The Design Scheme and Efficiency Analysis on Energy Conversation of Existing Residential Buildings in Changchun City

Abstract

Nowadays, world energy source has become a lifeline of national economic development and national security. Although China is abundant in energy sources, the per capita are far lower than the world average level, making energy situation serious. Energy consumptions conclude industrial energy consumption , transportation energy consumption and Building energy consumption. With the rapid development of economy in our country, the growth of the building energy consumption has been increasing obviously. Energy tension and the resulting environmental problems are the top issues our country facing with. Now existing building areas are about 42 billion square meters in China, 90% existing buildings of which are built in the last eighty and ninety century. [2] And those old buildings have features of simple retaining structure design, big doors and windows gaps, poor air tightness, residential thermal environment, building insulation and thermal insulation, low level of building energy efficiency, and less energy saving measures as well. Therefore, whether the energy saving renovation of existing residential buildings will be carried out is the determination of whether the high efficient use of resources and energy sources and sustainable development road can move forward. 1.Introduction Chinese existing buildings energy conservation is pushed by the south to north direction. [1] Changchun city of Jilin province is located in the North-East, belongs to cold region. The existing building energy-saving renovation work in Changchun city is an important part of construction energy conservation work in China. Because heating energy consumption accounts for the proportion of building energy consumption is as high as 50% ~ 60% in winter, building energy conservation potential is tremendous.[4] As residents higher requirements for the improvement of indoor thermal environment and relevant policies and regulations on energy conservation, the study of existing residential buildings energy-saving renovation will have practical significance. This paper mainly introduces the design scheme of energy saving conservation of existing residential buildings in Changchun city, and analyzes the effect after energy saving renovation of existing residential building energy-saving buildings. 2. The Design scheme and effect of energy saving transformation The design ways contribute to fulfilling energy conservation for existing residential buildings in Changchun city, as the flow-process diagram A1, such as the existing peripheral residential building insulation, heating pipe network, the indoor heating system, roof structure for energy saving and facade decoration and so on, which can reduce building energy consumption, improve the environment, indoor thermal insulation waterproof effect, beautify the appearance of the building and enhance housing security system. 2nd International Conference on Management Science and Industrial Engineering (MSIE 2013) © 2013. The authors Published by Atlantis Press 647