%0 Journal Article %1 walraven2014optimum %A Walraven, Daniël %A Laenen, Ben %A D’haeseleer, William %D 2014 %J Energy Conversion and Management %K 2014 Organic-Rankine-Cycle heat-exchanger optimization %N 0 %P 177 - 187 %R 10.1016/j.enconman.2014.03.066 %T Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles %U http://dx.doi.org/10.1016/j.enconman.2014.03.066 %V 83 %X 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.

@article{walraven2014optimum, 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.}, added-at = {2014-07-19T11:30:01.000+0200}, author = {Walraven, Daniël and Laenen, Ben and D’haeseleer, William}, biburl = {https://www.bibsonomy.org/bibtex/23542ab72266443e07cfd5ae0a4d12fb6/thorade}, description = {Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles}, doi = {10.1016/j.enconman.2014.03.066}, interhash = {2139a3a71b8e0d5c0590da228b6a41cb}, intrahash = {3542ab72266443e07cfd5ae0a4d12fb6}, issn = {0196-8904}, journal = {Energy Conversion and Management }, keywords = {2014 Organic-Rankine-Cycle heat-exchanger optimization}, number = 0, pages = {177 - 187}, timestamp = {2014-07-19T11:30:01.000+0200}, title = {Optimum configuration of shell-and-tube heat exchangers for the use in low-temperature organic Rankine cycles }, url = {http://dx.doi.org/10.1016/j.enconman.2014.03.066}, volume = 83, year = 2014 }