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Simulation and Thermodynamic Analysis of Two-Stage Organic Rankine Cycle for Utilisation of Waste Heat at Medium and Low Temperature Levels


Veröffentlichungsart
Begutachtete Publikation

Fakultät/Einrichtung
Natur und Technik

Institutszugehörigkeit
Julius Robert Mayer - Institut für Energietechnik
http://www.hs-bremen.de/internet/de/forschung/einrichtungen/jrmi/

Verfasser
Smolen, Slawomir, Prof. Dr.-Ing.

Autor_innen, Jahr, Titel
Prof. Dr.-Ing. Slawomir Smolen,
Simulation and Thermodynamic Analysis of Two-Stage Organic Rankine Cycle for Utilisation of Waste Heat at Medium and Low Temperature Levels
2011

Weitere Informationen
Energy Science and Technology, Volume 1, Number 1, 28 February 2011
Canadian Research & Development Center of Science and Cultures
ISSN 1923-8460 [Print]
ISSN 1923-8479 [Online]


Energy Science and Technology Volume 1
Contents:
Correlations of Flow Boiling Heat Transfer of R-134a in Minichannels:
Comparative Study
FANG Xiande; SHI Rongrong; ZHOU Zhanru (1)

Comparison of Exergy Efficiency of Oxygen- and Air-combustion H20 Turbine Power Generation Systems
Pyong Sik Pak (16)

Pioneer Solar Water Desalination System:
Experimental Testing and Numerical Simulation
Adel M. Abdel Dayem (33)

Performance of a Solar Chimney Under Egyptian Weather Conditions:
Numerical Simulation and Experimental Validation
A. A. Mostafal; M. E Sedrakl; Adel M. Abdel Dayem (49)

Simulation and Thermodynamic Analysis of a Two-Stage Organic Rankine Cycle for Utilisation of Waste Heat at Medium and Low Temperature Levels
Slawomir Smolen (64)

Experimental Investigation of Centrifugal Pump Working as Turbine for Small Hydropower Systems
Himanshu Nautiyal 1; Varun 1; Anoop Kumar; Sanjay Yadav (79)

Economic Analysis of Biodiesel Production from Waste Vegetable Oil in Mexicali, Baja California
Ana M. Vazquez; Gisela Montero; Jesus F. Sosa; Marcos Coronado; Conrado Garcia (87)

The Transfer of Sustainable Energy Technology to Developing Countries:
Understanding the Need of Bangladesh
Ershad Ali (94)
Abstract:
A two-stage ORC process is proposed as a technical option for utilising waste heat from power generation processes in combustion engines, and specifically as an efficient means of increasing the total efficiency of energy conversion in existing and projected biogas plant. Due to process-related factors, the utilisation of waste heat in the exhaust gas heat exchanger and from the cooling system of the combustion engine is performed at different temperature levels and is realised in the ORC process in two Stages by means of a micro-turbine and a screw engine. In the Course of the research work conducted, a complex calculation and simulation program was designed and created with which thermodynamic analysis as well as, to some degree, operational analysis of the respective processes were camed out.
The novelty of the concept developed here consists in adapting the fiaming conditions of a two-stage ORC process to the demands posed by utilizing the waste heat of biogas plants and to the practical application possibilities with respect to pressure ratios and temperature levels of expansion machines. The concept has been thermodynamically investigated and the results form the basis for constructing a test installation which shall enable the verification of these theoretical results.

 

 

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