I need the answer as soon as possible d) Decréase the temperature drop ofThe temperature of a solid surface changes from 27°C to 627°C. The emissive powerchanges would then increases by the ratio.a)6:1b)9:1c) 27:1 d) 81:1The definition of Stanton number (St) in terms of Nusselt number (Nu), Reynolds number(Re) and Prandtl númber (Pr) is,a)St = (Nu * Re) /Pr, b) St Re/(Pr*Nu), c) St Nu/(Pr*Re), d) St Nu/(Pr Re)In a counter flow heat exchanger, cold fluid entérs at 30 °C and leaves at 50 °C, whereasthe hot fluid enters at 150 °C and leayes at 135 °C. the logarithmic mean temperaturev)vi)difference for this case is,a)20.7°C, b) 80 °C, c) 102.5 °C,d) 55°C

introduction: here we solve only first three question:

Answered: of Stanton numb- dtl númber (Pr) is Re)…

Engineering

Mechanical Engineering

of Stanton numb- dtl númber (Pr) is Re) /Pr, b) St = Re ow heat exchange

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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