Engineering, 18.02.2020 22:04 XDESOCR
When a compressed gas storage tank fails, the resultant explosion occurs so rapidly that the gas cloud can be considered adiabatic and assumed to not mix appreciably with the surrounding atmosphere. Consider the failure of a 2.5-m3 air storage tank initially at 15 bar. Atmospheric pressure is 1 bar, CP 7R/2. Provide an estimate by assuming reversibility.
a) Calculate the work done on the atmosphere. Does the reversibility approximation over-estimate or under-estimate the actual work?
b) A detonation of 1 kg of TNT releases about 4.5 MJ of work. Calculate the equivilent mass of TNT that performs the same work as in part (a).
Answers: 1
Engineering, 04.07.2019 18:10
Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.
Answers: 1
Engineering, 04.07.2019 18:20
Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.
Answers: 3
Engineering, 04.07.2019 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
Engineering, 04.07.2019 18:20
Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process
Answers: 1
When a compressed gas storage tank fails, the resultant explosion occurs so rapidly that the gas clo...
Mathematics, 21.10.2021 01:00
Social Studies, 21.10.2021 01:00
Mathematics, 21.10.2021 01:00
Mathematics, 21.10.2021 01:00
Chemistry, 21.10.2021 01:00
Chemistry, 21.10.2021 01:00
Mathematics, 21.10.2021 01:00
Chemistry, 21.10.2021 01:00
Mathematics, 21.10.2021 01:00
History, 21.10.2021 01:00
Mathematics, 21.10.2021 01:00
History, 21.10.2021 01:00
History, 21.10.2021 01:00
Mathematics, 21.10.2021 01:00