subject
Physics, 29.02.2020 03:29 des12410

An oxygen tank with a volume of 2.5 ft3 is kept in a room at 50 F. An engineer has used the ideal gas equation of state to determine that if the tank is first evacuated and then charged with 35.3 lbm of pure oxygen, its rated maximum allowable working pressure (MAWP) will be attained. Operation at pressures above this value is considered unsafe.(a) What is the maximum allowable working pressure (psig) of the tank?(b) You suspect that at the conditions of the fully charged tank, ideal gas behavior may not be a good assumption. Use the SRK equation of state to obtain a better estimate of the maximum mass of oxygen that may be charged into the tank. Did the ideal gas assumption lead to a conservative estimate (on the safe side) or a nonconservative estimate of the amount of oxygen that couldbe charged?(c) Suppose the tank is charged and ruptures before the amount of oxygen calculated in part (b)enters it. (It should have been able to withstand pressures up to four times the MAWP.) Think of at least five possible explanations for the failure of the tank below its rated pressure limit.

ansver
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 06:20, jonmorton159
Clothing made of several thin layers of fabric with trapped air in between, often called ski clothing, is commonly used in cold climates because it is light, fashionable, and a very effective thermal insulator. so it is no surprise that such clothing has largely replaced thickand heavy old-fashioned coats. (a) consider a jacket made of five layers of 0.1-mm-thick synthetic fabric (k = 0.13 w/m·°c) with 1.5-mm-thick air space (k = 0.026 w/m·°c) between the layers. assuming the inner surface temperature of the jacket to be 28°c and the surface area to be 1.25 m2, determine the rate of heat loss through the jacket when the temperature of the outdoors is 0°c and the heat transfer coefficient at the outer surface is 25 w/m2·°c. (b) what would your response be if the jacket is made of a single layer of 0.5-mm-thick synthetic fabric? what should be the thickness of a wool fabric (k = 0.035 w/m·°c) if the person is to achieve the same level of thermal comfort wearing a thick wool coat instead of a five-layer ski jacket?
Answers: 1
image
Physics, 22.06.2019 16:00, gurlnerd
Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not
Answers: 1
image
Physics, 22.06.2019 18:50, naiomireyes74p2aybs
What accounts for an increase in the temperature of a gas that is kept at constant volume? a. energy has been removed as heat from the gas. b. energy has been added as heat to the gas. c. energy has been removed as work done by the gas. d. energy has been added as work done by the gas.
Answers: 2
image
Physics, 22.06.2019 22:40, laskew37221
Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth
Answers: 1
You know the right answer?
An oxygen tank with a volume of 2.5 ft3 is kept in a room at 50 F. An engineer has used the ideal ga...

Questions in other subjects: