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heat supplied to raise steam in the boiler is 3000 kj kg while heat rejected by the system to the cooling water

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  • steam calculators: boiler calculator

    Steam Calculators: Boiler Calculator

    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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  • problems on thermodynamics part3 | hvac machinery

    Problems on Thermodynamics part3 | hvac machinery

    2. In a certain steam plant the turbine develops 1000 kW. The heat supplied to the steam in the boiler is 2800 kJ/kg, the heat rejected by the system from cooling water in the condenser is 2100 kJ/kg and the feed pump work required to pump the condensate back into the boiler is 5 kW. Calculate the steam flow round the cycle in kg/s.

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  • understanding steam & boiler heating systems | homeadvisor

    Understanding Steam & Boiler Heating Systems | HomeAdvisor

    Boiler Systems Operation. In steam heating systems, a boiler furnace heats water by means of a gas or oil-fired burner and turns it into steam. The steam travels through pipes to radiators or convectors, which give off heat and warm the room. As the steam cools, it condenses back into water, and returns to the boiler to be heated again.

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  • 44. how much heat is in 20 kg of 80% dry steam at 22

    44. How much heat is in 20 kg of 80% dry steam at 22

    23. Find the sensible heat required to raise 16 kg of water at 0°C to the boiling point at 900 kPa. a. 596.12 kJ b. 11,885.28 kJ c. 742.83 kJ d. 146.68 kJ e. 6,752.31 kJ. 24. A boiler furnace releases 11,000 kJ of heat for each kg of fuel burned and produces dry saturated steam at 12,000 kPa from feedwater at 220°C.

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  • how to calculate boiler steam flows | hunker

    How to Calculate Boiler Steam Flows | Hunker

    • ame 50531: intermediate thermodynamics homework solutions

      AME 50531: Intermediate Thermodynamics Homework Solutions

      2.4 Problem 4: 12.97 Consider an ideal air-standard Stirling cycle with an idealregenerator. The minimum pressure and tmeperature in the cycle are 100 kPa, 25 C, the compression ratio is 11, and the maximum temperature in the cycle is 1000 C. Analyze each of the four processes in this cycle for work and heat transfer, and determine the overall perfomance of the engine.

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    • a1-6 flashcards | quizlet

      A1-6 Flashcards | Quizlet

      A boiler generate 8 kilograms of dry saturated steam for a kilogram of fuel oil burnt. Fuel oil heating value is 33000 kilojoules per kilogram. Feed water is supplied at 70 degrees Celsius in the boiler pressure is 1400 kiloPascals.

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    • study 18 terms | pan global chapter flashcards | quizlet

      Study 18 Terms | Pan Global chapter Flashcards | Quizlet

      A boiler generates 8 kg of dry saturated steam per kg of fuel oil burned. Fuel oil heating value is 33 000 kJ/kg. Feedwater is supplied at 70°C, and the boiler pressure is 1400 kPa. Calculate the boiler efficiency. 57.3% 60.5% 74.7% 85.0% 92.3%

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    • combined heating, cooling & power handbook technologies

      Combined Heating, Cooling & Power Handbook Technologies

      using rejected heat (thermal energy) to produce other useful products. These products range from hot water for heating to process steam to chilled water for cooling. Most importantly, recovering the prime mover’s thermal energy can eliminate the energy otherwise consumed to conventionally produce the same useful products. Generally, cogeneration

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    • how many heat should be required to convert 1 kg of water

      How many heat should be required to convert 1 kg of water

      To arrive the answer to the question few more data is required. a. Pressure at which water is to be heated. b. Initial temperature of the water. c. Amount of super heat required. From the above , we will be able to calculate the enthalpy change of

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    • how long does it take boiler and water to reach boiling

      How long does it take boiler and water to reach boiling

      Sep 28, 2008 · Specific heat of iron = 0.460 kJ/kg°C. You want to heat 230kg = 230kg 82°C This will take: 230*82*0.460 = 8,7MJ. Time taken to reach 100°C = 284.9+8.7= 293.6/52 = 5.65 hours. You now convert the water to steam at 100°C. Latent heat of steam = 2250 kJ/kg This will require: 830*2250 = 1,867,MJ . The iron boiler will remain at 100°C. Now add

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    • heat, work and energy - engineering toolbox

      Heat, Work and Energy - Engineering ToolBox

      • thermodynamics of steam - wordpress

        Thermodynamics of Steam - WordPress

        steam, it took 22 570 kJ or 75% of the total 30 120 kJ of heat supplied. In other words, it takes much less heat to change the ice to water and to raise water to its boiling point, than it does to boil all the hot water into steam.

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      • how to calculate boiler heat input rate | sciencing

        How to Calculate Boiler Heat Input Rate | Sciencing

        How to Calculate Boiler Heat Input Rate. Depending on its energy source, a boiler may get its heat from the flow of electric current or from burning fuel. Each of these sources offer its own method for calculating the boiler's heat input rate. A separate method, however, works for all boilers. The boiler's

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      • answer in molecular physics | thermodynamics question for

        Answer in Molecular Physics | Thermodynamics Question for

        Heat supplied to raise steam in the boiler is 3000 KJ/kg while heat rejected by the system to the cooling water in the condenser is 2000 KJ/kg. The turbine develops power of 1500 KW and the work required to pump the condensate back into the boiler is 50 KW.

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      • #iyileşeceğiz

        #iyileşeceğiz

        2394.4)kJ/kg 122 kW kW 18,170kW (20 kJ,'kg) w -18,170-122 18,050 kW P,in 18,050 0.3025 59,660 (Problem 10.20 in the book) A simple Rankme cycle uses water as the working fluid. The boiler 0Frates at 6000 kPa and the condenser at 50 kPa_ At the entrance to the turbine, the temperanlre is 4500C. The isentropic efficiency of the turbine is 94%,

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      • [solved] calculate the heat required to produce 1.500 kg

        [Solved] calculate the heat required to produce 1.500 kg

        1. calculate the heat required to produce 1.500 kg of wet steam at. 2250.000 kpa from water at 210.000 degree celcius and a dryness fraction of 70.000% Answer: 2596.455 kj 2. determine the quantity heat required, to raise 5.700 kg of water at 140.000 degree celcius, to saturated steam at 1200.000 kpa and 70.800% dry. Answer: 9209.773 kj 3. A boiler furnace releases 13300.000 kj of heat for

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