Generally, in summer, the hot water temperature reaches 38 degrees, and it takes about 6 or 7 minutes to rise one degree. In winter, the hot water temperature reaches over 45 degrees, and it takes about 6-7 minutes. 10-12 minutes to go up one degree.
The electrical heat per kilowatt hour is 860 K and the conversion rate is 92%. If 200 liters of water goes from 20 degrees to 70 degrees and the temperature increases by 50 degrees, the required power consumption is 200. *50/(860*92%) = 12.6 degrees. Electricity, using a 1.5 kW electric heater requires time: 12.6/1.5 = 8.4 hours.
It takes an electric heating time of 2.5 kW: 12.6/2.5 = 5 hours. If 70 degree water is exposed indoors at 10 degrees, it will become cold in about 20 minutes if it is in a water tank. , the temperature of a good water tank will not drop more than 10 degrees 24 hours a day, and the bestTheir water tank will not drop more than 5 degrees.
Detailed information:
Notes:
1. Even in harsh winter there is no water. in the water tank Never fill with water immediately after air drying. Since the temperature inside the vacuum tube can reach about 2500°C when air drying, the water in the water tank should be filled before sunrise or half an hour after sunset. to prevent the tube from exploding.
2. If an auxiliary heat source is installed, the auxiliary heat source device and heat exchanger should be checked regularly to see if they are functioning properly. For auxiliary heat sources heated by electric heating pipes, you must ensure that the protective device conbe leaks works reliably before use, otherwise it cannot be used. When using the electric auxiliary heater, special attention must be paid to filling the water. The volume of water in the water tank should not be less than 50% to avoid dry burning without water.
3. When taking a bath, pay special attention to unplugging the power plug, and it is strictly prohibited to use it when the power is on.
4. When installing heating tapes, be sure to choose products of acceptable quality to ensure normal use and reduce hidden dangers. When using the heating tape, be sure to turn it off promptly after defrosting, and try not to use it when the voltage is unstable.
Baidu Encyclopedia - Solar Energy
Baidu Encyclopedia - Heat Calculation Formula
How to choose the capacity of solar water heater
< p>The capacity of solar water heatersis around 80 liters to 620 liters. Through the conversionof sunlight, solar water heaters can provide us with hot water. water to meet our needs. For daily needs, you don't need to use too much electricity to produce hot water. It can be said that solar water heaters are a very eco-friendly and energy-saving product.
Solar water heater is a heating device that converts solar energy into thermal energy, heating water from low temperature to high temperature to meet requirements.Suitable for use of hot water by people in life and production. Solar water heaters are divided into vacuum tube solar water heaters and flat panel solar water heaters based on their structural shapes. Tube solar water heatersvacuum sealers are mainly used, accounting for 95% of the domestic market share.
Home evacuated tube solar water heaters are composed of heat collecting tubes, water storage tanks, brackets and other related parts. The conversion of solar energy into thermal energy mainly relies on vacuum tubes which use the principle that hot water is used. floats and cold water sinks, causing microcirculation of water to obtain the required hot water.
How much water can a 58*180 solar tube hold?
The bigger the better when it comes to solar energy. First, the larger the capacity, the higher it is. the price. Secondly, if the capacity is too large, it cannot be used every day, so a large amount of hot water is also wasteful, so the choice of solar energy should be determined according to the actual usage.it, as the purpose of use. hot water, number of people using it, etc. Generally, if used for bathing and washing face, 30-40L/person is enough (select according to personal bathing situation, etc.). it is recommended to choose 50L. If you want to use solar hot water to wash vegetables, dishes, clothes, etc. in winter you should go bigger!
Holds 1 ton to about 1 and a half tons. tons of water. Home solar water heaters are generally 30 tube home solar water heaters with water capacities of 300 liters and 400 liters. Depending on the size of the water bucket, they are suitable for 5-8 people to bathe.
Solar water heaters convert solar energy into thermal energy and heat water from low temperature to high temperature to meet the hot water usage by people in life and workduction.