DIN EN 15026-2007 建筑物构件和组件的温湿性能.用数值模拟评估水分传递

标准号：DIN EN 15026-2007
中文标准名称：建筑物构件和组件的温湿性能.用数值模拟评估水分传递
英文标准名称：Hygrothermal performance of building components and building elements - Assessment of moisture transfer by numerical simulation; German version EN 15026:2007
标准类型：P31
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：P31
国际标准分类号：91.120.01
引用标准：EN 12664;EN 12667;EN 12939;EN ISO 7345;prEN ISO 9346-2005;prEN ISO 10456;EN ISO 12571;EN ISO 12572;prEN ISO 15927-3
适用范围：This standard specifies the equations to be used in a simulation method for calculating the non steady transferof heat and moisture through building structures.It also provides a benchmark example intended to be used for validating a simulation method claimingconformity with this standard, together with the allowed tolerances.The equations in this standard take account of the following storage and one-dimensional transportphenomena: • heat storage in dry building materials and absorbed water; • heat transport by moisture-dependent thermal conduction; • latent heat transfer by vapour diffusion; • moisture storage by vapour sorption and capillary forces; • moisture transport by vapour diffusion; • moisture transport by liquid transport (surface diffusion and capillary flow).The equations described in this standard account for the following climatic variables: • internal and external temperature; • internal and external humidity; • solar and Iongwave radiation; • precipitation (normal and driving rain); • wind speed and direction.The hygrothermal equations described in this standard shall not be applied in cases where: • convection takes place through holes and cracks; • two-dimensional effects play an important part (e.g. rising damp, conditions around thermal bridges, effect of gravitational forces); • hydraulic, osmotic, electrophoretic forces are present; • daily mean temperatures in the component exceed 50 ℃.