Recently, many friends have inquired about solar heating, and I found a problem. Most people don't understand the true meaning of emptying, and everyone is asking if solar energy is used for heating during the day and electricity at nightLet's talk about this issue today.
Or take a 100 square meter house as an example, 100 square meters of configuration is 300 collector pipes and a three-ton water tank, during the day our collector absorbs heat to provide heating, but also will store excess heat in the tank, after the sun sets, the hot water in the collector will also be discharged into the water tank, due to the low temperature in the northern region in winter, the sunshine time is short, the collector can not heat the water to one, but it is no problem to heat to seventy or eighty degrees. When the water temperature is lower than 30 degrees, normal heating can not be guaranteed, we calculate the temperature difference according to the temperature of the water tank 70 degrees, a ton of water is equivalent to one kilowatt-hour of electricity for each degree of increase, and the heat energy stored in our water tank is equivalent to 120 degrees of electricity. According to the heat insulation of the house, the heat required per square meter per hour is 50 to 100 watts, and the heat of the water in the water tank can be maintained for 12 hours of normal heating according to the heat preservation effect, and the emptying heating can fully meet the heating needs at night without the need for electric auxiliary heating.
A friend said that in winter, the sun rises at seven o'clock and sets before six o'clock, with a difference of nearly 14 hours in the middle, and the other two hours. Our home insulation is particularly poor, but the end of heating is floor heating, the heat storage capacity of floor heating is very strong, even if it is not heating after the sun sets at five o'clock, the heat stored in floor heating can also be maintained until eleven or twelve o'clock in the middle of the night, and the use of floor heating is the end of our standard configuration to maintain night heating is no problem;If our home is particularly poorly insulated and the heating end is a radiator, the number of collector tubes and the volume of the water tank will be increased according to the actual situation to store more heat.
When it comes to floor heating, let's say more: not only solar heating uses floor heating to save energy at the end, but also air energy, gas wall-hung boilers, and traditional boilers as heating equipment, and floor heating are the most energy-saving at present. Low-temperature heating not only saves energy and is efficient, but also can better protect the life of heating equipment and extend its service life. Get in touch with nature