고고도 장기체공 무인기용 수소 왕복엔진의 다단터보차저용 수냉식인터쿨러 설계 및 해석 (Air to Water Intercooler for Multi-stage Turbocharger Design and Analysis of the Hydrogen Reciprocating Engine for HALE UAV)

서지정보

· 발행기관 : 한국유체기계학회
· 수록지 정보 : 한국유체기계학회 논문집 / 21권 / 6호 / 21 ~ 31페이지
· 저자명 : 이양지, 이동호, 강영석, 임병준

초록

The intercooler system to reduce inlet temperature into the turbocharger of HALE　UAVs is indispensable in operating the reciprocating engine under low static pressure conditions. This system is generally divided into air-to-air and air-to-water according to the coolant material. There are pros and cons associated with each intercooler system used for HALE　UAVs. To investigate the characteristics of each intercooler system, weight estimation and performance analysis were conducted at altitudes of 50,000 ft and 60,000 ft. The air-to-water intercooler has a weight similar to the air-to-air intercooler at 50,000 ft. Conversely, the weight required for the air-to-water intercooler system is 10 kg greater than that for the air-to-air intercooler under the 60,000 ft condition because the radiator weight required for the air-to-water intercooler at 60,000 ft is greater than that at 50,000 ft due to low ambient pressure . In addition, the characteristics of air-to-water intercooler systems were studied using different antifreeze materials. It was determined that air-to-water intercooler using ethylene glycol exhibits lighter system weight than propylene glycol.

영어초록

The intercooler system to reduce inlet temperature into the turbocharger of HALE　UAVs is indispensable in operating the reciprocating engine under low static pressure conditions. This system is generally divided into air-to-air and air-to-water according to the coolant material. There are pros and cons associated with each intercooler system used for HALE　UAVs. To investigate the characteristics of each intercooler system, weight estimation and performance analysis were conducted at altitudes of 50,000 ft and 60,000 ft. The air-to-water intercooler has a weight similar to the air-to-air intercooler at 50,000 ft. Conversely, the weight required for the air-to-water intercooler system is 10 kg greater than that for the air-to-air intercooler under the 60,000 ft condition because the radiator weight required for the air-to-water intercooler at 60,000 ft is greater than that at 50,000 ft due to low ambient pressure . In addition, the characteristics of air-to-water intercooler systems were studied using different antifreeze materials. It was determined that air-to-water intercooler using ethylene glycol exhibits lighter system weight than propylene glycol.

참고자료

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