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Title: Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles
Authors: Walraven, DaniĆ«l
Laenen, Ben
D'haeseleer, William # ×
Issue Date: Jul-2014
Publisher: Pergamon
Series Title: Energy Conversion and Management vol:83 issue:C pages:177-187
Abstract: In this paper, a first step towards a system optimization of organic Rankine cycles (ORCs) is taken by optimizing the cycle parameters together with the configuration of shell-and-tube heat exchangers. In this way every heat exchanger has the optimum allocation of heat-exchanger surface, pressure drop and pinch-point-temperature difference for the given boundary conditions. Different tube configurations are investigated in this paper. It is concluded that the 30°-tube configurations should be used for the single-phase heat exchangers and the 60°-tube configuration for the two-phase heat exchangers. The performance of subcritical cycles can be strongly improved by adding a second pressure level. Recuperated cycles are only useful when the temperature of the heat source after the ORC should be relatively high.
ISSN: 0196-8904
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Applied Mechanics and Energy Conversion Section
× corresponding author
# (joint) last author

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