250+ TOP MCQs on Evaporative Capacity and Equivalent . Equivalent evaporation is an important factor while determining the performance of the boiler. 6. A boiler generates 30 kg of steam at 11.5 bar in 1 hour with the consumption of 3 kg of coal. Feed water temperature is 40°C. Calculate equivalent evaporation if the steam is dry and saturated.

Read MoreEquivalent Evaporation Rate; Boiler Horse power Efficiency of Boiler. Actual Evaporation Rate is rate of steam produced from boiler under a certain pressure and feed water temperature is equal 30 °C. Equivalent Evaporation Rate is rate of steam produced from boiler under atmospheric pressure and temperature 100°C. Boiler Horse Power: 1 34.5

Read MoreEquivalent Evaporation Rate; Boiler Horse power Efficiency of Boiler. Actual Evaporation Rate is rate of steam produced from boiler under a certain pressure and feed water temperature is equal 30 °C. Equivalent Evaporation Rate is rate of steam produced from boiler under atmospheric pressure and temperature 100°C. Boiler Horse Power: 1 34.5

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 …

Read MoreBoiler Efficiency and Equivalent Evaporation - Notes, Engineering. 7.4K views. Boiler efficiency and equivalent evapouration - Notes, Semester, Engg. 957 views. Chapter 3 - Steady-State Equivalent Circuit Modeling, Losses, and Efficiency. 344 views. Understanding: Equivalent Rational Numbers.

Read MoreBoiler Ratings | Spirax Sarco. Both these effects reduce the actual steam output of the boiler, for the same This is not an evaporation rate, and is subject to the same 'from and at' factor. Energy Efficiency in Boilers & Steam System - cloudfront.net. A boiler produced equivalent evaporation rate 5,000kg/h.

Read MoreWatertube boilers, depending on size, may be fired by atmospheric gas burners, power gas burners, mechanical or air or steam atomizing oil burners, or combination gas/oil firing. Units to fire either natural gas or fuel oil may be arranged for either manual or

Read MoreEquivalent evaporation is an important factor while determining the performance of the boiler. 6. A boiler generates 30 kg of steam at 11.5 bar in 1 hour with the consumption of 3 kg of coal. Feed water temperature is 40°C. Calculate equivalent evaporation if the steam is dry and saturated. a) 10.78 kg of steam/kg of fuel b) 11.58 kg of steam

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Read MoreMar 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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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 MoreThe ratio of the amount of heat absorbed per kg of steam in the boiler, to the amount of heat absorbed in producing 1 kg of steam at 100°C from water at 100°C is called the: a. Dryness fraction b. Equivalent evaporation. c. Factor of evaporation d. Efficiency of steam generation e. Latent heat of fusion.

Read MoreQuestion is ⇒ The ratio of heat utilised to produce steam and the heat liberated in furnace is known as, Options are ⇒ (A) boiler effectiveness, (B) boiler evaporative capacity, (C) factor of evaporation, (D) equivalent evaporation, (E) boiler efficiency., Leave your comments or Download question paper.

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 MoreThe higher quality of steam mitigates the use of steam separators or steam accumulators. When discussing steam boilers, there are two distinct types of large water content boilers, water tube and firetube. Water tube boilers are designed with water inside the tubes of the boiler and hot gases surrounding the tubes.

Read More250+ TOP MCQs on Evaporative Capacity and Equivalent . Equivalent evaporation is an important factor while determining the performance of the boiler. 6. A boiler generates 30 kg of steam at 11.5 bar in 1 hour with the consumption of 3 kg of coal. Feed water temperature is 40°C. Calculate equivalent evaporation if the steam is dry and saturated.

Read MoreA boiler has equivalent evaporation of 1300 kg/hr from and at 100C. The fuel consumption per hour is 159.5 kg/hr and the boiler efficiency is 72%. Determine actual equivalent evaporation if feed is supplied at 110C to generate steam at 100 kg/m² per hour and 15 bars, 200C. Also find calorific value of coal burnt and the grate area.

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