Bridge type thermal rectifier

A thermal rectifier and bridge technology, applied in the field of bridge thermal rectifiers, to achieve the effect of improving energy conversion efficiency

Active Publication Date: 2021-08-17
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present disclosure provides a bridge-type thermal rectifier, whose technical purpose is to solve the problem of obtaining constant power output from a heat source that changes with time, and can solve the problem of uninterrupted out

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[0023] The present disclosure will be described in detail below with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "first", "second", "third", "fourth" are only used for description purposes, and cannot be understood as indication or hinting relative importance or hidden. Include the number of technical features indicated, it is only used to distinguish between different components.

[0024] Further, the thermal diode according to the present invention has the working mechanism of which is: when the external temperature difference is consistent with the hot diode offset direction, the thermal diode heat resistance is small, defined as R Fwd. The heat flow can quickly transfer from the hot end by the thermal diode from the hot end, when the external temperature difference is opposite to the hot diode bias direction, the thermal diode heat resistance is large, defined as R Rev. The heat flow cannot be effec...

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Abstract

The invention discloses a bridge type thermal rectifier, relates to the technical field of engineering thermophysics, and solves the technical problem that constant power output cannot be obtained from a heat source changing along with time. The main points of the technical scheme are that a first heat energy absorption/release plate is heated to obtain high temperature; the first heat capacity is heated by positively biasing the first heat diode directed to the first heat capacity, and the second heat capacity cannot be heated by the first heat energy absorption/release plate due to reverse biasing of the second heat diode, so the first heat capacity will be maintained at a higher temperature while the second heat capacity is maintained in a low temperature state. Along with weakening of the heat source, when the temperature of the first heat energy absorption/release plate continues to drop and drops below the second heat capacity temperature, waste heat obtained by the second heat capacity from work of the heat engine can flow through the first heat energy absorption/release plate from the second heat diode to be dissipated to the outside. After a plurality of cycles, the first heat capacity and the second heat capacity are respectively maintained at a relatively stable temperature, so that stable output is continuously carried out by virtue of the heat engine.

Description

technical field [0001] The disclosure relates to the technical field of engineering thermophysics, in particular to a bridge type thermal rectifier. Background technique [0002] The existing conversion and utilization of time-varying heat sources (hereinafter referred to as "AC" heat sources) mainly consists of the following forms: (1) Photovoltaic panel power generation technology, which converts solar energy into electrical energy during the day and stores it in the form of a battery for output (2) Solar water heaters, which absorb the heat of the sun during the day and store it as thermal energy; (3) Thermoelectric effects, including pyroelectric effects and thermoelectric effects, convert temperature differences directly into electrical energy. [0003] The shortcomings of the above three forms are that photovoltaic power generation and water heaters cannot solve the problem of periodic changes in external temperature, such as not working at night and in rainy days, and...

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Application Information

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IPC IPC(8): H02N11/00F03G7/04F03G6/00
CPCH02N11/002F03G7/04F03G6/00Y02E10/46
Inventor 赵晓冬陈震
Owner SOUTHEAST UNIV
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