Economiser: Economiser ( Sometimes Called ) is the Energy improving that helps to reduce the cost of operation by saving the fuel The in tends to make the system more energy efficient In are generally which are designed to with the fluid generally water
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1 Boiler economizers are heat exchange devices with finned tubes that heat a liquid sometimes water up to however sometimes doesn't exceed the boiling purpose of liquid We can manufacture three types of boiler economizer bare tube economizer H finned tube economizer and spiral finned tube economizer
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· The transfers to to produce super saturated steam and is generated by combustion of intermediate fuel oil (IFO) The utility operating parameters are shown in Table 1 The fuel pipe is connected with four burners for continuous fuel supply and average flow rate is in range of 8 Lmin 1 to 11 Lmin 1
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condensing improve the thermal efficiency of by recovering sensible and water vapor latent from exhaust In addition to improving thermal efficiency condensing also have the potential to act as control for emissions of particulates SO{sub x} and air toxics
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The condensing economizers are mainly used in natural gas fired thermal power plants as they have the ability to improve the waste heat recovery by cooling the flue gas below its condensation temperature which is about 80 o F (25 o C) This particular variant of economizers result in greater efficiency of around 10 to 15% and more economical operation as it reclaims both sensible heat from the flue gas
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Economizer (heat exchanger) is the boiler accessory used to recover the heat of flue gas that leaving the boiler by heating feed water The efficiency of a boiler can be increased with an economizer 60C rise in feed water temperature with the help of economizer can save up to 1% of fuel
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· In a system an captures the of the and transfers it to the feed water The process is simple As the exits the it enters an with finned The finned absorb the and raises the temperature of the feed water lowering the needed energy input Why Add an
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Introduction is part of the heating area of to the feed water into saturated water inside the ducting due to its absorption of low temperature the reduces the exhaust temperature of save the energy improve the efficiency so called as
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· H type fin tube waste heat recovery (also called The concept of The is the heating surface in the tail flue of the that heats the boiler feed water into saturated water under the pressure of the steam drum Because it absorbs relatively low temperature it reduces the exhaust temperature and saves It improves energy and
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2020-11-21 0183; In a system an captures the of the and transfers it to the feed water The process is simple As the exits the it enters an with finned The finned absorb the and raises the temperature of the feed water lowering the needed energy input
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The flue gas condenses moisture and allows the use of latent heat and sensible heat for heating the water Condensing economizer can help improve efficiency of the boiler by 10-15% It can be used only when the flue gas does not have sulphurous nitrous or particulate corrosive matter Working principle of the economizer An economizer is a tubular heat exchanger used to preheat the boiler feed water
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The economizer is a device installed in the lower part of the flue of the boiler to recover the waste heat of the exhausted flue gas and the boiler feed water is heated to the heated surface of the saturated water under the steam drum pressure because it absorbs the heat from the high temperature flue gas and cools down the exhaust gas temperature of the flue gas saves energy and improves efficiency so it is
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· The modern economisers consist of an array of finned tubes connected by headers at each end to effect flow and return of the water extracting heat from the flue gases They can be very effective with clean fuels but do not lend themselves well to cleaning being easily fouled up between fins
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Tetragonum cast iron stream line form pipe Name code name Unit Data pipe length L mm 1500 2000 2500 3000 pitch of fin N Pic 55 75 95 115 heating area H m2 218 295 372 449 flow cross-section F m2 0088 0120 0152 0184 theory pipe inner diameter =56mm G Kg 5910 7762 9614 11468 Weight =60mm 5517 7237
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Tetragonum cast iron stream line form pipe Name code name Unit Data pipe length L mm 1500 2000 2500 3000 pitch of fin N Pic 55 75 95 115 heating area H m2 218 295 372 449 flow cross-section F m2 0088 0120 0152 0184 theory pipe inner diameter =56mm G Kg 5910 7762 9614 11468 Weight =60mm 5517 7237
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· For flue gas heat recovery here fore uses devices known as Economizers with highly efficient convection passes Flame-tube smoke-tube boilers of all sizes can be easily equipped with an Economizer for flue gas heat recovery or retrofitted in the case of old systems
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· This chapter discusses recovery A as a cross flow with well mixed heating fluid is at uniform temperature; it follows that however efficient the surfaces may be the products of combustion can never be cooled below the maximum temperature of the fluid and in practice the exit gases are well above the fluid
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· This chapter discusses recovery A as a cross flow with well mixed heating fluid is at uniform temperature; it follows that however efficient the surfaces may be the products of combustion can never be cooled below the maximum temperature of the fluid and in practice the exit gases are well above the fluid
Read MoreThe E conomizer in Boiler works on the principle of Heat Transfer Heat transfer usually takes place from high temperature to low temperature In the case of Boilers flue gases or exhaust from the boiler outlet are at high temperature and water that needs to be preheated is at low temperature
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· In a boiler system an economizer captures the heat of the flue gas and transfers it to the feed water The process is simple As the flue gas exits the boiler it enters an economizer with finned tubes The finned tubes absorb the heat and raises the temperature of the boiler feed water lowering the needed energy input Why Add an Economizer? Adding an economizer will increase boiler efficiency by
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The also prevents flooding of the with liquid water that is too cold to be boiled given the flow rates and design of the A common application of in steam power plants is to capture the waste from located in the stack () and transfer it to the
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· H type fin waste recovery (also called ) The concept of The is the heating surface in the tail of the that heats the feed water into saturated water under the pressure of the steam drum Because it absorbs relatively low temperature it reduces the exhaust temperature and saves It improves energy and
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Solid tube sheet with our exclusive tube seal collars provide smooth surface for thermal expansion/contraction of tube and thereby increasing the life of the economizer Heat Exchange Applied Technology Inc Economizers dramatically reduce boiler fuel consumption by efficiently removing waste heat from the flue gas and returning the heat to the feedwater system Our customized analysis allows
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