Recent questions tagged exergy balance equation

+1 vote

1 answer

Assume that the chances of a patient having a heart ****** is 40%. It is also assumed that a meditation and yoga course reduce

asked Apr 6, 2019 in Class 12 by kratos

+2 votes

1 answer

A long metallic bar is carrying heat from one of its ends to the other end under steady-state.

asked Mar 23, 2019 in Class 12 by kratos

+2 votes

1 answer

Air at 600 K flows with 3 kg/* into a heat exchanger and out at 100°C. How much (kg/*) water coming in at 100 kPa, 20°C

asked Mar 9, 2019 in Mathematics by kratos

+1 vote

1 answer

Evaluate the steady state exergy fluxes due to a heat transfer of 250 W through a wall with 600 K on one side and 400 K on the other side.

asked Feb 22, 2019 in Mathematics by kratos

+3 votes

1 answer

A turbine at the bottom of a dam has a flow of liquid water through it. How does that produce power? Which terms in the energy

asked Jan 4, 2019 in Mathematics by kratos

+1 vote

1 answer

A large stationary diesel engine produces 20 000 hp with a thermal efficiency of 40%. The exhaust gas, which we assume is air,

asked Dec 25, 2018 in Mathematics by kratos

+1 vote

1 answer

A water turbine using nozzles is located at the bottom of Hoover Dam 575 ft below the surface of Lake Mead.

asked Dec 22, 2018 in Mathematics by kratos

+2 votes

1 answer

In a boiler you vaporize some liquid water at 100 kPa flowing at 1 m/*. What is the velocity of the saturated vapor at 100 kPa if the pipe size

asked Dec 5, 2018 in Mathematics by kratos

+1 vote

1 answer

Make a control volume that includes the steam flow around in the main turbine loop in the nuclear propulsion system

asked Dec 2, 2018 in Mathematics by kratos

+1 vote

1 answer

Is the exergy equation independent of the energy and entropy equations?

asked Nov 13, 2018 in Mathematics by kratos

+1 vote

1 answer

In a steady state single flow * is either constant or it increases. Name the process.

asked Nov 6, 2018 in Mathematics by kratos

+3 votes

1 answer

Consider the car engine and assume the fuel energy is delivered at a constant 1500 K. The 70% of the energy that is lost is 40% exhaust flow

asked Oct 31, 2018 in Mathematics by kratos

+3 votes

1 answer

Find the specific flow exergy in and out of the steam turbine in Example In a steady state single flow * is either constant

asked Oct 18, 2018 in Mathematics by kratos

+3 votes

1 answer

The condenser in a power plant cools 10 kg/* water at 10 kPa, quality 90% so it comes out as saturated liquid at 10 kPa. The cooling

asked Oct 11, 2018 in Mathematics by kratos

+2 votes

1 answer

A windmill takes a fraction of the wind kinetic energy out as power on a shaft. In what manner does the temperature

asked Oct 6, 2018 in Class 11 by kratos

+2 votes

1 answer

A car engine burns 5 kg fuel (equivalent to addition of QH) at 1500 K and rejects energy to the radiator and the exhaust

asked Oct 5, 2018 in Mathematics by kratos

+2 votes

1 answer

Liquid water is sprayed into the hot gases before they enter the turbine section of a large gasturbine power plant. It is claimed that the larger mass

asked Oct 5, 2018 in Class 10 by kratos

+2 votes

1 answer

A large stationary diesel engine produces 15 MW with a thermal efficiency of 40%. The exhaust gas, which we assume is air,

asked Sep 19, 2018 in Mathematics by kratos

+3 votes

1 answer

If you compress air the temperature goes up, why? When the hot air, high P flows in long pipes it eventually cools to ambient T.

asked Aug 24, 2018 in Mathematics by kratos

+3 votes

1 answer

A gas turbine setup to produce power during peak demand is . The turbine provides power to the air compressor

asked Aug 13, 2018 in Mathematics by kratos

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