Year 2018, Volume 21, Issue 1, Pages 62 - 68 2018-03-01

Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery

D. Micheli [1] , M. Reini [2] , R. Taccani [3]

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ORCs are widely recognized as one of the most suitable solution for energy recovery, if the temperature of the heat source is of about 200°C, or lower. In case of heat sources of about 100 kW or smaller, the more common solutions prescribe a simple cycle and a single stage expander, in order to reduce complexity and costs. Scroll expanders, derived from scroll compressors, are expected to be available at very low unit costs. The drawbacks of this kind of solutions, originally designed for automotive, or HVAC applications, are mainly two: the low fixed volumetric expansion ratio and the small volumetric flow rate, that are not always well-suited for the requirements of power production. In this paper, different ORCs with multiple expansions are evaluated with the aim of achieving a better exploitation of small scale-low temperature waste heat sources. The comparison takes in consideration different possible solutions for the multiple expansions, with internally recuperated and not-recuperated cycles, whilst the data describing the actual behaviour of compressors derived scroll expanders have been previously obtained by a test rig, set up at the University of Trieste, using R245fa as working fluid.


ORC; scroll expander; heat recovery; low temperature applications
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Primary Language en
Subjects Engineering
Journal Section Regular Original Research Article
Authors

Author: D. Micheli
Country: Italy


Author: M. Reini
Country: Italy


Author: R. Taccani
Country: Italy


Dates

Publication Date: March 1, 2018

Bibtex @research article { ijot400079, journal = {International Journal of Thermodynamics}, issn = {1301-9724}, eissn = {2146-1511}, address = {Uluslararası Uygulamalı Termodinamik Derneği İktisadi İşletmesi}, year = {2018}, volume = {21}, pages = {62 - 68}, doi = {10.5541/ijot.5000207080}, title = {Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery}, key = {cite}, author = {Micheli, D. and Reini, M. and Taccani, R.} }
APA Micheli, D , Reini, M , Taccani, R . (2018). Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery. International Journal of Thermodynamics, 21 (1), 62-68. DOI: 10.5541/ijot.5000207080
MLA Micheli, D , Reini, M , Taccani, R . "Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery". International Journal of Thermodynamics 21 (2018): 62-68 <http://dergipark.org.tr/ijot/issue/35770/400079>
Chicago Micheli, D , Reini, M , Taccani, R . "Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery". International Journal of Thermodynamics 21 (2018): 62-68
RIS TY - JOUR T1 - Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery AU - D. Micheli , M. Reini , R. Taccani Y1 - 2018 PY - 2018 N1 - doi: 10.5541/ijot.5000207080 DO - 10.5541/ijot.5000207080 T2 - International Journal of Thermodynamics JF - Journal JO - JOR SP - 62 EP - 68 VL - 21 IS - 1 SN - 1301-9724-2146-1511 M3 - doi: 10.5541/ijot.5000207080 UR - https://doi.org/10.5541/ijot.5000207080 Y2 - 2018 ER -
EndNote %0 International Journal of Thermodynamics Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery %A D. Micheli , M. Reini , R. Taccani %T Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery %D 2018 %J International Journal of Thermodynamics %P 1301-9724-2146-1511 %V 21 %N 1 %R doi: 10.5541/ijot.5000207080 %U 10.5541/ijot.5000207080
ISNAD Micheli, D. , Reini, M. , Taccani, R. . "Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery". International Journal of Thermodynamics 21 / 1 (March 2018): 62-68. https://doi.org/10.5541/ijot.5000207080
AMA Micheli D , Reini M , Taccani R . Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery. International Journal of Thermodynamics. 2018; 21(1): 62-68.
Vancouver Micheli D , Reini M , Taccani R . Multiple Expansion ORC for Small Scale – Low Temperature Heat Recovery. International Journal of Thermodynamics. 2018; 21(1): 68-62.