Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Question
Number 6
![Sing if the temperature of an
object will vary significantly in space. It depends on the following quantities:
h = heat transfer coefficient [=1 W/(m2 °C)
Lc = volume of object/surface area of object [=] m³/m2
k = thermal conductivity [=1W/(m K)
= m
Use your knowledge of dimensions to determine the proper form of the Biot number,
choosing from the options below.
h Le
(A) Bi =
(B) Bi = h L. k
k Le
(C) Bi =
hk
(D) Bi =
6. A biodegradable fuel having a specific gravity of 0.95 and a viscosity of 0.04 grams per cen-
timeter second [g/(cm s)] is draining by gravity from the bottom of a tank. The drain line is
a plastic 3-inch [in]
the Reynolds number in the pipe for the system and indicate if the flow is laminar, in tran-
sition, or turbulent.
iameter pipe. The velocity is 5.02 meters per second [m/s]. Determine
7. A sludge mixture having a specific gravity of 2.93 and a viscosity of 0.09 grams per
centimeter second [g/(cm s)] is pumped from a reactor to a holding tank. The pipe is a
22-inch [in] diameter pipe. The velocity is 1.8 meters per second [m/s]. Determine the
Reynolds number in the pipe for the system and indicate if the flow is laminar, in
transition, or turbulent.
= 1.02; viscosity
0.0102 grams per centimeter second [g/(cm s)
- Water (specific gravity
is pumped through a 0.5-meter [m] diameter pipe. If the Reynolds number is 1800 for t
system, determine the velocity of the water in units of meters per second [m/s].](https://content.bartleby.com/qna-images/question/11a821cd-954d-4bdb-83d1-f084a03123b3/6450a71f-c80b-40fd-837f-87bc2fd31821/rmk1lfn_processed.jpeg)
Transcribed Image Text:Sing if the temperature of an
object will vary significantly in space. It depends on the following quantities:
h = heat transfer coefficient [=1 W/(m2 °C)
Lc = volume of object/surface area of object [=] m³/m2
k = thermal conductivity [=1W/(m K)
= m
Use your knowledge of dimensions to determine the proper form of the Biot number,
choosing from the options below.
h Le
(A) Bi =
(B) Bi = h L. k
k Le
(C) Bi =
hk
(D) Bi =
6. A biodegradable fuel having a specific gravity of 0.95 and a viscosity of 0.04 grams per cen-
timeter second [g/(cm s)] is draining by gravity from the bottom of a tank. The drain line is
a plastic 3-inch [in]
the Reynolds number in the pipe for the system and indicate if the flow is laminar, in tran-
sition, or turbulent.
iameter pipe. The velocity is 5.02 meters per second [m/s]. Determine
7. A sludge mixture having a specific gravity of 2.93 and a viscosity of 0.09 grams per
centimeter second [g/(cm s)] is pumped from a reactor to a holding tank. The pipe is a
22-inch [in] diameter pipe. The velocity is 1.8 meters per second [m/s]. Determine the
Reynolds number in the pipe for the system and indicate if the flow is laminar, in
transition, or turbulent.
= 1.02; viscosity
0.0102 grams per centimeter second [g/(cm s)
- Water (specific gravity
is pumped through a 0.5-meter [m] diameter pipe. If the Reynolds number is 1800 for t
system, determine the velocity of the water in units of meters per second [m/s].
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