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A Research on the Technique of Energy Saving for the Existing Buildings

Abstract


「Energy saving and Carbon reduction」has become the issue of attention over the world:The Copenhagen conference in 2009, the participation countries proposed a promise to reduce the carbon emission. In additional, the COP16 climate conference in 2010,the organization will plan to control the temperature that has gotten approximately 1.5-2 degrees Celsius. Meanwhile, the international conference in Finland, Toshiharu IKAGA proposed the practical strategy about CO2 emission with viewpoint of life cycle cost. Nevertheless, facing the over 90 percent of the existing building market, which the Japanese government will take the「renovation of the existing buildings」and「usable value of the existing houses」into the significant developmental policies from the environmental actions plan 2008 to 2012.At the same time the Japanese government will expect to adopt the energy-saving design strategies in existing buildings so that it would correspond to the goal of carbon reduction in the whole world.
In order to practice the living pattern of environmental and economical compatibility. Nowadays various countries all devote to issues of energy saving and carbon reduction that improve people’s life quality. And because the interconnection of the construction of industry, ICT, production of building materials and cultural creativity affect directly sense of people’s life. Consequently, it is important to practice the energy saving and carbon reduction and happy living . It is also one of the operational project to archive the sustainable development in various countries.
According to the Taiwan’s Bureau of Energy statistical data, in terms of daily energy consumption and the energy consumption of building materials, the buildings in Taiwan account for 27% of the total CO2 emission. Furthermore, the Executive Yuan in conference of Carbon Reduction indicate that the floor area of existing buildings account for over 97% in Taiwan and the consumption of phase of operational management account for over 90% of building life cycle. However, to the vast existing buildings management in building market, the government must boost the strategy and technology in「improvement of energy saving of existing
building」,therefore, it will be able to give consideration to 「enhancement of energy use」and「guaranty of users’ health」
Aiming at low-carbon green buildings, the Love Taiwan 12 projects were brought up in Taiwan. Furthermore, governance guidelines, such as Green Building toward Eco-city Promotion Program as well as Energy-Saving and Carbon-Reduction Action Plan, and the conclusions of the national energy conference, Low-carbon Homeland, have been employed to develop low-carbon technologies and to thus make progress toward low-carbon green buildings and carbon-reduced eco-cities. Additionally, in 2008 the government passed the「renewable energy development regulation」and 「energy development law」, further, they built the energy consumption form of「high efficiency」,「high value」,「low emissions」and 「low dependence」. However, to the 97%of the building market, in recent years, the government devotes to promote and support the existing buildings improvement project so that it has promoted the quality of performance and efficiency of energy use in Taiwan. The types are subsidized as following:public and private offices, public and private schools and apartments.
Nevertheless, ISO 15686-5 has proposed: the operational phase is the longest and most consumes energy in building life cycle. So as to boost 97% of energy saving plan of existing building, promote citizens’ participation and estimate improved benefits. As a result, this study intends to establish the plans as following:
1. Collecting the domestic and foreign energy saving design and improvement of technology in green building.
2. Reviewing the energy saving technology of green building is suited to Taiwan.
3. Building the self-control table and assessable route take office ,apartment and school as an example to inspect its completeness and the feasibility.
This project comes to the immediate and long-term strategies.
For immediate strategies:
Synthesizing the issues of energy saving technology of existing buildings such as use of popularization provide to citizens, designers and the administration as an example.
For long-term strategies:
Collecting the domestic and foreign energy saving design and improvement of technology in green building.