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How to select the type of hot water boiler and calculate the operating cost

2021-04-25 09:10    page view:

Guide: Xinli hot water boiler can be used for heating, bathing and domestic water in hospitals, hotels, schools, factories, etc. Due to the imminent domestic environmental protection issues, gas-fired hot water boilers have become the first choice for heating and bathing.

Xinli hot water boiler can be used for heating, bathing and domestic water in hospitals, hotels, schools, factories, etc. Due to the imminent domestic environmental protection issues, gas-fired hot water boilers have become the first choice for heating and bathing.

Gas hot water boiler

1. Gas-fired hot water boiler selection

  1. Calculation formula for heating heat consumption:

  Heating standard: 100w/m2

  Heat consumption formula = 100×total area×860/1000

  2, the calculation formula of heat consumption required for 1t water to heat up 40℃:

  1T×1000L×40℃=40000kcal

  Example: For example, if the user needs 5t of water per hour, the heating value of the boiler power required is

  5tX40000Kcal=200000Kcal.

  3. Calculation formulas applicable to various heat loss (such as Oike, etc.):

  Q=mc△t=? (This question mark represents the weight of water in tons) X1000LX3℃=?

  Example: A 10t large pond is calculated at a temperature drop of 3℃ per hour:

  10T×1000L×3=30000kcal/h. The resulting heat loss per hour is 30,000 kcal, and the heat loss will be added back later.

  To sum up, a 1 ton gas-fired hot water boiler can provide a heating area of 6000-8000 square meters and can be equipped with 60 shower heads.

2. Operating Costs of Gas-fired Hot Water Boiler

  Among the operating costs of boilers, fuel costs account for the largest proportion, fuel costs = fuel consumption * unit price

  Fuel consumption of gas-fired hot water boiler = boiler heating capacity ÷ thermal efficiency ÷ fuel calorific value

  Take a 1 ton gas-fired hot water boiler as an example, the fuel consumption = 60 million Kcal÷92%÷8400Kcal/m³=78m³

  1 ton gas-fired hot water boiler fuel cost = 78m³*3 yuan/m³=234 yuan (the unit price of natural gas is calculated at 3 yuan/m³)

  Note: The above calculation is the fuel cost when the boiler is operating at full load. In most cases, the boiler is not operating at full load, and the actual operating cost of the boiler is less than this value. If you need to know the actual cost, please consult our company.

Xinli Boiler can provide boiler selection scheme design, technical consultation, installation, commissioning and other services. Welcome to consult and discuss cooperation.

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