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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Read MoreNov 03, 2006 · FACTOR OF EVAPORATION Water enters the boiler at 225°F. The boiler pressure is 100 psi and the boiler water temperature is 338°F. The latent heat is 881 Btu. What is the factor of evaporation? FE = SH + LH / 970.3 FE = SH + LH / 970.3 FE = ((338 - 225) + 881) / 970.3 FE = 1.02 Where, FE factor of evaporation SH sensible heat LH latent heat

Read MoreIn 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 " from and at 212°" of 1.09 times 474, which is equal to 516.66 …

Read MoreThe factor of evaporation for all boilers is always greater than unity. B. The amount of water evaporated in kg per kg of fuel burnt is called equivalent evaporation from and at 100° C. C. The ratio of heat actually used in producing the steam to the heat liberated in the furnace is called boiler …

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Read MoreDetermine actual and equivalent evaporation (a) per hour, (b) per m2 of grate area per hour, and (c) per m2 of heating surfcace area per hour. 7. A boiler generates steam at a rate of 40 tonnes/h consuming coal at 4000 kg/h of calorific value 35,000 kJ/kg. The steam pressure is 15 bar and dry saturated. Calculate (a) factor

Read MoreMay 12, 2020 · If the boiler contains an economiser & superheater is considered a single unit, then the efficiency is termed as the overall efficiency of the boiler. Boiler Power . The American Society of Mechanical Engineers (ASME) has recommended that one boiler horsepower is equivalent to evaporation of 15653 kg of water per hour from and at 100° C.

Read MoreBoiler 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

Read MoreBoiler Efficiency and Equivalent Evaporation - Notes, Engineering. 7.3K views. Boiler efficiency and equivalent evapouration - Notes, Semester, Engg. 957 views. Chapter 3 - Steady-State Equivalent Circuit Modeling, Losses, and Efficiency. 342 views. Change in States of Matter and Evaporation.

Read MoreMay 08, 2019 · Now, in order to calculate the equivalent mass of K M n O X 4, first I need to calculate it's n -factor which turns out to be 5 because the oxidation state of M n in K M n O X 4 is + 7 whereas in M n C l X 2 it is + 2. And the n -factor of H C l is 1. So, the equivalent weight of …

Read MoreView Boiler-Basic-Calculation.pdf from ME 101 at National University Manila. Boiler Basic Calculation Formula • Factor of evaporation • . = ℎ −ℎ 2257 • Rater boiler HP • • Equivalent

Read MoreFactors Of Evaporation 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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Read MoreFactor 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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Read MoreWhat do you understand by 'equivalent evaporation' from and at 100

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Read MoreJun 23, 2017 · Equivalent evaporation actually indicates the amount of heat added in the boiler for steam generation. Equivalent evaporation refers to the quantity of dry saturated steam generated per unit of time from feedwater at 100°C to steam at 100°C at the saturation pressure corresponding to 100°C. Sometimes it is called equivalent evaporation from and at 100°C. Thus mathematically it could be given as: For a boiler generating steam …

Read MoreThe selection of type and size of a steam boiler depends upon the following factors: I. The power required and the working pressure. 2.The rate at which steam is to be generated. 3.The geographical position of the power house. 4.The fuel and water available.

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