CHEMICAL ENGINEERING 2F04 -2014
Assignment #1 Solution
In a closed piston-cylinder apparatus of 0.1 m3, air at 300C and 130 kPa is heated to 400C at constant pressure.
The diameter of the cylinder is 0.4 m. For a simple ideal gas a good approxi
d. What is the lost work associated with operating this process (kW)?
e. What is the rate of entropy generation associated with this process (kW/K)?
3. For a Carnot engine with a thermal efficiency of 55% the work produced is 90 MW.
The cold sink for this
Chemical Engineering 2F04 Midterm 1
10 Feb 2014
Open notes, open books and any calculator is allowed.
No computers or cell phones are allowed
A frictionless piston with a mass of 6.0 kg is tted within a perfectly insulated
Chemical Engineering 2F04 Midterm 3
March 28th, 2012
1. A cup with 500-ml of cool water at 283 K is removed from a refrigerator. It
equilibrates to room temperature at 298K and the pressure is constant and equal to
1 bar. Calculate the e
Chemical Engineering 2F04 - Midterm 1.2
Name: Student ID: Feb. 15, 2012
Open notes, open book and any calculator is allowed. No computers or cell phones.
1. One mole of an ideal gas (Cp=7R/2 and CV=5R/2, where R 8.314 J mot1 K) in a
Chemical Engineering 2F04 - Midterm 2
Name: Student ID: . March 7, 2012
Open notesLopen book and any calculator is allowed. No computers or cell phones.
A. WHEN USING POLYNOMIALS FOR Cg CALCULATIONS, JUST CARRY THE
FIRST TWO TERMS
YOU MAY NOT NE
CHEMICAL ENGINEERING 2F04
Assignment 3 - Solution
a. Since the normal boiling point of n-butane is -0.6 C, there is no phase change
within the process.
b. What is the molar flow rate of n-butane in this problem (kmol/s)?
By assuming toluene/n
CHEMICAL ENGINEERING 2F04
Problem 1. A heat engine is operating with a hot source at 400 which delivers 4.2
MW of heat to the Carnot Engine. The cold sink is at 20 Determine the following:
a) What is the thermal efficiency of this heat e
Chemical Engineering 2F04 - Midterm 1
Feb. 3th, 2012
Open Notes, Open book and any calculator is allowed. No computers or cell phones.
1. A cylinder of 0.2 m diameter containing an ideal gas is sealed with a frictionless piston.
Interpolate in Table B.7 to find P at which V =1.673 at 400oC, and then interpolate again
to find U at 400oC and that pressure:
1.673 m 3 /g
3.3 bar , U (400 o C, 3.3 bar) = 2966 kJ/kg
m CHEMICAL 2507 k
CHEMICAL ENGINEERING PRINCIPLES II
CHEM ENG 2F04
Term II, 2013/2014
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