Calculation method of building energy saving rate based on human thermal adaptation model

Abstract

The invention discloses a calculation method of building energy-saving rate based on a human body thermal adaptation model. The steps of the method include: obtaining the annual outdoor meteorological data of the building to be built, calculating the daily average natural room temperature of the building, and drawing thermal energy according to the thermal adaptation model. Neutral temperature curve, calculate baseline energy consumption, calculate building energy consumption, calculate building energy saving rate, establish benchmark model and calculate energy saving rate of benchmark model, judge building energy saving rate and adjust building parameters. The present invention overcomes the defect that the indoor comfortable temperature involved in my country's current building energy-saving design standards is based on the PMV steady-state model, and the relatively narrow comfort zone of this model makes the architectural design fail to better improve the energy-saving rate of the building; and It overcomes the inability of the current calculation of building energy saving rate to accurately determine how much of a building's energy saving target is achieved through architectural design and how much is achieved through equipment, which can be used to guide the thermal design of buildings and enclosure structures.

Description

technical field [0001] The invention relates to the field of building energy saving, in particular to a calculation method for building energy saving rate based on a human body thermal adaptation model. Background technique [0002] At present, China's current building energy-saving calculation method is based on building energy-saving design standards for different climate zones and different building types, such as "Design Standards for Energy Conservation of Residential Buildings in Severely Cold and Cold Regions" (JGJ26), "Design Standards for Energy Conservation of Residential Buildings in Hot Summer and Cold Winter Regions" "(JGJ134), "Design Standards for Energy Conservation of Residential Buildings in Hot Summer and Warm Winter Areas" (JGJ75) and "Design Standards for Energy Conservation of Public Buildings" (GB50189), each standard uses the energy saving rate as the building energy saving target. Building energy efficiency rate refers to the ratio of the annual ener...

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Problems solved by technology

[0003] The indoor thermal environment standard based on the current building energy-saving calculation method in my country is the PMV model based on the results of artificial climate experiments. This energy-saving calculation method has certain limitations. The reasons are as follows: (1) The comfort temperature is based on the PMV steady-state model. The relatively narrow comfort zone of this model prevents the architectural design from improving the energy-saving rate of the building. The energy-saving control parameters of the two parts of the system are used to achieve the goal, and it is impossible to accurately determine how much of a building's energy-saving goal is achieved through architectural design

That is to say, in order to achieve the 65% energy-saving goal of a building, the architect may use equipment systems to achieve the goal. The result is a seemingly energy-saving building, but it is actually a high-energy building; The calculation of the energy saving rate is based on the benchmark building energy consumption. This benchmark energy consumption is only for the northern region of my country, without considering the energy consumption of buildings in other climate zones in my country at that time. The energy saving rate calculated on this basis is not very good. Measuring the energy efficiency of the building itself

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