Factors affecting the electricity consumption of electric faucets - thermal efficiency

Release time:02-23-2019
Abstract:

First of all, a factor that affects electricity consump […]

First of all, a factor that affects electricity consumption is thermal efficiency. So what is thermal efficiency? To put it bluntly, the thermal efficiency is that the original 1 degree can be heated to 30 degrees, but the actual heating is 25 degrees, and the thermal efficiency is about 83%. The higher the thermal efficiency, the more power-saving, the lower the thermal efficiency, the more electricity!
In the same amount of water, the same power, the temperature of the water rises at the same temperature, the amount of heat required is certain, the formula for the electric water heater to absorb heat, Q suction = Cmt, C is the specific heat capacity of water, m is the quality of water (we usually say The weight), t is the temperature at which the water rises, so it is necessary to look at the thermal efficiency of the electric water heater.

According to official data, the thermal efficiency of storage-type electric water heaters generally does not exceed 80%, while the thermal efficiency of thermal water heaters is generally above 96%. In fact, not only these, in the later use process, there are still some factors that will affect the thermal efficiency of the storage type electric water heater, such as scale, due to more calcium and magnesium ions in the tap water, when the water is heated to above 70 degrees, it is easy to produce scale.

The heating rod of the storage type electric water heater is soaked in water for a long time and repeatedly heated, and the scale generated will adhere to the heating rod, and the thicker and thicker over time, thereby affecting the heating effect. Therefore, after the use of water storage type electric water heaters, under the influence of scale and other factors, the thermal efficiency will be greatly reduced, and generally can reach about 70%. The thermal efficiency of the electric water heater is much worse than that of the electric water heater.

The hot water heater generally sets the bath temperature to 35-45 degrees, the maximum use temperature of the water heater is also 55 degrees, and the water is flowing when heating, it is better to choose the heating body to be hydroelectrically isolated, so that there is no scale problem, and safer.

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