http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Series Design of Compressors for Two-Stage Centrifugal Chiller
Jinhee Jeong,Hyeonkoo Lee 대한기계학회 2003 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.17 No.2
A preliminary series design of compressors for a two-stage centrifugal chiller is suggested.Six groups of hydrodynamically similar compressors, ranging from 233RT to 1,200RT, are introduced. Flow rates, impeller diameters, and wheel speeds for each group are determined from hydrodynamic similarity to share impellers of adjacent groups. It is expected that these compressors can have the same performance and efficiency from the smallest model to the largest one.<br/>
R134a용 터보냉동기의 원심압축기 개발 Part 1 : 원심압축기 설계
이용덕,정진희,이현구,윤필현,김길영,Lee, Yongduck,Jeong, Jinhee,Lee, Hyeonkoo,Yoon, Pil-Hyun,Kim, Kilyoung 한국유체기계학회 2000 한국유체기계학회 논문집 Vol.3 No.4
The present study has been conducted to design the high efficiency centrifugal compressor for a R134a turbo-chiller. The centrifugal compressor consists of an impeller with splitters, two vaneless diffusers, a low-solidity vaned diffuser and a volute. A cycle analysis program for a turbo-chiller was developed to obtain compressor design parameters and requirements. We have designed the high efficiency centrifugal compressor by applying the repeated design procedure including a meanline design, a 3D geometry generation and fluid dynamic loading calculations.
Performance Test of a R134a Centrifugal Water Chiller
Jinhee Jeong,Pil-Hyun Yoon,Ghil-Yeung Kim,Hyeonkoo Lee 대한설비공학회 2002 International Journal Of Air-Conditioning and Refr Vol.10 No.2
A centrifugal water chiller using alternative refrigerant R134a has been developed. The prototype was designed to have refrigerating capacity of 300 RT. Its compressor employs a single high-speed impeller, airfoil diffuser and collector. Newly developed, enhanced tubes were installed in the evaporator and the condenser to reduce the required head for the compressor. Off-design characteristics at various conditions, performance test of the compressor and analysis of the refrigeration cycle were performed. So the probability of use in part load condition was checked and the direction for revision was suggested.