Q2- A single-pass counter-flow heat exchanger is used to heat water from 8°C to 15°C using hot oil at 130°C. The mass flow rates of water and oil are 2.2 kg/s and 1.9 kg/s respectively. Their respective specific heat capacities are 4.2 kJkg-1K-1 and 1.9 kJkg-1K-1. Calculate (1) the temperature of the oil leaving the heat exchanger, (i1) (i1) the log-mean temperature difference (LMTD), (i11) (ii1) the heat transfer area, if the overall heat transfer coefficient is 240 Wm-2K-1, and (iv) the effectiveness.
Q2- A single-pass counter-flow heat exchanger is used to heat water from 8°C to 15°C using hot oil at 130°C. The mass flow rates of water and oil are 2.2 kg/s and 1.9 kg/s respectively. Their respective specific heat capacities are 4.2 kJkg-1K-1 and 1.9 kJkg-1K-1. Calculate (1) the temperature of the oil leaving the heat exchanger, (i1) (i1) the log-mean temperature difference (LMTD), (i11) (ii1) the heat transfer area, if the overall heat transfer coefficient is 240 Wm-2K-1, and (iv) the effectiveness.
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
Related questions
Question
I need to solve question 2.

Transcribed Image Text:QI- The following data relates to the office air conditioning plant having maximum
seating capacity of 25 occupants:
Outside design conditions
Inside design conditions
Solar heat gain
Latent heat gain per occupant = 120 W
Sensible heat gain per occupant = 100 W
Lightening load
Sensible heat load from other sources = 11000 W
= 34°C DBT, 28°C WBT
= 24°C DBT, 50% RH
= 9120 W
= 2500 W
Infiltration load
= 16 m / min
tas(ADP)
= 8 °C
Assuming 30% fresh air and 70% of recirculated air passing through the evaporator coil and
the by-pass factor of 0.15, find the dew point temperature of the coil, capacity of the plant,
Volume flow rate of supply air, Supply air temperature.
Q2-A single-pass counter-flow heat exchanger is used to heat water from 8°C to 15°C using hot
oil at 130°C. The mass flow rates of water and oil are 2.2 kg/s and 1.9 kg/s respectively. Their
respective specific heat capacities are 4.2 kJkg-1K-1 and 1.9 kJkg-1K-1. Calculate
(1) the temperature of the oil leaving the heat exchanger,
(ii) (ii) the log-mean temperature difference (LMTD),
(iin) (ii1) the heat transfer area, if the overall heat transfer coefficient is 240 Wm-2K-1, and
(iv) the effectiveness.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images

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

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