http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
입체냉방 공조시스템이 실내 열 쾌적성에 미치는 영향에 대한 실험적 연구
이대웅(Daewoong Lee),정홍희(Honghee Jeong),안준철(Junchul An),백창현(Changhyun Baek),김재형(Jaehyeong Kim),정춘식(Chunshik Jeong),왕윤호(Yoonho Wang) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
The aim of this paper is to investigate three-dimensional air-conditioning system for impact on the cabin thermal comfort. Current air-conditioning system is dependent on the cool-down performance which is HVAC, located inside of front instrument pane supplies cold air from the front cabin to the rear cabin. Therefore, front passengers and rear passengers can feel thermal comfort quite differently because of solar radiation through the windows, blower air path and individual environmental differences etc. Three-dimensional air-conditioning system is one of the solutions to improve the thermal comfort of the passengers. For the simulation of the three-dimensional air-conditioning system, an auxiliary blower was adapted for the rear passengers, cool-down performance was conducted and thermal comfort evaluation was implemented with various positions of the blower. According to the experimental results, 4 positions of the auxiliary blower have similar cool-down performance, the position of the auxiliary blower is optimized with current HVAC and thermal comfort rating is improved than thermal comfort rating of current HVAC system. In other words, three-dimensional air-conditioning system is expected to reduce energy consumption because three-dimensional air-conditioning system can make it possible to reach the set temperature with less air-conditioning system operation.
공조장치 연계형 시트공조 시스템의 냉난방 성능에 대한 실험적 연구
이대웅(Daewoong Lee),박태용(Taeyong Park),정석제(Sukjae Chung),정춘식(Chunshik Jeong),왕윤호(Yoonho Wang) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
The aim of this paper is to investigate the application of low cost CCS(Climate Control Seat) using a HVAC(Heating, Ventilation and Air-Conditioning) system. CCSs is being vigorously purposed because requests for passenger`s thermal comfort are increasing. However current CCS, which is thermoelectric device have been applied for both heating and cooling, used limited luxurious car only. HVAC type CCSs are well suited for effective delivery of conditioned air due to thermal comfort and close proximity to the occupants. Experimental results show that the HVAC type CCCs have superior cooling performance and slightly uncompetitive heating performance than that of TED type CCS. In the case of HVAC type CCSs, air flow volume was increased approximately 3.7~7.3㎥/h than TED type CCS. and surface temperature of seat was reduced about 5℃ and cool-down was similar than Base. Additionally, occupants subjective evaluation, HVAC type CCSs was reduced 8 minutes to reach the comfort rating 5 at cooling test and high comporting ration after 8 minutes at seat heating test than of TED type CCSs.
공회전 제한장치 차량용 축냉 열교환기의 성능에 대한 연구
이대웅(Daewoong Lee),권대복(Daebok Keon),정석제(Sukjae Chung),정춘식(Chunshik Jeong),왕윤호(Yoonho Wang) 한국자동차공학회 2014 한국자동차공학회 학술대회 및 전시회 Vol.2014 No.11
ISG system for the fuel economy and emission is very useful technology in the recent automobile industrial. However, when engine stop, air-conditioning system don"t work due to compressor stop arise from passenger"s thermally dis-comfort. This study represented the cold storage system applied cold storage heat-exchanger integrated with evaporator. The experiments were conducted for optimum cold storage heat-exchanger design with different refrigerant flow pass, fin height and density, phase change materials in the heatexchanger. Also the cold storage release performance are examined effect on the ambient temperature and supplying air flow volume rate. The visualization of phase change material freezing and melting process inside cold storage heat-exchanger are conducted. The experimental results, air discharge temperature of cold storage system applied optimum cold storage heat-exchanger is 116 second delay to reach the 18°C set on the cabin comfort temperature range than current air-conditioning system. Finally, cold storage heat-exchanger integrated with evaporator is effective solution for ISG vehicles, to keep the thermal comfort in the cabin when short period of engine stop.