Details
| Original language | English |
|---|---|
| Title of host publication | 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2015 |
| Publication status | Published - 2015 |
| Event | 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2015 - Madrid, Spain Duration: 23 Mar 2015 → 27 Mar 2015 |
Abstract
One current approach considered by automobile manufacturers to recover waste heat uses Organic Rankine Cycles (ORC) to increase the efficiency of combustion engines. However the efficiency of these ORCs is strongly dependent on the efficiency of a suitable expansion machine. For a suitable choice, three different turbines are compared, which are designed for a predefined operating point of such an automobile ORC. These turbines are partially admitted impulse turbines with a trapezoidal Laval nozzle, a circular Laval nozzle and a trapezoidal Laval nozzle with a small expansion ratio in the divergent nozzle part. The scope of this comparison is the performance of the turbines at full and partial admission. To this end, the full admission turbines are numerically investigated with CFD and the losses due to partial admission are considered by an empirical approach. Finally, the losses due to partial admission are shown separately and their main sensitivities are identified.
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2015. 2015.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
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TY - GEN
T1 - Supersonic impulse turbine for automotive waste heat recovery
T2 - 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2015
AU - Kunte, Harald S.
AU - Seume, Joerg R.
AU - Pautov, Dmitrii V.
AU - Cherkasova, Marina G.
AU - Zabelin, Nicholay A.
AU - Olennikov, Sergey Y.
AU - Rassokhin, Victor A.
PY - 2015
Y1 - 2015
N2 - One current approach considered by automobile manufacturers to recover waste heat uses Organic Rankine Cycles (ORC) to increase the efficiency of combustion engines. However the efficiency of these ORCs is strongly dependent on the efficiency of a suitable expansion machine. For a suitable choice, three different turbines are compared, which are designed for a predefined operating point of such an automobile ORC. These turbines are partially admitted impulse turbines with a trapezoidal Laval nozzle, a circular Laval nozzle and a trapezoidal Laval nozzle with a small expansion ratio in the divergent nozzle part. The scope of this comparison is the performance of the turbines at full and partial admission. To this end, the full admission turbines are numerically investigated with CFD and the losses due to partial admission are considered by an empirical approach. Finally, the losses due to partial admission are shown separately and their main sensitivities are identified.
AB - One current approach considered by automobile manufacturers to recover waste heat uses Organic Rankine Cycles (ORC) to increase the efficiency of combustion engines. However the efficiency of these ORCs is strongly dependent on the efficiency of a suitable expansion machine. For a suitable choice, three different turbines are compared, which are designed for a predefined operating point of such an automobile ORC. These turbines are partially admitted impulse turbines with a trapezoidal Laval nozzle, a circular Laval nozzle and a trapezoidal Laval nozzle with a small expansion ratio in the divergent nozzle part. The scope of this comparison is the performance of the turbines at full and partial admission. To this end, the full admission turbines are numerically investigated with CFD and the losses due to partial admission are considered by an empirical approach. Finally, the losses due to partial admission are shown separately and their main sensitivities are identified.
UR - http://www.scopus.com/inward/record.url?scp=85043441302&partnerID=8YFLogxK
M3 - Conference contribution
BT - 11th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics, ETC 2015
Y2 - 23 March 2015 through 27 March 2015
ER -