Chapter 7, Problem 7.18P

Plz help w all

At a flow rate of .5000 m3 / h, saturated air at a temperature of 2 ° C is heated sensibly up to a temperature of 40 ° C with the help of a heating coil. Find the amount of heat that should be given to the coil.

Q2) In the Figure (1), air flow in duct at mass flow rate of 495 kg/min , calculate : 1. The diameter of the pipe 2. The length of the pipe 3. Pressure and temperature of air at the exit of the pipe 4. Stagnation pressure losses (Po2–Po1) 5. Velocity of air 6. Change in entropy (Assume : the coefficient of friction for the pipe 0.005) At the exit In the inlet : M1=0.15 Tj=27 °C Р- 0.3 Мра М-0.5 Figure(1)

Air at 900 K, 300 kPa, and 35 m/s enters a nozzle and exits at 450 m/s, 100 kPa. What is the exit temperature? Do this problem in 2 ways: (A) Assume that air is an ideal gas with specific heat capacities that are constant. (B) Assume that air is an ideal gas with specific heat capacities that are not constant.

Q2/ The Air enters Diffuser at (80 kPa, 27°C) with velocity (200 m/s) and the flow rate (2.5 kg/s), and leaves the Diffuser at (42°C). The exit area of the diffuser is (400 cm2). Determine the exit velocity. from table T1=27.C=300K h1=300.19 kJ/kg T2=42.C%3D315K h2=315.27 kJ/kg

Please find the temperature AND the specific enthalpy of water at the compressor exit!Thank you in advance!

Ammonia and air pass through the heat exchanger. While the ammonia is entering as asuperheated vapor at 16 bar pressure and 60C temperature it is leaving as a saturated liquid at thesame pressure but unknown temperature. The ammonia mass flow rate is 400 kg/hour.Air is flowing backward and is heated from 17C to 42C at the constant pressure of 2 bars.NOTE: Find air properties from https://www.peacesoftware.de/einigewerte/luft_e.html a. Draw the ammonia T-v diagram showing the stages, pressures, and temperatures b. How much heat is transferred from ammonia to air assuming no heat transfer to thesurroundings? c.Determine air mass flow rate   Please show all steps in solution thanks

Air at 90 kPa and 10oC enters an adiabatic diffuser steadily with a velocityof 180 m/s and leaves with a low velocity at a pressure of 100 kPa. Theexit area of the diffuser is 4 times the inlet area. Determine the exittemperature.

A nozzle receives an ideal gas flow with a velocity of 25 m/s, and the exit at 100 kPa, 300 K velocity is 250 m/s. Determine the inlet temperature  if the gas is argon.