CASE C05 · NO ·
Returkraft: inspeksi ketebalan ultrasonik tanpa perancah pada ketel uap pembangkit listrik tenaga sampah
Pembangkit listrik tenaga sampah Returkraft di Norwegia memakai drone yang dilengkapi UT untuk mengukur ketebalan tabung ketel. Produsen melaporkan pekerjaan UT turun dari paling lama 300 jam menjadi sekitar 8 jam, dan lama penghentian operasi berkurang sekitar 48 jam tanpa perancah. Mengatur sudut probe pada tabung lengkung yang sempit sulit dilakukan, dan pembersihan awal tetap diperlukan.
| Pemilik | Returkraft (waste-to-energy plant) |
| Penyedia | — |
| Lokasi | Kristiansand, Norway |
| Pesawat udara | Flyability Elios 3 with UT payload |
| Sensor | ultrasonic thickness (UT) probe, 4K video, LiDAR |
Sebelum
10–15 pekerja perancah menghabiskan sekitar 1.700 jam mendirikan perancah di dalam ketel, lalu inspektur NDT menghabiskan sekitar 300 jam untuk pembacaan UT.
Dengan drone
Tim pembangkit sendiri menerbangkan drone dengan probe UT untuk membaca ketebalan dinding tabung, tanpa masuk ke dalam ketel.
Hasil
| Metrik | Nilai | Dasar |
|---|---|---|
| UT inspection time | about 8 hours (incl. battery changes) vs up to 300 hours | Dilaporkan |
| measurements | over 150 UT readings in 2.5 hours of flight | Dilaporkan |
| outage length | about 48 hours shorter; 7 days of scaffolding avoided | Dilaporkan |
| cost | €450,000 stated as saved | Dilaporkan |
Catatan dan batasan
- Manufacturer case study (Flyability); the €450,000 figure is presented both as the saving and as the cost of the traditional method, so it is internally inconsistent.
- Curved narrow tubes (44.5 mm and 57 mm) required careful probe angling; the boiler cleaning system must run first and fouling may need removing.
- An earlier FPV drone could not fly the space and gave only visual data.
- Year not stated in the article; city (Kristiansand) is from the plant's public identity, not the article.
Sumber
- Saving 450,000 Euros on Boiler Inspections with the Elios 3 DroneFlyability Teks lengkap sudah dibaca
Sumber diperiksa: 2026-10-22