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Method for optimized setting of air conditioner temperature in office building

An air-conditioning temperature and optimization setting technology, which is applied to heating methods, mechanical equipment, lighting and heating equipment, etc., can solve problems such as immature technology

Inactive Publication Date: 2015-09-09
CENT SOUTH UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Real-time adjustment of the air-conditioning temperature setting value is the key to the dynamic air-conditioning temperature setting method based on changes in indoor and outdoor environmental factors and the thermal comfort of indoor personnel. The existing technology in this regard is not very mature and needs further improvement.

Method used

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  • Method for optimized setting of air conditioner temperature in office building
  • Method for optimized setting of air conditioner temperature in office building
  • Method for optimized setting of air conditioner temperature in office building

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Embodiment Construction

[0037] A schematic diagram of a room in an office building such as figure 1 with figure 2 shown. In office buildings during the day (day refers to t 1 ~t 2 In the time period, you can take t 1 =6,t 2 =18; night refers to 0~t1 and t 2 ~ 24 hours) the air conditioner is on, and the indoor air temperature is T i and air conditioner temperature set point T s Equal, the air conditioner is turned off at night, natural ventilation, the ventilation rate at night is q v . Attribute indoor tables and chairs to internal thermal substances. The walls of the room are divided into exterior walls and partition walls. The wall that is in direct contact with the outdoor environment is the exterior wall, and the other walls are partition walls. All heat gain in the room during the day is attributed to an internal heat source, and its heat gain is E; there is no heat gain in the room at night, that is, E=0 at night.

[0038] To quantify the effect of the outdoor environment on the i...

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Abstract

The invention discloses a method for optimized setting of air conditioner temperature in an office building and relates to a dynamic setting method for changing a set value of the air conditioner temperature in real time according to indoor and outdoor environmental factors. To improve the dynamic setting of the air conditioner temperature, a simplified room thermodynamic model is established; in the model, the air conditioning opening is performed in the daytime, and natural ventilation is performed at night. The dynamic relations between the air conditioner load and environmental variables such as outdoor temperature, hot material temperature and the indoor temperature set value are established through the analysis of the room model. With the air conditioner load as an objective function and according to the limiting conditions that the human comfort index PMV value is within the regulated range, an optimized model of the air conditioner temperature set value is established; and optimization solution is performed on the model, so as to obtain the optimal air conditioner temperature set value at each moment. The obtained dynamic temperature set value can guarantee the good thermal comfort level for indoor workers and can effectively reduce energy consumption of the air conditioner.

Description

technical field [0001] The invention relates to a method for optimally setting the temperature of an indoor air conditioner in an office building. Background technique [0002] In large office buildings, the energy consumption of air conditioners accounts for about 40% of the total energy consumption of buildings. With the increase of large office buildings and the increasing demand for comfort, the energy consumption of air conditioners increases rapidly. How to take effective measures to ensure Reducing air-conditioning energy consumption on the basis of human comfort is of great significance to building energy conservation. [0003] Air conditioner temperature setting is divided into two types: fixed temperature setting and dynamic temperature setting. Fixed temperature setting means that the set value of the air conditioner is a constant value for a period of time. Changes from time to time due to environmental changes such as temperature. The traditional air-condition...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/46F24F11/62
Inventor 彭辉王玉山王丹刘明月杨晗武明源覃业梅
Owner CENT SOUTH UNIV
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