International Journal of Modern Research in Engineering & Management (IJMREM) ||Volume|| 1||Issue|| 1 ||Pages|| 01-05 ||January- 2018|| ISSN: 2581-4540
Modelling and Simulation of Shell and Tube Heat Exchanger Using different Types of Fluids 1, 1,
Vipul N. Gandhi, 2, Dr. S. N. Nemade, 3, Dr.P.V. Thorat
Student M.Tech COETA ,Akola;
2,
Prof. COETA, Akola
3,
HOD, COETA, Akola
-----------------------------------------------------ABSTRACT----------------------------------------------------The shell and tube type of heat exchanger module is to be used for simulation study of various fluid systems on rate of heat transfer. The ionic fluids are used to see the difference in outlet temperature of fluid as compared to reference fluid. The cooling fluid is made by adding various amounts of solutes to water and the effect is observed on rate. Also suggestions are made on the nature of heat transfer, rate of heat transfer and improved effectiveness in the rate of heat transfer as compared to the normal process. The conclusions are made about the best simulated results obtain from Chemcad software on rate of heat transfer.
Index Terms: Effectiveness, Heat Exchanger, Ionic fluid. -------------------------------------------------------------------------------------------------------------------------- ------------Date of Submission: Date, 05 January 2018 Date of Accepted: 20 January 2018 --------------------------------------------------------------------------------------------------------------------------- ------------
I.
INTRODUCTION
Shell and tube heat exchanger are one of the most widely used type of heat exchanger in the process industries (65%of the market) and are commonly found in oil refineries, nuclear power plants and other large scale chemical processes [5]. Additionally, they can be found in many engines and are used to cool hydraulic fluid and oil. In this application, two separated fluids at different temperatures flow through the heat exchangers: one through the tubes (tube side) and other though the shell around the tubes (shell side). Several design parameters and operating conditions influence the optimal performance of shell and tube heat exchangers.
II.
PROCEDURE
The “fig.� describes the flow of fluid and equipment arrangement for the research. The heat exchanger and equipments are assembled systematically. The fluid solutions are made with various solutes. The solutes such as NaCl, KOH, KMnO4, etc are used for the experiment. The temperatures of inlet and outlet are measured to determine the effect on rate of heat transfer.
Figure: schematic diagrams of apparatus
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Modelling and Simulation of Shell and Tube…
III.
DESIGN OF EQUIPMENT AND MODEL EQUATION
A shell and tube heat exchanger of dimension length-39 cm, shell diameter 9 cm, Tube diameter 0.62 cm is used. Stainless steel is used as the material of construction.
Q= UA LMTD = m C ΔT
Fig: Flow pattern of fluid in shell
IV.
RESULT DISCUSSION
The graphs are plotted between LMTD and concentration of fluids shows that the LMTD increases with the increase of concentration for constant flow rate. 40 concentratio n vs LMTD at 70 °C
30 20
concentratio n vs LMTD at 80 °C
10 0 0
0.2
0.4
0.6
Figure: Graph for KMnO4
Figure: Graph for KOH
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Modelling and Simulation of Shell and Tube…
Figure: Graph for NaCl V.
EXPERIMENTAL DATA
Hot wat er inlet tem p. Th1, °C
Hot water outlet temp. Th2,° C
For KMnO4 Ser ial No.
Conc . (nor malit y)
Col d solu tion inlet tem p. Tc1, °C
Hot solu tion outl et tem p. Tc2, °C
Flo w rate of hot wat er inlet LP H
Flo w rate of cold solu tion inlet
LMT D
(LP H)
1
0.1
70
48
20
35
10
10
24.46
1
0.1
80
53
21
37
20
20
32.95
2
0.3
70
54
20
40
30
30
28.28
2
0.3
80
60
21
42
40
40
34.53
3
0.5
70
59
20
43
50
50
29.83
3
0.5
80
64
21
42
40
40
36.75
FOR NACL
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Seri al No.
Con c. (No rma lity)
1 1 2 2 3 3
0.1 0.1 0.3 0.3 0.5 0.5
Hot inlet wat er tem p. Th1, °C 60 70 60 70 60 70
Hot outlet water temp. Th1, °C
Cold inlet soluti on temp. Tc1, °C
Cold outlet soluti on temp. Tc2, °C
Flow rate of hot wate r LPH
Flow rate of soluti on LPH
LMT D °C
37 45 41 50 46 58
20 21 20 21 20 21
25 33 27 36 30 40
20 30 20 30 20 30
40 40 40 40 40 40
23.25 26.29 24.76 27.97 27.55 30.34
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Modelling and Simulation of Shell and Tube… FOR KOH S er ia l N o. 1 1 2 2 3 3
Conc. Of solutio n (N)
Th1, °C
Th 2,° C
Tc 1,° C
Tc 2,° C
H LPH
C LP H
LMTD ϴm ,°C
0.1 0.1 0.3 0.3 0.5 0.5
70 80 70 80 70 80
43 52 47 58 50 63
20 21 20 22 20 21
28 30 30 33 32 35
40 40 40 40 40 40
40 40 40 40 40 40
29.07 37.50 30.58 39.21 31.32 41.59
FOR REFERENCE FLUID (WATER) S R N
HOT
HOT
COL
COLD
FLO
FLO
IN
OUT
D IN
OUT
(TH1° C)
(TH2° C)
(TC1° C)
(TC2° C)
W RATE (HOT
)
W RATE (COL D)
(LPH )
(LP H)
50
50
O
LMT D (°C)
.
1
60
51
25
VI.
30
27.40 6
CONCLUSION
The module is simulated for various fluids system to obtain the best fluid giving best rate of heat transfer. Among the fluids chosen KOH shows satisfactory results. Since the LMTD is high so the rate so it is the best fluid out of selected one.
VII. 1. 2. 3. 4. 5.
ABBREVATIONS
LMTD: Logarithmic temperature difference LPH: Liquid Flow rate C: Cold Fluid H:Hot fluid 1,2:Inlet and outlet
REFERENCES [1]. [2]. [3]. [4]. [5]. [6]. [7]. [8]
International Journal Of Science And Research(Ijsr)Shell And Tube Heat Exchanger Performance Analysis By Durgesh Bhatt And Priyanka M. Javhar. Journal of Heat and Mass Transfer Research, Investigation of shell and tube heat exchanger by using design of experiment by S. BalamuruganansD.P. Samsoloman. IJETAE Review paper on design and analysis for shell and tube evaporator for dairy application by Lokhande Hemantkumar and Vishawanath Kumar. Journal of Heat and Mass Transfer Research, Investigation of shell and tube heat exchanger by using design of experiment by S. Balamuruganans D.P. Samsoloman. H.S. Lee, thermal design, John Wiley and Sons, 2010. J. França, C. A. Nieto de Castro, M. L. M. Lopes, and V. M. B. Nunes ,“Influence of thermophysical properties of ionic liquids in chemical process design,” J. Chem. Eng. Data, vol. 54, pp. 2569-2575, 2009. IJETAE S.Swaraj Reddy, Taniya Dey, Haribabu K, Harshit Krishna Kumar, Garima Vishal, 2014 Jia-Zhen Yang, Peng Tian, Ling-Ling He, Wei-Guo Xu, “Studies on room temperature ionic liquid”, 110036, pr china, fluid phase equilibria 204 (2003) 295–302
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AKNOWLEDGEMENT – FULLFILMENT OF MY M.TECH DEGREE.
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MY SELF VIPUL N GANDHI, THIS IS MY PROJECT WORK FOR THE PARTIAL
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