围护结构热工性能权衡判断方法及简化形式探讨

摘要

围护结构热工性能权衡判断就是判定建筑热工设计节能是否达标,因此以负荷代替能耗作为判据则恰好与判定目的相当。建筑负荷主要与围护结构热工性能相关,而建筑能耗除此之外还与空调采暖系统有关。以负荷判定法代替能耗判定法,能够直接判定围护结构的总体热工性能是否符合节能设计要求,而且《公共建筑节能设计标准》附录B也更适用于负荷判定法。负荷判定法在建模、设定参数上均有大幅度的简化形式。%Building envelope trade-off option is to judge whether the energy efficiency of thermal design of envelope is up to standard,therefore it is equivalent to use building load as the criteria instead of energy consumption.Building load mainly is bound up with thermal performance of envelope,while building energy consumption is relate to air conditioning and heating system other than the thermal performance of envelope.In conclusion,it is much more directly to judge whether the overall thermal performance of envelope accords with design claim of energy efficiency by option based on building load in place of option based on energy consumption.What＇s more,the appendix B of the Design Standard for Energy Efficiency of Public Buildings is more suitable for the use of option based on building load.The Option based on building load possesses simplified forms by a big margin in establishing model and set up parameters.