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Radiation and convection combined micro-environment control device and control method

A control device and micro-environment technology, applied in airflow control elements, heating methods, piping arrangements, etc., can solve the problems of air blowing, high energy consumption of air conditioners, and inability to meet the thermal comfort needs of different individuals, achieving less space and improving inhalation. The effect of air quality, easy installation and setup

Pending Publication Date: 2021-03-19
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a micro-environment control device and control method combined with radiation and convection, through which users can adjust the air supply temperature and air volume according to their own thermal sensation and the degree of need for air conditioning and wind speed to meet the thermal comfort of the human body, which solves the problem that the whole room is used as the adjustment object, the air conditioner consumes a lot of energy, cannot meet the thermal comfort needs of different individuals, and easily causes the problem of blowing sensation

Method used

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  • Radiation and convection combined micro-environment control device and control method
  • Radiation and convection combined micro-environment control device and control method

Examples

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Effect test

Embodiment 1

[0057] According to the specific situation, a numerical calculation model with geometric dimensions of length × width × height is established in Ansys ICEM software. There is no external window in the room, and there is a person with a calorific value of 100W in the room, and the rest of the load is evenly set on the six walls, with a total heat load of 350W. The inner diameter of the radiant coil is 16mm, the outer diameter is 20mm, the hot water inlet temperature is 323K, the vertical rectangular duct length×width×height, the horizontal rectangular duct length×width×height, the second duct diameter is 8cm, and the horizontal delivery style The grid size is 30cm x 8cm. The wind speed at the outlet of the first air pipe 51 is 2m / s, and the wind speed at the outlet of the second air pipe is 2.5m / s.

[0058] The modeling completed in the above-mentioned Ansys ICEM software is imported into Ansys fluent for solution and calculation, as follows: The two-equation Realizable K-epsi...

Embodiment 2

[0061] According to the specific situation, a numerical calculation model with geometric dimensions of length × width × height is established in Ansys ICEM software. There is no external window in the room, and there is a person with a calorific value of 100W in the room, and the rest of the load is evenly set on six walls, with a total cooling load of 350W. The inner diameter of the coil is 16mm, the outer diameter is 20mm, the temperature of the cold water inlet is 280K, the length of the vertical rectangular duct is × width × height, the length of the horizontal rectangular duct is × width × height, the diameter of the second duct is 8cm, and the horizontal air supply grille is The length x height is 30cm x 8cm. The wind speed at the outlet of the first air pipe 51 is 2m / s, and the wind speed at the outlet of the second air pipe is 2.5m / s.

[0062] The modeling completed in the above-mentioned Ansys ICEM software is imported into Ansys fluent for solution and calculation, ...

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Abstract

The invention discloses a radiation and convection combined micro-environment control device and control method, and belongs to the field of research of ventilation manners, airflow distribution and human body comfort. The device sequentially comprises a radiation coil pipe, fans, an air pipe, a horizontal air supply grille, an activated carbon filter, a carbon dioxide filter, an electric heatingdevice, a personalized air supply tail end and other components, and the above components are sequentially connected into a whole to form the micro-environment control device. According to the micro-environment control device, the blowing feeling is avoided through the radiation coil pipe, the quality of air inhaled by the human body is improved through artificial fresh air, and the requirements of different human bodies for thermal comfort can be met.

Description

technical field [0001] The invention belongs to the technical field of ventilation mode, air flow organization, and human body comfort research, and specifically belongs to a microenvironment control device and control method combined with radiation and convection. Background technique [0002] For the air conditioning system that only uses convection, in the traditional mixed air supply system, the energy consumption of the air conditioner is large and it is difficult to meet the thermal comfort of everyone; in the layered ventilation system, relatively low temperature cold air appears in the lower part of the room, and the human body Ankle prone to wind sensation. [0003] For air conditioning systems that only use radiation or a combination of radiation and convection, in winter, floor heating or radiators are used for radiant heating, and the temperature in the room is approximately uniform. Since the system itself does not introduce outdoor fresh air, the air quality in...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F8/158F24F8/108F24F11/77F24F11/79F24F13/02F24F13/08F24F13/28F24D15/00F24D19/10
CPCF24F5/0089F24F11/77F24F11/79F24F13/02F24F13/08F24F13/28F24D15/00F24D19/1084F24F2221/34Y02B30/70
Inventor 杨斌苏伟刘一航李安桂尹海国杨长青高然
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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