Introduce the new energy solar energy, and then ask 2 or 3 questions about solar energy. For class tomorrow.

The concept of solar energy is relatively large. Usually, the scope of solar energy we are talking about is relatively narrow, mainly divided into two types, namely, solar water heater, solar hot water engineering, solar energy heating, solar farming, solar energy application in industry, etc. Photovoltaic mainly refers to solar power generation. Solar energy is only a small part of the new energy we often talk about. The solar energy that is often said mainly refers to photothermal and photovoltaic.

The structure and pictures of solar water heaters are easy to find on the Internet, so I won't repeat them here. Solar energy engineering is mainly divided into three products, one is all-glass vacuum tube collector hot water engineering, the other is flat plate collector hot water engineering, and the other is air source hot water engineering, also known as heat pump hot water engineering.

there are two main issues involved: one is the solar radiation and the other is the average solar thermal efficiency. The amount of solar radiation needs to be measured on the spot. At present, the data about solar radiation commonly used in hot water engineering are obtained from meteorological data, and the average thermal efficiency can also be found on the Internet.

in addition, the research and utilization of air collectors and solar air conditioners are also being carried out in China, especially the application of solar energy in industrial production, which has a large room for future development.

The two problems are:

1. The control system of solar energy hot water engineering is highly intelligent

2. Solar energy hot water engineering is widely used in industrial fields, but at present, the technical aspects of domestic solar energy engineering enterprises are still mixed, and an important issue involved is that there are not enough and uniform data about the design and use of hot water engineering. For example, according to the amount of solar radiation, solar thermal efficiency to determine the size of solar heat collection area.