Engineering, 05.10.2019 11:30 yourgirlnevaeh
Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. the pressure ratio across each stage of the compressor and turbine is 3. the air enters each stage of the compressor at 300 k and each stage of the turbine at 1200 k. determine the back work ratio and the thermal efficiency of the cycle, assuming (a) no regenerator is used and (b) a regenerator with 75 percent effectiveness is used. use variable specific heats.
Answers: 2
Engineering, 04.07.2019 18:10
Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.
Answers: 2
Engineering, 04.07.2019 18:10
Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way
Answers: 2
Engineering, 04.07.2019 19:10
When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?
Answers: 2
Engineering, 04.07.2019 19:10
Starting wih an energy balance on a rectangular volume element, derive the one- dimensional transient heat conduction equation for a plane wall with constant thermal conductivity and no heat generation.
Answers: 1
Consider an ideal gas-turbine cycle with two stages of compression and two stages of expansion. the...
Mathematics, 18.03.2021 22:00
Biology, 18.03.2021 22:00
Geography, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00
History, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00
Biology, 18.03.2021 22:00
Computers and Technology, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00
Chemistry, 18.03.2021 22:00
Mathematics, 18.03.2021 22:00