Analyses of scientific nature for building energy efficiency theory and practice

Energy efficiency in buildings is a world problem, but in China it is under developed and begins very late, so research on energy efficiency theory in buildings in China is a pressed problem. The main contents of this paper are as follows: Based on different concept of the building energy efficiency (BEE), this paper put forward a new definition for BEE and emphasized the character of the social activity with building energy consumption process. The new definition embodies the characters of subject, object, and sense of principle and target of today BEE, which is useful to establish the foundation of the theory of knowledge. From the view of sciences of human settlements, branch of learning, scientific nature and engineering, this paper inquires into the problems and straits around to BEE. In order to improve the energy efficiency theory, to produce more suitable environment of human settlements as well, we should establish the systems theory, human and culture view, technology theory and regional view. To accelerate the process of research and development of energy efficiency in buildings in China, this paper conducted a theoretical research with the building environment, energy utilization and human development. The key to establish firmly building theory of energy efficiency is how to exploit the local natural conditions and stick to the requirements for the harmony of human being with environment; this paper sets up the preliminary frame system in the end.