It is estimated that the waste per person onboard a ship amounts to 2 - 3 kg/day. Two incinerator sizes are available, one for passenger ships, cruise ships, ferries etc with capacity 150 kg/h, and one for cargo ships of any kind, with capacity 50 kg/h. It is further estimated that as an average 150 kg equals 1 m cubed waste. The operational costs have not been calculated, but the consumption of oil is negligible, because the oil burner only starts the burner and supports the combustion when the moisture is excessive. The power comsumption for the largest type is 10 kW and for the small one 7 kW. The incinerators may be running intermittantly or continuously. The latter is preferred. The incinerator has a 3-point regulation system, which above all aims at enabling the incinerator to adjust itself automatically to combustion of waste of strongly varying quality, e.g. waste from galley with calorific values down to 1200 - 1500 kcal/kg - or packing from provision room with calorific values of 4000 kcal/kg or even higher. The regulation system also ensures that no vital part is exposed to excessive temperatures and subsequent deformation, even when it is desired to burn waste from the engine room, such as oil-containing waste wool with a very high calorific value. Finally, the automatics of the oil burner will ensure starting of the burner when the temperature in the combustion chamber is too low. The combustion air fan is thus dimensioned, that it also supplies the necessary cooling air for cooling down the flue gas to 300 - 350 degrees C whilst the incinerator is running at full load (300.000 kcal/h) before the flue gas enters the cyclone system. The combustion air, which amounts to only 20% of the total quantity of air, is lead through a heat exchanger and is preheated according to the demand of the fuel which is burned. During normal combustion conditions the plant is supplied with preheated primary and secondary air and cold air for flue gas channel before the soot dispenser.

  • Corporate Authors:

    Saxlund A/S

    4800 Arendal,   Norway 
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00007448
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 22 1970 12:00AM