3-39 Water initially at 200 kPa and 300°C is contained in a piston-cylinder device fitted with stops. The water is allowed to cool at constant pressure until it exists as a saturated vapor and the piston rests on the stops. Then the water continues to cool until the pressure is 100 kPa. On the T-V diagram, sketch, with respect to the saturation lines, the process curves pass- hod TURN ing through the initial, intermediate, and final states of the Loist process water. Label the T, P, and U values for end states on the to t odio curves. Find the overall change in internal energy between the liod niTub 151BW stamisi initial and final states per unit mass of water. IOISISS ment rises. Now Water 200 kPa 300°C will rise in a co FIGURE P3-39 Q

3-39 Water initially at 200 kPa and 300°C is contained in a piston-cylinder device fitted with stops. The water is allowed to cool at constant pressure until it exists as a saturated vapor and the piston rests on the stops. Then the water continues to cool until the pressure is 100 kPa. On the T-V diagram, sketch, with respect to the saturation lines, the process curves pass- hod TURN ing through the initial, intermediate, and final states of the Loist process water. Label the T, P, and U values for end states on the to t odio curves. Find the overall change in internal energy between the liod niTub 151BW stamisi initial and final states per unit mass of water. IOISISS ment rises. Now Water 200 kPa 300°C will rise in a co FIGURE P3-39 Q

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

3-39 Water initially at 200 kPa and 300°C is contained in a
piston-cylinder device fitted with stops. The water is allowed
to cool at constant pressure until it exists as a saturated vapor
and the piston rests on the stops. Then the water continues to
cool until the pressure is 100 kPa. On the T-v diagram, sketch,
with respect to the saturation lines, the process curves pass-
1stams!
od on
TURNACE
ing through the initial, intermediate, and final states of the
1992 palam
11.
water. Label the T, P, and U values for end states on the process
artita ne
odrow
OFTİ 21 nucfortyd beinvarian
curves. Find the overall change in internal energy between the
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initial and final states per unit mass of water.
al state
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uliod
Anub 1516w
3-150
3-160 In
Water
200 kPa
300°C
3-17C
ment rises. Now
on top of air Obs
will rise in a co FIGURE P3-39
180
Q

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