Problems And Countermeasures Of Building Solar Energy Utilization System In Cold District Of North China

With the raise of world population and the impelling of industrialization, humanbeings have been consumed more and more energy on production and lives. Thisbehavior brings about the world energy crisis and global environment deterioration.According to statistics, about30%of total energy consumption is consumed bybuildings. For reducing energy consumption, helping relieve energy crisis andprotecting the weak ecological environment, we must take actions on building energyreduction. There are two kinds of methods on building energy reduction. The firstmethod is "reduction", that is to say, we must do our best to cut down the energydesire by buildings. The second method is "addition", that is to say, we shouldincrease the use of clean energy and renewable energy. The main way of "addition" iscombining buildings and solar energy; it can decrease large amounts of tradition fuelby buildings.In cold district of North China, it has high population，large amounts of the existingbuildings and new buildings，and high consumption of energy. In this district, there isrich solar energy. If buildings can take full advantage of solar energy to heating,refrigerating and supplying power, it will cut down great amounts of the energyconsumption by buildings, reduce the air pollution. However, the design of buildingsolar energy utilization systems in this district has a variety of problems, so thepopularization and application of the system can not put into execution in large scale.There exist big problems both in integration of buildings with solar heating systemand in utilization ratio of solar energy.Firstly, this thesis introduced the building solar energy utilization systems which canapply in cold district of North China, and illustrated its components, work theories,applicable range and main design points detailedly. Secondly, according to studyingdocuments and interviewing in practise, this thesis summarized several problems inthe design of building solar energy utilization systems in cold district of North Chinaon current. Finally, this thesis analyzed the cause of these problems deeply and putforward the corresponding solutions.