半导体制冷床垫睡眠热平衡系统模拟与性能分析

通过营造局部非均匀空调环境，可以实现人体睡眠热舒适与节能的双重目的。本文提出并搭建了基于半导体制冷床垫的睡眠热平衡系统，通过半导体制冷与人体热负荷耦合传热模型，对半导体制冷床垫系统的热特性进行了参数化分析、优化设计与节能性评价。结果表明：通过增加制冷床垫的半导体数量，减小电流输入，可以扩大室内允许的舒适空气温度范围，同时降低结露风险。半导体制冷床垫系统的节能率与室内温度、半导体工作电流以及房间面积直接相关。通过对比参考工况（空调设定26 ℃）、工况1（空调设定27 ℃）与工况2（空调设定28 ℃），可知工况1与工况2可实现最高10.26%与23.37%的节能率。

Simulation and Performance Analysis on Sleep Thermal Equilibrium of Thermoelectric Cooling Mattress

The dual purpose of ensuring sleep thermal comfort and saving energy can be achieved by developing a non-uniform sleeping environment. A thermoelectric-based cooling mattress system for sleep thermal comfort is proposed and constructed. Using the coupling heat-transfer model of thermoelectric-based cooling and the sleep thermal load, the thermal characteristics of the thermoelectric-based cooling mattress system are parametrically analyzed. The system design is optimized, and the energy-saving potential is evaluated. The results show that the range of neutral temperatures can be expanded while reducing the risk of condensation by increasing the number of semiconductors in the mattress and decreasing the current input. The energy-saving ratio of a thermoelectric-based cooling mattress is directly related to the indoor temperature, working current, and room area. The energy-saving ratio under Condition1 (setting temperature of 27 °C) and Condition2 (setting temperature of 28 °C) can reach up to 10.26% and 23.37%, respectively, compared with the Reference Condition (setting temperature of 26 °C).