(a) Explanation Write the expression for mass of the water vapor. m v a p = V v a p v g 1 (I) Here, volume of the water vaporis V v a p and specific volume of the water vaporis v g 1 . Write the expression for initialmass of the water liquid. m l i q = V l i q v f 1 (II) Here, volume of the water liquid is V l i q and specific volume of the water liquidis v f 1 . Write the expression for total initialmass of the water. m w a t e r = m v a p + m l i q (III) Write the expression forfinal specificvolume of the water. v = V l i q + V v a p m w a t e r (IV) Write the expression for the dryness fraction temperature 200 ° C at the state-2. x 2 = v − v f 2 v g 2 − v f 2 (V) Here, specific volume of the saturated liquid water is v f 2 , specific volume of the water vapor in the state-2 is v v 2 , and specific volume of the saturated water vapor is v g 2 Write the expression for the mass of the water vapor in the state-2. m v 2 = x 2 m w a t e r (VI) Write the expression for the pressure of dry air at the state-2. p a 2 = p 2 − p s a t (VII) Here, pressure in the state-2 is p 2 and saturated pressure in the state-2 is p s a t Write the expression for the ideal gas equation at the state-2. p a 2 V 2 = m a R T 2 m a = p a 2 V 2 R T 2 (VIII) Here, mass of the air is m a , universal gas constant is R ¯ , and molar mass of the air is M a . Substitute p 2 − p s a t for p a 2 in the Equation (VIII). m a = ( p 2 − p s a t ) V 2 R T 2 (IX) Write the expression for the specific humidity in the state-2. ω 2 = m v 2 m a (X) Write the expression for the final pressure at the state-2. p 2 = p v 2 ( 1 + 0.622 ω 2 ) (XI) Conclusion: Refer Table A-2 “Properties of saturated water (liquid-vapor)” to obtain v g 1 as 3.407 m 3 / kg at the temperature 80 ° C and v f 1 as 1.0291 × 10 3 m 3 / kg at the temperature 80 ° C , and p s a t as 0.4739 bar at the temperature 80 ° C Substitute 0.5 m 3 for V v a p and 3.407 m 3 / kg for v g 1 in the Equation (I). m v a p = 0.5 m 3 3.407 m 3 / kg = 0.1486 kg Substitute 0.1 m 3 for V l i q and 1.0291 × 10 3 m 3 / kg for v f 1 in the Equation (II). m l i q = 0.1 m 3 1.0291 × 10 − 3 m 3 / kg = 0.1 m 3 × 10 3 m 3 1.0291 m 3 / kg = 97.1723 kg Substitute 0.1468 kg for m v a p and 97.1723 kg for m l i q in the Equation (III) (b) To determine The heat transfer through the tank.

8th Edition

ISBN: 2818440116926

Author: MORAN

Publisher: WILEY CONS

See similar textbooks

Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. T…

Videos

Question

Chapter 12.9, Problem 59P

(a)

To determine

The final pressure in the tank.

(b)

To determine

The heat transfer through the tank.

Expert Solution & Answer

Chapter 12 Solutions

FUNDAMENTALS OF ENGINEERING THERMODYNAM

Ch. 12.9 - Prob. 1E Ch. 12.9 - Prob. 2E Ch. 12.9 - Prob. 3E Ch. 12.9 - Prob. 4E Ch. 12.9 - Prob. 5E Ch. 12.9 - Prob. 6E Ch. 12.9 - Prob. 7E Ch. 12.9 - Prob. 8E Ch. 12.9 - Prob. 9E Ch. 12.9 - Prob. 10E

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.

Recommended textbooks for you

Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY

Elements Of Electromagnetics

Mechanical Engineering

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:9780134319650

Author:Russell C. Hibbeler

Publisher:PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:9781259822674

Author:Yunus A. Cengel Dr., Michael A. Boles

Publisher:McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:9781118170519

Author:Norman S. Nise

Publisher:WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:9781118807330

Author:James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:WILEY

SEE MORE TEXTBOOKS

First Law of Thermodynamics, Basic Introduction - Internal Energy, Heat and Work - Chemistry; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=NyOYW07-L5g;License: Standard youtube license