1. If it is in the north, it should be left empty. Filling it with water will freeze, which can easily freeze and crack the solar panel. or any other covering to prevent it from being exposed to the sun.
2. The thermal performance of all sensors decreased after air drying. The thermal efficiency of the solar collector before air drying meets the requirements of national standards, but the thermal efficiency of the solar collector after air drying does not meet the requirements of national standards.
3. This type of air drying problem will not occur with ceramic solar. This is solar energy integrated into the building, it has the same lifespan as the building and resists air drying. This won't happen with conventional solar power. I'm afraid of air drying.
Detailed information:
1. Universal: The sun shines on the whole earth and has no geographical restrictions, no matter land or sea, mountains or islands. and used, easy to collect and no mining or transportation required.
2. Harmless: The development and use of solar energy will not pollute the environment. It is one of the cleanest sources of energy today, while environmental pollution is becoming more and more serious.
3. Huge: The energy from solar radiation that reaches the Earth's surface each year is equivalent to about 130 trillion tons of coal. Its total quantity is the largest energy that can be developed in the world today.
Why is solar energy usually placed at an angle?
1. If it is in the east-west direction, then the solar energy must be oriented towards the west. The angle of north must be greater, and south and north mustnt be placed at a larger angle. The placement angles are also different. You must first look at the direction of your house.
2. Avoid trees and slopes that block sunlight and choose the best placement location. Depending on local lighting characteristics and house layout. An angle of 60 degrees towards the southeast is then more appropriate, taking into account safety factors. This is determined based on site conditions. It has a flat roof and no obstacles around, facing south, and the included angle can be between 30 degrees and 90 degrees. Assuming the most ideal conditions, avoid tall buildings that block sunlight and face southeast.
3. First of all, consider that the installation is safe, solid and reliable, and that the location should be such that it can receive as much sunlight as possible throughout the day.
4. The heat collecting tube should face south, then 5 to 10 degrees to the west, which is most suitable, because sunlight in this direction is the strongest and the effect is the best.
The reasons why solar energy is generally placed obliquely: 1. The surface area of the water heater is limited, and the sunlight is irradiated at an angle to the ground plane. Therefore, in order. To maximize the illuminated surface, the solar water heater is installed obliquely. 2. Solar water heaters are made of glass tubes and are most susceptible to hail. Generally, hail falls in the direction of Earth's gravity, that is, perpendicular to the ground. A water heater installed at an angle can reduce the affected area. the attack. At the same time, it is less sensitive to vertical impacts. Reduce the effect of force. 3. A simple solar water heater placed at an angle receives the most cheat and at the highest water temperature.
The solar water heater is a device that uses sunlight to heat water. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters which account for the majority of the domestic market share.
The principle of solar water heater
The solar water heater converts solar energy into thermal energy, heating water from low temperature to high temperature to meet people's daily needs. , the use of hot water in production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Evacuated tube solar water heaters are the main ones, accounting for 95% of the domestic market share. Domestic evacuated tube solar water heaters are composed of heat collector tubesur, water storage tanks, brackets and other related accessories. The conversion of solar energy into thermal energy mainly relies on heat collecting tubes. The heat collecting tube uses the principle of hot water floating up and cold water flowing down to cause microcirculation of water to achieve the required hot water.
Classification of solar water heaters
1. Solar water heaters with glass evacuated tubes
The most. those commonly used are all-glass vacuum tube type, especially solar water heaters with auxiliary electric heating function, which use solar energy as the main source and are supplemented by electric energy, enable heating -Solar water works normally throughout the year and around the clock, and the efficiency is still relatively high when the ambient temperatureyou is low. It is safe, energy-saving and environmentally friendly, but it is relatively bulky, the glass tube is fragile, scale is easily accumulated in the tube, and it cannot work under pressure.
2. Flat Plate Solar Water Heaters
Flat plate solar water heaters can be divided into tube plate type, wing tube type, snake tube type. , flat box type and round tube type and heat pipe type. Suitable for use in southern regions where winter does not freeze. It has good integrity, long service life, few defects, can work under pressure, is safe and reliable, has a large heat absorption surface, but has poor thermal insulation performance.
3. Ceramic Hollow Flat Plate Solar Water Heater
Ceramic solar panels are based on ordinary ceramic and have a tridime meshnsional in black vanadium-titanium porcelain. as a surface layer. Thin-walled hollow flat box solar collector. Ceramic solar panels are made of porcelain material as a whole, which is waterproof, has high strength and good rigidity, does not corrode, does not age, does not fade, is not toxic, harmless and non-radioactive. The absorption rate will not fade and provides long-term high performance. High photothermal conversion efficiency and wide range of uses.