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Air conditioning air system initial balance debugging method based on Modelica

A debugging method and air-conditioning wind technology, applied in heating and ventilation control systems, heating and ventilation safety systems, space heating and ventilation, etc., can solve problems such as time-consuming, reduce labor and time, and achieve a good initial balance of pipes effect of effect

Inactive Publication Date: 2020-04-03
TIANJIN UNIV
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Problems solved by technology

For this method, the quality of commissioning largely depends on the engineering experience of field operators, and it takes a lot of time

Method used

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  • Air conditioning air system initial balance debugging method based on Modelica
  • Air conditioning air system initial balance debugging method based on Modelica
  • Air conditioning air system initial balance debugging method based on Modelica

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with example and accompanying drawing. The examples of the present invention are for better understanding of the present invention by those skilled in the art, and do not limit the present invention in any way.

[0034] Such as figure 2 Shown, the initial balance debugging method of the air-conditioning wind system based on Modelica of the present invention may further comprise the steps:

[0035] Step 1. Select the resistance coefficients of the manual control valves located at each tuyere to form a group of manual control valve resistance coefficients as the initial value of the manual control valve model in the air-conditioning air system model. Use Modelica language according to the actual engineering wind system site layout and Dimensions information establishes an overall air-conditioning air system model composed of air duct model, elbow model, shunt tee model, manual control valve model and f...

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Abstract

The invention discloses an air conditioning air system initial balance debugging method based on Modelica. The air conditioning air system initial balance debugging method comprises the following steps that firstly, a mathematical model of an air duct system is established by using a Modelica language, a resistance coefficient of a manual control valve is used as a regulating variable to be inputinto a model; a least absolute deviation (LAD) between an air outlet volume simulation value of each air outlet and a design value of each air outlet is calculated and regarded as an optimization target, an optimization algorithm is selected for continuous optimization until the deviation reaches the minimum value; and finally, a deviation value is calculated between the optimized simulation result air volume and the designed air volume, and the deviation value is compared with standard requirements. According to the air conditioning air system initial balance debugging method based on Modelica, guidance can be provided for actual debugging works, and manpower and time which are invested in actual engineering are reduced.

Description

technical field [0001] The invention relates to a debugging method for a building air-conditioning system, in particular to a Modelica-based initial balance debugging method for an air-conditioning system of a newly built large-scale public building. Background technique [0002] Commissioning in the construction industry belongs to the mature management and technical system of the North American construction industry. Work procedures and methods to ensure that the design intent can be realized and the owner's use requirements can be met. [0003] Such as figure 1 As shown, a complete set of air-conditioning air system is usually connected by fan, air pipe, shunt tee, and elbow. The fan is the power source of the entire air-conditioning air system, providing air after heat and humidity treatment and overcoming resistance loss. The required pressure head, after the heat and humidity treatment, the air passes through the air duct, the diversion tee, elbow and other pipe fitt...

Claims

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Application Information

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IPC IPC(8): F24F11/62G06F30/25
CPCF24F11/62
Inventor 田喆朱鼎辉
Owner TIANJIN UNIV
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