Title:
EXHAUST HEAT RECOVERY SYSTEM OF MARINE ENGINE, AND CONTROL METHOD OF EXHAUST HEAT RECOVERY SYSTEM OF MARINE ENGINE
Document Type and Number:
Japanese Patent JP2019094802
Kind Code:
A
Abstract:
To provide an exhaust heat recovery system for a marine engine, and its control method capable of suppressing fuel costs and COemission by suppressing fluctuation of a pressure of an evaporated gas supplied to an expander, and minimizing a heat charging amount from the external, in the exhaust heat recovery system of the marine engine converting heat energy of an exhaust gas of the marine engine including a supercharger into mechanical energy by the expander.SOLUTION: A flow rate of a working medium S supplied to an expander 25 is adjusted and controlled to cope with fluctuation of a demand amount of mechanical energy converted by the expander 25, and a flow rate of an exhaust gas Gb bypassing an exhaust turbine 12t of a marine engine 10 is adjusted and controlled on the basis of a valve opening β of a first steam flow rate control valve 27 for adjusting the flow rate of the working medium S supplied to the expander 25 or the demand amount to mechanical energy, to adjust a temperature Teg of an exhaust gas G supplied to an evaporator 23.SELECTED DRAWING: Figure 1
Inventors:
TSUJI YASUYUKI
HAYAFUNE KOICHI
IZAWA TAKESHI
HAYAFUNE KOICHI
IZAWA TAKESHI
Application Number:
JP2017222922A
Publication Date:
June 20, 2019
Filing Date:
November 20, 2017
Export Citation:
Assignee:
MITSUI E & S ZOSEN CO LTD
International Classes:
F01K23/10; B63H21/32; B63H21/38; F01D25/00; F01N5/02; F01N13/08; F02G5/02
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation