flue gas condensation question Heating Help: The Wall

flue gas condensation, is it something visible or audible,(like a waterheater on cold start does) or is it something that just IS taking place when the return water temp is lower than the dew point of the flue gas, but we cant see it.

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Recovery of Water from Boiler Flue Gas Using Condensing

@article{osti_1084027, title = {Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers}, author = {Levy, Edward and Bilirgen, Harun and DuPont, John}, abstractNote = {Most of the water used in a thermoelectric power plant is used for cooling, and DOE has been focusing on possible techniques to reduce the amount of fresh water needed for cooling.

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Flue Gas Dew Point Temperatures - Engineering ToolBox

Flue gas dew point temperatures and the condensation of water vapor Sponsored Links Flue gas dew point temperature is the temperature where condensation of water vapor in the flue gas starts.

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Condensation - Simple English Wikipedia, the free encyclopedia

Condensation of water is when water changes from gas to a liquid or crystal shape. Any gas can condense, either because the temperature is dropping or the pressure is increasing. In either case the pressure of the condensing gas is higher than the vapor pressure of the gas, at that temperature).

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flue gas is boilers | Water Tube Boilers suppliers

Flue-gas condensation Wikipedia. 2019-2-7 · Flue gas condensation is a process, where flue gas is cooled below its water dew point and the heat released by the resulting condensation of water is recovered as low temperature heat.. Cooling of the flue gas can be performed either directly with a heat exchanger or indirectly via a condensing

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Condensing vs. Non-Condensing Boilers: What's the

The one major factor of non-condensing boilers is that it should not condense the flue gases or have the condensate reach the pressure vessel to cause corrosion. This problem usually occurs when the flue gases reach the dew point when cooling, which can occur in colder climates and during cooler seasons.

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Fuels Flue Gases and Average Dew Points

Combustion Testing - Combusting testing of fuel oil and gas burners; Flue Gas Dew Point Temperatures - Flue gas dew point temperatures and the condensation of water vapor ; Fuels - Combustion Air and Flue Gases - Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more

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Water Heater Condensation | How to avoid Problems due to

High efficient heaters, including condensing models, are utilizing the heat from flue gases and transfer it to water. As the temperature of the flue gases gets reduced, the water vapor turns into liquid - condensate. It is very simple to identify if there is condensation or not. First, if there is some water under the heater, wipe it up.

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Flue Condensation Problems | HVAC Heating & Cooling

Flue Condensation Problems - This picture shows a furnace flue with condensation problems. Flue condensation problems are caused by hot gases cooling too quickly in the flue. As the hot gasses, cool moisture in the gases condenses and start dripping back down the flue.

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New correlation predicts dewpoints of acidic combustion

The correlation can accurately predict flue-gas acid dewpoint temperatures over wide ranges of acid and water-vapor concentrations in oil and gas operations. Condensation, corrosion. Acid dewpoint

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flue gas condensation question Heating Help: The Wall

flue gas condensation, is it something visible or audible,(like a waterheater on cold start does) or is it something that just IS taking place when the return water temp is lower than the dew point of the flue gas, but we cant see it.

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Is a high efficiency, condensing gas boiler the best

Aug 13, 2018· Condensation begins when roughly 90% of the heat contained in flue gas is harvested. At this point, flue gas temperatures drop and as the flue gas cools, condensate forms in the heat exchanger. Condensing boilers cool the exhaust gas so much that they can be vented with CPVC or Polypropylene (plastic) pipe, instead of the steel venting required

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Condensing boiler - Wikipedia

The condensate expelled from a condensing boiler is acidic, with a pH between 3 and 4. Condensing boilers require a drainpipe for the condensate produced during operation. This consists of a short length of polymer pipe with a vapour trap to prevent exhaust gases from being expelled into the building. as the cooler flue gases produce

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Acid Dew Point Temperature for 5 Typical Acid Gases

Acid Dew Point Temperature for 5 Typical Acid Gases [ back to full computer program list] Thermal efficiency of combustion systems is increased with the reduction in the exit Flue Gas temperature, however to low of an exit temperature could result in the condensation of Acid Gases that could corrode metallic surfaces in contact with those acids.

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New Technology Will Recover Heat &Water from Flue Gas

Condensing flue gas moisture by simply removing heat in a heat exchanger is a problem because a large surface area is required and equipment corrosion often occurs because of the acidic condensate.

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Condensation - Simple English Wikipedia, the free encyclopedia

Condensation of water is when water changes from gas to a liquid or crystal shape. Any gas can condense, either because the temperature is dropping or the pressure is increasing. In either case the pressure of the condensing gas is higher than the vapor pressure of the gas, at that temperature).

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What Causes Furnace Flue Condensation? | Home Guides | SF Gate

Size Matters. A flue that is too large allows too much air to circulate, making it difficult for the warm gas and vapors exiting the furnace to create a strong updraft up and out of the vent.

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What is FLUE-GAS CONDENSATION? What does FLUE-GAS

Aug 13, 2017· Flue gas condensation is a process, where flue gas is cooled below its water dew point and the heat released by the resulting condensation of water is recovered as low temperature heat.

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Fuels Flue Gases and Average Dew Points

Combustion Testing - Combusting testing of fuel oil and gas burners; Flue Gas Dew Point Temperatures - Flue gas dew point temperatures and the condensation of water vapor ; Fuels - Combustion Air and Flue Gases - Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more

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READER FAVOURITE FROM HPACS ARCHIVE: Do Not Go Unprotected

Mar 01, 2014· A bypass circulator has been added to help boost boiler inlet temperature. The boiler is still operating with flue gas condensation Figure 4 A system where boiler inlet temperature is sensed by the mixing device. Boiler inlet temperature is now maintained above 130F to prevent sustained flue gas condensation.

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