Power calculation of boiler in hotel system

A, the calculation formula of electric boiler used in hot water system

Daily water consumption (ton) * temperature difference (required hot water temperature-cold water temperature) * 1. 163 (thermal coefficient)/working time = power of electric boiler.

Second, the electric boiler heating area ratio formula

Heating area * heat load per square meter = power of electric boiler (heat load per square meter in northwest China 120- 150W)

Note: 1. As a hot water system, electric boiler is not directly related to the number of sprays, but only to the daily water consumption (because the daily water consumption is calculated according to the number of sprays and passenger flow).

2. As a heating system, the electric boiler is not directly related to the number of radiators, but only related to the heating area and thermal insulation of the house. Radiators are also distributed according to the heating area.

Three. At present, according to the service provided by customers, the analysis is as follows:

The heat preservation water tank is 3.5 tons, and the tentative daily water consumption is 3.5 tons. According to the calculation formula, 3.5 tons *(50- 15) degrees * 1. 163/8 hours = 18kw.

There is a house of 60 square meters, 60 *120 = 7kw60 *150w = 9kw.

To sum up, a 25kw or 27kw electric boiler is enough. At present, 30kw electric boiler is not suitable for small size, so according to the current use situation, 30kw electric boiler can be used.