Sailors onboard HMS Prince of Wales are testing her state-of-the-art pyrolysis plants, say the Royal Navy.
The system – already fitted to the ship’s older sister HMS Queen Elizabeth say the Royal Navy – is designed to keep the tonnes of rubbish generated by the 600 sailors and 400 industry engineers and experts on board to a minimum.
“During her first two visits to Invergordon, the ship offloaded several tonnes of rubbish – ‘gash’ in Royal Navy parlance – a manual, labour-intensive process given that the 1,000 souls aboard produce upwards of nine tonnes of waste every day, stored in shiny metal drums. Enter the two pyrolysis plants – which cause material to decompose under extreme temperatures.
Most waste – including food, sewage and waste oils, including those from the galley, but not metals or glass – can be processed by the plants, which can deal with 150kg of rubbish every hour. The only flame comes from a burner which initially heats the ‘oven’ to 1,100°C – as hot as a large bonfire.
The waste then becomes the fuel; the burner switches off and the plant becomes self-sustaining using minimum fuel.”
Basically, 150kg of waste becomes 1½kg of waste.