CN110843512A

CN110843512A - Solar automobile power device

Info

Publication number: CN110843512A
Application number: CN201911190926.0A
Authority: CN
Inventors: 陈扬; 于洋
Original assignee: Jiangsu Institute of Technology
Current assignee: Jiangsu University of Technology; Jiangsu Institute of Technology
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-02-28

Abstract

The invention relates to a solar automobile power device which comprises a collecting mirror used for collecting solar energy, wherein the collecting mirror transfers energy to a heat absorber, the heat absorber transfers the energy to a power mechanism through a pipeline, the other end of the power mechanism is communicated with a heat collector through the pipeline, the heat collector is connected with the heat absorber through a pressure pump, a heat-conducting medium is arranged in the pipeline, and a heat exchange medium used for exchanging energy with the heat-conducting medium is arranged in the power mechanism. The circulation is closed, so that the high-pressure gas far greater than atmospheric pressure can be adopted for working, and the system efficiency can be improved. The invention has simple structure, adopts high-pressure gas which is larger than the atmospheric pressure to work, improves the efficiency of the system, adopts carbon dioxide as a heat-conducting medium, enters a supercritical state at 7.4MPa and above 32 ℃, has the density close to that of liquid and has high heat exchange efficiency.

Description

Solar automobile power device

Technical Field

The invention belongs to the technical field of comprehensive utilization of energy, and relates to a solar power system.

Background

Solar cars are also a type of electric cars in a sense, except that the batteries of electric cars are charged by the industrial grid, while solar cars are solar cells. Solar vehicles use solar cells to convert light energy into electrical energy that can be stored in storage batteries for use in powering the vehicle's electric motor. The solar car does not burn fossil fuel, so no harmful substances are emitted. It is estimated that if a gasoline-fueled vehicle is replaced by a solar car, the carbon dioxide emissions per car can be reduced by 43 to 54%.

A dense hemp device like a honeycomb is arranged on a solar car, and is a solar panel. Solar cells are generally classified into silicon cells, cadmium sulfide cells, gallium arsenide cells, etc., depending on the semiconductor material used, and among them, silicon solar cells are most commonly used. Under sunlight, the solar photovoltaic cell panel collects sunlight and generates current which is universal for people. This energy is stored by the battery and provides power for later travel. Or directly supplied to the engine, or stored while being opened. The energy drives the wheels to move through the engine controller to push the solar automobile to move forward. With the improvement of the living standard of people, the number of private cars is increased day by day, the exhaust gas pollution of the conventional power automobile is increasingly serious, the state strictly limits the registration of the conventional power automobile enterprises, and the development of new energy automobiles is encouraged. The appearance of the composite energy automobile is similar to that of a traditional automobile, and only a part of solar energy absorption devices, such as a roof panel, are additionally arranged on the surface of the automobile and used for charging a storage battery or directly serving as a power source. The automobile has both gasoline engine and motor, the gasoline engine drives the front wheel, and the accumulator supplies power to the motor to drive the rear wheel. The motor is used for low-speed running. When the speed reaches a certain speed, the gasoline engine is started, the motor is separated from the driving shaft, and the automobile runs like a common automobile.

Disclosure of Invention

The invention provides a solar automobile power device, aiming at solving the problems that the cost is high and the conversion efficiency of a solar panel is low by utilizing a mode of matching the solar panel and a motor, the solar automobile power device comprises a condensing lens for collecting solar energy, the condensing lens transfers the energy to a heat absorber, the heat absorber transfers the energy to a power mechanism through a pipeline, the other end of the power mechanism is communicated with a heat collector through the pipeline, the heat collector is connected with the heat absorber through a pressurizing pump, a heat-conducting medium is arranged in the pipeline, and a heat-exchanging medium for exchanging the energy with the heat-conducting medium is arranged in the power mechanism.

Preferably, the heat exchange medium is hydrogen. The hydrogen has good thermal performance, small molecular molar mass and large molecular number per unit mass.

Further, the heat transfer medium is carbon dioxide. The carbon dioxide enters a supercritical state at 7.4MPa and above 32 ℃, and the heat exchange efficiency of the carbon dioxide entering the supercritical state is high.

