Shell and tube heat exchangers provide a large surface area, ensuring efficient heat transfer and compact design. They are extensively used in industries for cooling, heating, condensation, and evaporation. GOEL is a leader in the glass shell and tube heat exchangers field in India, and its products are highly regarded in the market.
![shell and tube heat exchanger](../../../images/product/shell-and-tube-heat-exchanger.png)
Salient Features of Shell & Tube Heat Exchanger :
- Universal corrosion resistance an excellent alternative to expensive MOCs like graphite, hastelloy, copper titanium, tantalum and other exotic metals.
- Excellent heat transfer as fouling does not occur on smooth glass surfaces.
- Flexibility of installation vertical/horizontal.
- Easy replacement of tubes for repair and cleaning.
- Available in wide range of HTAs.
- Ease of installation due to light weight.
- Economical
- Suitable for applications where large HTAs are required in limited space.
Advantages of Shell and Tube Heat Exchanger Over Conventional Coil Type Heat Exchangers :
![shell & tube heat exchanger](../../../images/product/shell-and-tube-type-heat-exchanger.png)
- The overall heat transfer coefficient in a shell and tube heat exchanger is approximately three times higher than that in a coil type heat exchanger.
- The pressure drop in a shell and tube heat exchanger is minimal, whereas in the coil side of a coil type heat exchanger, it can be 2-3 kg/cm².
- For applications requiring larger heat transfer areas, the shell and tube heat exchanger is the only viable option.
Construction Features of Shell & Tube Heat Exchanger :
Each glass tube is individually sealed into the PTFE tube sheet using specialized PTFE sockets and packing. This unique ferrule-type sealing arrangement allows for easy replacement and cleaning of the tubes. Baffles on the shell side enhance heat transfer by increasing turbulence. For more construction details, please refer to the diagram.
- The Made from SCHOTT DURAN.
- Joint less tubes offer better pressure rating
TYPE:
Three basic versions * are available :
Material Of Construction of Shell & Tube Heat Exchanger |
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Model | Shell | Tube | Header | Duty |
RGG | Glass | Glass | Glass | For heat transfer between two aggressive media. |
RGM | Glass | Glass | Steel/FRP | For heat transfer between aggressive media in shell & non-aggressive media in tubes. |
RMG | Steel/FRP | Glass | Glass | For heat transfer between aggressive media in tubes & non-aggressive media in shell |
* GOEL provides assistance to clients for selecting the right model for specific duty. |
* GOEL provides assistance to clients for selecting the right model for specific duty.
Dimensional Specifications of Shell and Tube Heat Exchanger :
Cat.Ref. |
6/3 |
6/4 |
6/5 |
6/6 |
9/6 |
9/8 |
9/10 |
9/12 |
12/12 |
12/16 |
12/21 |
12/25 |
Area (m2) |
3 |
4 |
5 |
6 |
6 |
8 |
10 |
12 |
12 |
16 |
21 |
25 |
DN |
150 |
225 |
300 |
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DN1 |
80 |
100 |
150 |
|||||||||
DN2 |
50 |
80 |
80 |
|||||||||
DN3 |
25 |
40 |
40 |
|||||||||
DN4 |
50 |
50 |
50 |
|||||||||
H1 |
175 |
250 |
300 |
|||||||||
H2 |
150 |
200 |
250 |
|||||||||
L |
2500 |
3100 |
3700 |
4300 |
2620 |
3220 |
3820 |
4520 |
2550 |
3150 |
3950 |
4550 |
L1 |
1900 |
2500 |
3100 |
3700 |
1900 |
2500 |
3100 |
3800 |
1800 |
2400 |
3200 |
3800 |
L2 |
150 |
150 |
150 |
150 |
225 |
225 |
225 |
225 |
225 |
225 |
225 |
225 |
L3 |
1600 |
2200 |
2800 |
3400 |
1450 |
2050 |
2650 |
3350 |
1350 |
1950 |
2750 |
3350 |
L4 |
250 |
250 |
250 |
250 |
300 |
300 |
300 |
300 |
300 |
300 |
300 |
300 |
L5 |
125 |
125 |
125 |
125 |
175 |
175 |
175 |
175 |
175 |
175 |
175 |
175 |
L6 |
1980 |
2580 |
3180 |
3780 |
2000 |
2600 |
3200 |
3900 |
1930 |
2530 |
3330 |
3930 |
T |
50 |
60 |
75 |
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No. of Tubes |
37 |
73 |
151 |
|||||||||
No. of Baffles |
11 |
15 |
19 |
23 |
7 |
9 |
13 |
17 |
5 |
7 |
9 |
11 |
Shell & Tube Heat Exchanger Range of Applications :
- Permissible temperature range for both shell and tube sides: -40°C to 150°C.
- Maximum permissible temperature difference between shell and tube sides: 120°C.
- All sizes and models are suitable for full vacuum on both sides. Maximum limiting pressures are tabulated below:
Maximum Permissible Pressure Range, Kg/cm2(g) |
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Model |
Side |
150DN |
225DN |
300DN |
RGG |
Shell |
2.0 |
1.0 |
1.0 |
RGM |
Shell |
2.0 |
1.0 |
1.0 |
RMG |
Shell |
3.5 |
3.5 |
3.5 |
The mentioned application ranges are acceptable limiting values. For each specific case, GOEL recommends the permissible operating data based on the relationships between pressure and temperature, as well as size and model.
Shell and Tube Heat Exchanger Performance & Design Data :
The shell and tube heat exchanger offers a significant advantage with its high heat transfer performance. The relationship between heat transfer and flow velocity is clearly illustrated in the diagram.
Upon receiving the operating data from the client, we select the most suitable shell and tube heat exchanger. This precise design, coupled with the highest quality assurance, ensures both economic efficiency and operational reliability for the user.
For approximate sizing, typical heat transfer coefficients are provided below:
U-Values |
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Media |
Use |
kcal/m2hrk |
W/m2k300 |
|
DN | ||||
Steam water |
condensation |
350-550 |
410-640 |
|
Water – water |
cooling |
250-350 |
290-410 |
|
Water – air |
cooling |
30-60 |
35-70 |