Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Kyoung-Ku Ha"'
Autor:
Gun Woong Park, Hyun Sup Yang, Jong Sung Lee, Chang Gook Moon, Kyoung-Ku Ha, Sung Ho Hwang, Tae Ho Kim, Chang Ha Lee
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 29:368-378
This paper evaluates the NVH characteristics of an air compressor for fuel cell electric vehicles(FCEVs) by conducting experimental as well as on-road tests. For the experiment, five eddy-current-type displacement sensors measured the vibration ampli
Publikováno v:
SAE International Journal of Alternative Powertrains. 5:167-174
Publikováno v:
International Journal of Fluid Machinery and Systems. 7:7-15
In the present study, a computational analysis of the flow in a centrifugal blower is carried out to predict a performance and to explain noise characteristics of the blower. Unsteady, 3D Navier-Stokes equations were solved with k- e turbulence model
Autor:
Kyung-Seok Cho, Woo-Youl Jung, Kyoung-Ku Ha, Chi-Yong Park, Shin-Hyoung Kang, Tae-Bin Jeong, Kwang-Min Won, Hyoung-Jin Kim
Publikováno v:
Journal of Mechanical Science and Technology. 27:3287-3297
A variety of centrifugal compressors are used in various fields of industry such as aircraft, home appliances, and vehicles. Comfort and quietness are important in these uses. As a result, noise has become an important consideration in compressor des
Autor:
Chang Ha Lee, Jong Sung Lee, Jeonghee Park, Chimyung Kim, Kyoung-Ku Ha, Tae Ho Kim, Moon Sung Park, Young Min Kim
Publikováno v:
Volume 7B: Structures and Dynamics.
Gas foil bearings (GFBs) have clear advantages over oil-lubricated and rolling element bearings, by virtue of low power loss, oil-free operation in compact units, and rotordynamic stability at high speeds. However, because of the inherent low gas vis
Autor:
Chimyung Kim, Kyoung-Ku Ha, Young Min Kim, Chang Ha Lee, Moon Sung Park, Tae Ho Kim, Jong Sung Lee
Publikováno v:
Volume 7B: Structures and Dynamics.
The widespread application of gas foil bearings (GFBs) to high-performance microturbomachinery requires accurate predictions for their physical models based on experimental test data. This paper presents the experimental measurements and model predic
Autor:
Young Min Kim, Moon Sung Park, Tae Ho Kim, Kyoung Ku Ha, Chang Ha Lee, Jong Sung Lee, Sae Hoon Kim
Publikováno v:
Volume 7B: Structures and Dynamics.
This paper presents rotordynamic performance measurements of multilayer gas foil journal bearings (GFJBs) supporting the rotor of oil-free microturbomachinery, and a comparison with the model predictions. A series of rotor coast-down tests from 60 kr
Publikováno v:
Volume 2D: Turbomachinery.
The subject of this study is a centrifugal compressor for fuel-cell vehicles which produces compressed air and sends it to the cathode channels of a fuel-cell stack. It uses up a lot of electricity and it is the only component in the processing syste
Publikováno v:
Volume 1: Symposia, Parts A and B.
A centrifugal compressor for fuel-cell vehicles, which makes compressed air and sends it to the fuel-cell stack, is investigated in this paper. It is the only part of revolution in the system, and it consumes most of the system power. Therefore, it i
Autor:
Shin Hyoung Kang, Kyoung Ku Ha
Publikováno v:
ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D.
A variety of centrifugal compressors are used in various fields of industry these days. The design requirements are more complicated, and it is difficult to determine the optimal design point of a centrifugal compressor. The aim of this study was to