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Urban heat island circulation demonstrating device and demonstrating method

A demonstration device and urban heat island technology, applied in the field of experimental equipment, can solve the problems of difficult to express the connotation mechanism clearly, unfavorable for students to correctly understand and deepen their impression, discount of teaching and popular science effects, etc. Use-value, compact effect

Pending Publication Date: 2020-03-24
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of actual teaching and science popularization, since the explanations of the urban heat island circulation by the explainers are mostly based on drawing conceptual maps, schematic diagrams, or text explanations, there is no relevant demonstration device to enable students to more accurately and intuitively observe this kind of central circulation. The phenomenon of large-scale atmospheric flow, especially because of the urban heat island circulation phenomenon, if only relying on the above-mentioned means, the connotative mechanism of it is difficult to express clearly, which is not conducive to students' correct understanding and deepening of their impressions, thus greatly reducing the effect of teaching and popular science

Method used

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  • Urban heat island circulation demonstrating device and demonstrating method
  • Urban heat island circulation demonstrating device and demonstrating method
  • Urban heat island circulation demonstrating device and demonstrating method

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Comply with the above technical solutions, such as Figure 1 to Figure 8 As shown, an urban heat island circulation demonstration device includes a support base 1 and a demonstration device 2 connected to the support base 1. The demonstration device 2 includes a water tank 3 and nine semiconductor cooling chips 4 arranged at the bottom of the water tank 3. The top of the water tank 3 is also equipped with a heating plate 5; the semiconductor refrigeration sheet is a kind of heat pump, which utilizes the Peltier effect of semiconductor materials. When direct current passes through, heat is absorbed and released on the upper and lower surfaces of the refrigeration sheet respectively, so as to realize the cooling of the upper surface and the lower surface of the cooling sheet. For surface heating, switching between cooling and heating modes can be realized by switching the current direction. The default mode in the present invention is cooling mode, that is, the upper surfa...

Embodiment 2

[0059] A method for demonstration of urban heat island circulation, the method is implemented using the device in Example 1, comprising the following steps:

[0060] Step 1: inject the saline solution into the water tank 3 through the through hole 13 arranged in the center of the heating plate 5, and seal the through hole 13 with the heat-insulating rubber plug 16 after the water injection is completed. The heat-insulating rubber plug 16 is used to prevent the convection inside the tank from influences;

[0061] Step 2: Set both the central semiconductor cooling sheet 6 and the edge semiconductor cooling sheet 7 to cooling mode, turn on the power switch of the axial flow fan 12 and the heating plate 5 until a stable linear density layer is formed inside the water tank 3; the central semiconductor cooling sheet 6 And the edge semiconductor cooling plate 7 is used to provide cooling capacity, the heating plate 5 is used to provide heat, and the axial flow fan 12 is used to play ...

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Abstract

The invention provides an urban heat island circulation demonstrating device and demonstrating method. The urban heat island circulation demonstrating device comprises a supporting base and a demonstrating device connected to the supporting base. The demonstrating device comprises a water tank and a plurality of semiconductor chilling plates arranged at the bottom of the water tank, and a heatingplate is arranged at the top of the water tank. The semiconductor chilling plates arranged at the bottom of the water tank comprise a central semiconductor chilling plate arranged in the center of thebottom and edge semiconductor chilling plates arranged on the periphery of the bottom of the water tank, and the central semiconductor chilling plate and the edge semiconductor chilling plates are independently controlled. The device provided by the invention meets the requirements of urban heat island circulation demonstration, and enables students to observe the urban heat island circulation phenomenon more visually, thereby enabling explaining personnel to explain the urban heat island effect and the urban heat island circulation more accurately and visually, and remarkably improving the teaching and science popularization effects. The device is designed strictly according to the similarity principle and criterion and can also be used for scientific research, so that the use value of the device is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, and in particular relates to an urban heat island circulation demonstration device and a demonstration method. Background technique [0002] The urban heat island effect is one of the typical characteristics of the urban climate. It refers to the "high temperature" of the urban area due to a large number of artificial heat generation, high heat storage bodies such as buildings and roads, and the reduction of green spaces in the city, and the temperature in the city is significantly higher. phenomenon in the outer suburbs. On the near-surface temperature map, the suburban temperature changes little, while the urban area is a high-temperature area, like an island protruding from the sea. Since this type of island represents a high-temperature urban area, it is vividly called an urban heat island. The urban heat island circulation driven by the urban heat island effect occurs under c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/00
CPCG09B25/00Y02A30/60
Inventor 吴松恒王怡王超杰曹嘉璇陈粲文
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY