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A composite energy system of solar photovoltaic combined cooling, heating and power supply

A technology of combined cooling, heating and power and solar photovoltaic, applied in the field of solar energy utilization, can solve the problems that the temperature of hot water supply cannot reach the daily level, the existence of flowing liquid, and the easy occurrence of leakage, so as to overcome thermal instability and intermittent problems. performance, improve thermal quality, and reduce energy waste

Active Publication Date: 2020-06-02
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method provides hot water at a low ambient temperature, which cannot be used for daily use, and there is flowing liquid in the system, making the equipment complex and prone to leakage

Method used

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  • A composite energy system of solar photovoltaic combined cooling, heating and power supply
  • A composite energy system of solar photovoltaic combined cooling, heating and power supply
  • A composite energy system of solar photovoltaic combined cooling, heating and power supply

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Embodiment 1

[0036] A composite energy system for solar photovoltaic combined cooling, heating and power supply, its structure is as follows figure 1 As shown, the system includes a solar battery temperature-controlled power supply heating unit and a heat pump unit. The solar battery temperature-controlled power supply heating unit includes a power supply subunit and a heat supply subunit. The sub-unit is connected with the heat pump unit, the heat user unit and the tap water, and the heat pump unit is connected with the heat user unit and the tap water.

[0037] The hot consumer unit includes a cold consumer line 20 and a hot consumer line 21 .

[0038] The electronic supply unit includes a solar cell panel 1 and a double-pole double-throw switch 3 and a double-pole double-throw switch 18 respectively located at the positive and negative poles of the solar cell panel 1, two of the double-pole double-throw switch 3 and the double-pole double-throw switch 18 The non-moving ends are respect...

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Abstract

The invention relates to a compound energy system capable of achieving solar photovoltaic combined cold, heat and power supply. The compound energy system comprises a solar cell temperature control power supply and heat supply unit and a heat pump unit; the solar cell temperature control power supply and heat supply unit comprises a power supply subunit and a heat supply subunit, the power supply subunit communicates with a subscriber circuit and a power grid, the heat supply subunit is connected with the heat pump unit, a heat consumer unit and tap water, and the heat pump unit is connected with the heat consumer unit and the tap water. Compared with the prior art, the compound energy system has the advantages that solar photovoltaics, optothermal and a heat pump are combined, the application range of solar energy is widened, combined cold, heat and power supply compound energy utilization integrating solar cell power generation, heating and refrigerating is achieved, the comprehensive utilization efficiency of solar energy is improved, and the cold-heat-power multi-form energy source requirements of a building are met.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a composite energy system for solar photovoltaic combined cooling, heating and power supply. Background technique [0002] With the increasing tension of fossil energy and environmental issues, clean energy and low energy consumption systems have attracted much attention. Solar energy is an important clean energy, and its utilization rate determines the overall clean energy utilization rate. The conversion efficiency of solar cells on the market is 16%-18%, and the remaining part is converted into the temperature rise of the battery. At 1°C, the power decreases by 0.4%, and the efficiency decreases by 0.5%. Typically, a solar cell loses 5.5% of its actual efficiency due to an increase in temperature. Scholars at home and abroad mainly use water and air as the working medium to cool and dissipate photovoltaic cells or utilize heat. The photovoltaic / thermal (PV / T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B39/00H02S40/44
CPCF25B13/00F25B39/00H02S40/44Y02B10/10Y02B10/20Y02B10/70Y02E10/50Y02E10/60
Inventor 李廷贤蔡一凡王如竹
Owner SHANGHAI JIAOTONG UNIV
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