● Dry air at 15 oC and 85 kPa flows over a 2m long wet surface with a free stream velocity of 3 m/s. Determine the mass transfer coefficient. • Because of low mass flux conditions, we can use dry air properties for the mixture at the specified temperature of 15°C and 1 atm, for which v= 1.47 *105 m²/s. The mass diffusivity of water vapor in air at 288 K is determined from Eq. below to be: T2.072 DAB 1.87 x 10-5 × P Answer:0.0115 m/s ● ●

● Dry air at 15 oC and 85 kPa flows over a 2m long wet surface with a free stream velocity of 3 m/s. Determine the mass transfer coefficient. • Because of low mass flux conditions, we can use dry air properties for the mixture at the specified temperature of 15°C and 1 atm, for which v= 1.47 *105 m²/s. The mass diffusivity of water vapor in air at 288 K is determined from Eq. below to be: T2.072 DAB 1.87 x 10-5 × P Answer:0.0115 m/s ● ●

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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