Calculate the make up rate of the water by doing a material balance between the water stream and the air stream. Show your steps of calculation
Calculate the make up rate of the water by doing a material balance between the water stream and the air stream. Show your steps of calculation
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
Calculate the make up rate of the water by doing a material balance between the water stream and the air stream. Show your steps of calculation.
(Attached are the datasets)

Transcribed Image Text:USEFUL INFORMATION
1. Orifice Constant:
where th
= 0.0137
5. Packing Data
x
V₂
Dry air mass flow rate (kg s¹¹)
X = Orifice differential (mm H₂O)
VB = Specific volume of steam and air mixture leaving top of column (m³ kg-¹)
va₂ = Specific volume of dry air leaving top of column (m³ kg'¹)
@ Specific humidity of air leaving top of the column (kg kg-¹)
Number of Decks
Number of Plates per Deck
Total Surface Area of Packing
Height of Packing
Packing "Density" Area
Vol
2. Energy Transferred to Water by Pump: 0.1kW
3. Water Capacity of System: 3.0 litre (excluding make-up tank)
4. Dimensions of Column: 150mm x 150mm x 600mm high.
6. Constants and Conversion Factors
Specific heat capacity of water (Cp):
Specific heat capacity of air (Cp):
1 bar = 10' N m² = 100 kN m²
1 kW = 3412 Btu h¹¹
m²
= 0.0137
m
m'¹
A
8
7
0.83
0.48
77
x
1 + w₂ )vaz
4.18 kJ kg¹¹ K¹
1.005 kJ kg¹¹ K-¹
For air, R = 0.2871 kJ kg¹ K-¹
For steam (H₂O), M = 18 kg(kg mole).¹
Universal Gas Constant (Ro) = 8.3143 kJ (kg mole)*¹ K-¹
B
8
10
1.19
0.48
110
с
8
18
2.16
0.48
200
7. Note: The heating elements are rated (subject to a manufacturing tolerance) at 240V. At other
voltages, the nominal rating should be multiplied by (local voltage)².
240
![(b) By using the psychrometric chart, fill up the table below for mass balance.
Set 1
w[kg/kg dry
air]
v[m³/kg dry
air]
Inlet (A)
Outlet (B)
Set 2
ONLY
Inlet (A)
Outlet (B)
0.013
Inlet (A)
Outlet (B)
0.017
co[kg/kg dry
air]
0.014
0.019
61
0.86
68
v¯[m³/kg dry
air]
0.87
62
74
[kg dry air/s]
m₂
(c) By using the psychrometric chart, fill up the table below for energy balance.
het 2 [kJ/kg dry air]
het i [kJ/kg dry
air]
0.0586
[kg dry air/s]
m₂
0.0582
I](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F11509ec4-d42c-4bc1-9697-6e9e86a41165%2Fd1873401-1ae7-4c45-8375-bdd11a190902%2Ffalzuj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(b) By using the psychrometric chart, fill up the table below for mass balance.
Set 1
w[kg/kg dry
air]
v[m³/kg dry
air]
Inlet (A)
Outlet (B)
Set 2
ONLY
Inlet (A)
Outlet (B)
0.013
Inlet (A)
Outlet (B)
0.017
co[kg/kg dry
air]
0.014
0.019
61
0.86
68
v¯[m³/kg dry
air]
0.87
62
74
[kg dry air/s]
m₂
(c) By using the psychrometric chart, fill up the table below for energy balance.
het 2 [kJ/kg dry air]
het i [kJ/kg dry
air]
0.0586
[kg dry air/s]
m₂
0.0582
I
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