摘要
按我国1997年新颁布的国家及行业标准,保温结构外表面放热系数不是定值。在此条件下,推导了两个临界热绝缘直径的新计算式,可分别用于自然对流及强制对流散热。
According to the new published state and industrical standards, two new equations for critical diameheat transfer coeffident of insulation based on the variant external heat transfer coefficient of insulation structure are obtainde. One is used for natural convection and another one is used for forced convection.
出处
《节能》
1999年第8期7-8,共2页
Energy Conservation
关键词
临界热绝缘直径
保温设计
放热系数
管道
Critical thermal insulation diameter, Heat insulation, Heat transfer cofficient