Concept of a test stand for electricity generation from waste heat using wet steam
Autor
Zima, Wiesław
Cebula, Artur
Morański, Karol
Cisek, Jerzy
Opublikowane w
Archives of Thermodynamics
Numeracja
Vol. 46, No. 2
Strony
49‒56
Data wydania
2025
Wydawca
The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences
The Institute of Fluid-Flow Machinery Polish Academy of Sciences
Język
angielski
ISSN
1231-0956
eISSN
2083-6023
DOI
10.24425/ather.2025.154905
Słowa kluczowe
waste heat, wet steam, expanders, preliminary results of simulation, test stand design
Abstrakt
The paper presents a concept of an innovative test stand for converting waste heat into electricity using wet steam. Two expanders will be tested, i.e. a rotary blower and a scroll compressor, which have been adapted for reverse cycle operation. The main objective of the stand is to verify experimentally the feasibility of the effective use of an innovative wet steam cycle for waste heat recovery. To verify the design assumptions, as well as the stand configuration and parameters, preliminary simulations were carried out in Ebsilon software. The solution innovation lies in using wet steam to enhance waste heat recovery. Wet steam is generated on the test stand by injecting water into saturated steam using a specially designed nozzle system. In this way, steam dryness can be controlled precisely and proper conditions are created for the expander operation. Saturated steam is generated in the boiler installed at the laboratory of the Department of Energy of the Cracow University of Technology. The test stand will enable the system operation and an assessment of the system’s potential applications. This will help to improve the energy efficiency of waste heat utilization and reduce emissions.
