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Session: Poster Session and Sponsors Exhibition
Session starts: Thursday 22 September, 14:00

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Bruno Vanslambrouck (Howest, University College of West Flanders)
Ignace Vankeirsbilck (Howest, University College of West Flanders)
Sergei Gusev (Howest, University College of West Flanders)
Michel De Paepe (Ghent University)

Abstract:
On renewable energy installations such as biogas-, landfill gas- and bio oil engines and even at all kinds of industrial plants lots of waste heat is dissipated into the atmosphere. On the other hand, there is a proven, commercially available technology to convert it (partially) into electricity. This is the Organic Rankine Cycle (ORC), used since several decades within f.i. geothermal plants. Applications of the same technology for waste heat recovery are rather premature. To transfer this technology to such applications, practical research in collaboration with industry was performed with as output : technology review (used working fluids to replace water/steam, expander types...), a market overview, view on technical and economical feasibility, simulation models, comparison between the steam cycle and ORC and selection criteria, industrial case studies (landfill- and biogas engines, steel, glass, paper, automotive, chemical, clay, water treatment....industry). As a conclusion, ORC-projects were found being very attractive on renewable energy applications with the help of green certificates. On non renewable industrial cases, economic feasibility strongly depends from integration costs and electricity prices. A test and demonstrational facility for ORC has been build. As a result of industrial collaboration, an unique 11 kWe ORC unit is composed and integrated as a scale model of the 50 and 250 kWe units that are commercially available.