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Losses of exergy in a marine oil-fired boiler

Matuszak Z.

Archives of Thermodynamics

2008

Vol. 29, no. 4

97-108

A marine oil-fired boiler (one the types installed on merchant vessels) is discussed in terms of kinds of exergy losses in particular component of the boiler and in the process of producing the energy carrier - process steam. The analysis is based on the functional structure of the boiler corresponding to its operation in a vessel. The analysis is preceded by the definitions of basic concepts connected with the terms and quantities referring to exergy loss and boiler efficiency. The final part of the paper indicates difficulties with the estimation of the amount of exergy losses and oil-fired boiler efficiency in actual operating conditions.