How To Select Heat Pump For Water Heating in A Swimming Stadium?

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HAYPOOL Heat Pump Water Heaters are widely used in hotels, factories, schools, hospitals, Swimming Stadium,entertainment and leisure, villas, etc.

The Heat Pump Hot Water Unit uses the reverse Carnot cycle principle to make the working fluid undergo a phase change through the movement of the compressor. Using this repeated cycle phase change process, it absorbs heat from the outside (air, water, etc.) and releases it to the cold water. Then the cold water is gradually heated, and the hot water is sent to the user through the water circulation system. HAYPOOL Heat Pump Water Heaters are widely used in hotels, factories, schools, hospitals, Swimming Stadium,entertainment and leisure, villas, etc. Here, in this article, the method for the selection of a heat pump water heating system for a Swimming Stadium will be introduced..

A. Description of the system's maximum daily water consumption and water tank selection
1.  Application: Swimmer shower hot water. (Specific requirements vary from swimming pool)
2.  Water Amount Calculation: Swimming Stadium shower hot water (average value): 50L/person*day (the average value is calculated according to the simultaneous using of all Swimmer)
Remarks: Hot water resources are precious, and the design of hot water amount is only enough for Swimmer to bathe. Please save water.

B. Examples
LaiEn Swimming Stadium in ChongQing City China

1. Water tank calculation
Background information of The Swimming Stadium: The Swimming Stadium has a total of 800 swimmers evry day . The Swimming Stadium requires sanitary hot water for swimmers to shower and wash their faces. Taking into account the Swimming Stadium's planning, development and system standardization, the number of swimmer is expected to be 1,000 people, and the number of people for shower and face washing is expected to be 1000 people. The specific method of the amount of water consumption are shown in the following table:

Hot Water Demand Occasion

Hot Water Users (person)

Water Consumption Amount(L)

Total (T)


Student Shower Hot Water










 Tank selection





2. Heat Pump Selections
Considering the water demand, local climate conditions and the capacity changes of the heat pump water heaters under the different local climate conditions, the total amount of domestic sanitary hot water required by the project is up to 50 metric tons. In winter, the lowest ambient temperature is 5℃, and the temperature of tap water is about 10℃. Then the heat required to heat up 50 metric tons of tap water from 10°C to 55°C is calculated with the formula below as:  q=CM△T=1.163*1(ton)*(55-10)=52KWH
Then the heat required by the heat pump to heat 50T water is: Q=50*52=2600KWH
According to the principles and characteristics of air source heat pumps, the lower the outdoor temperature, the lower the heat output. Therefore, when selecting the heat pump, the heat output of the heat pump should be corrected according to different ambient temperatures. Taking into account that when the ambient temperature is low, the capacity is reduced. At this time, the heating capacity of 3 unit of HAYPOOL DPHP250S-X is 80KW,  The required working time is:
According to the above calculation, it is designed to use 3 unit of  HAYPOOL DPHP250S-X.