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실험을 통한 건물통합형 태양광ㆍ열(BIPVT) 시스템의 난방성능 평가
정선옥(Jeong, Seon-Ok),김진희(Kim, Jin-Hee),김지성(Kim, Ji-Seong),박세현(Park, Se-Hyeon),김준태(Kim, Jun-Tae) 한국태양에너지학회 2012 한국태양에너지학회 논문집 Vol.32 No.6
The heat from PV modules shouldbe removed for better electrical performance, and can be converted into useful thermal energy. A photovoltaic-thermal(PVT) module is a combination of PV module with a solar thermal collector which forms one device that produce thermal energy as well as electricity. In many studies various water type PVT collectors have been proposed in effort to increase their electrical and thermal efficiency. The aim of this study is to evaluate the heating performance of heating system combined with PVT collectors that on integrated building roof. For this study, the BIPVT system of 1.5kWp was installed at the experimental house, and it was incorporated with its heating system. From the experimental results, the solar fraction of the heating system with BIPVT was15%. It was also found that was analyzed that the heating energy for the house can be reduced by 47%, as the heat gained from BIPVT system pre-heated the water used for heating system.
건물통합형 태양광·열(BIPVT) 난방시스템의 실험 성능 분석 연구
정선옥(Jeong, Seon-Ok),김진희(Kim, Jin-Hee),김준태(Kim, Jun-Tae) 한국태양에너지학회 2012 한국태양에너지학회 학술대회논문집 Vol.2012 No.11
The heat from PV modules should be removed for better electrical performance, and can be converted into useful thermal energy. A photovoltaic-thermal(PVT) module is a combination of PV module with a solar thermal collector which forms one device that converts solar radiation into electricity and heat simultaneously. In many studies various water type PVT collectors have been proposed in effort to increase their electrical and thermal efficiency. The aim of this study is to analyze the experimental performance of heating system with building-integrated PVT(BIPVT). For this study, the roof integrated BIPVT module of 1.5kWp was installed at the experimental house, and it was connected with conventional heating system.
정선옥 ( Jeong Seon Og ) 한국스페인어문학회 2003 스페인어문학 Vol.0 No.29
En este estudio nos proponemos clarificar la poe´tica juvenil de Juan Ramo´n Jime´nez, explicitada en aforismos y cri´ticas, o sea en sus prosas de la primera e´poca(1899-1915). Sus reflexiones sobre la naturaleza de la poesi´a son abundantes. Las fuentes de lo poe´tico o que´ es la poesi´a se nos ha desdoblado en una pluralidad de respuestas segu´n el momento vital enfocado: la tristeza, la mujer ideal, y el infinito son un triple objeto que muestra el profundo romanticismo del poeta mogueren~o. La creacio´n de un mundo propio y bello que sustituya a la decepcionante realidad, esta respuesta juanramoniana coincide tanto con la este´tica roma´ntica como con la vanguardista. La valoracio´n positiva de la mentira y del suen~o nos orienta de nuevo hacia estos movimientos; la del distanciamiento, hacia el Clasicismo. Por u´ltimo, el dilema inspircio´n/trabajo nos muestra a un Juan Ramo´n ma´s inclinado del lado del trabajo gustoso que de la inspiracio´n, por lo tanto en posicio´n de Clasicismo. Sin embargo, en este punto las declaraciones juanramonians desfiguran un poco la fuerza y la intensidad del polo de inspiracio´n, manifestado en Juan Ramo´n Jime´nez bajo el nombre de instante. Lo esencial de la poe´tica juanramoniana ya aparece explicitado en esos an~os juveniles. Casi desde sus inicios, la poe´tica juanramoniana se encuentra ya forjada, de modo que, en los an~os de su mayor explicitacio´n -los de 1917-1950-, asistiremos al desarrollo de ese sistema este´tico-literario, pero no a un cambio radical de planteamientos.
사각튜브부착형 흡열판을 적용한 Unglazed PVT 복합모듈의 열적 전기적 성능분석
정선옥(Jeong, Seon-Ok),천진아(Chun, Jin-Aha),김진희(Kim, Jin-Hee),김준태(Kim, Jun-Tae),조인수(Cho, In-Soo),남승백(Nam, Seung-Baeg) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11
The heat from PV modules should be removed for better electrical performance, and can be converted into useful thermal energy. A photovoltaic-thermal(PVT)module is a combination of PV module with a solar thermal collector which forms one device that converts solar radiation into electricity and heat simultaneously. The performance of the PV/Thermal combined collector module is directly influenced by solar radiation that also has an effect on PV module temperature. It is also has believe that the energy performance of PV/T collector is related to absorber design as well as PV module temperature. The existing study has been paid to the PV/Thermal combined collector module with circle tube absorbers. The aim ofthis study is to analyze the experimentalperformance ofthe PV/Thermalcombined collector rectangular tube absorbers according to solar radiation. The experimental result show that the average thermal and electrical efficiencies o fthePVT collector were 43% and14.81% respectively. Solar radiation is one of the most influential factors to determine the energy performance of PVT collector, but from a certain level of solar radiation the PVT collector receives on, its efficiencies began to decrease.
