ME 310 Thermodynamics and Heat Transfer
Exam 3 Fall 2010
Time limit: 60 minutes
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Jlé
l. A 5.0 cm outer diameter, 4.5 cm inner diameter steam pipe (A181 .3194) is exposed to room air

Ile 310 Thermodynamics and Heat Transfer
Exam III Spring 2009
Time limit: 60 minutes
Name (Please Print)
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3 H'-
1. A metal tube (AISI 3164) has a uid owing through the inside at a temperature of 30°C. The

-ME 310 Thermodynamics and Heat Transfer
EXAM 2 - Spring 2011
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_
1) The dueting in a ventilation system operates at steady state and is shown in the figure. Air flows
through the duc

ME 310 Thermodynamics and Heat Transfer
Quiz 2 Fall 2007
Time limit: 50 minutes
Name (Please Print)
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1. Water is heated as it ows through a constant area duct inside a heat exchanger. The water
enters as a

ME 310 Thermodynamics and Heat Transfer
Quiz 1 Fall 2007
Time limit: 50 minutes
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1. One-fourth kg of a gas contained in a piston-cylinder assembly undergoes a constant-pressure
proc

ME 310 Thermodynamics and Heat Transfer
Quiz 3 Fall 2007
Time limit: 50 minutes
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1. Three materials are used to make a composite plane wall for a furnace. The rst material (A) has a

2. A Rankine cycle operates with steam entering the turbine at 180 bar and 560C and exits at 0.06
bar. The pump input power per mass flow rate of steam is 22.5 kJ/kg and the heat rejected per
mass flow rate of steam from the condenser is 2073 kJ/kg. The

ME 310 Thermodynamics and Heat Transfer
Exam 3 Spring 2008
lulu-Em
Name (Please Print)
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1. A 2.0 cm internal radius stainless steel (A181 316) pipe has a uid owing through the center at
a temperature of 10

mg" 3/0 (575% J jot0077M Far-cc 290?
Question 1 10 points
In the manufacturing of 20 mm diameter stainless steel ball bearings (assume k=21.3
W/m-K, cp=576 J/kgK, density=8238 kg/m3), the bearings must be quenched (cooled
rapidly) to provide the necessary

ME 310 Thermodynamics and Heat Transfer
Exam 1 Spring 2009
Time limit: 60 minutes
Name (Please Print)
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1. A rigid tank with a volume of 2 m3 contains air initially at 1.5 bar, 280 K. The air receives 6

ME 310 Thermodynamics and Heat Transfer
Exam 1 Fall 2010
Time limit: 60 minutes
Name (Please Print)
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1. Water in a piston-cylinder assembly, initially at a temperature of 99.630C and a quality of65%,
i

Definitions
Closed-(fixed mass; boundary moves) work and heat can cross boundary
Open- control volume-work, heat and mass can cross
Adiabatic- process without heat transfer- Q=0 Isothermal-process at constant temperature T=

Energy Balance
0=Q/m-W/m+m[(h1-h2)+(V12-V22)/2+g(z1-z2)]
0=Q-W+m1(h1+V12/2+gz1)- m2(h2+V22/2+gz2)
(hA-hB)=c(TA-TB)+v(PA-PB) c=4.179
M=(AV)*p1)/R1*T1
Stead State
m1=m2+m3
A=(m*v(table t-4)/Velocity
h=hf+xhfg
Second law

ME 310 Thermodynamics and Heat Transfer
Exam 1 - Spring 2011
Time limit: 60 minutes
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1. A closed, rigid tank contains 2.0 kg of air, initially at 400 K, 0.2 MPa. A heat transfer in

ME 310 Thermodynamics and Heat Transfer
EXAM 2 Fall 2010
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1. Steam enters a de-superheater operating at steady-state at 30 bars, 320°C, where it is mixed with
liquid water at 25 bars,

ME 310 Thermodynamics and Heat Transfer
Exam H Spring 2009
Time limit: 60 minutes
1.
SOLLATLOU
Name (Please Print)
I have neither given nor received aid on this exam
A compressor for Refrigerant 134a has inlet conditions of 3.2 bar and 10°C and exit c

1) Two kg of water is contained initially at 1.0 MPa and a quality of 90% in a rigid, well-insulated
vessel. A heater in the tank transfers energy to the water at a rate of 60 W. Determine the time, in h,
for the temperature of the tank to reach 200°C.