Details
| Original language | English |
|---|---|
| Title of host publication | Aircraft Engine; Fans and Blowers; Marine; Honors and Awards |
| Publisher | American Society of Mechanical Engineers(ASME) |
| ISBN (electronic) | 9780791850770 |
| Publication status | Published - 2017 |
| Event | ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017 - Charlotte, United States Duration: 26 Jun 2017 → 30 Jun 2017 |
Publication series
| Name | Proceedings of the ASME Turbo Expo |
|---|---|
| Volume | 1 |
Abstract
The present research focuses on the efficiency improvement at part-load of a centrifugal fan for a 30 kW fuel cell combined heat and power (CHP) unit. For this purpose, the fan stage is equipped with a partially vaned diffuser with a variable cross-sectional area using a moving backplate. The design and the performance of the partially vaned diffuser with a variable cross-sectional area are described in the first part of this paper. The performance results are compared to measurements of the same centrifugal fan with a vaneless diffuser carried out for the previous investigation. For the second part, the influence of the variable cross-sectional area on the diffuser flow field is investigated using optical PIV (Particle Image Velocimetry) measurements and CFD (Computational Fluid Dynamics) simulations. The combination of a variable cross-section, partially vaned diffuser was able to achieve a 10 percent increase in pressure ratio, a 5 percentage points increase in part-load efficiency while maintaining the whole operating range of the vaneless, constant cross section reference design.
ASJC Scopus subject areas
- Engineering(all)
- General Engineering
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Aircraft Engine; Fans and Blowers; Marine; Honors and Awards. American Society of Mechanical Engineers(ASME), 2017. (Proceedings of the ASME Turbo Expo; Vol. 1).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Partially vaned diffuser with variable cross-section for centrifugal fans
AU - Fischer, Tore
AU - Rudersdorf, Manuel
AU - Burgmann, Sebastian
AU - Seume, Joerg R.
N1 - Funding information: This paper presents results of the IGF research project 18100N of the IUTA and the FVV, which is funded by the AiF within the program for the founding of industrial collaborate research (IGF) of the BMWi based on a resolution of the German Bundestag.
PY - 2017
Y1 - 2017
N2 - The present research focuses on the efficiency improvement at part-load of a centrifugal fan for a 30 kW fuel cell combined heat and power (CHP) unit. For this purpose, the fan stage is equipped with a partially vaned diffuser with a variable cross-sectional area using a moving backplate. The design and the performance of the partially vaned diffuser with a variable cross-sectional area are described in the first part of this paper. The performance results are compared to measurements of the same centrifugal fan with a vaneless diffuser carried out for the previous investigation. For the second part, the influence of the variable cross-sectional area on the diffuser flow field is investigated using optical PIV (Particle Image Velocimetry) measurements and CFD (Computational Fluid Dynamics) simulations. The combination of a variable cross-section, partially vaned diffuser was able to achieve a 10 percent increase in pressure ratio, a 5 percentage points increase in part-load efficiency while maintaining the whole operating range of the vaneless, constant cross section reference design.
AB - The present research focuses on the efficiency improvement at part-load of a centrifugal fan for a 30 kW fuel cell combined heat and power (CHP) unit. For this purpose, the fan stage is equipped with a partially vaned diffuser with a variable cross-sectional area using a moving backplate. The design and the performance of the partially vaned diffuser with a variable cross-sectional area are described in the first part of this paper. The performance results are compared to measurements of the same centrifugal fan with a vaneless diffuser carried out for the previous investigation. For the second part, the influence of the variable cross-sectional area on the diffuser flow field is investigated using optical PIV (Particle Image Velocimetry) measurements and CFD (Computational Fluid Dynamics) simulations. The combination of a variable cross-section, partially vaned diffuser was able to achieve a 10 percent increase in pressure ratio, a 5 percentage points increase in part-load efficiency while maintaining the whole operating range of the vaneless, constant cross section reference design.
UR - http://www.scopus.com/inward/record.url?scp=85029010059&partnerID=8YFLogxK
U2 - 10.1115/gt2017-63965
DO - 10.1115/gt2017-63965
M3 - Conference contribution
AN - SCOPUS:85029010059
T3 - Proceedings of the ASME Turbo Expo
BT - Aircraft Engine; Fans and Blowers; Marine; Honors and Awards
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition, GT 2017
Y2 - 26 June 2017 through 30 June 2017
ER -