Bundle: Refrigeration and Air Conditioning Technology, 8th + MindTap HVAC, 4 terms (24 months) Printed Access Card
8th Edition
ISBN: 9781337190350
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Chapter 33, Problem 19RQ
How is expansion in hot water pipes handled?
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It is required to treat 130 kmol/hr of chloroform-air feed gas mixture that contains
12% chloroform. It is required to remove 93% of chloroform using 150 kmol/hr of
solvent that contains 99.6% water and 0.4% chloroform. The cross sectional area of the
column is 0.8 m². Calculate the column height using the following data; kx'.a = 1.35
(kmol/m³.s (Ax)), and ky'.a = 0.06 (kmol/m³.s (Ay)), kx/ky = 1.35, and the equilibrium
data are:
X 0 0.0133 0.033
y 0 0.01 0.0266
0.049 0.064 0.0747 0.0933 0.1053
0.0433 0.06 0.0733
0.111
0.1
0.12
0.14
४
B:
Find the numerical solution for the 2D equation below and calculate the temperature values for
each grid point shown in Fig. 2 (show all steps).
(Do only one trail using following initial values and show the final matrix)
[T1]
T₂
T3
[T] 1
=
[0]
0
0
d
dx
dx)
(ka)+4(ka)
=
dy
-20xy, k = 1 + 0.3 T
ge
L=3cm, 4x= Ay
B.Cs.:
at x=0=LT=0°C
at y=0-L T=10°C
Fig. (2)
: +0
العنوان
use only
Two rods fins) having same dimensions, one made orass (k = 85 Wm
K) and the mer of copper (k = 375 W/m K), having of their ends inserted
into a furna. At a section 10.5 cm a way from furnace, the temperature of
brass rod 120 Find the distance at which the ame temperature would be
reached in the per rod ? both ends are ex osed to the same environment.
ns
2.05
۲/۱
ostrar
Chapter 33 Solutions
Bundle: Refrigeration and Air Conditioning Technology, 8th + MindTap HVAC, 4 terms (24 months) Printed Access Card
Ch. 33 - A hydronic heating system uses ______to move heat...Ch. 33 - Describe a zone in a hydronic heating system.Ch. 33 - Name four sources of heat commonly used for...Ch. 33 - Give three reasons that air is detrimental to a...Ch. 33 - Explain the difference between a wet-base and a...Ch. 33 - Where is air vented from a hydronic heating...Ch. 33 - The "point of no pressure change" is located at...Ch. 33 - The purpose of a limit control in a boiler is to...Ch. 33 - The device that relieves the pressure in a boiler...Ch. 33 - Describe the function of a low-water cutoff.
Ch. 33 - The relief valve setting for a typical...Ch. 33 - Describe how an air cushion tank functions in a...Ch. 33 - True or False: City water does not contain air.Ch. 33 - State two ways that air can get into a hydronic...Ch. 33 - The most common type of pump used for hydronic...Ch. 33 - Another term for pump pressure is feet of _______.Ch. 33 - Two types of zone control valves are the _____and...Ch. 33 - Why must expansion be considered when sizing...Ch. 33 - How is expansion in hot water pipes handled?Ch. 33 - Sketch the following systems: one pipe, two-pipe...Ch. 33 - Describe the advantage of a two-pipe...Ch. 33 - The pressure differential bypass valve is most...Ch. 33 - What is the heat output, in Btu/h, of a terminal...Ch. 33 - In a primary-secondary pumping arrangement, the...Ch. 33 - The temperature of the water at the outlet of a...Ch. 33 - A tankless water-heating system gets its heat from...Ch. 33 - How much of the sun's energy actually reaches the...Ch. 33 - The varying intensity of the sun's energy that...Ch. 33 - Drain-down systems would best be used in which...Ch. 33 - Why are solar systems intended to be used as a...
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- For the beam show below, draw A.F.D, S.F.D, B.M.D 6 kN/m 1 M B. 3 M Marrow_forward1. Two long rods of the same diameter-one made of brass (k=85w/m.k) and the other made of copper (k=375 w/m.k) have one of their ends inserted into a furnace (as shown in the following figure). Both rods are exposed to the same environment. At a distance of 105 mm from the furnace, the temperature of the brass rod is 120°C. At what distance from the furnace will the same temperature be reached in the copper rod? Furnace 105 mm T₁ Brass rod ⑪ h Too- x2- Ti Copper rodarrow_forward: +0 العنوان use only Two rods fins) having same dimensions, one made orass (k = 85 Wm K) and the mer of copper (k = 375 W/m K), having of their ends inserted into a furna. At a section 10.5 cm a way from furnace, the temperature of brass rod 120 Find the distance at which the ame temperature would be reached in the per rod ? both ends are ex osed to the same environment. ns 2.05 ۲/۱ ostrararrow_forward
- مشر on ۲/۱ Two rods (fins) having same dimensions, one made of brass(k=85 m K) and the other of copper (k = 375 W/m K), having one of their ends inserted into a furnace. At a section 10.5 cm a way from the furnace, the temperature brass rod 120°C. Find the distance at which the same temperature would be reached in the copper rod ? both ends are exposed to the same environment. 22.05 ofthearrow_forwardThe composite wall of oven with A= 1m² as in Fig.1 consists of three materials, two of with kA = 20 W/m K and kc = 50 W/m K with thickness, LA=0.3 m, L= 0.15 m and Lc 0.15 m. The inner surface temperature T1=900 K and the outer surface temperature T4 300 K, and an oven air temperature of To=1100 K, h=25 W/m². K. Determine kɛ and the temperatures T2 and T3 also draw the thermal resistance networkarrow_forwardTwo rods (fins) having same dimensions, one made of brass (k = 85 Wm K) and the other of copper (k = 375 W/m K), having one of their ends inserted into a furnace. At a section 10.5 cm a way from the furnace, the temperature of brass rod 120°C. Find the distance at which the same temperature would be reached in the copper rod ? both ends are exposed to the same environment. Ans 22.05arrow_forward
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