연구논문 : 유통 절임배추의 중금속, 잔류농약 및 식중독 안전성 조사
정선옥 ( Sun Ok Jung ),정지헌 ( Ji Hun Jung ),김성단 ( Sung Dan Kim ),이현경 ( Hyun Yung Lee ),박성규 ( Sung Kyu Park ),이병훈 ( Byung Hun Lee ),이정숙 ( Jeong Sook Lee ),김수진 ( Soo Jin Kim ),김동규 ( Dong Gyu Kim ),유인실 ( In 한국식생활문화학회 2015 韓國食生活文化學會誌 Vol.30 No.6
In recent years, consumers have become more interested in convenient lifestyles, leading to increased use of salted cabbages for preparation of kimchi. This study aimed to investigate the safety of heavy metals, pesticide residues, and foodborne pathogens in commercial salted cabbages in Seoul from August to November, 2014. The survey, which was conducted to determine whether or not salted cabbages were prepared under the highest sanitary conditions, showed that Seoulites are interested in purchasing hygienic and safe salted cabbages. The average amounts (range) of Pb and Cd found in 30 salted cabbage samples were 0.007 (0.000~0.063) mg/kg and 0.004 (0.000~0.012) mg/kg, respectively. The cabbages were analyzed for residues from 285 types of pesticides using the multiresidue method. Residues for pesticides were not detected. Major foodborne pathogens, specifically Escherichia coli, Salmonella spp., Listeria monocytogenes, Campylobacter jejuni, Staphylococcus aureus, Vibrio parahaemolyticus, Enterohemorrhagic Escherichia coli, Bacillus cereus, Clostridium perfringens and Norovirus, were also not detected.
경남지역 다문화가정과 일반가정 초등학생들의 식습관, 음식기호도 비교 연구
이주희,정선옥,김창임,Lee, Joo Hee,Jeong, Seon Ok,Kim, Changim 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.6
This study was conducted to investigate the eating habits and food preferences of elementary school children belong to multi-cultural families and ordinary families. The data were obtained by interview based on questionnaire from November to December in 2012. The subjects of multi-cultural families and ordinary families were 99 and 376 children, respectively. In comparison with eating habits, the ordinary children showed higher scoring in the items of eating proteins, green and yellow vegetables, and fruits or fruit juice than those of multi-cultural children. The ordinary children ate less midnight-meals than those of multi-cultural children (p<0.05). Furthermore, the ordinary children ate kimchi more frequently than the multi-cultural children. It was significantly different (p<0.05) on the items of 'eating-out types' dietary habits between two groups. Education of mothers correlated with the ordinary children's eating habits more than multi-cultural families. In the investigation of the food preference to Korean foods, 'beef and radish soup', 'pumpkin porridge', and 'wheat flakes noodles' were more preferred by children of ordinary families than by those of multi-cultural families (p<0.05). To conclude, nutritional education for their parents should be done and maintained to keep a right eating habit of children of multi-cultural families even at home.
흡열판의 종류에 따른 UnglazedPVT 모듈의 성능 실험 분석
천진아(Chun, Jin-Aha),정선옥(Jeong, Seon-Ok),김진희(Kim, Jin-Hee),김준태(Kim, Jun-Tae),조인수(Cho, In-Soo),남승백(Nam, Seung-Baeg) 한국태양에너지학회 2011 한국태양에너지학회 학술대회논문집 Vol.2011 No.11
A photovoltaic/thermal(PVT)collector produces both thermal energy and electricity simultaneously. The heat from PV modules should be removed for better electrical performance, and can be converted into useful thermal energy. A PVT module is a combination of PV module with a solar thermal collector which forms one device that converts solar radiation into electricity and heat. In general, there are two different types of PVT module:glazed PVT module and unglazed PVT module. On the other hand, two types of the PVT module can be distinguished according to absorber on PV module rearside: the sheet-and-tube absorber PVT module and the fully wetted absorber PVT module. The absorber collector plays an important function in PVT system. It cools down the PV module, while collecting the thermal energy produced in the form of hot water. The aim of this study is to compare the electrical and thermal performance of two different PVT collectors, one with the rectangular tube and the other with fully wetted absorber PVT collectors. For this paper, the PVT collectors with two different types of thermal absorber were made, and both the thermal and electrical performance of them were measured in outdoor, and the results were compared. The experimental results were analyzed that the thermal efficiency of the fully wetted absorber PVT collector is about 8.7% higher than the sheet-and-tube absorber PVT collector, and for the electrical efficiency, the fully wetted absorber PVT collector had about7% higher than the rectangular tube absorber.