摘要
本文报道了研究夜空辐射对合一式太阳能热水系统夜间热损影响的试验方法和结果,并对减少由夜空辐射引起的热损失进行了初步讨论。试验表明:夜间把热水器对天空遮蔽,至少可以减小热损失达20～30％;遮蔽屏表面的反射率对遮蔽效果影响甚大。
The paper reports the experiments for researching the effect of sky radiation at night on heat losses of integral collector-storage (ICS) system with the results as well as preliminary discussion on reducing heat losses from sky rediation. The experiments show that sheilding the ICS system from sky at night could reduce its heat losses by 20-30% at least and the reflectivity of shield surface facing ICS system has obvious influence on shielding effect.
