在我国,寒冷地区,特别是“三北”地区,采暖期长,采暖节能潜力极大,成为建筑节能的重点。对于夏季炎热地区、夏热冬冷地区以及工艺要求夏季供冷的场合,则由于同样单位前提下制冷比制热耗能和费钱更多,且近年来旅游宾馆、大商场、办公及商用建筑越来越多,加上 In China, cold areas, especially in the “Three North” area, have a long heating period, and have great potential for heating and energy saving, and have become the focus of building energy conservation. For summer hot regions, hot summer and cold winter regions, and processes where summer cooling is required, cooling and heat costs are more expensive and costly than under the same unit conditions, and travel hotels, shopping malls, offices, and commercial buildings have been used in recent years. More and more, plus