Method and apparatus for indicating a risk of corrosion or scuffing of components of a combustion chamber of a turbocharged engine arrangement, in particular for vessels, and turbocharged engine arrangements for vessels

摘要

In order to provide a method for indicating a risk of corrosion or scuffing of components of a combustion chamber (10) of a turbo charged engine arrangement (100), in particular for vessels, wherein the turbo charged engine arrangement comprises a turbocharger (15) and a charge gas cooler (19a), wherein a first gas stream (13) of an ambient gas enters into the turbocharger (15), wherein a second gas stream (18) of charge gas flows from the turbocharger (15) to the charge gas cooler (19a), wherein the second gas stream (18) of charge gas enters into the charge gas cooler (19a), wherein a third gas stream (21) of charge gas flows from the charge gas cooler (19a) to the combustion chamber (10), and wherein the third gas stream (21) of charge gas enters into the combustion chamber (10), the invention proposes that the method comprises the steps of a) measuring parameters, wherein the measured parameters comprise at least one gas temperature, at least one gas pressure, a first water content (Õ 1 ) of the charge gas of the third gas stream (21) and a liner temperature (T L ) of a liner (25) of the combustion chamber (10), and b) determining, in particular calculating, a second water content (Õ 2 ) of a gas in the combustion chamber (10) based on the measured parameters, and c1) indicating the determined second water content (Õ 2 ) as an indicator of the risk of corrosion or scuffing of components of the combustion chamber (10), and/or c2) comparing the determined second water content (Õ 2 ) with at least one pre-determined value and indicating the risk of corrosion of components or scuffing of the combustion chamber (10) when the determined second water content (Õ 2 ) is higher and/or equal and/or lower than the at least one pre-determined value, and/or c3) adjusting an operating parameter of the turbo charged charged engine.