네트워크-다이아그램기법을 이용한 그린빌딩 환경성능 평가방안에 관한 연구

정근주,김동완,임영빈 대한건축학회 2004 대한건축학회논문집 Vol.20 No.1

The purpose of this impact statement was improve to a method of rating and design for the environmental performance of the green building by that an analyze to the weighting point and the structure of the five rating tools: GBTool, LEED, BREEAM, Korean government's method, CAS BEE. For improve to the accuracy, convenience, effectiveness of the rating and design method from the result of analyzed five tools, this impact statement was suggestion followings; 1) Divided assessment and public announcement that 'Global environmental conservation department' and 'Health & convenience department' at assess and design to the environmental performance of the green building. 2) Using by modified Network-diagram method in the EIA method at assess and design to it. 3) Arrange each 25% of weighting points of energy consumption criteria and air pollution criteria according to above divided condition.

네트워크다이아그램 기법을 이용한 프로토타입 그린빌딩 환경성능 평가프로그램 구축 연구

정근주,김동완,임영빈 대한건축학회 2004 대한건축학회논문집 Vol.20 No.11

The purpose of this study was to analyze the convenience, dearness and effectiveness of the rating system of the GB. This Green Building uses a rating system which includes a network-diagram; Sorensen-network as well as a Sequence-diagram. This study is consisted of a visualized work sheets that were divided into network-diagram, annual energy consumption, air pollution as well as LCC. It has technique of separated rating for the three departments that of the globe environment conservation, health and convenience, construction ability, as well as highest mark such as the object building's performance was which is not considered with non environmental damage level. This program aimed at establishing a weight given to input to default value and needs constant study for this program. Also this study established a inventory database for estimating air pollution quantity.

농촌지역 노인들의 우울증상에 관련된 요인들의 특성

송미숙,전기홍,송현종,김정은,박승구,신상건,이동훈,정성현,최연주,최완철,최민규,황재철,홍지만 아주대학교 1997 아주의학 Vol.2 No.2

This study was performed to identify risk factors for depression among the elderly in a rural area. A survey was done for the elderly living in Gosam-myenn, Ansung-kun during the period of July 28, 1997 and July 30, 1997. Demographic and sodoeconornic characteristics, and functional and health Status were assessed using a structured questionnaire, and the level of depression was measured by GDS score. The data obtained were analyzed by frequencies, percentage, t-test, ANOVA, and multiple regression, and the results were as follows: 1. The total sample consisted of 133 elderly. Of them, 47 elderly (35.4%) showed significant depressive Symptoms. 2. The GDS score was the highest for the group over 85 years of age (p < 0.05). Those living alone or widowed showed lower GDS score than those living with someone or married (p < 0.05). 3. The GDS score was the highest in the absolutely dependent group, followed by the partially dependent group, and the independent group (p < 0.01). The elderly who perceived their health Status as excellent showed the lowest GDS score. In contrast, those who had more than five chronic diseases showed the highest GDS score. 4. The elderly receiving financial and emotional support from their family or friends showed lower GDS score compared to those without any support. 5. The economically dependent group showed higher GDS score than that of independent group. 6. The elderly who involved in leisure activities showed lower GDS score than those without any involvement. 7. In terms of risk factors for depression, we found that perceived health Status, subjective economic Status, leisure activities, living arrangement and financial support were inversely associated with GDS score, whereas labor support was positively associated with GDS score. Based upon the above findings, this study suggests that these risk factors for depression in the elderly should be taken into consideration for a comprehensive mental health program for the elderly living in the rural area.

