Thermodynamic questions solutions. You need a solution after 10 minutes Q4/1. in the steam turbine the common? sources of the irreversibilities arethe power net of the steam turbine. Oheat loss to the surrounding and pressuredrop.the good isolation of the steam turbine. OQ4/2. in the Rankine cycle increasing the?pressure of the steam generator results inerodes the turbine blades. Odecrease the moisture content of the steamat the turbine exit.air leakage to the condenser. O

Four of the most common causes of irreversibility are friction, unrestrained expansion of a fluid,…

Answered: Q4/1. in the steam turbine the common *…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Each of the following statements describes a way of coping with temperature variation. Which scenario most likely includes positive heat transfer through convection? That is, in which scenario does Hconvection most likely have a positive (+) sign? Hanimal = +SR + IRin – IRout +/- Hconvection +/- Hconduction - Hevaporation + Hmetabolic Select one: a. A rabbit basking in the sun early in the morning. b. A lizard resting in the shade in a hot desert in the middle of the day. c. A bumblebee vibrating its flight muscles before flight. d. A ground squirrel hibernating in the winter. e. A bird fluffing its feathers on a cold day.
An air pump is used to fill a rigid gas bottle with air. The pump is connected to the gas bottle via a rigid pipe. The pump consists of a piston of internal diameter d=0.08 m and a cylinder with a stroke L=0.3m. Air enters the pump through an orifice located at the bottom of the cylinder to raise the pressure in the pump to atmospheric pressure. Air, drawn into the pump through the orifice, mixes completely and adiabatically with the cylinder contents. A valve allows the bottle's refill. The valve opens when the pump pressure is equal to the gas bottle. The valve is always closed when the pump pressure is below the gas bottle pressure. Pressure drop across the valve can be neglected. The bottle, the connecting pipe and the pump are thermally insulated. Air in the pump and connecting pipe undergoes isentropic compression and expansion processes. I F-one The working fluid (air) can be considered a perfect gas with R=287 J/KgK, cp=1005 J/KgK and y=1.4. Initially the piston is located at…
An air pump is used to fill a rigid gas bottle with air. The pump is connected to the gas bottle via a rigid pipe. The pump consists of a piston of internal diameter d=0.08 m and a cylinder with a stroke L=0.3m. Air enters the pump through an orifice located at the bottom of the cylinder to raise the pressure in the pump to atmospheric pressure. Air, drawn into the pump through the orifice, mixes completely and adiabatically with the cylinder contents. A valve allows the bottle's refill. The valve opens when the pump pressure is equal to the gas bottle. The valve is always closed when the pump pressure is below the gas bottle pressure. Pressure drop across the valve can be neglected. The bottle, the connecting pipe and the pump are thermally insulated. Air in the pump and connecting pipe undergoes isentropic compression and expansion processes. I F-one The working fluid (air) can be considered a perfect gas with R=287 J/KgK, cp=1005 J/KgK and y=1.4. Initially the piston is located at…

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Q4/1. in the steam turbine the common * ? sources of the irreversibilities are the power net of the steam turbine. heat loss to the surrounding and pressure drop. the good isolation of the steam turbine. O