Part-Load Optimization of an Organic Rankine Cycle

Honors College Thesis

Public Deposited

Citeable URL: https://ir.library.oregonstate.edu/concern/honors_college_theses/pg15bp408

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Attribute Name	Values
Creator	Ramsey, Owen
Abstract	Waste-heat-recovery Organic Rankine Cycle (ORC) systems use excess heat from industrial processes to produce electrical power. In many cases, the temperatures and mass flow rates of these excess-heat streams vary significantly over time, causing the ORC to often operate far from its design point. In this study, a control strategy is investigated for an ORC using refrigerant R1233zd(E), with the objective of maximizing net work output. First, heat exchangers are sized to meet targeted pinch-point temperature differences at nominal heat- source conditions. Then, the part-load operation of the system is optimized under several heat-source conditions. Finally, the performance of the proposed operational strategy is compared to other operational strategies. The results show that off-design ORC performance can be greatly improved by employing an optimized-evaporating-temperature control strategy. Key Words: thermodynamics, heat transfer, power cycles, optimization, waste heat recovery
Resource Type	Honors College Thesis
Date Issued	2022-08-23
Degree Level	Bachelor's
Degree Name	Honors Bachelor of Science (H.B.S.)
Degree Field	Mechanical Engineering
Degree Grantor	Oregon State University
Commencement Year	2023
Advisor	Fronk, Brian M.
Committee Member	Niemeyer, Kyle E. AuYeung, Nick
Non-Academic Affiliation	Oregon State University. Honors College
Rights Statement	In Copyright
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]

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