，人们对冷藏、冷冻技术的要求也不断提高。随着冷链技术的发展， 从冷库到用户这段距离需要一个合适的载体，而半导体制冷箱恰好能满足这一需求。本文设 计一种使用半导体制冷片作为冷源，热端应用冰水冷却的半导体制冷箱，该制冷箱制冷量大， 制冷效果好且能达到深冷的效果；可应用于短途物流运输，特别适合储存生鲜肉类、水果和 蔬菜，也适合储存从冷库拿出的肉制品。 在全球抵制氟利昂物质以及半导体材料的发展的大背景下，出现了一种新型的绿色环保 的制冷方式—半导体制冷。半导体制冷(热电制冷或者叫作温差电制冷)，是 20 世纪 50 年 代基于帕尔贴效应发展起来的一门新兴的固体制冷技术