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HiTRAN
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PERFORMANCE
UPGRADES
NEW DESIGNS
INSTALLATION
LITERATURE
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PROJECT REPORTS
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Reduces size, fan power, weight and cost of aircooled oil cooler
| Plant |
Gas Compression |
| Service |
Gas Turbine
Driven Compressor |
| Exchanger |
Air cooled Lube
Oil Cooler |
| Application |
To cool: 15.5
litres/sec of turbine lube oil from 85°C to 71°C in a design
air temperature of 37.5°C. Heat load = 373kw. |
| Design
Comparison |
Plain
Bore Finned Tube |
HiTRAN®
System |
| Number of
tubes/row |
46 |
30 |
| Number of
rows of tubes |
6 |
3 |
| Tube
length (mm) |
7925 |
3350 |
| Number of
tube passes |
6 |
1 |
| Flow
length (m) |
47.55 |
3.35 |
| Reynolds
number |
1344 |
687 |
| Heat
transfer rate (W/m2K) Finned tube |
3.29 |
20.95 |
| Air rate
(m/s) |
2.29 |
3.2 |
| Air
temperature rise (°C) |
6.67 |
15.33 |
| Number
and size of fans (mm) |
2
x 2250 |
2
x 1250 |
| Appropriate
total fan power (kW) |
11.8 |
5.0 |
| Plot
dimensions (m) |
2.74
x 8.54 |
2.05
x 3.96 |
| Plot area
(m2) |
23.40 |
8.12 |
| Finned
surface (m2) |
3058.3 |
563.2 |
| Oil
pressure drop (kPa) |
71 |
71 |
| Weight
(kg) |
8500 |
2200 |
| Benefits |
- Requires only 1/3 of the plot area.
- Uses less than ½ of the fan power.
- Achieves the same duty at the same pressure drop.
- Allows flexibility to design within noise level
limits.
- Lowest cost option
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Best
cost option engineering
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