The invention provides a
building envelope decarburization design strategy giving consideration to load quality and personnel demand difference, according to the strategy, firstly, building air conditioner loads are graded according to cold and heat source temperatures needed for load
processing, the quality difference of the building air conditioner loads is determined, a targeted efficient
processing path is designed, and high-quality energy is reasonably distributed to be used. Then, a photo-thermal demand
database suitable for people of different
age groups is constructed, corresponding photo-thermal demands are matched according to the ages of building users, and constraint conditions of optimization design are defined; in the optimization process, the
enclosure structure is divided into a load blocking type and a load regulating type. The method comprises the following steps: firstly, optimizing a load blocking type
enclosure structure so as to reduce the number of building loads; on the basis, the
load regulation and control type
enclosure structure is optimized by combining the quality difference of indoor loads, low-quality energy sources such as natural
heat energy and natural cold energy are fully utilized to meet the indoor low-quality load requirement, and efficient gradient utilization of the energy sources is achieved. According to the
design strategy, load quality difference and photo-
thermal comfort are taken into consideration, the comfort of different
crowds is guaranteed, meanwhile, the
building energy efficiency is remarkably improved, and the
design strategy has important significance on
energy conservation and emission reduction.