A SPHERICAL BALOON IS 40 FEET IN DIAMETER AND SURROUNDED BY AIR AT 600F AND 29.92 in Hg abs. (a) If the balloon is filled with hydrogen at a temperature of 700F and atmospheric pressure, what total load can it lift? (b) if it contains helium instead of hydrogen, other conditions remaining the same, what load can it lift? (c) Helium is nearly twice as heavy as hydrogen. Does it have half the lifting force? R for hydrogen is 766.54 and for helium is 386.04 ft.lb/lb0R. Ans. (a) 2381 lb; (b) 2209 lb
A SPHERICAL BALOON IS 40 FEET IN DIAMETER AND SURROUNDED BY AIR AT 600F AND 29.92 in Hg abs. (a) If the balloon is filled with hydrogen at a temperature of 700F and atmospheric pressure, what total load can it lift? (b) if it contains helium instead of hydrogen, other conditions remaining the same, what load can it lift? (c) Helium is nearly twice as heavy as hydrogen. Does it have half the lifting force? R for hydrogen is 766.54 and for helium is 386.04 ft.lb/lb0R. Ans. (a) 2381 lb; (b) 2209 lb
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter5: Analysis Of Convection Heat Transfer
Section: Chapter Questions
Problem 5.5P: Evaluate the dimensionless groups hcD/k,UD/, and cp/k for water, n-butyl alcohol, mercury, hydrogen,...
Related questions
Topic Video
Question
A SPHERICAL BALOON IS 40 FEET IN DIAMETER AND SURROUNDED BY AIR AT 600F AND 29.92 in Hg abs. (a) If the balloon is filled with hydrogen at a temperature of 700F and atmospheric pressure, what total load can it lift? (b) if it contains helium instead of hydrogen, other conditions remaining the same, what load can it lift? (c) Helium is nearly twice as heavy as hydrogen. Does it have half the lifting force? R for hydrogen is 766.54 and for helium is 386.04 ft.lb/lb0R. Ans. (a) 2381 lb; (b) 2209 lb
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 2 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
Principles of Heat Transfer (Activate Learning wi…
Mechanical Engineering
ISBN:
9781305387102
Author:
Kreith, Frank; Manglik, Raj M.
Publisher:
Cengage Learning
Principles of Heat Transfer (Activate Learning wi…
Mechanical Engineering
ISBN:
9781305387102
Author:
Kreith, Frank; Manglik, Raj M.
Publisher:
Cengage Learning