Study On The Design For Energy Conservation Of The Integrated Thermal Insulation Buildings Made Of Glazed Hollow Beads

Under the circumstance that global energy situation is becoming more severe and people’s pursuit of living comfort is becoming more higher, in order to implement the national building energy efficiency policies, improve building energy-saving effect and the living and working comfort, better breakthrough the bottleneck encountered in the process that residential building heating billing was implemented by household metering. The glass beads of integral insulation building came into being.Integral thermal insulation buildings are better than the exterior insulation both in aspects of energy-saving effect and living comfort. Since the integral insulation buildings are hexahedral insulation, which is different from the exterior insulation, its energy consumption calculation based on the room, need to consider the housing vacancy rate and the heat transfer through walls and floor between the heating households and the non-heating households. The existing energy efficiency standards mainly apply to exterior thermal insulation buildings, without considering the effect of the household walls, floors and other components of the heat transfer on energy consumption when implementing household metering. So it is necessary to make a further study on the method of the energy consumption calculation and the energy-saving design about this kind of building, to raise a design method of thermal insulating building, which meet the current65%energy conservation standards or higher energy requirements. So as to meet different energy-saving demands in different climate zone in our country, especially in cold and serve cold zone, in addition to provide the basis for the preparation of the related regulations of technology and to promote the healthy development of building energy efficiency.In view of this, this paper, based on the former research results, made the following research, and relative conclusions were drawn:(1) This paper used residential energy consumption simulation software DeST-h, took integral thermal insulation building with masonry struture with six-storey, for example, analyzed the impact of different heating division, the ratio of windows to wall and wall surface heat storage coefficient etc. on integral thermal insulation building energy consumption. The results show that:heating division had the biggest impact on building energy consumption, The maxmium difference was20.1W/m2in unit area heating when the same building was in different heating division.the ratio of windows to wall in east-west direction had smaller impact on building energy consumption, the ratio of windows to wall in suoth-north direction had much impact on building energy consumption, especially in serve cold zone; wall surface heat storage coefficient had smaller impact on building energy consumption, so we can ignore the faotor’s effect on energy consumptin in the course of energy efficient design.(2) According to existing residential building65%design standards in severe cold/cold zone and the calculation theory about heat transfer coefficient of the palisade structure, calculated the insulation layer thickness of the palisade structure. Integral thermal insulation buildings with different structure in different climate zones were taken as research object,calculated the energy consumption of the buildings with calculated above insulation layer thickness. The results showed that:In this thickness, heat consumption in per unit area of integral thermal insulation buildings in cord and serve cold zone amouted to70%-76%of standard heat consumption, far better than65%energy saving design standards. So the energy-saving design of this buildng system should be based on performance indicators.(3) With heat consumption indicators limits meeing65%energy saving standard for target, integral thermal insulation buildings with different structure in different climate zones were taken as research object, then through simulation calculation and theoretical analysis, the thermal performance limits of palisade structure of the integral thermal insulation building were calculated.(4) According to calculated palisade structure thermal performance limits when the building system up to65%energy efficiency standards, to build DeST-h Model. Take the cities with smallest and largest heating consumption of the heat index in severe cold/cold zone for exemple, then make a comparison of energy consumption. The results showed that:the energy consumption can basically satisfy the heat consumption indicators meeing current65%energy saving standard.which showed the feasibility and rationality of the thermal performance limits obtained in this study.(5) Based on the theoretical analysis and engineering simulation examination above, According to palisade structure thermal performance limits when the building system up to65%energy efficiency standards, provided the insulation layer thickness recommended list, which meet65%energy effciency standards and apply to the cold and severe cold C zone. In addition, took preliminary studies on energy-saving building structural measures, so as to provide theoretical basis for the related standards and regulations and provide reference for the design of energy saving.