Logo
Home Study Material Contact Search
AI Chat FREE
  1. engineering
  2. mechanical engineering
  3. airflow through a long, 0.15-m-square air conditio

Airflow through a long, 0.15-m-square air conditioning duct maintains the outer duct surface temperature at 10°C....

90.2K

Verified Solution

Question

Mechanical Engineering

Airflow through a long, 0.15-m-square air conditioning ductmaintains the outer duct surface temperature at 10°C. If thehorizontal duct is uninsulated and exposed to air at 35°C in thecrawlspace beneath a home, what is the heat gain per unit length ofthe duct? Evaluate the properties of air at 300 K. For the sides ofthe duct, use the more accurate Churchill and Chu correlations forlaminar flow on vertical plates.

What is the Rayleigh number for free convection on the outersides of the duct? 7709251

What is the free convection heat transfer coefficient on theouter sides of the duct, in W/m2·K? 4.87

What is the Rayleigh number for free convection on the top ofthe duct? 965073

What is the free convection heat transfer coefficient on the topof the duct, in W/m2·K? NEED HELP HERE

What is the free convection heat transfer coefficient on thebottom of the duct, in W/m2·K? NEED HELP HERE

What is the total heat gain to the duct per unit length, in W/m?NEED HELP HERE

I cant figure out 4,5 and 6. I swear they are correct but theonline homework won't take it.

Answer & Explanation Solved by verified expert
3.6 Ratings (330 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

Biology
1.2K views

You hypothesize that antlers of male deer are costly signals of fighting ability that are directed...

Medical Sciences
1.2K views

What effect do beta-blockers have on cardiac output and hemodynamics?  Which specific structures do these medications affect?

Psychology
1.2K views

Select one of your ASCRIBED statuses and the roles that go along with it. Do you...

Mechanical Engineering
1.2K views

Air enters the diffuser of a turbojet engine at 18 kPa, 216 K, with a volumetric...

Geometry
1.2K views

What is the area of the figure below 3 5 cm Select one a 56...

Basic Math
1.2K views

Money Market Accounts Express Accounts Basic Accounts Lifeline Accounts OII III IV I O I...

Accounting
1.2K views

Ty Koon, Harry Pitts and Eileen Dover are the founders of Sharpe Incorporated. The charter...

Accounting
1.2K views

1) What is the supplementary record that a company creates and maintains in a separate...

Accounting
1.2K views

If you were a banker considering a loan for a small business, which of the...

Accounting
1.2K views

Describe absolute advantage and comparative advantage with examples

Finance
1.2K views

(Complex present value) How much do you have to deposit today so that beginning 14...

Finance
1.2K views

you are considering purchasing stock in Canyon Echo. you feel the company will increase it's...