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MS_thesis_Riddle_Derek_SU17.pdf (2.92 MB)

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Model Order Reduction and Control of an Organic Rankine Cycle Waste Heat Recovery System

Riddle, Derek S.
http://rave.ohiolink.edu/etdc/view?acc_num=osu150055199341535

Abstract Details

2017, Master of Science, Ohio State University, Mechanical Engineering.
As fuel efficiency and emissions requirements continue to rise, auto manufacturers are continuously striving to adopt new technologies to help reach these goals. With methods such as turbocharging, direct fuel injection, variable valve actuation, and engine stop-start now common in mass production vehicles, the next step forward could be in waste heat recovery. In most vehicles today, more than 60 percent of fuel energy is lost to waste heat in the cooling system and exhaust. The higher temperature heat energy in the exhaust can be recovered using an Organic Rankine Cycle (ORC). Past research on ORC's focused on creating highly detailed models for performance prediction or controlling extremely simple models. Neither of these options are ideal for use in operating a real system. The detailed model is too slow and the controls based on the simple model are not accurate enough to predict what the real system will do. This thesis takes a highly detailed model and uses model order reduction to create a reduced order model which retains most of the prediction accuracy of the full model but is now smaller and faster. This new reduced model has been used with feedforward and feedback controls, but it also has the potential to be used in advanced model based controls such as model predictive control (MPC).
Marcello Canova, Ph.D. (Advisor)
Giorgio Rizzoni, Ph.D. (Committee Member)
90 p.
Mechanical Engineering
ORC; waste heat recovery; model order reduction; thermal system modelling; simulation

Recommended Citations

Citations

  • Riddle, D. S. (2017). Model Order Reduction and Control of an Organic Rankine Cycle Waste Heat Recovery System [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu150055199341535

    APA Style (7th edition)

  • Riddle, Derek. Model Order Reduction and Control of an Organic Rankine Cycle Waste Heat Recovery System. 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu150055199341535.

    MLA Style (8th edition)

  • Riddle, Derek. "Model Order Reduction and Control of an Organic Rankine Cycle Waste Heat Recovery System." Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu150055199341535

    Chicago Manual of Style (17th edition)

osu150055199341535
205
© 2017, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.