• Home
  • Depcik Article 2013 2

C. Sprouse, C. Depcik, “Review of organic Rankine cycles for internal combustion engine exhaust waste heat recovery,” Applied Thermal Engineering, vol. 51, pp. 711 – 722, 2013.

 

Escalating fuel prices and future carbon dioxide emission limits are creating a renewed interest in methods to increase the thermal efficiency of engines beyond the limit of in-cylinder techniques. One promising mechanism that accomplishes both objectives is the conversion of engine waste heat to a more useful form of energy, either mechanical or electrical. This paper reviews the history of internal combustion engine exhaust waste heat recovery focusing on Organic Rankine Cycles since this thermodynamic cycle works well with the medium-grade energy of the exhaust. Selection of the cycle expander and working fluid are the primary focus of the review, since they are regarded as having the largest impact on system performance. Results demonstrate a potential fuel economy improvement around 10% with modern refrigerants and advancements in expander technology.

 


KU Today
High school seniors can apply to the SELF Program, a four-year enrichment and leadership experience
Engineering students build concrete canoes, Formula race cars, unmanned planes, and rockets for competitions nationwide
More first and second place awards in student AIAA aircraft design contests than any other school in the world
One of 34 U.S. public institutions in the prestigious Association of American Universities
44 nationally ranked graduate programs.
—U.S. News & World Report
Top 50 nationwide for size of library collection.
—ALA
23rd nationwide for service to veterans —"Best for Vets," Military Times