Construction thermal environment and construction energy-saving control method in air-conditioning construction

Abstract

The invention relates to a method for controlling building thermal environment and building energy conservation in an air-conditioning building, which comprises the following steps: calculating out the comprehensive temperature average value and the corresponding wave amplitude value thereof of a horizontal external surface and the west wall external surface of a local building roof according to data information that the temperature average value t0 of the outdoor air in a local air-conditioning building in continuous 5 days in the lately 10 years is more than or equal to 28 DEG C; determining the thermal transmission resistance control index of a roof and a wall in the process of heat preservation in the air-conditioning building; determining the heat insulation and energy conservation three-element control index of the wall, the roof and a window in the air-conditioning building; and controlling the hot working performances of the wall, the roof and the window according to the heat insulation and energy conservation three-element control index. The method gives full play to the use value of the existing meteorological data, adopts a simple method to make the calculation of the control indexes of each energy conservation aspect simple and fast, and has small investment cost. The method applied to the designs of the building thermal environment and the building energy conservation can greatly improve the energy conservation efficiency of the building.

Description

technical field The invention relates to a building thermal environment and a building energy-saving control method in an air-conditioned building. Background technique In 1992, the United Nations "Environmental Development" Conference passed the "21st Century Course", and our country immediately responded and proposed "China's 21st Century Agenda", taking "energy saving, reducing coal consumption, and developing renewable energy" as our country's "protecting the environment and insisting on sustainable development". Development" is the basic national policy and important task. In the total energy consumption of various countries, building energy consumption accounts for about 30% to 40%, and my country is no exception. At the same time, the average annual growth rate of my country's total energy production is only 1 / 2 of the average annual growth rate of the national GDP. Energy production lags far behind the development of the national economy. In addition, the thermal...

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Problems solved by technology

[1], the calculation process is complicated, and the characteristic parameters of the enclosure structure (roof, wall) must be set in advance before repeated trial calculation and verification, and the characteristic parameter values ​​cannot be directly obtained to control the indoor thermal environment;

[2] The indoor thermal environment control is established under the condition of natural ventilation (open the door and open the window), and it is not applicable to the indoor thermal environment and energy-saving control under the condition of indoor air conditioning (close the door and window)

From the above brief introduction of prior art, we can know: "Southern Energy Conservation Standard" under the condition of "indoor natural ventilation" and the thermal environment and thermal insulation "standard" under the condition of "indoor natural ventilation" and thermal environment and thermal insulation under the condition of "indoor heating" "Specifications", etc., there are inconsistencies in heat transfer theory: for example, the thermal environment and heat insulation "Specifications" under the "indoor natural ventilation" condition and the "Southern Energy Conservation Standard" under the "indoor natural ventilation condition" adopt enclosure structures multi-layer flat wall periodic unstable heat transfer theory; secondly, they also have inconsistencies in calculation methods: for example, the thermal environment and heat insulation under the condition of "indoor natural ventilation" "Code" and "Southern Energy Conservation Standards", both Both of them adopted the "trial and error verification method"; this calculation method belongs to the empirical assignment method

Therefore, the control indicators of the energy-saving characteristics of the enclosure structure (roof, wall) in the above-mentioned three "Energy Conservation Standards" have lost their "corresponding comparability".

In addition, the above-mentioned "energy-saving standards" have lost their correlation with the "Code" under the corresponding conditions, that is, the energy-saving control of the corresponding enclosure structure in the "Energy-saving Standards" has not been related to the thermal environment and The thermal insulation and thermal insulation control of the envelope structure (roof and wall) are connected and unified

At the same time, the "Energy Conservation Standard" fails to directly calculate the locking window from the characteristic control index of the enclosure structure (roof and wall) and the characteristic control index of the enclosure structure (window). The characteristic control index of the window, which leads to the arbitrary assignment of the characteristic control index of the window

The corresponding characteristic control indicators of the enclosure structure windows in the three "Energy Saving Standards" also lost "corresponding comparability"

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