c) A steel pipe of 100 mm bore, and 10 mm bore thickness, carrying dry saturated steam at 28bars, is insulated with a 40 mm layer of moulded insulation. This insulation in turn isinsulated with a 60 mm layer of felt. The atmospheric temperature is 15 °C.Calculate:(i) the rate of heat loss by the steam per metre pipe length.(ii) the temperature of the outsideDimensions in mmsurface.zzzzzzzh₂-15 W/m²KSteelk₁=50 W/mKAVALEHTØ1001₂"Steam 28 barh-550 W/m²K,Inner heat transfer coefficient = 550 W/m² KOuter heat transfer coefficient = 15 W/m² KThermal conductivity of steel = 50 W/m KThermal conductivity of felt = 0.07 W/m KMouldedinsulationFeltMoulded insulationK₂=0.09 W/mKThermal conductivity of moulded insulation = 0.09 W/m4010.A6015°CFeltK₁=0.07 W/mKzzzzzzzz

(i) Write the given data. r1=50 mmr2=50+10=60 mmr3=60+40=100 mmr4=100+60=160 mmhi=550 W/m2Kho=15…

c) A steel pipe of 100 mm bore, and 10 mm bore thickness, carrying dry saturated steam at 28 bars, is insulated with a 40 mm layer of moulded insulation. This insulation in turn is insulated with a 60 mm layer of felt. The atmospheric temperature is 15 °C. Calculate: (i) the rate of heat loss by the steam per metre pipe length. (ii) the temperature of the outside Dimensions in mm surface.zzzzzzz h-15 W/m²K Steel k₁=50 W/mK AHHA 100 Steam 28 bar h-550 W/m²K, Moulded insulation Felt Moulded insulation k₂=0.09 W/mK 40 10. 60 15°C Felt K₂=0.07 W/mK mmmm

c) A steel pipe of 100 mm bore, and 10 mm bore thickness, carrying dry saturated steam at 28 bars, is insulated with a 40 mm layer of moulded insulation. This insulation in turn is insulated with a 60 mm layer of felt. The atmospheric temperature is 15 °C. Calculate: (i) the rate of heat loss by the steam per metre pipe length. (ii) the temperature of the outside Dimensions in mm surface.zzzzzzz h-15 W/m²K Steel k₁=50 W/mK AHHA 100 Steam 28 bar h-550 W/m²K, Moulded insulation Felt Moulded insulation k₂=0.09 W/mK 40 10. 60 15°C Felt K₂=0.07 W/mK mmmm

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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