| Autor: |
Yuriy P. Kondratenko, Serhiy Serbin, Oleksiy Korobko, Volodymyr Korobko |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Green IT Engineering: Social, Business and Industrial Applications ISBN: 9783030002527 |
| DOI: |
10.1007/978-3-030-00253-4_20 |
| Popis: |
The problem of preservation of the environment is closely connected with issues of rational use of energy and material resources. In this regard, the development of new energy-saving technologies is a top priority. Analyzing the state of modern energy saving technologies, one can conclude that there is a lack of effective solutions for utilizing waste low-temperature and cryogenic heat resources (450–132) K. Thermoacoustic heat machines (TAHM), can effectively use such energy sources. TAHM are characterized by high reliability, relative low cost and environmental safety. The introduction of thermoacoustic technologies is hampered by the low power of TAHM and the difficulty of directly obtaining mechanical work from acoustic waves. There is the possibility of using bi-directional turbines as a converter of acoustic energy in mechanical work. Such approach will enable the creation of thermoacoustic turbine generators of high power. To determine the optimal design parameters of bidirectional thermoacoustic turbines it is necessary to conduct a complex of experimental and theoretical studies. Article presents the results of experimental research of the working processes of the “bi-directional turbine—electric generator—TAHM” complex. For the registration and analysis of experimental information, a special computer based control system was created. System includes MCU-based pulse-phase control subsystem for thermoacoustic engine heater, data acquisition subsystem and SCADA-based PC software for data storage and analysis. Designed with green IT approach paradigm control system is described in detail. Initial processing of measurement results was carried out in real time with the help of special software. The results of physical experiments allowed determining the boundary conditions for computational fluid dynamics (CFD) simulation of work processes in the bi-directional turbine. The peculiarities of the medium hydrodynamics in the TAHM resonator during the work of the bi-directional turbine at various load conditions were studied. Based on the results of CFD modeling the structural optimization of turbine is proposed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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