一种具有强化自然通风效果的太阳能空调房

STUDY ON A SOLAR HOUSE WITH ENHANCED NATURAL VENTILATION

提出一种依靠吸附制冷原理制冷 ,结合太阳能通风筒强化自然通风的太阳能空调房 ,其特点在于一方面可充分利用太阳能吸附集热器和太阳能通风筒集热面有效降低房间的太阳热负荷 ;另一方面利用吸附床吸附制冷过程释放大量吸附热的现象 ,用于强化夜间自然通风。该文针对房间的通风率、进风温度变化等进行了分析 ,结果表明 ,典型条件下 ,采用 2 .5m2 的太阳能通风筒集热面、5m2 的吸附制冷系统集热面 ,一间 2 0m2 的太阳房日间通风率可达 10 0kg/h ,夜间通风率则可进一步提高 30 %～ 4 0 %。和其它空调装置相结合 ,该太阳房可用作独立式住宅 ,粮仓等 。

A solar house with enhanced natural ventilation driven by solar chimney and adsorption cooling cavity has been proposed. The cooling load of the house could be reduced to a great extent, due to the configuration of solar adsorber and solar chimney on the roof; good ventilation could be ensured with the assistance of solar chimney during the day; the adsorption heat released in the process of adsorption cooling could be used to induce natural ventilation in the night. It was found that on a typical day, the solar house, comprising of a 2.5 m2 solar chimney, was able to create an air flow rate of more than 100 kg/h in a 20 m2 room. In addition, the ventilation rate at night was also increased by about 30-40% with the solar adsorption cooling cavity. It is believed that such a solar house, incorporated with other air conditioning systems if necessary, can create a comfortable indoor environment, and is energy efficient and environmental-friendly.