Homework Help is Here – Start Your Trial Now!
Engineering
Mechanical Engineering
Question 4. Saturated steam at a gauge pressure of 2.0 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16°C and 1.5 bar gauge at a rate of 795 m³ /min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 27°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16°C and 1073 kJ/kg at 93°C. i. Draw a flow diagram and do a degree of freedom analysis for this problem. ii. How much energy (kW) must be transferred to the ethane to heat it from 16°C to 93°C? (Write the energy balance and list all assumptions.) iii. Assuming that, all the energy transferred from the steam goes to heat the ethane, at what rate in m³ /s must steam be supplied to the exchanger? If the assumption is incorrect, would the calculated value be too high or too low? iv. Should the heat exchanger be set up for co-current or counter-current flow? Explain.

Question 4. Saturated steam at a gauge pressure of 2.0 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16°C and 1.5 bar gauge at a rate of 795 m³ /min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 27°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16°C and 1073 kJ/kg at 93°C. i. Draw a flow diagram and do a degree of freedom analysis for this problem. ii. How much energy (kW) must be transferred to the ethane to heat it from 16°C to 93°C? (Write the energy balance and list all assumptions.) iii. Assuming that, all the energy transferred from the steam goes to heat the ethane, at what rate in m³ /s must steam be supplied to the exchanger? If the assumption is incorrect, would the calculated value be too high or too low? iv. Should the heat exchanger be set up for co-current or counter-current flow? Explain.

Elements Of Electromagnetics
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
See similar textbooks
icon
Related questions
Question
100%
Question 4. Saturated steam at a gauge pressure of 2.0 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16°C and 1.5 bar gauge at a rate of 795 m3 /min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 27°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16°C and 1073 kJ/kg at 93°C. i. Draw a flow diagram and do a degree of freedom analysis for this problem. ii. How much energy (kW) must be transferred to the ethane to heat it from 16°C to 93°C? (Write the energy balance and list all assumptions.) iii. Assuming that, all the energy transferred from the steam goes to heat the ethane, at what rate in m³ /s must steam be supplied to the exchanger? If the assumption is incorrect, would the calculated value be too high or too low? iv. Should the heat exchanger be set up for co-current or counter-current flow? Explain.
Transcribed Image Text:Question 4. Saturated steam at a gauge pressure of 2.0 bar is to be used to heat a stream of ethane. The ethane enters a heat exchanger at 16°C and 1.5 bar gauge at a rate of 795 m3 /min and is heated at constant pressure to 93°C. The steam condenses and leaves the exchanger as a liquid at 27°C. The specific enthalpy of ethane at the given pressure is 941 kJ/kg at 16°C and 1073 kJ/kg at 93°C. i. Draw a flow diagram and do a degree of freedom analysis for this problem. ii. How much energy (kW) must be transferred to the ethane to heat it from 16°C to 93°C? (Write the energy balance and list all assumptions.) iii. Assuming that, all the energy transferred from the steam goes to heat the ethane, at what rate in m³ /s must steam be supplied to the exchanger? If the assumption is incorrect, would the calculated value be too high or too low? iv. Should the heat exchanger be set up for co-current or counter-current flow? Explain.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 7 steps with 8 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Instrumentation
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.
Similar questions
Recommended textbooks for you
Elements Of Electromagnetics
Elements Of Electromagnetics
Mechanical Engineering
ISBN:
9780190698614
Author:
Sadiku, Matthew N. O.
Publisher:
Oxford University Press
Mechanics of Materials (10th Edition)
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:
9780134319650
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Thermodynamics: An Engineering Approach
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:
9781259822674
Author:
Yunus A. Cengel Dr., Michael A. Boles
Publisher:
McGraw-Hill Education
Control Systems Engineering
Control Systems Engineering
Mechanical Engineering
ISBN:
9781118170519
Author:
Norman S. Nise
Publisher:
WILEY
Mechanics of Materials (MindTap Course List)
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:
9781337093347
Author:
Barry J. Goodno, James M. Gere
Publisher:
Cengage Learning
Engineering Mechanics: Statics
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:
9781118807330
Author:
James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:
WILEY
SEE MORE TEXTBOOKS