| Issue |
MATEC Web Conf.
Volume 133, 2017
BulTrans-2017 – 9th International Scientific Conference on Aeronautics, Automotive and Railway Engineering and Technologies
|
|
|---|---|---|
| Article Number | 04003 | |
| Number of page(s) | 6 | |
| Section | Internal Combustion Engines | |
| DOI | https://doi.org/10.1051/matecconf/201713304003 | |
| Published online | 07 November 2017 | |
Experimental study on Rankine cycle evaporator efficiency intended for exhaust waste heat recovery of a diesel engine
1 Technical University – Sofia, Department of Internal Combustion Engines, Automobiles and Transport, 1000 Sofia, Bulgaria
2 Conservatoire National des Arts et Métiers, CMGPCE, 292 rue Saint Martin, 75003 Paris, France
* Corresponding author: nikolay.milkov@tu-sofia.bg
The paper pressents an experimental study of Rankine cycle evaporator efficiency. Water was chosen as the working fluid in the system. The experimental test was conducted on a test bench equipped with a burner charged by compressed fresh air. Generated exhaust gases parameters were previously determined over the diesel engine operating range (28 engine operating points were studied). For each test point the working fluid parameters (flow rate and evaporating pressure) were varied. Thus, the enthalpy flow through the heat exchanger was determined. Heat exchanger was designed as 23 helical tubes are inserted. On the basis of the results, it was found out that efficiency varies from 25 % to 51,9 %. The optimal working fluid pressure is 20 bar at most of the operating points while the optimum fluid mass flow rate varies from 2 g/s to 10 g/s.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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