HEAT&MASS TRANSF. (LL) W/CONNECT<CUSTOM>
6th Edition
ISBN: 9781266141652
Author: CENGEL
Publisher: MCG
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3. The structure in Figure 3 is loaded by a horizontal force P = 2.4 kN at C. The roller at E is
frictionless. Find the axial force N, the shear force V and the bending moment M at a section
just above the pin B in the member ABC and illustrate their directions on a sketch of the segment
AB.
B
P
D
A
65°
65°
E
all dimensions in meters
Figure 3
4. The distributed load in Figure 4 varies linearly from 3wo per unit length at A to wo per unit
length at B and the beam is built in at A. Find expressions for the shear force V and the bending
moment M as functions of x.
3W0
Wo
A
L
Figure 4
2
B
1. The beam AB in Figure 1 is subjected to a uniformly distributed load wo = 100 N/m. Find
the axial force N, the shear force V and the bending moment M at the point D which is midway
between A and B and illustrate their directions on a sketch of the segment DB.
wo per unit length
A
D'
B
all dimensions in meters
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- Refrigerant 134a (Table B6, p514 of textbook) enters a tube in the evaporator of a refrigerationsystem at 132.73 kPa and a quality of 0.15 at a velocity of 0.5 m/s. The R134a exits the tube as asaturated vapor at −21°C. The tube has an inside diameter of 3.88 cm. Determine the following,a. The pressure drop of the R134a as it flows through the tube (kPa)b. The volumetric flow rate at the inlet of the tube (L/s)c. The mass flow rate of the refrigerant through the tube (g/s)d. The volumetric flow rate at the exit of the tube (L/s)e. The velocity of the refrigerant at the exit of the tube (m/s)f. The heat transfer rate to the refrigerant (kW) as it flows through the tubearrow_forwardWater enters the rigid, covered tank shown in Figure P3.2 with a volumetric flow rate of 0.32L/s. The water line has an inside diameter of 6.3 cm. The air vent on the tank has an inside diameterof 4.5 cm. The water is at a temperature of 30°C and the air in the tank is at atmospheric pressure(1 atm) and 30°C. Determine the air velocity leaving the vent at the instant shown in the figurearrow_forwardUsing method of sections, determine the force in member BC, HC, and HG. State if these members are in tension or compression. 2 kN A 5 kN 4 kN 4 kN 3 kN H B C D E 3 m F 2 m -5 m 5 m- G 5 m 5 m-arrow_forward
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