We supply Camfil air inlet filters for gas turbines at power plants and on FPSOs across Ghana. The right filter comes down to how much dust, salt and moisture your site deals with, and we specify it using the ISO 29461-1 classes, T5 to T13.
Why does gas turbine inlet filtration matter?
A gas turbine draws in huge volumes of air, and whatever passes the filters reaches the compressor. Particles foul the blades and reduce output and efficiency. Salt can drive corrosion. Filters that clog too quickly raise pressure drop, which also costs power. Good filtration is a balance between protection and resistance.
How do conditions in Ghana affect filter choice?
| Condition | Where you see it | What it means for filtration |
|---|---|---|
| Heavy seasonal dust | Harmattan, especially inland and at dry sites | High dust-holding capacity. Pulse-cleaned cartridges can suit very dusty sites |
| Salt and humidity | Coastal plants such as Aboadze and Tema, and offshore | Moisture handling and salt removal, usually with static multi-stage systems |
| Heavy rain | Coastal and southern sites in the rainy seasons | Water management, so wet filters do not spike pressure drop or release salts |
What are the ISO 29461-1 gas turbine filter classes?
ISO 29461-1 is the international standard for turbomachinery air inlet filters. These are the classes as published by Camfil:
| Class | Tested to | Efficiency requirement |
|---|---|---|
| T5 | ISO 16890 | ePM10 ≥ 50% |
| T6 | ISO 16890 | ePM2.5,min ≥ 50% |
| T7 | ISO 16890 | ePM1,min ≥ 50% |
| T8 | ISO 16890 | ePM1,min ≥ 70% |
| T9 | ISO 16890 | ePM1,min ≥ 85% |
| T10 | ISO 29463 | ≥ 85% at MPPS |
| T11 | ISO 29463 | ≥ 95% at MPPS |
| T12 | ISO 29463 | ≥ 99.5% at MPPS |
| T13 | ISO 29463 | ≥ 99.95% at MPPS |
Which Camfil gas turbine filters are available?
Camfil’s turbomachinery range includes CamGT compact filters, designed for water handling, salt removal and low operating pressure drop, CamClose pleated panel pre-filters, Cam-Flo bag filters and TurboPulse pulse-cleaned cartridges. Tell us your filter house model and current filters, and we will confirm the right option and availability.