【摘要】 精确的空间温度场调控是调整空调热舒适性的关键。为了探究室内空调制冷的温度分布规律，于环境模拟室中开展现场实验，结合风流场分布的仿真结果，得出室内圆柱柜机空调制冷温度场的时空演化特征。结果表明：高速冷气流下移是产生房间内温度分层现象的主要原因，即使在空调供风口温度分布上低下高的情况下，室内温度在空间上仍随着距地面高度的增加而上升。同一垂直面上的上下部温差最小仍可达5.60℃。随着降温时长的增加而室内温度逐渐降低，降温速率随着水平高度的增加而逐渐减弱，当降温60 min时，上层等距水平面温差可达3.04℃，而下层仅为0.42℃。此外，房间墙壁的温度分布及变化与空气域类似，天花板处温度最高且降温速率最慢。该研究结果可为空调气流组织优化设计提供理论支撑，指导相关企业研发新型节能高热舒适性空调。更多还原

【Abstract】 Precise control of the spatial temperature field is crucial for adjusting the thermal comfort of air conditioner. To investigate the temperature distribution patterns of indoor air conditioner cooling, on-site experiments were conducted in an environmental simulation chamber. By integrating the simulation results of the air flow field distribution, the spatiotemporal evolution characteristics of the cooling temperature field for a cylindrical air conditioner in a room were obtained. The results indicate that the downward movement of high-velocity cold air is the primary cause of the temperature stratification within the room. Even when the temperature distribution at the air vent of the air conditioner is lower at the bottom and higher at the top, the indoor temperature still increases with the increase in height from the ground. The minimum temperature difference between the upper and lower parts on the same vertical plane can still reach 5.60 ℃. As the cooling duration increases, the indoor temperature gradually decreases, and the cooling rate gradually weakens with the increase in horizontal height. After 60 minutes of cooling, the temperature difference on the upper equidistant horizontal plane can reach 3.04 ℃, while it is only 0.42 ℃ for the lower level. Moreover, the temperature distribution and its variation on the room walls resemble that of the air domain, with the highest temperature and the slowest cooling rate occurring at the ceiling. These findings can provide theoretical support for the optimization design of air conditioner airflow organization and guide related enterprises in developing new energy-efficient and high-thermal-comfort air conditioners.更多还原