Scania Cv Ab

Thomas Sederholm

Zoltan Kardos

Ola Hall

A cooling system includes a first circuit (A) configured to cool a combustion engine () and a second circuit (B) configured to cool a condenser () in a WHR system. The second circuit (B) has a second radiator (), a first inlet opening (B) at which the second circuit (B) receives a coolant from a first position of the first circuit (A), a condenser inlet line () configured to direct coolant to the condenser () and an outlet opening (Bo) at which the coolant is directed back to the first circuit (A). The second circuit (B) further has a second radiator bypass line () directing coolant past the second radiator (), and a second valve device (') configured to distribute the coolant between the second radiator () and the second radiator bypass line () such that a coolant mixture is received in the condenser inlet line () which is able to cool the working medium in the condenser () to a desired condensation temperature.

Cooling system for a combustion engine and a WHR system

The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.

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Hägersten, Sweden

Thomas Sederholm