• Organic Rankine cycle modellin...

Treffer: Organic Rankine cycle modelling and the ORCmKit library: analysis of R1234ze(Z) as drop-in replacement of R245fa for low-grade waste heat recovery

Title:
Organic Rankine cycle modelling and the ORCmKit library: analysis of R1234ze(Z) as drop-in replacement of R245fa for low-grade waste heat recovery
Authors:
Ziviani, Davide, Dickes, Rémi, Quoilin, Sylvain, Lemort, Vincent, de Paepe, Michel, van den Broek, Martjin
Source:
Proceedings of ECOS 2016 (2016-06-20); ECOS 2016 - 29th international conference on Efficiency, Cost, Optimisation, Simulation and Environmental Impact of Energy Systems, Portoroz, Slovenia [SI], du 19 juin 2016 au 23 juiin 2016
Publication Year:
2016
Subject Terms:
ORC, R245fa, R1234ze(Z), drop-in, ORCmKit, Engineering, computing & technology, Energy, Ingénierie, informatique & technologie, Energie
Document Type:
Konferenz conference paper<br />http://purl.org/coar/resource_type/c_5794<br />conferenceObject<br />peer reviewed
Language:
English
Access URL:
https://orbi.uliege.be/handle/2268/200515
Rights:
open access
http://purl.org/coar/access_right/c_abf2
info:eu-repo/semantics/openAccess
Accession Number:
edsorb.200515
Database:
ORBi

Weitere Informationen

Due to the wide interest in organic Rankine cycles (ORCs) as a sustainable technology and the importance of numerical analyses and optimization procedures while considering such systems, we created a dedicated open-source library named “ORC modelling Kit” (ORCmKit). The comprehensive library includes single com-ponents and overall models for subcritical, transcritical and supercritical ORCs. Three main programming environments are currently supported: Matlab, Python and EES (Engineering Equation Solver). A detailed steady-state cycle model of a small-scale regenerative ORC with a single-screw expander is used to evalu-ate the performance influence of R1234ze(Z) as a drop-in replacement of R245fa currently used in the instal-lation. The ORC system is used to recover low-grade waste heat with a temperature range between 90°C and 120°C. A thermal oil heater is used to simulate the heat source. A parametric study is carried out to in-vestigate the performance of the system throughout the range of interest in order to optimize the ORC with R1234ze(Z).