Answers: 1
Physics, 21.06.2019 19:00
Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied.
Answers: 2
Physics, 22.06.2019 02:50
Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
Answers: 3
Physics, 22.06.2019 03:30
As part of an industrial process, air as an ideal gas at 10 bar, 400k expands at steady state through a valve to a pressure of 4 bar. the mass flow rate of air is 0.5 kg/s. the air then passes through a heat exchanger where it is cooled to a temperature of 295k with negligible change in pressure. the valve can be modeled as a throttling process, and kinetic and potential energy effects can be neglected. (a) for a control volume enclosing the valve and heat exchanger and enough of the local surroundings that the heat transfer occurs at the ambient temperature of 295 k, determine the rate of entropy production, in kw/k. (b) if the expansion valve were replaced by an adiabatic turbine operating isentropically, what would be the entropy production? compare the results of parts (a) and (b) and discuss.
Answers: 3
Fill in the chart below to identify the name of the process that explains the state of change indica...
Physics, 09.02.2021 22:20
English, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20
Chemistry, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20
Social Studies, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20
World Languages, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20
English, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20
Mathematics, 09.02.2021 22:20