Question
In: Other
3. If a diffuser does no net work and has no net heat transfer, it is...
3. If a diffuser does no net work and has no net heat transfer, it is ineffective.
a. true
b. false
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4. In a heat exchanger, the means of heat transfer is/are _____
a. Conduction
b. Convection
c. Radiation
d. A and B
e. B and C
f. A and C
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5. Conservation of mass applies to steady systems, but not to unsteady systems.
a. TRUE
b. FALSE
c. There is not enough information to give a definitive answer
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Some theoretical questions in Thermodynamics require your clarification and explanations.
Solutions
Amanda K answered 5 months agoRelated Solutions
Course : Heat Transfer question 3 a-) In heat transfer by radiation, describe the swallowing,reflection, passing...
Course : Heat Transfer
question 3
a-) In heat transfer by radiation, describe the
swallowing,reflection, passing coefficients, write down the
relation between them.
b-)Write the expression radiative heat transfer between two
surfaces with different areas in a closed volume.
Heat Transfer Mechanisms What are the four mechanisms of heat/energy transfer? Give an example for each....
Heat Transfer Mechanisms
What are the four mechanisms of
heat/energy transfer? Give an example for each. What happens to
energy when water evaporates – gained or lost? What happens to
energy when water condenses –gained or lost? Explain how
thermohaline circulation of ocean water affects global temperature
distribution. Must be 350 words long.
give a good explanation and examples
of each. this is physical geography. they have to be long
explanation.
Propose a reasonable value for pressure, volume, and temperature etc., the heat transfer Q, work done...
Propose a reasonable value for pressure, volume, and temperature
etc., the heat transfer Q, work done W, and internal energy change
ΔU for each of the steps in the Carnot cycle and thermal
efficiency.
There are three heat transfer mechanisms. Define each type and briefly explain how they work. Additionally...
There are three heat transfer mechanisms. Define each type and
briefly explain how they work. Additionally define insulation and
how it contrasts against these transfer mechanisms
HEAT TRANSFER: HEAT EXCHANGER Oil flows in a heat exchanger with a mass flow rate of...
HEAT TRANSFER: HEAT EXCHANGER
Oil flows in a heat exchanger with a mass flow rate of 20 kg/s
and is to be cooled from 175 to 65°C with water as a coolant
flowing at a rate of 30 kg/s and an inlet temperature of 12°C. The
overall heat transfer coefficient is U = 1250
W/m2⋅K.
a) Sketch the temperature profile and calculate the mean
temperature for parallel flow, counter flow, and cross flow heat
exchangers..
b) Determine the area required...
heat transfer The double-glazed window with a height of 1.2m and a width of 2m has...
heat transfer
The double-glazed window with a height of 1.2m and a width of 2m
has a gap of stagnant air (k = 0.026W / m ° C) with a width of 12mm
between the glass of 3mm (k = 0.78W / m ° C). On a day when the
outside temperature is kept at 24 ° C, find the continuous heat
transfer rate and inner surface temperature in this glass window.
(Take the heat transfer coefficients h1 = 10W...
What is transient heat transfer? why it is important?
What is transient heat transfer? why it is important?
Heat transfer In a test in a double tube heat exchanger the following data are obtained...
Heat transfer
In a test in a double tube heat exchanger the following data are
obtained
For hot fluid
Flow = 11.6 gal / sec
Outlet temperature = 30.1 ° C
Inlet temperature = 32 ° C
For cold fluid
Flow 11gal / min
Outlet temperature 25.1 ° C
Inlet temperature 24.2 ° C
For the fluid consider
k = 0.49 w / mK
cp = 3729.95 J / kgK
Prandtl number = 14.29
Density = 1035.02kg / m3
Get:...
A heat exchanger is used to transfer heat from a steam stream to a chlorine gas...
A heat exchanger is used to transfer heat from a steam stream to
a chlorine gas stream. 100 kg of steam at 1 bar and 250°C enters
the heat exchanger and leaves the exchanger as saturated steam at 1
bar. Chlorine gas enters the exchanger at 1 bar and 33.0°C and
leaves the exchanger at 132.0°C. Assume the heat exchanger is
adiabatic.
A)What is the specific enthalpy of the inlet steam stream? (Use
liquid water at 0.01°C as a reference...
What is the therotiacal And The expertmatla heat transfer cofficnent for heat exchanger in my case...
What is the therotiacal And The expertmatla heat transfer
cofficnent for heat exchanger in my case shell and tube
Therotical ?
formual ??
expermantial ?
formula ?
I am uisng LMTD method
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