부산지역 독립주택용 우수저수조의 우수이용률 추산

정근주(Jung Gun-Joo),오근숙(Oh Geun-Sug),서민호(Se Min-Ho) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.3

Nowaday, architecture field has been a big issue which is the sustainable architecture for the environmental protection of earth. In the sustainable architecture field, the reuse of rain water in the building is a category about the water resources conservation, the flood reduction and the protection of underground the biology in the city. The estimation and optimization of rain water reuse equipment are important works at the design of water reuse system in the building but it is not easy work, because an estimate on quantity of rainfall can't decide easily. This research presents a simulation result which is an estimate on coefficient of utilization of a rainwater harvest system(2,000Lit) in a small detached house(Roof area; 85㎡) with the weather data during ten years(2001-2010) in Busan region. In this research, average monthly rain water flow in the roof is approximately 9.9 ton per month, average monthly rain water reuse is approximately 3.8 ton per month, and the average monthly coefficient of utilization is 38.0% during ten years. And the monthly average rain water reuse during the rainy season(from June to September) is higher than the dry season(from October to May). In contrast, the coefficient of utilization of rain water reuse in the rainy season is lower than the dry season, because a large amount of runoff water has occurred in this season. In the next phase, we will study about the optimum of capacity of rain water storage thank and tile estimating method in the detached house in the city.

추운환경에서 발바닥가열 시 피험자 열쾌적 평가

정근주(Gun-Joo Jung) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6

The thermo soles seems to be that it contribute to the thermal sensation in the feet and whole body or not. However, the improvement of thermal comfort on the thermo soles in the cold environment was not evaluated in the recently research. Therefore, this research aim is to the evaluation on the improvement of thermal comfort of subjects with the thermo soles in the cold environment. The research conduct the experiments on the thermal responses of 12 subjects in serial four conditions each 20 minutes. The research measures the variations that ASHRAE 7 scale and 11 scale Thermal sensation vote(TSV, the whole body, the upper half of the body, the lower half of the body, the feet), Mean skin temperature(MST), Sole skin temperature(SST) of the subjects in each experiment conditions.

수열원 히트펌프용 열가소성수지 코팅 STS주름관의 열관류 특성

정근주(Jung, Gun-Joo),이규남(Rhee, Kyu-Nam),장형문(Zhang, Xinwen) 한국건축친환경설비학회 2018 한국건축친환경설비학회 논문집 Vol.12 No.4

Recently, high density poly ethylene (HDPE) tube has been utilized in surface water source heat pump (SWSHP) as a surface water heat exchanger (SWHE). Stainless steel (STS) corrugated tube has much higher heat transfer coefficient (U value) than HDPE tube in SWHE. However, this material cannot be perfectly protected from corrosion when exposed to aggressive water environments. The goal of this work is to increase U value of SWHE when STS corrugated tube is perfectly protected from corrosion by covering polyolefin material on its corrugated surface. In order to verify the thermal performance of proposed tube, U values and friction factors of the proposed tube were compared with those of the HDPE tube. For the evaluation on possible applicability of proposed tube, the economic evaluation of the proposed tube was also performed based on the result from test bed experiments. The results show that the proposed tube leads to 4.65 times higher U value and 2 times higher friction factor than HDPE smooth tube. Despite with the increased friction loss and installation cost, it was revealed that the proposed tube can achieve COP due to enhanced heat transfer performance.

여름철 주간 실제 보행 피험자의 피부온도 측정 실험

정근주(Jung Gun-Joo) 한국건축친환경설비학회 2010 한국건축친환경설비학회 논문집 Vol.4 No.1

Most pedestrians suffer from the heat stress when they are walking on the town street in summer day. The heat stress of human body at the street influence on the human activities such as the student performance, the productivity, etc. in building. Therefore, the research about reduction of heat stress for pedestrian is an important work. The researchers carried out so many issues about thermal environments in the building in world wide. In contrast, there seems to be the poor publishing about the reduction of heat stress for the pedestrian. In the summer day, the streets are so hot because density of sun radiation is so high, the air temperature of surrounding is high. The street trees is a good material for the sun shade in the street. In this research, we survey on two thermal environments of streets. First street has no tree and second one has high density trees. The purpose of this research is to provide the raw data for heat stress reduction research and the reduction method of heat stress for the pedestrian who is walking on the town street in summer day, through that survey on Mean Skin Temperature(MST) and Thermal Sensation Vote(TSV) for the pedestrian subject on the street in summer day in Busan Korea. In conclusion, The pedestrian subject answers "warm" in the street of high density trees. In contrast, the subject answers "hot or very hot" in the street of no tree. MSTs of pedestrian subject was 33.6℃ in the street of high density trees, 34.1℃ in the street of no tree.

