Zastosowanie prądnic z magnesami trwałymi do budowy mikroturbogeneratorów ORC

Content Provider	Semantic Scholar
Author	Kaczmarczyk, Tomasz Z. Żywica, Grzegorz Klonowicz, Piotr
Copyright Year	2018
Abstract	The article discusses issues related to the design of the new type of electric machines intended for operation in low power cogeneration systems. For the conversion of waste heat (coming from biomass combustion) to electricity, a microturbogenerator powered by a low-boiling medium’s vapour (HFE7100) was used. The high-speed turbogenerator with a nominal power of 2.5 kWe works in the ORC system which, in addition to generating electricity, enables heat production of 20 kW. A three-phase synchronous permanent magnet motor, with a maximum rotational speed of 80,000 rpm, is an integral part of the developed expansion machine. The designed and manufactured microturbogenerator has a hermetic structure and is equipped with an oil-free bearing system. Since some elements of the electric generator must be able to operate at elevated temperatures, this article raises issues related to the use of an external cooling system. This paper reports selected results from studies of the vapour microturbogenerator that operated in the ORC installation with HFE7100 as the working fluid. Thermal and flow characteristics of the installation are presented as well. Furthermore, thermodynamic conditions that should be met during operation of the vapour expanders are discussed. It was shown that small ORC cogeneration systems with vapour microturbines could be successfully applied in the construction of electricity systems that utilise renewable energy sources and waste heat. Słowa kluczowe: mikroturbogenerator, organiczny obieg Rankina, silnik z magnesami trwałymi, HFE7100
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.komel.katowice.pl/ZRODLA/FULL/118/ref_13.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article