When it comes to solar energy, friends will associate it with thermal energy and light energy. By utilizing the photovoltaic effect, light energy can be converted into electrical energy. Can there be any connection between electrical energy and thermal energy?
The answer is yes, using cogeneration technology can generate a combination of photovoltaics, photovoltaics, and heat pumps – photovoltaic heat pump systems.
What is a photovoltaic heat pump system?
Photovoltaic heat pump system is an energy conversion device that combines the conversion and utilization of solar energy with the principle of heat pump energy conversion, and reasonably utilizes environmental energy such as solar energy and electricity to meet the continuous and stable heating, heating, and air conditioning needs.
What are the advantages of the photovoltaic heat pump system?
The photovoltaic heat pump system is not a simple product portfolio, but a high-quality solution that one plus one is more than two.
The system has two major advantages:
1. Reduce the operating temperature of photovoltaic modules, and improve the power generation efficiency of the system;
2. Fully improve the comprehensive utilization rate of solar energy, and improve the efficiency of photovoltaic utilization through peak shaving and valley filling.
The working principle of photovoltaic heat pump system
The photovoltaic heat pump system can use photovoltaic power generation to supply energy to the heat pump for operation, and can also collect heat energy from solar energy to transfer to the heat exchange system of the heat pump, thereby improving the heating efficiency of the heat pump.
In the case of sufficient photovoltaic power supply, the household energy storage system can be increased to store excess electricity generated during the day, so that under ideal conditions, the heat pump can operate independently without the need for mains power.
There are three types of photovoltaic heat pump systems
Based on the different ways in which the system utilizes solar energy, they can be simply divided into three types:
The first type only utilizes solar heat, which is absorbed by a collector and transferred to the heat exchange system of the heat pump, thereby improving the efficiency of outdoor heat energy utilization by air source heat pumps;
The second method is to use only solar photovoltaics to generate electric heating pumps through photovoltaic modules;
The third method utilizes both solar photovoltaic and photothermal assisted heat pump operation.
Application scenarios of photovoltaic heat pump systems
With the maturity of research and development technology, the application fields of photovoltaic heat pump systems are becoming increasingly widespread.
Common application scenarios include heating, domestic hot water, clothing drying, constant temperature swimming pools, seawater desalination, commercial hot water cleaning needs, pre heating of industrial water, and so on.
