Consider a 7.6-cm-long and 3-cm-diameter cylindrical Iamb meat chunk (p = 1030 Kg/m 3 , c p = 3 .49 kJ/kg .K), k = 0 .456 W/m .K, α = 1 .3 × 10 -7 m 2 /s) . Fifteen such meat chunks initially at 2°C are dropped into boiling waler at 95°C with a heat transfer coefficient of 1200 W/m 2 K. The amount of heat transfer during the first 8 min of cooking is (a) 71 kJ (b) 227kJ (c) 238 kJ (d) 269k) (e) 307 kJ
Consider a 7.6-cm-long and 3-cm-diameter cylindrical Iamb meat chunk (p = 1030 Kg/m 3 , c p = 3 .49 kJ/kg .K), k = 0 .456 W/m .K, α = 1 .3 × 10 -7 m 2 /s) . Fifteen such meat chunks initially at 2°C are dropped into boiling waler at 95°C with a heat transfer coefficient of 1200 W/m 2 K. The amount of heat transfer during the first 8 min of cooking is (a) 71 kJ (b) 227kJ (c) 238 kJ (d) 269k) (e) 307 kJ
Solution Summary: The author calculates the characteristic length of lamb meat chunk by approximating it as a long cylinder.
Consider a 7.6-cm-long and 3-cm-diameter cylindrical Iamb meat chunk
(p = 1030 Kg/m
3
,
c
p
= 3
.49 kJ/kg
.K), k = 0
.456 W/m
.K,
α
= 1
.3
×
10
-7
m
2
/s)
. Fifteen such meat chunks initially at 2°C are dropped into boiling waler at 95°C with a heat transfer coefficient of 1200 W/m2 K. The amount of heat transfer during the first 8 min of cooking is
3-55 A multifluid container is connected to a U-tube,
as shown in Fig. P3–55. For the given specific gravities
and fluid column heights, determine the gage pressure at
A. Also determine the height of a mercury column that
would create the same pressure at A. Answers: 0.415 kPa,
0.311 cm
I need help answering parts a and b
Required information
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.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Water
200 kPa
300°C
On the T-V diagram, sketch, with respect to the saturation lines, the process curves passing through the initial, intermediate, and final states of the water. Label the
T, P, and V values for end states on the process curves.
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