JPS6238809A - Power plant by temperature difference - Google Patents

Abstract

PURPOSE:To generate power in a simple and inexpensive manner by the effective use of heat source such as the sunlight or the like by taking out driving force of kinetic energy which is generated when fluid moves from a heat receiving part to a radiating part inside a circulating system. CONSTITUTION:An annular circulating system 1 is filled with fluid 2 and has both a heat receiving part 3 and a radiating part 4 at the opposed sides of said system, each of said parts 3 and 4 being surrounded by heat holding and insulating substance 5 and radiating substance 4, respectively. A starting power unit 7 is disposed in a route of the fluid 2 between the heat receiving part 3 and radiating part 4. Said unit 7 consists of both wheels 8 exposed to the fluid route and an output shaft 9 led out from the circulating system 1. The fluid 2 is heated and evaporated by the heat receiving part 3 and the resulting steam is cooled and liquefied by the radiating part 4. The liquid is then returned into the heat receiving part 3 along a capillary tube 12. The wheels 8 are at this time turned by the kinetic energy of the fluid 2 and the turning force is taken out from the circulating system 1 via the output shaft 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a temperature differential power device that attempts to obtain power from a temperature difference.

[Technical background] For example, a spacecraft or a satellite launched into outer space is exposed to intense radiant heat from the sun and is heated to a high temperature on the sunny side, while the opposite shaded side is cold and large. There is a temperature difference. There is a well-known heat pipe that alleviates this temperature difference, but this heat pipe only serves to alleviate the temperature difference.

[Objects and Structure of the Present Invention] The present invention takes heat pipe technology one step further and aims to effectively utilize kinetic energy when a fluid moves with heat in a circulation system. In order to achieve this, the present invention provides a heat receiving section at one end of a circulation system that is closed from the outside and a heat dissipation section at the other end. A motive force device such as a blade wheel that is moved by the flow of the vaporized fluid is provided between the heat receiving part and the heat radiating part of the fluid, and a driving force device such as a blade wheel that is moved by the flow of the vaporized fluid is provided between the heat receiving part and the heat receiving part of the fluid. The present invention provides a temperature differential power device in which a capillary portion is provided on the return path of the temperature differential power device.

[Example] To explain the temperature differential power device shown in FIG. 1, 1
is an annular circulation system closed from the outside, and the inside thereof is filled with fluid 2. Reference numeral 3 denotes a heat receiving portion provided at one end of the circulation system 1 and made of a material having an appropriate heat receiving area and excellent thermal conductivity.

4 is a heat dissipation section provided at the other end of this circulation system 1. 5
6 indicates a heat-retaining insulating material surrounding the heat receiving section 3, and 6 indicates a heat dissipating material surrounding the heat dissipating section 4. In this circulation system 1, when the fluid 2 is heated and vaporized by the heat receiving part 3, the vapor flows toward the heat radiating part 4, and is cooled by the heat radiating part 4 and becomes the liquefied restoration fluid 2, which causes capillary action in the capillary part 12. It is returned to the heat receiving part 3 by □. Then, the fluid 2 that returns to the heat receiving part 3 is reheated and vaporized, repeating the same movement.
Therefore, the heat of the heat receiving part 3 is transmitted to the heat radiating part 4 without limit. Thus, in the present invention, the heat receiving part 3 and the heat radiating part 4 of the fluid 2 are
A starting force device 7 is provided in the middle of the journey between. The illustrated starting force device 7 is composed of a blade wheel 8 and an output shaft 9, with the blade wheel 8 facing the path and the output shaft 9 leading out of the circulation system 1.

However, in the temperature differential power device configured in this way, when the fluid 2 moves in the circulation system 1 accompanied by heat, the impeller 8 is rotated by its kinetic energy.

Therefore, the rotational force of the impeller 8 is extracted to the outside of the circulation system 1 via the output shaft 9.

Note that the capillary portion in the present application is not limited to a tubular shape, but may be a blotter-like or sponge-like shape as long as capillarity occurs.

FIG. 2 shows a power plant according to another embodiment, and in this example, a black paint coating 10 is formed on the heat receiving side surface of the heat receiving portion 3. In this way, since the coating 10 absorbs heat well, the heat receiving efficiency by the heat receiving part 3 increases,
The kinetic energy of fluid 2 increases. Therefore, the power extracted by the starting force device 7 also becomes large.

The power plant shown in FIG. 3 further includes a condensing lens 11 arranged in a screen-like manner in front of the heat receiving section 3 and the black coating 1o.
In this way, a large amount of heat can be received through the condenser lens 11, and even greater power can be extracted.

[Effects of the invention] Since the kinetic energy generated when the fluid moves from the heat receiving part toward the heat radiating part in a circulation system closed from the outside can be extracted as a driving force, it is possible to use even a heat source such as sunlight. It is fully functional and requires no special power source, fuel, or batteries. Therefore, it is advantageous that it can be used as a power source for spacecraft, artificial satellites, etc. in outer space.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view, and FIGS. 2 and 3 are longitudinal sectional views of other embodiments. ■... Circulation system, 2... Fluid, 3... Heat receiving section, 4... Heat radiation section, 7... Starting force device, 8...
- Impeller, 12... Capillary section. Patent applicant: Daido Steel Co., Ltd. Figure 2 Figure 8

Claims (1)

[Claims] A heat receiving section is provided at one end of a circulation system that is closed from the outside, and a heat radiating section is provided at the other end, and a fluid that is heated by the heat receiving section and vaporized and cooled by the heat radiating section and liquefied is contained in the circulation system. A driving force device such as a impeller, which is moved by the flow of the vaporized fluid, is installed between the heat receiving part and the heat radiating part of the fluid, and A temperature difference power device characterized in that a capillary section is provided on the way back.