.A coal-burning factory produces 1225MW of electricity per day and runs at 35%efficiency(η). Determine how much water will be needed daily to cool down the hot steam fromthe combustionin order to runthe plant if the water comes from a nearby Lake and has aaverage temperatureof 150C,5% of the emitted heatfrom the combustionis lost to thesurroundings(i. e., heating up the pipes and energy of the exhaust gas in the stack),and thewater is i) evaporated in a cooling tower or ii) recycled and returnedto the lake at 350C. Forcoal: cp= 2kJ/kg/°C; cv= 1.75kJ/kg/°C;heat released by combustion, or ΔH = 5kW/kg.1Watt = 1J/s
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Physics, 22.06.2019 08:50
You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?
Answers: 2
Physics, 22.06.2019 17:40
A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?
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Physics, 22.06.2019 23:30
Forms of meditation hail from which traditions a ) eastern traditions b ) western traditions c ) eastern and western traditions d ) neither eastern nor western traditions
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Physics, 23.06.2019 00:30
Drag the tiles to the correct boxes to complete the pairs. match the jobs with the education requirements. childcare director clinical psychologist concierge cosmetologist vocational school and state licensure arrowright on-the-job training arrowright a ph.d. with licensure or certification, depending on the state in which you live arrowright a bachelor’s degree in early childhood development arrowright
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.A coal-burning factory produces 1225MW of electricity per day and runs at 35%efficiency(η). Determi...
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