gas boiler s dew point

Get acid dew point of flue gas (Journal Article) | OSTI.GOV

In boiler operation heat loss to flue gases amounts to as much as 20 to 25% of the heat input. To recover heat from flue gases economizers are generally used to preheat boiler make-up water or forced draft combustion air. The usually limits the practical lower temperature of the flue

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Prediction of Acid Dew Point in Flue Gas of Boilers ...

Mar 08 2016 · The temperature of flue gas should be controlled to be higher than the acid dew point to avoid fouling and corrosion of heating surfaces in the second pass of boilers. Decreasing the temperature of flue in is one of the most effective ways to improve thermal efficiency enhance electrostatic precipitator efficiency and decrease water consumption of the desulfurization

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What's the best temperature for a condensing boiler to be ...

Jan 22 2019 · For natural gas boilers the dew point is around 55C. In other words the water in the return pipe needs to be 55C or lower or your boiler will not operate at maximum efficiency and potentially ...

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Boiler Efficiency and Sulphur Dew Points

Apr 28 2020 · Principle Oxide of sulphur is Sulphur Dioxide and its dew point temperature is less than 50°C even with large contents of water vapour in the flue gas. Have a look! Figure 1: Sulphur Dioxide dew ...

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Prediction of flue gas acid dew point temperature ...

Jan 01 2020 · Prediction of the acid dew point temperature of flue gas has a great effect on the heat exchangers design or control as recover energy from the boiler exhaust gas. The present study focuses on the prediction of the flue acid temperature as well as its distribution interval which can further help to prevent and resist the low ...

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What is dew point? | Viessmann

With regards to boilers dew point is important as it allows the heat exchanger to work at its most efficient; the condensing of the water vapour releases additional energy into the heating system. The dew point of the byproducts created when burning natural is around 55 .

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What temperature should a condensing boiler be set at ...

The dew point temperature is a measurement that determines the humidity of air and is the temperature at which water droplets form in the heat exchanger. For gas boilers the dew point is around 55 °C. This means that the water needs to be 55 °C or lower for your to maintain its efficiency.

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