Answered step by step
Verified Expert Solution
Question
1 Approved Answer
question 4&5 Question 4 [15 Marks] 5kg of saturated water vapor at 150C are cooled at constant temperature to a saturated liquid. Using the steam
question 4&5
Question 4 [15 Marks] 5kg of saturated water vapor at 150C are cooled at constant temperature to a saturated liquid. Using the steam tables: a) What is the pressure? (476.8kPa) b) What is the change in total volume? (1.958m3) (3) c) What is the change in total internal energy? (9693kJ) (3) d) What is the change in total enthalpy? (10 571kJ) (3) e) Is H=U+PV verifiable? Justify. (3) Page 1 of 2 Compiled by: Dr MM Mabuza Copyright@2023 Chemical Thermodynamics 2A (CTDCHA2) - 2023 Question 5 [20 MARKS] Steam enters a turbine at 4000kPa and 500C and leave as saturated vapour at 80 kPa as shown in Figure 1 Figure 1: Schematic of a Steam Turbine. The inlet and the outlet pipe diameters are assumed to be the same at 5cm. If the inlet velocity is 200m/s : a) From the general energy balance equation, derive an expression to determine the turbine power output. (8) b) Calculate the mass flow rate for this system. (4.548kg/s) (8) c) Calculate the power output. (3543kW) (4)Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started