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Real time load calculation method considering thermal inertia of building and solar radiation effect

A technology of solar radiation and real-time load, which is applied in heating methods, sustainable buildings, household heating, etc., can solve problems such as thermal inertia of buildings and the impact of solar radiation, achieve good energy saving and emission reduction benefits, and avoid oversupply or the effect of undersupply

Inactive Publication Date: 2017-08-18
HUADIAN ELECTRIC POWER SCI INST CO LTD
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Problems solved by technology

[0005] The Chinese patent with the application number 201410298209.0 discloses a temperature control method for the secondary network supply and return water aimed at solar radiation, which can accurately and reliably determine the temperature of the secondary network supply and return water to avoid excessive heating, but does not consider the thermal inertia of buildings and solar radiation. radiation effects

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Embodiment Construction

[0021] The present invention will be described in further detail below through examples, and the following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0022] This embodiment includes the following steps:

[0023] a. Obtain the initial model formula (1) for real-time load calculation considering the thermal inertia of buildings and the influence of solar radiation, that is, q 0 =q w +q c =f(t z ,t n ...)+f(t τ ,t n ,…).

[0024] b. Get the radiator heat flow q 0 Calculation model formula (2), namely q 0 =f(t m ,t n ...) = k(t m -t n ).

[0025] c. Get the comprehensive heat flow q of the external window and cold wind penetration w Calculation model formula (3), namely q w =f(t z ,t n ...) = k 1 (t n -t z ).

[0026] d. Obtain the heat dissipation flow q of the wall maintenance structure c Calculation model formula (4), namely q c =f(t τ ,t n ,…)=k 2 (t n -t τ ).

[0027] e....

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Abstract

The invention provides a real time load calculation method considering thermal inertia of a building and a solar radiation effect. The method comprises that an outdoor comprehensive temperature simplified calculation model considering the solar radiation effect and absorption characteristics of the building for solar radiation is put forward, an outdoor comprehensive equivalent temperature simplified calculation model considering the thermal inertia of the building, that is, considering that the effect of an outdoor temperature on the interior of a room has attenuation and delay, and finally a real time heating load calculation model comprehensively considering the thermal inertia of the building and the solar radiation effect is finally put forward. By adopting the method provided by the invention, computer measurement and control is easy to realize, two-network water supplying and returning temperatures can be accurately and reliably determined through verification of application, oversupply or supply lack is avoided, and better energy-saving and emission reduction benefits are realized.

Description

technical field [0001] The invention relates to a real-time load calculation method considering the influence of building thermal inertia and solar radiation, and belongs to the technical field of central heating. Background technique [0002] Central heating technology is easy to realize the advantages of energy saving, scientific management, improvement of heating quality, and improvement of environmental quality, and has become the mainstream technology for heating buildings in winter. Central heating uses hot water or steam as the heat medium, and one or more heat sources pass through the first station, the primary network, the heat exchange station and the secondary network in turn to supply heat to district heat users. Centralized heating comprehensively considers factors such as the building structure, environmental conditions, and pipe network of heat users, adjusts the heating load, and supplies heat to heat users to maintain a comfortable temperature. In district ...

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Application Information

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IPC IPC(8): F24D19/10
CPCF24D19/1048F24D2220/04F24D2220/042Y02A30/60Y02B10/20Y02B10/70
Inventor 孙士恩费盼峰高新勇
Owner HUADIAN ELECTRIC POWER SCI INST CO LTD
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