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# ﻿boiler Agent factor of evaporation and equivalent

• ### Define equivalent evaporation and boiler efficiency? - Answers

May 05, 2012 · Boiler power is not determined in megawatts. A boiler horsepower is determined as 33000 btus. That is equivalent to 34.5 pounds of steam from and at 212 F. Conversion of boiler conditions (factor

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• ### Boiler Ratings | Spirax Sarco

A boiler has a 'from and at' rating of 2 000 kg/h and operates at 15 bar g. The feedwater temperature is 68°C. The use of Equation 3.5.1 will determine a factor to produce the same result: Note: These values are all from steam tables. Using the information from Example 3.5.1 and the Equation 3.5.1 the evaporation factor can be calculated

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• ### What do you understand by 'equivalent evaporation' from

The equivalent evaporation (kg/hr) of a boiler producing 2000 kg/hr of steam with enthalpy content of 2426 kJ/kg from feed water at temp. 40°C (liquid enthalpy = 168 kJ/kg; enthalpy of vaporisation of water at 100°C = 2258 kJ/kg is: This question was previously asked in.

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• ### ﻿4 tons equivalent of boiler Agent bhp

Boiler Formulas: Common Conversion Factors. Boiler HP x 34.5 Boiler HP x.069 Boiler HP x 33.4 Boiler HP x 139 BTU/Hour Output ч 240 EDR/1000 x 0.5 Lbs of Steam /Hr ч 500 = Lbs. of Steam per Hour = Evaporation Rate Gallons per Minute (GPM) = MBTU per Hour Output (MBH) = Sq. Feet of Equivalent Direct Radiation (EDR) = Sq. Feet of Equivalent

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• ### 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

Ł To find out the efficiency of the boiler Ł To find out the Evaporation ratio The purpose of the performance test is to determine actual performance and efficien-cy of the boiler and compare it with design values or norms. It is an indicator for tracking day-to-day and season-to-season variations in boiler efficiency and energy efficiency

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• ### Boiler Formulas | Johnston Boiler | Top Quality Boiler

Factor of Evaporation: FE = SH + LH / 970.3: SH: Sensible Heat: FE = ((338 – 225) + 881) / 970.3: LH: Latent Heat: FE = 1.02: 970.3: Latent Heat of Evaporation of Water at 212°F (constant)

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• ### Joint Crediting Mechanism Approved Methodology MM …

The project boiler is a once-through boiler with a rated capacity of 7 ton/hour per unit or less (equivalent evaporation) Criterion 2 Periodical check and maintenance by the manufacturer of boiler or authorized agent is implemented at least once a year. E. Emission Sources and GHG types Reference emissions Emission sources GHG types

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• ### 1. ENERGY PERFORMANCE ASSESSMENT OF BOILERS

Ł To find out the efficiency of the boiler Ł To find out the Evaporation ratio The purpose of the performance test is to determine actual performance and efficien-cy of the boiler and compare it with design values or norms. It is an indicator for tracking day-to-day and season-to-season variations in boiler efficiency and energy efficiency

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• ### Evaporator and Recovery Boiler Energy Efficiency white

The temperature of steam having a pressure of 50 pounds is 298°. In the table of " Factors of Evaporation, " the factor corresponding to a steam temperature of 302° and a feed temperature of 158° (which are the numbers in the table nearest to the given ones), is 1.09. Now this engine requires an evaporation of 6 times 79, or 474 pounds of water per hour, at a pressure of 50 pounds, or an equivalent evaporation …

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• ### Problem on boiler efficiency and equivalent evaporation

Oct 23, 2018 · This video explains how to find out boiler efficiency and equivalent evaporation.This question we have from Thermodynamics May 2018 question paper of Savitri

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• ### MCE 508 POWER GENERATING PLANTS (3 UNITS) …

Therefore, the equivalent evaporation of a boiler, from and at 1000C is: ms(h2 – h1) kg in the given time or per kilogram of fuel 2256.9 QUESTION 1.1 A boiler with super heater generates 6000 kg/h of steam at a pressure of 15 bar, 0.98 dry at exit from boiler and at a temperature of 300oC on leaving the super heater. If the feed

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• ### Steam Calculators: Boiler Calculator

Mar 17, 2015 · Steam, Boiler, and Blowdown Pressure are the same. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure.

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• ### 1143 Boiler efficiency This is the ratio of heat actually

Example 11.1 A boiler evaporates 3.6 kg of water per kg coal into dry saturated steam at 10 bar. The temperature of the feed water is 32 o C. Find (a) the equivalent evaporation "from and at 100 o C"; (b) the factor of evaporation.

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• ### If a boiler has a factor of evaporation of 1.075 and its

If a boiler has a factor of evaporation of 1.075 and its actual flow rate is 220 kg/min, calculate the equivalent evaporation in kg/hr. A. 32871 kg/hr B. 13200 kg/hr C. …

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• ### Factors Of Evaporation - ChestofBooks.com

Example.-Suppose that a cylinder boiler is to be proportioned for an evaporation of 500 lbs. of water per hour, at a pressure of 75 lbs., the temperature of the feed-water being 80°. The equivalent evaporation will be 1.17 times 500, or 585 lbs., and the grate-surface 585 divided by 75, or 7-8/10 square feet.

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• ### A boiler produces 250,000 pounds of steamper hour at

Calculate: A) boiler capacity B) factor of evaporation C) Equivalent evaporation Question : A boiler produces 250,000 pounds of steamper hour at 1200 psia and 1050 F from feed water entering the boiler at 1500 psia and 300 F. Fuel oil having a higher heating value of 18,000 Btu/lb is supplied to the burners at a rate of 20,500 lb/hr. Furnace

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• ### [Solved] The equivalent evaporation (kg/hr) of a boiler

What do you understand by 'equivalent evaporation' from and at 100

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• ### K J SOMAIYA COLLEGE OF ENGINEERING MUMBAI-77

Boiler Performance Parameters 1. Equivalent evaporation from and at 100 C 2257 Total heat required to evaporate feed water /w of fuel 2257 2257 kg kg m h h m m h h e f s w u Where, h= enthalpy of steam (kJ/kg) h w = enthalpy of feed water (kJ/kg) f s e m m m mass of water actually evaporated in kg per kg of fuel burnt. 2. Factor of Evaporation

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• ### Indian Agricultural Statistics Research Institute

24.8.1 A boiler evaporates 3.6 kg of water per kg of coal burnt into dry saturated steam at 10 bar pressure .The temperature of feed water is 32 o C. Find the equivalent evaporation from and at 100 o C as well as factor of evaporation.

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• ### How to find out boiler efficiency and equivalent

Johnston Boiler Company Boiler Glossary - Steam & Combustion

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