Preferably, the pressurizing pump pressurizes the carbon dioxide, and the pressurized carbon dioxide is communicated with the heat absorber through the pipe. After pressurization, the carbon dioxide critical pressure is maintained at 7.4MPa or more, and the supercritical state is entered.

Further, in order to improve the utilization rate of the sun, the condenser is fixedly installed through a double-shaft tracking system.

Preferably, the power mechanism is a cylinder. The power mechanism can be a cylinder or a steam engine, and the carbon dioxide brings energy into the power mechanism and finally converts the energy into mechanical energy of the power mechanism to be output.

Has the advantages that: the invention has simple structure, adopts high-pressure gas which is larger than the atmospheric pressure to work, improves the efficiency of the system, adopts carbon dioxide as a heat-conducting medium, enters a supercritical state at 7.4MPa and above 32 ℃, has the density close to that of liquid and has high heat exchange efficiency.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

1. a condenser lens; 2. a heat collector; 3. a pressure pump; 4. a heat sink; 5. a cylinder; 6. a heat exchange medium; 7. a pipeline.

Detailed Description

As shown in the figure, a solar energy automobile power device, including the condensing lens 1 that is used for collecting solar energy, condensing lens 1 is on energy transfer to heat absorber 4, heat absorber 4 passes through pipeline 7 with energy transfer to power unit, power unit's the other end passes through pipeline 7 and heat collector 2 intercommunication, heat collector 2 through force (forcing) pump 3 with heat absorber 4 is connected, be equipped with heat-conducting medium in the pipeline 7, be equipped with in the power unit be used for with heat-conducting medium exchange energy's heat transfer medium 6. The heat conducting medium is carbon dioxide, the heat exchange medium 6 is hydrogen, the thermal performance of the hydrogen is good, the molecular molar mass is small, and the number of molecules in unit mass is large. The booster pump 3 is used for pressurizing the carbon dioxide, the pressurized carbon dioxide is communicated with the heat absorber 4 through the pipeline 7, the carbon dioxide is pressurized to be in a supercritical state, and the heat exchange efficiency of the carbon dioxide in the supercritical state is high. In order to improve the utilization rate of light, the condenser lens 1 is fixedly installed through a double-shaft tracking system.

The working principle is as follows: as shown in the figure, the condenser lens 1 collects light to the heat absorber 4 by means of a double-shaft tracking system, the temperature of carbon dioxide in the heat absorber 4 gradually rises, the critical pressure of the carbon dioxide at the moment is greater than 7.4MPa until the temperature of the carbon dioxide exceeds 32 ℃, the carbon dioxide enters a supercritical state at the moment, the carbon dioxide carries energy to enter a heat exchange pipeline 7, the energy is transferred to a heat exchange medium 6 hydrogen in a power mechanism, the cylinder 5 converts the energy in the hydrogen into mechanical energy of the cylinder 5 to be output, the carbon dioxide after the energy transfer reaches a heat collection pipe through the pipeline 7, then the carbon dioxide in the heat collection pipe is pressurized by a pressurizing pump 3, the critical pressure of the carbon dioxide is kept above 7.4MPa after pressurization, and the pressurized carbon dioxide enters the heat absorber 4 to start the next cycle.

Claims

1. A solar automobile power device is characterized in that: including being used for collecting condensing lens (1) of solar energy, condensing lens (1) is on heat absorber (4) with energy transfer, heat absorber (4) are through pipeline (7) with energy transfer to power unit, power unit's the other end passes through pipeline (7) and heat collector (2) intercommunication, heat collector (2) through force (forcing) pump (3) with heat absorber (4) are connected, pass through heat-conducting medium in pipeline (7), be equipped with in the power unit be used for with heat-conducting medium exchange energy heat transfer medium (6).

2. The solar car power plant of claim 1, wherein: the heat exchange medium (6) is hydrogen.

3. The solar car power plant of claim 2, wherein: the heat conducting medium is carbon dioxide.

4. A solar car power plant according to claim 3, characterized in that: the pressurizing pump (3) is used for pressurizing the carbon dioxide, and the pressurized carbon dioxide is communicated with the heat absorber (4) through the pipeline (7).

5. The solar car power plant of claim 1, wherein: the condenser lens (1) is fixedly installed through a double-shaft tracking system.

6. The solar car power plant of claim 1, wherein: the power mechanism is a cylinder (5).