Logo
Home Study Material Contact Search
AI Chat FREE
  1. engineering
  2. mechanical engineering
  3. air (cp = 1.005 kj/kg · k) is to be preheated b

Air (Cp = 1.005 kJ/kg · K) is to be preheated by hot exhaust gases in...

90.2K

Verified Solution

Question

Mechanical Engineering

Air (Cp = 1.005 kJ/kg · K) is to be preheated by hot exhaustgases in a cross-flow heat exchanger before it enters the furnace.Air enters the heat exchanger at 95 kPa and 20◦C at a rate of 0.90kg/s. The combustion gases (Cp = 1.1 kJ/kg · K) enter at a rate of1.1 kg/s and 150◦C. The product of the overall heat transfercoefficient and the heat transfer surface area is U A = 1200 W/K.Assuming both fluids to be unmixed, use the effectiveness-NTUmethod to determine

(a) the heat exchanger effectiveness,

(b) the rate of heat transfer, and

(c) the exit temperature of the exhaust gases.

Answer & Explanation Solved by verified expert
4.1 Ratings (819 Votes)
    See Answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Statistics
1.2K views

The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal supplier that...

Electrical Engineering
1.2K views

Which of the following combinations of gates can be used to make a clocked SR flip-flop?...

Physics
1.2K views

A gas expands in a frictionless piston cylinder arrangement The expansion process is very slow...

Physics
1.2K views

Thermal Properties of Matter 13 A rectangular block is heated from 0 C to 100...

Basic Math
1.2K views

A baseball stadium offers tickets with different prices, depending on the location of the seats....

Accounting
1.2K views

Question 43 of 43 -16 Current Attempt in Progress Oriole Corporation...

Accounting
1.2K views

Class Presentation: Dear All, As discussed, please start work on your class presentations. Suggested length...

Accounting
1.2K views

Post 5_Chapter 7: Interest rates and bond valuations Who is on the board of directors...

Accounting
1.2K views

Rubber and steel company is planning to manufacture a new product. The variable manufacturing costs...

Accounting
1.2K views

The undistributed income that remains invested in a company is referred to as: a) Contributed...

Accounting
1.2K views

Read the SC= standard cost; SQ= standard quantity.) Requirement Compute the cost and efficiency variances...

Accounting
1.2K views

eBook Question Content Area Effect of Doubtful Accounts on Net Income During its first year...