Partition plate type liquid bidirectional thermal diode

A thermal diode and baffle type technology, applied in the field of renewable energy efficient utilization devices, can solve the problems of high initial investment, inability to take into account, complex structure, etc., and achieve the effect of overcoming single function and simple structure

Inactive Publication Date: 2008-07-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

One is that the structure is more complicated, which means that processing is more difficult and the initial investment is relatively high
The second is that the heat transfer is only allowed to run in one direction for many years, that is to say, there is only one function: or it is only used for passive heating of solar energy in the heating season, and it does not operate in the cooling season; or it is only used for passive cooling in the cooling season, and it does not operate in the heating season ; the two cannot be balanced

Method used

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  • Partition plate type liquid bidirectional thermal diode
  • Partition plate type liquid bidirectional thermal diode

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Embodiment Construction

[0016] As shown in Figure 1-2, the present invention is composed of a liquid storage tank shell 1, a thermal insulation board 2, a control blade 3, and a transparent cover 4; the thermal insulation board 2 divides the liquid storage tank into an outer layer 5 and an inner layer layer 6; the bottom of the thermal insulation board 2 has a certain distance from the bottom of the liquid storage tank shell 1 to form a lower channel 7; the top of the thermal insulation board 2 has a certain distance from the top of the liquid storage tank shell 1 to form an upper channel channel 8. The heights of the upper and lower passages should be as small as possible, but they must be able to effectively convect between the inner and outer liquid layers when necessary. The height of the upper channel 8 is 5-20mm, which is slightly higher than that of the lower channel 7, because the effective flow area of ​​the upper channel 8 is reduced by the control vane 3 . The thickness of the outer layer...

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Abstract

A partition-type liquid two-way thermal diode belongs to the technical field of building energy-saving. The invention comprises a reservoir shell (1), a heat-insulating plate (2), a control blade (3) and a transparent cover (4). The heat-insulating plate (2) is positioned inside a reservoir to divide the reservoir into inner and outer liquid layers. An elongated flow passage is arranged at the top and the bottom of the heat-insulating plate (2) respectively. If necessary, the control blade (3) can completely seal the flow passages. The heat-insulating plate (2) has good heat-insulating effect. The invention ensures the heat transfer in the desired direction and provides the heat insulation in the undesired direction. The position of the control blade (3) is controllable so that the control blade is arranged in different positions in cold seasons and in hot seasons. Compared with prior thermal diodes, the invention has the advantages of simple structure and two functions of solar energy heating in cold seasons and external cold source-based refrigeration in hot seasons.

Description

technical field [0001] The invention relates to a renewable energy efficient utilization device which utilizes solar energy for heating in the heating season (winter and the transition season at both ends of winter) and cools with external environmental cold sources in the cooling season (summer and the transition season at both ends of summer), which belongs to building energy saving technology field. Background technique [0002] Under the situation of global energy shortage and environmental deterioration, building heating and air-conditioning energy conservation has become an important issue in energy conservation and climate change control. In industrially developed countries, building operation energy consumption generally accounts for more than 1 / 3 of the total energy consumption of society. According to conservative data, the current energy consumption of civil buildings in my country accounts for about 1 / 4 of the total energy consumption of the society. With the i...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24J2/04
CPCY02E10/44
Inventor 方贤德杨婷婷戴秋敏夏璐璐
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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