CONTROL METHOD AND CONTROL DEVICE FOR EXHAUST HEAT RECOVERY SYSTEM FOR MARINE VESSEL

Disclosed are a control method and a control device for an exhaust heat recovery system which are capable of preventing an onboard supply power outage in response to a sharp change in the load of the main drive machine- For an exhaust heat recovery system for which a portion of the exhaust gas gener...

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Bibliographische Detailangaben
Hauptverfasser:	KAGIMOTO, YOSHIMI, OHTA, YUJI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS AUXILIARIES ON VESSELS BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES GAS-TURBINE PLANTS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MARINE PROPULSION OR STEERING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING USE OF WASTE HEAT OF COMBUSTION ENGINES WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed are a control method and a control device for an exhaust heat recovery system which are capable of preventing an onboard supply power outage in response to a sharp change in the load of the main drive machine- For an exhaust heat recovery system for which a portion of the exhaust gas generated by the ship's main drive machine is supplied to a gas turbine and the amount of heat of the exhaust gas exhausted by the gas turbine is conducted to an exhaust gas economizer, this control method and control device: obtain an estimated or calculated current reserve amount of heat (Q), which is based on the heat energy detection signal of the exhaust gas economizer; obtain, based on the operation state of an auxiliary electrical generator and on the onboard power demand, a reference amount of heat (Q min ), which is required to maintain the requisite power until the auxiliary electrical generator starts up; compare the current reserve amount of heat (Q) and the reference amount of heat (Q min ); and, based on the result of the comparison, select the operating state of the auxiliary electrical generator from either stop, idle or driving operation.