5- Most of the resilential houses in Begvo have a fire placeWhere firc wod 1s used for fuel and burn home heatingThe air hasan entharpyof B02 15/kg and the fire wood hason enthalpy of 43, 207 3/kg. The hut gases resulting fromburning of ficewoad has an enthalpy of b16 ks/xg Therhoatgavasuteuting from burning If was customory funs that thereCire 17 kg of oir heceded for each kg of firewood paratargtOerded to sustain continuous Combustion An average familySize house reauires 19.b kW of hcat for comfor tuble livingCondition in Baguio. How many kg of freuward per day isneeded for this requiroment.

Answered: 5- Most of the resilential houses in…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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What is the specific volume and enthalpy of the steam at T = 350°C and P = 1400kPa? Answer: 0.20029m³/kg, 3150.1 kJ/kg
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Explain how to Entropy Generation Associated with a Heat Transfer Process
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Carbon dioxide gas enters a throttling valve at 5 MPaand 100°C and leaves at 100 kPa. Determine the temperaturechange during this process if CO2 is assumed to be (a) anideal gas and (b) a real gas.
Water vapour at 100 kPa and 150 is contained in a rigid vessel. At what temperature will the vapour stat to condense when the container is cooled slowly? How much heat will have to be removed per kilogram in this cooling process? Ans:95.68C, -81.4kj/kg
5400 kg of steam is produced per hour at a pressure of 750 kN/m2 in a boiler when feed water at 41.5 C. The dryness fraction of steam at exit is 0.98. The amount of coal burnt per hour is 670 kg of calorific value 31000 kJ/kg. Determine the boiler efficiency and equivalent evaporation.
Steam enters a turbine at 9 MPa, 600°C, and 60 m/s and leaves at 20 kPa and 90 m/s with a moisture content of 5 percent. The turbine is not adequately insulated, and it estimated that heat is lost from the turbine at a rate of 220 kW. The power output of the turbine is 4.5 MW. Assuming the surroundings to be at 25°C, determine Also, estimate the possible increase in the power output of the turbine if the turbine were perfectly insulated.
This link is for steam tables: https://1drv.ms/b/s!AvFGRwE60LNAaqAcZZFlgm2E4ks
the total enthalpy of 18 kg of steam at 9000 kpa is 42 409.224 kj . Determine the dryness fraction of the steam ? .
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A mixture (i.e., thermodynamic system) of 0.182 kg of helium (He) and 0.091 kg ofoxygen (O2) is compressed polytropically (PVn = const.) in a piston-cylinder devicefrom 101.352 kPa and 15.56 degree C to 413.69 kPa according to n = 1.4. Determine for theprocess: (a) the final temperature, (b) the work done, and (c) the heat energy.Clearly mention whether the work is done on or by the mixture, and whether the heatis supplied to or rejected by the mixture to the surroundings.Take the specific heat capacity at constant volume, cv for He = 3.119 kJ/(kg·K) andfor O2 = 0.659 kJ/(kg·K), and the value of gas constant R for He = 2.0769 kJ/(kg·K)and for O2 = 0.2598 kJ/(kg·K).Draw the schematic of piston-cylinder device and display the process on a hypothetical indicator diagram for the process.

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