Chapter 7, Problem 7.154EP

p61#6.  Carbon Dioxide at p₁ = 500 psia,v₁ = ft/min, and t₁ = 200°F are cooled at constant volume to 130°F in an internally reversible manner. For m=0.9 lbm/min, determine in ∫pdv and -∫vdp. For nonflow process, find p2, change of internal energy, change of enthalpy, and Q. Also, compute change of entropy.

Please help with detailed solution.

*** ***Solve the following problems, correctly and systematically, and show all the necessary figures. Show your correct and complete solution neatly. There are required 2000 kW of compressor power to handle air adiabatically from 1 atmosphere, 27 °C, to 305 kPaa. The initial air velocity is 20 m/s and the final velocity is 85 m/s. a) If the compression is isentropic, find the compressor capacity, in m3/s. b) If the compression process is irreversible adiabatic to a temperature of 160 °C, with the capacity found in (a), determine the compressor power input, in Hp.

2) In a steady flow of air through a nozzle, the enthalpy decreases by 40 kj. Assuming there is no other energy changes other than KE det the velocity at sec 2, if the vel at sec 1 is 100 m/s

Sketch and label the nozzle. Sketch and label the process on a P-v diagram, also mention all numbers on the process of P-V diagram please. 7.15 The exit nozzle in a jet engine receives air at 1200 K, 150 kPa with negligible kinetic energy. The exit pressure is 80 kPa, and the process is reversible and adiabatic. Use constant specific heat at 300 K to find the exit velocity.

Please show your complete solution. Thank you! During the reversible process executed by the non-flow system, the pressure increases 334.79 kPa to 1378.96 kPa in accordance with PV=C and the internal energy increase is 22, 577 J, the initial volume is 85 liters. Find the heat.

Air enters a turbine at temperature and pressure of 800°C, 10bar respectively. The actual exit airtemperature is 180°C. The turbine isentropic efficiency is estimated to be 85%. Calculate the turbine exit pressure and the actual expansion index (n).

PLEASE ANSWER WITH COMPLETE SOLUTION AND DIAGRAM.

A confined volume of 27 moles an ideal gas (with y = 1.42) goes through an expansion process so at the final volume is six times the initial volume, and the final pressure is one eighth the initial ressure. a. What is the final temperature in terms of the initial temperature? b. What is the total change in entropy for the gas?