AN ARRANGEMENT AND A METHOD FOR CONTROLLING A SHUTDOWN PHASE OF A WHR-SYSTEM

• Main Authors: KARDOS, Zoltan, SEDERHOLM, Thomas
• Format: Patent
• Language: English; French; German
• Published: 29.12.2021
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; COMBUSTION ENGINES; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEAT PUMP SYSTEMS; HEATING; HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINEPLANTS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MACHINES OR ENGINES IN GENERAL; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; NOT OTHERWISE PROVIDED FOR; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; STEAM ACCUMULATORS; STEAM ENGINE PLANTS; STEAM ENGINES; USE OF WASTE HEAT OF COMBUSTION ENGINES; WEAPONS

An arrangement and a method for controlling a shutdown phase of a WHR-system. The WHR system includes a main circuit (4) which includes a pump (3), an evaporator (5), an expander (7) and a condenser (10), and a compensation tank (12) which is configured to compensate for volume changes of a working fluid in the main circuit (4) during operation of the WHR system. The arrangement includes a control unit (26) configured to receive information when the shutdown phase of the WHR system is to be initiated and a flow device able to supply working fluid from the compensation tank (12) to the main circuit (4). The control unit (26) is configured to activate the flow device such that working fluid is supplied from the compensation tank (12) to the main circuit (4) when it receives information indication that the shutdown phase of the WHR system is to be initiated.