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0.7mw electric boiler heating operation cost

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Winter is coming, and the heating company has begun to inspect and start the trial operation of the heating equipment. Electric boilers are the mainstream equipment of "coal-to-electricity" in my country. For many users who use electric boilers for heating for the first time, the operating costs of boilers are very important data. How to calculate the operating costs of electric boilers for heating in winter? Fangkuai boiler technical engineer said so.

The formula for calculating the heating operation cost of one square meter of electric boilers in the whole heating period is: heat load per unit area × heat load coefficient × daily electric boiler working time × number of days in the heating period × unit price of electricity = heating cost of electric boiler wattage unit area throughout the heating period.


electric boiler heating operation cost


The operation of electric boilers is very intelligent, and the boiler load can be adjusted according to the actual situation of users, so as to avoid the waste of electric energy. Electric boiler heating operation status can be divided into the following categories:
       1. When the user is at home for a long time, the electric boiler heating furnace runs 24 hours a day without interruption. In order to save operating costs, the heating temperature of the electric boiler at night is appropriately lowered.
       The heating cost of the electric boiler is: 0.06kw/square meter × 0.6 × 10 hours × 140 days × 0.48 yuan/degree = 24.2 yuan/square meter.

       2. Office workers and electric boiler users are only at home at noon and at night, and the electric boiler heating furnace runs intermittently in 3 periods.
       Electric boiler heating cost is: 0.06kw/square meter × 0.6 × 6 hours × 140 days × 0.48 yuan/degree = 14.5 yuan/square meter.

       3. The office has a 5-day working system. The electric boiler is only heated from Monday to Friday. The electric boiler heating furnace runs during the day, and the electric boiler runs in an antifreeze state during the rest of the time.
       Electric boiler heating costs are: 0.07kw/square meter × 0.6 × 6 hours × (140 days × 5/7) × 0.48 yuan/degree = 12.1 yuan/square meter.

       4. In schools, electric boilers have 35 days of vacation in addition to the 5-day working system per week, and the heating time of electric boilers is relatively short.
       Electric boiler heating cost is: 0.07kw/square meter × 0.6 × 6 hours × [(140 days - 35 days) × 5/7] × 0.48 yuan/degree = 9.1 yuan/square meter.

       Using the above calculated value × the actual heating area (usable area) of the room, the operating cost of the electric boiler can be roughly calculated for the entire heating period. or kitchen), the actual heating area of ​​the electric boiler will be reduced accordingly, and the heating cost of the electric boiler will be reduced accordingly.

Note: 0.07kw/square meter is a standard energy-saving building that requires electric boilers to have a heating load of 55-70w/square meter in winter;

       0.48 yuan/kWh is the electricity unit price of residential electric boilers in Beijing in 2000. If the peak-valley electricity price is implemented, the operating cost of electric boilers can be calculated at an average of 0.35 yuan/kWh;

       The heat load coefficient of 0.6 means that the heat load of indoor demand is small at the beginning and end of the heating period, and the heat load of indoor demand is relatively large in the coldest period of the heating period, and the average value is 0.6;
       Actual heating area: (building area × 0.78) - the practical area of ​​the room that does not need heating.

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