BS EN ISO 13790-2008 建筑物能量特性.空间加热和冷却用能量的计算

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标准号:BS EN ISO 13790-2008
中文标准名称:建筑物能量特性.空间加热和冷却用能量的计算
英文标准名称:Energy performance of buildings - Calculation of energy use for space heating and cooling
标准类型:P31
发布日期:2008/12/31 12:00:00
实施日期:2008/12/31 12:00:00
中国标准分类号:P31
国际标准分类号:91.120.10;91.140.10
引用标准:ISO 6946;ISO 7345;ISO 10077-1;ISO 13370-2007;ISO 13786-2007;ISO 13789-2007;ISO 15927-4;EN 15217
适用范围:This International Standard gives calculation methods for assessment of the annual energy use for spaceheating and cooling of a residential or a non-residential building, or a part of it, referred to as “the building”.This method includes the calculation of:a) the heat transfer by transmission and ventilation of the building zone when heated or cooled to constantinternal temperature;b) the contribution of internal and solar heat gains to the building heat balance;c) the annual energy needs for heating and cooling, to maintain the specified set-point temperatures in thebuilding – latent heat not included;d) the annual energy use for heating and cooling of the building, using input from the relevant systemstandards referred to in this International Standard and specified in Annex A.The building can have several zones with different set-point temperatures, and can have intermittent heatingand cooling.The calculation interval is either one month or one hour. For residential buildings, the calculation can also beperformed on the basis of the heating and/or cooling season.This International Standard also gives an alternative simple hourly method, using hourly user schedules (suchas temperature set-points, ventilation modes or operation schedules of movable solar shading).Procedures are given for the use of more detailed simulation methods to ensure compatibility and consistencybetween the application and results of the different types of method. This International Standard provides, forinstance, common rules for the boundary conditions and physical input data, irrespective of the calculationapproach chosen.Special attention has been given to the suitability of this International Standard for use within the context ofnational or regional building regulations. This includes the calculation of an energy performance rating of abuilding, on the basis of standardized conditions, for an energy performance certificate. The result can havelegal implications, in particular when it is used to judge compliance with minimum energy performance levels,which can, for instance, be required to obtain a building permit. For such applications, it is important that thecalculation procedures be unambiguous, repeatable and verifiable. A special situation is the calculation of theenergy performance in the case of old existing buildings, if gathering the full required input would be toolabour-intensive for the purpose, relative to the cost-effectiveness of gathering the input. In this case, it isimportant that the calculation procedures provide the right balance between accuracy and data collectioncosts. To accommodate the application for these and other situations, this International Standard offersdifferent choices. It is up to national bodies whether or not to choose a specific option for mandatory use, e.g.depending on the region in the country, the type of building and its use, and on the purpose of theassessment.

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