Method for determining surface temperature change of radiant panel of radiant cooling system in water temperature rise

A technology of surface temperature and water supply temperature, applied in heating and ventilation control systems, heating and ventilation safety systems, air conditioning systems, etc., to achieve the effects of high accuracy, simple control system, and prevention of condensation on the surface of radiant panels

Inactive Publication Date: 2017-05-31
TIANJIN UNIV OF COMMERCE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] Compared with traditional air conditioning system, radiant cooling air conditioning system has a large area of ​​cold radiation surface, so condensation is its biggest problem

Method used

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  • Method for determining surface temperature change of radiant panel of radiant cooling system in water temperature rise
  • Method for determining surface temperature change of radiant panel of radiant cooling system in water temperature rise
  • Method for determining surface temperature change of radiant panel of radiant cooling system in water temperature rise

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Embodiment Construction

[0022] Below, the substantive features and advantages of the present invention will be further described in conjunction with examples, but the present invention is not limited to the listed examples.

[0023] see figure 1 As shown, the radiant cooling system of the present invention includes a radiant plate, a plate heat exchanger 4 connected to the circulating water circuit of the radiant plate, wherein the water inlet of the plate heat exchanger 4 is connected to a water outlet of the water distributor, The other water outlet of the water separator is connected to the water inlet of the fresh air unit, and the water outlet of the chiller is connected to the water inlet of the water separator. The water separator transfers the water of the chiller to the plate heat exchanger and the fresh air unit for heat exchange; the plate heat exchanger Heater 4 and the water return port of the fresh air unit are respectively connected to the two return water inlets of the water collector...

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Abstract

The invention relates to a method for determining the surface temperature change of a radiant panel of a radiant cooling system in water temperature rise. The method comprises the following steps: determining influence factors of the surface temperature change of the radiant panel and the change range of each factor according to the actual running condition of the radiant cooling air-conditioning system; simulating the surface temperature change situation of the radiant panel in water temperature rise under different influence factors by applying ANSYS software according to the determined influence factors of the surface temperature change rule of the radiant panel and the change range of each factor, and acquiring sample data; and, based on the SAS software, performing regression analysis on the sample data by applying a statistic analysis program to acquire a surface temperature change prediction model of the radiant panel in water temperature rise. A prediction result acquired by regression analysis has a relatively high accuracy, the control system is simple, and real-time control can be realized. The method is applicable to control of residential building warming systems.

Description

technical field [0001] The invention belongs to the technical field of radiation cooling, and in particular relates to a method for determining the temperature change of a radiation plate surface of a radiation cooling system when the temperature of water supply is raised. Background technique [0002] Compared with the traditional air-conditioning system, the radiant cooling air-conditioning system has the advantages of good comfort, no blowing sensation, no noise, uniform indoor temperature field distribution, and energy saving. The radiant cooling air-conditioning system realizes the independent control of temperature and humidity, which solves the problem of energy waste caused by the coupling of temperature and humidity. Under the same hot and humid environment, the indoor design temperature can be increased by 1-2°C under the premise of using the radiant cooling air-conditioning system and the same thermal comfort of the human body. At present, the supply water temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F5/00F24F11/00
Inventor 金梧凤于斌贾利芝高攀刘硕袁小勇刘新明
Owner TIANJIN UNIV OF COMMERCE
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