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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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general exhaust temperature of boiler furnace

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θrion Gas Fired Steam Boiler

Capacity:1-20t/h

Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.

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Gas(oil) Fired Integrated Hot Water Boiler

Capacity:0.7-14MW

Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.

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H6 Gas Fired Hot Water Boiler

Capacity:0.7-2.8Mw

Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

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T7 Vacuum Hot Water Boilerr

Capacity:2.8-7.0Mw

Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.

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V6 Gas Fired Hot Water Boiler

Capacity:99Kw

Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.

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Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

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  • Combustion Analysis Basics - TSI.com

    Boilers, furnaces and engines are important users of fossil fuels. The general relationship between the O 2 supplied and the concentration of CO2 and CO in the exhaust is illustrated in Figure 5. As the air level is increased and approaches of the theoretical air, the con- Exhaust Gas Temperature and Supplied Combustion Air TemperatureGet Price

  • What temperature should a condensing boiler be set at

    The maximum temperature that we recommend you set your radiator output to is 80 °C. If you have a conventional boiler system, your water cylinder will have its own thermostat. This is usually fitted on the side of the tank. You should set the temperature between 60 and 65 °C but for maximum efficiency, it should be set to around 60 °C.Get Price

  • 1.4 Natural Gas Combustion

    1.4.3 Emissions3-4 The emissions from natural gas-fired boilers and furnaces include nitrogen oxides (NOx), carbon monoxide (CO), and carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), volatile organic compounds (VOCs), trace amounts of sulfur dioxide (SO2), and particulate matter (PM). Nitrogen Oxides -Get Price

  • EPCB Boiler | How to Reduce The Boiler Operation Cost

    3 Things to Know About Your Furnace's Exhaust FlueGet Price

  • Thermal Design of Economizer for Waste Heat Recovery Boiler

    reverberatory furnace corresponds to the aluminium pouring point temperature 650 – 750 °C. In this scenario, at least 40% of the energy input to the furnace is still lost as waste heat. This waste heat can be use for various purposes .Combustion air preheat can increase furnace efficiency byGet Price

  • Rules and Regulations for Boiler and Pressure Vessel

    (a) Power Boiler - A boiler in which steam or other vapor is generated at a pressure of more than l5 psi. (b) High Pressure, High-Temperature Boiler - A boiler in which water, oil, or other fluid is heated and intended for operation at pressures in excess of l60 psi and/or tem peratures in excess of 250 degrees Fahrenheit.Get Price

  • 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

    Temperature indicator Thermocouple, liquid in Fuel temperature, flue gas glass temperature, combustion air temperature, boiler surface temperature, steam temperature Draft gauge Manometer, differential Amount of draft used pressure or available TDS meter Conductivity Boiler water TDS, feed water TDS, make-up water TDS.Get Price

  • Boilers - University of Alabama

    temperature rises at a rate of 0.56°C (1°F) for each heat input of 2.095 kJ/kg (1 Btu/lb) If we take water at 0°C (32°F) and we add 419 kJ/kg (180 Btu/lb) then we will increase the temperature of the water by 100°C (180°F) This rise in temperature can be detected and is called Sensible Heat (Specific Enthalpy - Water)Get Price

  • CHAPTER TWO: Boiler Operation Maintenance & Safety Study …

    • Low-pressure boilers are designed to withstand a maximum of 15 psig steam or a M.A.W.P. 160 psig water. The boilers can be classified according to the following criteria. According to flow of water and hot gases: 1. Water tube. 2. Fire tube. In water …Get Price

  • Chapter 2 Boiler 101: typical NYC residential heating system

    temperature of the boiler water above 212°F and producing steam. This steam rises throughout the building to the room radiators. A steam system does not have a circulating pump and the burner can cycle on and off either to keep the idling boiler at approximately 180°F, or to increase boiler temperature to produce steam needed to heat the rooms.Get Price

  • Coal-Fired Boiler - an overview | ScienceDirect Topics

    Coal-fired boilers are mainly operated at either subcritical or supercritical conditions. From a thermo-physics perspective, two phase mixtures of water and steam are replaced by a single supercritical fluid when the boiler pressure increases above the critical pressure of 22.12 MPa and the corresponding saturation temperature of 374 °C (Shen and Cheng, 2004).Get Price

  • Boiler Energy Efficiency Measures

    A low temperature (e.g. below 80-85 C) will cause colder feed water to enter the boiler thus increasing the fuel cost due to the need for more heating for evaporation. An overheated hot well may cause evaporation of water at the suction of feed pump (e.g. cavitation) and cause vapor lock in the feed pump and loss of suction.Get Price

  • What is a Boiler and How Does it Work? | RealPars

    Aug 19, 2019 · The design is fairly similar to a fire-tube boiler, but instead of the furnace heating fire tubes to heat water in a tank, the furnace heats water tubes inside the furnace. In the same way, a fuel source is burned in the furnace, causing the water tubes inside to heat up. Once again, when the water is boiled, steam is generated and moved Get Price

  • Waste Heat Recovery - Energy

    Table 14 ­Basic Oxygen Furnace Off­gas Composition 40 Iron/Steel Production 42 In Aluminum Refining and Melting 43 Process Exhaust Gases in Metal Casting 45 Boiler Exhaust Gases 48 Table 19 ­Unrecovered Waste Heat and Work Potential from Ethylene Furnaces 49 Exhaust Gases 53 Table 21 ­Unrecovered Waste Heat in Different Temperature Groups 55Get Price

