http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
건물 에너지 관리 시스템을 위한 에너지 시뮬레이션과 검증
이준우(Junu Lee),김경재(Kyeung-Jae Kim),윤상철(Sang-Chul Youn),장세동(Se-Dong Chang) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.11
Building Energy Management Systems(BEMS) are computer-based systems that help to manage, monitor, and control energy consuming facilities while providing comfort environment to occupants. To increase energy efficiency and maintain thermal comfort, simulation model based controls are developed and adopted rather than applying experiential know-how based controls. The simulation model consists of thermal load estimation and thermal dynamics calculation of Heating, Ventilation and Air Conditioning(HVAC) systems. The model is verified with measured data from BEMS installed in an existing office building. Error rates of simulation are 2.34% and 4.03% in terms of temperature and energy consumption of HVAC systems. This model was applied to finding optimal solution for energy saving control methods in the BEMS, and 14.4% of energy saving rate is measured in the existing building. This paper reports that the developed model represents thermal dynamics of building and is accurate enough to control HVAC systems of building.
이준우(Junu Lee),김경재(Kyeung-Jae Kim),윤상철(Sang-Chul Youn),권오성(Oh-Sung Kwon) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.11
To assess the building energy performance, an objective and quantitative tool is necessary. Many existing energy simulation programs provide a number of ways to calculate the energy requirements of a building and the energy consumption for facilities. There is a trade-off relationship between simulating the energy performance of a building easily and simply and deriving accurate and precise results to analyze detailed information of where the diagnosis is required. In other words, it takes a considerable amount of time and effort to obtain accurate results, or in opposite cases, it is difficult to obtain desired precision results. In order to achieve the desired accuracy and precision, simulation programs that do not meet the exact purpose are used or the heterogeneous simulation methods are used. This study deals with the development of a tool based on the standard procedures and methods to simulate the building energy performance and to diagnose HVAC-R systems and energy usage of individual facilities in order to derive appropriate levels of results for the building energy performance. And the study reports the accuracy and usability of the developed tool through the simulation result for an existing building.
김화영(Hwayoung Kim),김형민(Hyungmin Kim),송민수(Minsu Song),안지훈(Jihun An),김강현(Ganghyun Kim),김선민(Sunmin Kim),김찬현(Chanhyun Kim),박성우(Seoungwoo Park),이준우(Junu Lee),이준기(Joonki Rhee),임재혁(Jaehyuk Im),정승수(Seungsu Jeo 한국추진공학회 2022 한국추진공학회 학술대회논문집 Vol.2022 No.5
본 논문은 경기대학교 KURBC 팀이 설계한 모듈형 신기전K22에 대한 설계과정과 그 근거를 서술하였다. 로켓의 임무는 ‘로켓 발사 후 낙하 시 낙하산 사출 및 안전한 회수’이다. 목표 고도는 400m, 연료는 질산칼륨-소르비톨(KNSB)이다. 낙하산 사출 방법은 동체와 낙하산이 안전하게 보호되는 용수철 사출을 선택했다. 본 팀은 이번 대회에서 CFRP 카본으로 로켓의 동체를 만들고, 내부를 모듈로 구성함으로써 차별점을 두었다. 또한 RF 장거리 통신 기술을 이용하여 발사 전후의 데이터를 체계적으로 기록하여 후속 연구에 참고할 예정이다. This paper describes the design process and basis for the modular Shinkijeon-K22 designed by the KURBC team of Kyonggi University. The rockets mission is devising a method for parachute injection and safe recovery when falling after launching the rocket. The target altitude is 400 m and the fuel is potassium nitrate-solvitol (KNSB). The spring injection method was used for the parachute injection, in which the fuselage and parachute are safely protected. We made a difference by making the rockets fuselage with CFRP carbon and configuring the interior as a module. In addition, RF long-distance communication technology will be used to systematically record data before and after launch and refer it to subsequent studies.