Modellingand Optimisation on Scroll Expander for Waste Heat Recovery Organic Rankine Cycle

Zhen Liu; Guohong Tian; Mingshan Wei; Panpan Song; Yiji Lu; Gregory Ashby; Anthony Pual Roskilly

doi:10.1016/j.egypro.2015.07.379

Modellingand Optimisation on Scroll Expander for Waste Heat Recovery Organic Rankine Cycle

Zhen Liu, Guohong Tian^*, Mingshan Wei, Panpan Song, Yiji Lu, Gregory Ashby, Anthony Pual Roskilly

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

8 Citations (Scopus)

Abstract

Scroll expander has demonstrated high efficiency at low power range. In this paper, a generic model of a scroll expander hasbeen developed. It can calculate the ideal expander parameters to give the optimalefficiency and prevent under-orover-expansionat any given operating conditions or fluids. The dynamic model was validated bypredictingthe ideal volumetric expansion ratio with ideal expansion ratio of 4.03 at 0.7 MPa pressure,and showed agreement with experimental data. The results suggested thatthe rate of scroll increase K in the geometric model has little effect on volumetric expansion ratio or ideal scroll length of the expander, but whenexpansion ratio is kept constant, lower K value results inlower leakage losses.

Original language	English
Pages (from-to)	1603-1608
Number of pages	6
Journal	Energy Procedia
Volume	75
DOIs	https://doi.org/10.1016/j.egypro.2015.07.379
Publication status	Published - 2015
Event	7th International Conference on Applied Energy, ICAE 2015 - Abu Dhabi, United Arab Emirates Duration: 28 Mar 2015 → 31 Mar 2015

Keywords

geometry optimum;dynamic model;Organic Rankine Cycle
scroll expander

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10.1016/j.egypro.2015.07.379

Cite this

Liu, Z., Tian, G., Wei, M., Song, P., Lu, Y., Ashby, G., & Roskilly, A. P. (2015). Modellingand Optimisation on Scroll Expander for Waste Heat Recovery Organic Rankine Cycle. Energy Procedia, 75, 1603-1608. https://doi.org/10.1016/j.egypro.2015.07.379

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title = "Modellingand Optimisation on Scroll Expander for Waste Heat Recovery Organic Rankine Cycle",

abstract = "Scroll expander has demonstrated high efficiency at low power range. In this paper, a generic model of a scroll expander hasbeen developed. It can calculate the ideal expander parameters to give the optimalefficiency and prevent under-orover-expansionat any given operating conditions or fluids. The dynamic model was validated bypredictingthe ideal volumetric expansion ratio with ideal expansion ratio of 4.03 at 0.7 MPa pressure,and showed agreement with experimental data. The results suggested thatthe rate of scroll increase K in the geometric model has little effect on volumetric expansion ratio or ideal scroll length of the expander, but whenexpansion ratio is kept constant, lower K value results inlower leakage losses.",

keywords = "geometry optimum;dynamic model;Organic Rankine Cycle, scroll expander",

author = "Zhen Liu and Guohong Tian and Mingshan Wei and Panpan Song and Yiji Lu and Gregory Ashby and Roskilly, {Anthony Pual}",

note = "Publisher Copyright: {\textcopyright} 2015 Published by Elsevier Ltd.; 7th International Conference on Applied Energy, ICAE 2015 ; Conference date: 28-03-2015 Through 31-03-2015",

year = "2015",

doi = "10.1016/j.egypro.2015.07.379",

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T1 - Modellingand Optimisation on Scroll Expander for Waste Heat Recovery Organic Rankine Cycle

AU - Liu, Zhen

AU - Tian, Guohong

AU - Wei, Mingshan

AU - Song, Panpan

AU - Lu, Yiji

AU - Ashby, Gregory

AU - Roskilly, Anthony Pual

PY - 2015

Y1 - 2015

N2 - Scroll expander has demonstrated high efficiency at low power range. In this paper, a generic model of a scroll expander hasbeen developed. It can calculate the ideal expander parameters to give the optimalefficiency and prevent under-orover-expansionat any given operating conditions or fluids. The dynamic model was validated bypredictingthe ideal volumetric expansion ratio with ideal expansion ratio of 4.03 at 0.7 MPa pressure,and showed agreement with experimental data. The results suggested thatthe rate of scroll increase K in the geometric model has little effect on volumetric expansion ratio or ideal scroll length of the expander, but whenexpansion ratio is kept constant, lower K value results inlower leakage losses.

AB - Scroll expander has demonstrated high efficiency at low power range. In this paper, a generic model of a scroll expander hasbeen developed. It can calculate the ideal expander parameters to give the optimalefficiency and prevent under-orover-expansionat any given operating conditions or fluids. The dynamic model was validated bypredictingthe ideal volumetric expansion ratio with ideal expansion ratio of 4.03 at 0.7 MPa pressure,and showed agreement with experimental data. The results suggested thatthe rate of scroll increase K in the geometric model has little effect on volumetric expansion ratio or ideal scroll length of the expander, but whenexpansion ratio is kept constant, lower K value results inlower leakage losses.

KW - geometry optimum;dynamic model;Organic Rankine Cycle

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DO - 10.1016/j.egypro.2015.07.379

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VL - 75

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T2 - 7th International Conference on Applied Energy, ICAE 2015

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ER -

Modellingand Optimisation on Scroll Expander for Waste Heat Recovery Organic Rankine Cycle

Abstract

Keywords

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