A water tube boiler has a capacity of 975 kg/hr of steam. The factor of evaporation is 1.3, boiler rating is 200%, boiler efficiency is 60%, heating surface area is 0.91 m 2 per bo. HP, and the heating value of fuel is 18,191 kCal/kg. The total coal available in the bunker is 49,469 kg. Determine the no. of hours to consume the available fuel.

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 MoreNov 03, 2006 · The factor of evaporation is 1.08. BHP = (LB/HR*fe)/34.5 BHP = (LB/HR*fe)/34.5 BHP = 21500 * 1.08 / 34.5 BHP = 673 Where, BHP boiler horsepower Lb/Hr pounds per hour Fe factor of evaporation (can be assumed to be equal to 1) CYCLE OF CONCENTRATION OF BOILER WATER

Read MoreA water tube boiler has a capacity of 975 kg/hr of steam. The factor of evaporation is 1.3, boiler rating is 200%, boiler efficiency is 60%, heating surface area is 0.91 m 2 per bo. HP, and the heating value of fuel is 18,191 kCal/kg. The total coal available in the bunker is 49,469 kg. Determine the no. of hours to consume the available fuel.

Read MoreJan 28, 2021 · A boiler generates 7.5 kg of steam per kg of coal burnt at a pressure of 11 bar. The feed water temperature is 70°C; boiler efficiency is 75%; factor of evaporation is 1.15; C p = 2.1 kJ/kgK. Calculate: (i) degree of superheat and temperature of steam generated, (ii) calorific value of coal in kJ/kg, and (iii) equivalent evaporation in kg of steam per kg of coal.

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.

Read MoreJan 28, 2021 · A boiler generates 7.5 kg of steam per kg of coal burnt at a pressure of 11 bar. The feed water temperature is 70°C; boiler efficiency is 75%; factor of evaporation is 1.15; C p = 2.1 kJ/kgK. Calculate: (i) degree of superheat and temperature of steam generated, (ii) calorific value of coal in kJ/kg, and (iii) equivalent evaporation in kg of steam per kg of coal.

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

Read MoreThe factor of evaporation is 1.08. BHP = (LB/HR*fe)/34.5 Factor of Evaporation Water enters the boiler at 225 F. The. formula for package type boiler heating surface. The commonly used calculation formula is: hot water boiler load D MW = T * S / 215000, which T for indoor and outdoor temperature difference, S for heating area, 215000 for the

Read MoreMay 15, 2020 · Determine the boiler heating surface in m2 and the weight of steam generated in kg/s if the boiler evaporates 34.5 lb/hr of water per 12 ft2 of heating surface or 3.9 g/m2-s? Answer: A A. 2,360.67 kg/hr B. 1,234.57 kg/hr C. 3,247.76 kg/hr D. 4,576.68 kg/hr 41.

Read MoreCommon Boiler Formulas - Steam & Combustion11 Mar 2006 factor of evaporation (can be assumed to be equal to 1). CYCLE OF CONCENTRATION OF BOILER WATER. What is the cycle of concentration. 5 Ton Type Boiler Capacity - Condensing Hot Water Boiler,Electric Boiler capacity is 5ton, what will be the feed water tank capacity? Kefid · Generally

Read MoreSafe management of industrial steam and hot water boilers. 2019-12-5 · If there is a boiler installation on your premises, you must ensure it remains safe. An efficient, reliable boiler is an essential requirement for many businesses, and the downtime caused by a failed boiler can have a major effect on production, plant and people.

Read MoreA boiler generates steam at 12.5 bar pressure. Temperature of the feed water is 35°C. Determine the factor of evaporation if the dryness fraction of the steam is 0.85. Determine the temperature of feed water of a boiler having factor of evaporation equal to 1.14. The enthalpy of 1 kg of steam is 2700 kJ/kg. a) 30°C b) 40°C c) 35°C d) 45°C.

Read MoreValue of evaporation ratio for different types of boiler is listed as-a) Coal fired boiler- 4.0-6.0. b) Oil fired boiler- 13.0-14.5 . c) Gas fired boiler- 11.0-13. More information about the questions of boiler, such as boiler capacity, how to calculate boiler price and cost, etc., …

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 More17.) A 275 horse power boiler is producing steam at 100 psi, burning #6 fuel oil 18,500 btu / lb. Factor of evaporation is 1.12 and the boiler is 80% eff. What is the evaporation rate and HP. ? 18.) 500 lbs of water @ 150 0 and 300 lbs @ 90 0 are mixed together, what is the final temperature of the mixture? 19.

Read MoreRated Boiler Output .. 6-12 Factor of Evaporation .. 6-12 Abbreviations .. 15. CB-7853 6 There is a variety of boiler design concepts available in the marketplace. required. industrial watertube boilers can be field erected (see Figure 1-5) but, in most cases, smaller boilers of …

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