Method for decoupling indoor temperature field of building

Abstract

The invention provides a method for decoupling an indoor temperature field of a building. The method comprises the following steps: firstly, determining all indoor thermal factors of the building; determining an indoor flow field type, and respectively setting a plurality of representative flow fields according to different flow field types; calculating a representative flow field by applying convection-radiation coupling simulation; fixing a representative flow field, setting a single thermal factor, and calculating the temperature distribution of each thermal factor; calculating a CRI valueof a single thermal factor; according to a CRI definition formula, calculating and obtaining each sub-temperature field by utilizing the heat productivity or heat absorption capacity of the thermal factor; determining whether all representative flow fields are decoupled or not, wherein each total temperature field is the linear synthesis of all the corresponding sub temperature fields. According to the method, the potential force range of each thermal factor in the space is quantitatively evaluated, the influence of different thermal factors on the space temperature field is independently analyzed, the indoor temperature distribution is more effectively and quickly predicted, and the indoor local temperature environment can be efficiently and accurately regulated and controlled by independently regulating and controlling the strength of an indoor heat source or heat sink.

Description

technical field [0001] The invention relates to the technical field of simulation calculation of indoor temperature distribution in a building, in particular to a method for decoupling the indoor temperature field of a building. Background technique [0002] With the continuous development of social economy, more and more diverse indoor buildings are gradually increasing. With the continuous improvement of living standards, people have higher and higher requirements for the comfort of the living environment or working environment, followed by higher and higher requirements for the thermal design of indoor buildings. [0003] At present, in the thermal design of interior buildings, Computational fluid dynamics (CFD for short) is used as a numerical analysis tool, and the boundary conditions and initial conditions are obtained according to the load and design criteria. When doing building energy consumption simulation, it is generally assumed that the indoor air is uniformly ...

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Problems solved by technology

However, since the indoor temperature field is affected by many thermal factors, when any thermal factor changes, it needs to be re-simulated and calculated, so the CFD calculation load is very large

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