  • Marine Steam Boilers Steam and Water System

    The feedwater is pre-heated in order to increase the efficiency of the plant. The circulating water to the exhaust gas boiler heats the feed water and the three-way valve on the inlet to the heat-exchanger controls the temperature. The economizer inlet temperature must never fall below 135°C to avoid corrosion on the economizer tubes.Get Price

  • PROCESS DESIGN OF STEAM BOILERS (PROJECT …

    g. Feedwater inlet temperature specified on the data sheet. h. Purity of produced steam as specified in the project specification in ppm mass (mg/kg) with consideration of ppm mass (mg/kg) of total solids in the boiler water. The boiler manufacturer shall state the maximum TDS in the boiler water at which the required steam purity can be obtained.Get Price

  • How to Destroy a Boiler -- Part 1

    Boilers rely on the water to protect the steel boiler tubes from the temperatures in the furnace which greatly exceed the melting point of the tube material. A buildup of deposits inside the tubes will produce an insulating layer which inhibits the ability of the water to …Get Price

  • Boiler – Fundamentals and Best Practices

    Exhaust Temperature (o F) (o C) Chemical Oxidation: 1350 - 1475: 730 - 800: Annealing furnace: 1100 - 1200: 590 - 650: Fluidized-bed combustion: 1600 - 1800: 870 - 980: Natural-gas fired heating appliance with draft hood: 360: 182: Liquefied-petroleum gas-fired heating appliance with draft hood: 360: 182: Gas-fired heating appliance, no draft hood: 460: 238: Glass melting furnaceGet Price

  • Boiler Combustion | CleanBoiler.org

    Selective non-catalytic reduction involves the injection of a NOx reducing agent, such as ammonia or urea, into the boiler exhaust gases at a temperature of approximately 1400-1600°F. The ammonia or urea breaks down the NOx in the exhaust gases into water and atmospheric nitrogen. Selective non-catalytic reduction reduces NOx up to 70%.Get Price

  • Biomass gasification and syngas combustion for greenhouse

    However, a very high ER can lower the adiabatic flame temperature and reduce the efficiency of the heat exchanger from the boiler or the furnace in which combustion occurs. It was noted that the ER from the primary air inlet alone varied between 1.45 and 2.46, with an average of 2.06, indicating that the secondary air inlet may not be required.Get Price

  • Boiler Gauges, how to read the temperature & pressure

    Heating boiler gauges: this article describes the combination pressure & temperature gauge found on most hydronic (hot water) heating systems. The boiler gauge gives helpful temperature or pressure readings that tell us if the boiler is operating normally. The same pressure and temperature readings at a boiler can help diagnose problems such as TP valve leaks, cold …Get Price

  • Boiler Gauges, how to read the temperature & pressure

    Some fan-assisted, non-condensing furnaces and boilers, installed between 1987 and 1993, may be vented horizontally through high-temperature plastic vent pipe (not PVC pipe, which is safely used in condensing furnaces).Get Price

  • 3 Things to Know About Your Furnace's Exhaust Flue

    Boiler Gauges, how to read the temperature & pressure Get Price

  • Boiler Combustion | CleanBoiler.org

    Selective non-catalytic reduction involves the injection of a NOx reducing agent, such as ammonia or urea, into the boiler exhaust gases at a temperature of approximately 1400-1600°F. The ammonia or urea breaks down the NOx in the exhaust gases into water and atmospheric nitrogen. Selective non-catalytic reduction reduces NOx up to 70%.Get Price

  • Gas-Fired Boilers - Code Compliance Brief | Building

    Boilers are typically between 75% and 96% efficient in the primary process of heating the water, but any un-insulated heating water piping will lower the overall efficiency of space heating. In addition to the boiler unit, a gas-fired boiler requires a feed water supply, a boiler loop/heat delivery system (e.g., hydronic radiators or fan coil Get Price

  • Service Manual - High efficiency Water Heaters, Boilers

    can be based on boiler outlet water temperature, boiler return water temperature or system supply temperature, depending on the parameter setting. Sequence of operation Table 1-1 shows control module normal sequences of operation for space heating and DHW operation. The combined operation sequence is for a typical application,Get Price

  • What is a safe flue temp? What is too hot? | Hearth.com

    bustion in boiler furnace: 1.Air supply- Need adequate air for complete combustion. The rating (capacity) of a boiler can be 3.Temperature- all combustion reactions proceed and fly ash are carried up with the exhaust. Particles trapped up in boiler, economizer, airGet Price

  • Recommended oil furnace temperature settings? | Terry Love

    Jul 14, 2017 · If it's an oil fired boiler the 130F lo-temp setting is too low, but if it's gas it's fine (just don't take it any lower.) With an oil boiler firing at 130F there will be corrosive condensation in the flue, and corrosive exhaust condensation on the boiler's heat exchanger plates, taking a toll on chimney & boiler lifespan.Get Price

  • Furnaces and Boilers | Department of Energy

    Dec 17, 2019 · Generally, the lost heat is 6% of the heat input into the boiler furnace. The heat loss of exhaust gas increases by 0.5% when the temperature of exhaust gas increases by 12-15%. Therefore, exhaust gas temperature is one of the most important indicators of boiler operation. The following are the possible reasons for the increase in exhaust gas temperature in the …Get Price

  • 1.4 Natural Gas Combustion

    Heating boiler gauges: this article describes the combination pressure & temperature gauge found on most hydronic (hot water) heating systems. The boiler gauge gives helpful temperature or pressure readings that tell us if the boiler is operating normally. The same pressure and temperature readings at a boiler can help diagnose problems such as TP valve leaks, cold …Get Price

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