| 요약2 |
Great concern on the building energy saving and reinforced governmental energy policy have resulted in the revision of building energy regulation. To meet the energy saving requirement, buildings should be insulated much more thicker or super-insulation should be applied. In these respects, this study presents a new insulating method using low emissive and high reflective Low-E insulation through the comparative analysis of thermal performance of existing resistive insulation and Low-E insulation. To analyze those thermal performances, A unit of an apartment building was selected to calculate its thermal load depending on the alternative insulations. TRNSYS program was used for the simulation, and the results of the simulation are as follows. It was indicated that Low-E insulation could achieve the most excellent insulating performance with the thinnest structure. In case of reinforced super-insulation, the existing resistive insulation should be used as thick as 250mm, but Low-E insulation could meet the same performance with half thickness of 120mm. Thanks to the reduced thickness of insulation, Low-E insulation has the advantage in applying to high-rise buildings and it is believed to gather the interests of construction companies which have difficulty in solving the strick insulating problem. Based on the results of the simulation, in-situ tests on the thermal performance and workability will be followed to verify the excellence of Low-E insulation. |