Building thermal environment control modeling method based on physical properties

A technology of physical characteristics and modeling methods, applied in the field of building thermal environment control modeling, which can solve problems such as the influence of data volume and the lack of universality of control modeling methods.

Active Publication Date: 2016-12-07
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
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Problems solved by technology

[0004] In order to overcome the shortcomings or deficiencies of the control modeling method in the prior art, such as not being universal and easily affected by the amount of data, the purpose of the presen

Method used

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  • Building thermal environment control modeling method based on physical properties
  • Building thermal environment control modeling method based on physical properties
  • Building thermal environment control modeling method based on physical properties

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specific Embodiment

[0036] A specific example is as follows:

[0037] (1) Taking an experimental building with a length of 10m, a width of 4m, and a height of 3m as an example, the convective heat transfer coefficient of the building wall = 0.62J / m 2 S°C, air penetration La(n)=14.56m 3 / h, the average value of the transmittance of glass to direct solar radiation=0.7, the transmittance of glass to solar diffuse radiation=0.65, the average absorption rate of glass to solar direct radiation=0.13, the absorption rate of glass solar diffuse radiation= 0.1, the heat transfer resistance of the outer surface of the glass = 0.04m 2 ℃ / w, heat transfer resistance of glass inner surface = 0.13m 2 ℃ / w, full shading coefficient SC = 0.5, actual sunlight exposure area ratio = 0.32, window glass effective area coefficient = 0.7, window area F = 9.56m 2 .

[0038] (2) Taking a fan coil unit with copper fins as heat dissipation material as an example, the density of water = kg / m 3 , specific heat of water = 4...

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Abstract

The invention discloses a building thermal environment control modeling method based on physical properties. The building thermal environment control modeling method determines an hourly thermal environment model of a building through analyzing period outdoor air temperature, solar scattering direct radiation intensity, solar scattering radiation intensity, a wall body heat-storage-release pattern and indoor disturbance, establishes a draught fan coil pipe model through analyzing a heat-releasing pattern of the indoor draught fan coil pipe, establishes the thermal environment control model through analyzing two parts, solves relations between indoor temperature and other influence factors through laplace's transformation, and finally chooses a control variable to control and enables indoor temperature to maintain in a reasonable range. The building thermal environment control modeling method establishes a model on the basis of architectural thermal engineering, combines with thermal engineering characteristics of the draught fan coil pipe, can more accurately describe dynamic characteristics of the architecture thermal environment and provides a model support for subsequent control.

Description

technical field [0001] The invention relates to a building thermal environment modeling method, in particular to a building thermal environment control modeling method based on physical characteristics. Background technique [0002] At present, most of the researches on the control of building thermal environment are based on the load condition, and the historical data is used to identify and establish the system model. Although this modeling method can guarantee a certain modeling accuracy, it needs to collect data separately for different building objects, and the modeling accuracy is easily affected by the amount of data. [0003] Similarly, the use of physical methods to study the thermal environment of buildings also has a certain history, and some models have been established for the thermal environment of buildings. It can be found that there is a lack of control methods for thermal environment modeling at present, and the degree of integration of the modeling proces...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 赵安军陈一仁于军琪张军霖马康
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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