Development and performance measurement of micro-power pack using micro-gas turbine driven automotive alternators

Title
Development and performance measurement of micro-power pack using micro-gas turbine driven automotive alternators
Authors
심규호구본진김창호김태호
Keywords
Micro-power pack; Micro-gas turbine; Rotordynamic performance; Power generation; Electric vehicle
Issue Date
2013-02
Publisher
Applied energy
Citation
VOL 102, 309-319
Abstract
This paper presents the development of a micro-power pack using automotive alternators powered by a micro-gas turbine (MGT) to recharge battery packs, in particular for electric vehicles (EVs). The thermodynamic efficiency for the MGT with the power turbine is estimated from a simple Brayton cycle analysis. The rotordynamic and power generation performance of the MGT driven alternator was measured during a series of experiments under electrical no-loading and loading conditions, and with belt-pulley and flexible bellows couplings. The flexible coupling showed superior rotordynamic and power generation performance than the belt coupling due to the enhanced alignment of the alternator rotor and the reduced mechanical frictions. Furthermore, the micro-power pack showed dramatic increases in the mass and volumetric power densities by ~4 times and ~5 times, respectively, compared with those of a commercial diesel generator with similar power level. As a result, this paper assures the feasibility of the light-weight micro-power pack using a MGT and automotive alternators for EVs.
URI
http://pubs.kist.re.kr/handle/201004/46447
ISSN
03062619
Appears in Collections:
KIST Publication > Article
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