Improving the part-load performance of turbines in rankine cycle based automotive waste heat recovery systems

Michiel Oom, Emanuel Feru, Bram de Jager, Henk Ouwerkerk, Rick de Lange

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

1 Citaat (Scopus)
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Samenvatting

This paper presents two control strategies that improve the part-load performance of turbine-generators in Rankine cycle based automotive waste heat recovery systems. The first strategy concerns regulation of the turbine rotational speed by applying a varying current to the generator. A static feedforward controller is derived and experimentally demonstrated. Simulations indicate this controller to be over 99% optimal in terms of electric energy production. A comparison with tracking of the optimal turbine speed shows the implemented controller to be favorable. The second strategy concerns the admission of steam into the turbine by periodically opening and closing an on/off valve. By using this technique, the pressure ratio over the turbine is increased in a cost effective manner. On an experiment with a low heat input, the electric energy production increased by 18% due to the pulsating flow.

Originele taal-2Engels
Titel2018 Annual American Control Conference, ACC 2018
UitgeverijInstitute of Electrical and Electronics Engineers
Pagina's4906-4911
Aantal pagina's6
ISBN van geprinte versie9781538654286
DOI's
StatusGepubliceerd - 9 aug. 2018
Evenement2018 American Control Conference (ACC 2018) - Hilton Milwaukee City Center Hotel, Milwaukee, Wisconsin, Verenigde Staten van Amerika
Duur: 27 jun. 201829 jun. 2018
http://acc2018.a2c2.org/

Congres

Congres2018 American Control Conference (ACC 2018)
Verkorte titelACC 2018
Land/RegioVerenigde Staten van Amerika
StadMilwaukee, Wisconsin
Periode27/06/1829/06/18
Internet adres

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