air cooler
TRANSCRIPT
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Air Finned Heat Exchanger for Mechanical Seal
- BY EXPERT ENGINEERING COLLABORATION WITH SHANDILYA ENERGY SYSTEMS PVT LTD –
INDIA.
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Introduction
Things to be discussed: Objective Standard Water Coolers Standard Air Fin Coolers What is Enhanced Air Finned Cooler Basic Concept Shandilya Enhanced Air Fin Cooler Advantage over Standard Water Cooled Heat
Exchanger Applications
Shandilya Energy
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Objective
To describe some of our activities in the area of Air Finned Cooler technology.
To demonstrate that water cooling can be replacedby air cooling
Water Air
Shandilya Energy
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Standard Water Cooler
Shandilya Energy
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Water Cooled Heat Exchanger
WATER COOLING – DISADVANTAGES SCALING Heat Transfer Poor. Scale Should Be Removed
Periodically. The Material Becomes Weak In Scale
Removing Process. Cost Of Scale Removal. Cost Of Shut Down. Cost Of Water Cost Of Recirculation Of Water
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Standard Air Fin Cooler
Shandilya Energy
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Shandilya Enhanced Air Fin Cooler
Shandilya Energy
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Shandilya Enhanced Air Fin Cooler
Shandilya Energy
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Basic Concept
Condenser
Fins
Working Fluid
Vapour
Evaporator
Shandilya Energy
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Working of Enhanced Air Finned Cooler.
It is filled with a liquid (the thermal transfer medium) appropriate to temperature of application.
The working fluid evaporates extracting heat from the process liquid
Vapour moves towards fin side of the tube wherein it dissipates heat to the ambient and condenses.
The condensed liquid comes back to the bottom portion.
The cycle repeats,
Shandilya Energy
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What is Enhanced Air Finned Cooler ?
Sealed Chamber wherein a working Substance Evaporates and Condenses.
Passive device (No Moving Parts).
Extremely high, effective thermal conductivity (as much as 1,000 times that of Cu).
Shandilya Energy
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TEMPERATURE UP TO 200degCModel: SEAFC30
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TEMPERATURE 200 -280 degCModel: SEAFC60
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TEMPERATURE ABOVE 280degCSEAFC90
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Advantage over Standard Water Cooled Hear Exchanger
Standard Heat Exchanger
Enhanced Air Finned Cooler
Cost of water is to be born all the time when the heat exchanger is on; the cost of water at the rate of 25lpm, @ Rs. 5/- per cubic meter is Rs. 65000/- (approx) per year.
No water is required, so its saves the cost of Pumps, Valves and Water for circulation for cooling.
Dissolved salts in water get deposited on the outer surface of the tube and reduces thermal conductivity, due to this out-let temperature increases and may cause seal failure also water consumption increases after scale formation.
Cooler efficiency remains almost constant.Possibility of seal failure due to temperature rise can be avoided.
In coil type Heat Exchanger if the coil is not properly vented circulation stops causing mechanical seal failure.
Self-venting, so no circulation required.
Scaling/Fouling may create the un-schedule shut down of the pump that causes the production loss. The loss of one Un-Scheduled shut down may be between Rs. 50,000/- to Rs. 1,00,000.
No un-scheduled maintenance due to cooler.
Shandilya Energy
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API Plan-21
Shandilya Energy
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API PLAN 21
Shandilya Energy
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API PLAN 21
Shandilya Energy
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API Plan-23
Shandilya Energy
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API Plan-23
Shandilya Energy
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HEAT SOAKED CARBON STEEL ST.BOX
Shandilya Energy
Heat Soaked in Carbon steel St.Box
0
20
40
60
80
100
120
140 160 180 200 220 240 260 280 300 320 340 360
Fluid Temp. (Deg. C)
He
at
So
ak
ed
(k
ca
l/min
)
20mm
40mm
60mm
80mm
100mm
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HEAT SOAKED STAINLESS STEEL ST.BOX
Shandilya Energy
Heat Soaked in Stainless Steel St.Box
0
5
10
15
20
25
30
35
140 160 180 200 220 240 260 280 300 320 340 360
Fluid Temp. (Deg. C)
He
at
So
ak
ed
(k
ca
l/min
)
20mm
40mm
60mm
80mm
100mm
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HEAT GENERATED BALANCED SEALS
Shandilya Energy
Heat generated per 1000 RPM for Balanced Seals
0
2
4
6
8
10
12
14
16
18
5 10 15 20 25 30 35 40
Pressure (kg/cm2)
Hea
t g
ener
ated
(kc
l/min
)
20mm
40mm
60mm
80mm
100mm
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HEAT GENERATED UNBALANCED SEALS
Shandilya Energy
Heat generated per 1000 RPM for Unbalanced Seals
0
2
4
6
8
10
12
14
16
18
1 2 3 4 5 6 7 8 9 10
Pressure (kg/cm2)
Hea
t g
ener
ated
(kc
l/min
)
20mm
40mm
50mm
80mm
100mm
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Models of Enhanced Air Finned Cooler.
Model SEAFC30 suitable for API PLAN 52, API PLAN 53A, API PLAN 53B and API PLAN 53C
Model SEAFC30 suitable for API PLAN 23, API PLAN 21 below 200degC.
Model SEAFC60 suitable for API PLAN 21 up to 300degC.
Model SEAFC90 suitable for API PLAN 21 above 300degC.
Shandilya Energy
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Data Sheet for Selection of Enhanced Air Fin Cooler
Shandilya Energy
Sr. No.
Parameter Unit
1. Media (Process Liquid)
2. Process Liquid Temperature °C
3. Specific Gravity of Process Liquid
4. Specific Heat of Process Liquid
5. Seal Size- Inboard mm
6. Seal Size- Outboard mm
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Data Sheet for Selection of Enhanced Air Fin Cooler
Shandilya Energy
Sr. No.
Parameter Unit
7. Vapour Pressure Kg/cm2
8. Stuffing Box Pressure Kg/cm2
9 API Plan
10. RPM
11. Barrier / Buffer Fluid
12. Specific Gravity of Barrier Liquid
13. Specific Heat of Barrier Liquid
14. Maximum Ambient Temperature °C
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Mechanical Seal manufacturing and reconditioning set up
We also do reconditioning job of Mechanical Seals & Spares and also we have in-house seal testing arrangement. We have a planning for Mechanical Seals manufacturing & repairs set up Projects around the World with local business associates.