SHORT COMMUNICATION
Analyzing Selection of Low-Temperature Medium
for Cogeneration Micro Power Plant
Daniel Stępniak1, Marian Piwowarski2
1Institute of Fluid-Flow Machinery - Polish Academy of Sciences, Poland
2Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, Poland
2Faculty of Ocean Engineering and Ship Technology, Gdansk University of Technology, Poland
Pol. J. Environ. Stud. 2014;23(4):1417-1421
KEYWORDS
ABSTRACT
This article analyses the ORC system working with dry and wet low-boiling media, which are most frequently
used in installations of this type. Two types of cycles were examined: the cycle with heat regeneration
for dry media (fc72, hfe7100, R227ea, R245fa, R423a, and R600a) and the cycle without heat regeneration for
wet media (R11, R12, R134a, R718, and 507a). The calculations were performed for the assumed required
thermal power Q=50 kW and two variants of low-boiling medium temperature equal to t=50 and 95ºC at condenser
inlet. The effects of medium type and parameters on basic design parameters of the axial micro turbine
also were analyzed.
| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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