Solar energy can be used for heating, including general interior heating and underfloor heating. There are two ways to heat solar energy: one is to use a solar water heater system to convert solar energy into thermal energy, and then transport the hot water to the heating equipment through pipes for heating, the other is to use solar power generation system; to convert solar energy into electrical energy, it is then used for heating via electric radiators or underfloor heating.
For underfloor heating, solar heating has the following advantages over traditional gas, electric and other heating methods:
1. Environmental protection and energy saving: Solar energy is clean. It uses energy. , does not produce pollutants and is respectful of the environmentirony; and it does not require the consumption of other energy sources when acquiring and using solar energy, which can save energy consumption.
2. Economical and affordable: Although the installation cost of solar heating equipment is relatively high, in the long term, the operation and maintenance costs of solar heating are lower than those of traditional heating methods, which can bring benefits economic benefits. .
3. Stable and reliable: Solar energy is a stable source of energy. Although weather changes have a certain impact on solar energy collection, the solar heating system can adapt adaptively according to different weather conditions to ensure. heating efficiency. Stability and reliability.
It should be noted that the effect of solar heating is affected by factors such as the situationgeography, climatic conditions, quality of equipment, etc. Therefore, before selecting solar heating equipment, a complete understanding and evaluation is necessary.
Answer C
Analysis In fact, at a glance, you can confirm that there is an error between CDs It is also the same thing, it that is, there can only be one correct angle between the two images. The height of the sun at noon on the spring and autumn equinoxes = 90° - local latitude. The height of the noon sun in Lhasa during the spring and autumn equinox = 90°-29°36'=60°24', then the angle of the heat collecting plate should be 90°-60° 24'=29°36'. The simplest thing to do is to remember that the angle of inclination of the heat collecting plate during the spring and autumn equinoxes is equal to the local latitude.