28℃냉방 실내에서 얼음부착 자연형냉각재킷의 열쾌적 특성

정근주(Jung, Gun-Joo) 한국건축친환경설비학회 2011 한국건축친환경설비학회 논문집 Vol.5 No.4

For the building energy saving, Korean Prime Minister recommended that the room temperature keep above 28℃ during cooling season in the public facilities. If the facility manager would keep the room’s temperature to the extent, Predicted mean vote(PMV), Percentage of predicted dissatisfied(PPD) with ISO-7730 in the room were approximately 1.2(“slightly warm”), 35%, respectively. The previous research developed the passive cooling jacket(PCJ) with reflection louver and ventilation clothes, and it attached ice packs on the PCJ of which name is ICEPCJ for the human body cooling. The purpose of this research is to improve the thermal comfort with ICEPCJ in the room controlled within 28℃ through the experiment with subjects who are wearing clothes. The research measured MST(Mean skin temperature) and thermal environment parameters, and it asked ASHRAE TSV(Thermal sensation vote 7scale) and DISC(Thermal discomfort 11scale) for the 6 voluntary subjects who are each subject wearing ICPCJ, PCJ, TTJ(Traditional textile jacket) in due sequence. Factors are measured in the experiment room where the controlled conditions were DBT 28(℃), RH 65%, air velocity 0.05(m/sec). In this experiment, TSVs and DISCs of subjects who were wearing ICEPCJ were approximately 0.67 lower than who are wearing PCJ, and 1.83 lower than when wearing TTJ. MST of subjects when wearing ICEPCJ were approximately 0.45℃ lower than when wearing PCJ, and 0.64℃ lower than when wearing TTJ. In conclusion, the ICEPCJ in this research can improve the thermal comfort in the room temperature controlled with 28℃ .

탄소세 적용에 따른 건물용도별 에너지비용 영향 분석

정근주(Jung Gun-Joo),오근숙(Oh Geun-Sug),임영빈(Im Young-Bin) 한국건축친환경설비학회 2008 한국건축친환경설비학회 학술발표대회 논문집 Vol.- No.-

Recently, the member states of European Union and some countries levy the carbon tax(CT) which approximately 3~150 US dollar per ton of CO₂. May be a few years after, South Korea government will have to levy the CT to the energy consumption fields for reduction of GHG because South Korea will not evade the Annex-I level at 2013. The building energy researcher should be effort to CT reduction in the building operation phase through the study as economic evaluation on the renewable energy system in the building. This research were a preliminary study of above which the estimation on the carbon tax influence of the energy cost in the use groups of building. This research using by the data of annual building energy consumption per area(Mcal/㎡year) in South Korea, and IPCC's GHG estimation rule, the other countries CT level. The influence of CT on the building energy was different level through the building use group because each building use group consumes different level of the running energy and different energies as electric power, city gases. In conclusion, if CT will be levied 10,000~15,000 won per ton of CO₂ in korea, the all group's average annual energy cost will rise up 630~9,450(Won/㎡year), the office building group's annual energy cost will rise up 76 0~11,400(Won/㎡year), the commercial building group's annual energy cost will rise up 1,050~15,750(Won/㎡year), the education building group's annual energy cost will rise up 390~5,850(Won/㎡year), the hotel building group's annual energy cost will rise up 1,650~24,750(Won/㎡year), the hospital building group's annual energy cost will rise up 1,270~19,050(Won/㎡year), the telecommunication building group's annual energy cost will rise up 1,760~26,400(Won/㎡year), the apartment building group's annual energy cost will rise up 510~7,650(Won/㎡year).

실내식물 유무에 따른 대학 강의실 IAQ 개선효과와 재실자 PAQ에 관한 연구

정근주(Jung Gun-Joo),오근숙(Oh Geun-Sug),서민호(Seo Min-Ho) 한국건축친환경설비학회 2011 한국건축친환경설비학회 학술발표대회 논문집 Vol.2011 No.10

The purpose of this study is investigating the improvement effects of Indoor Air Quality(IAQ) and Occupants' Perceived Air quality(PAQ) with the indoor plants in university classrooms. First of all, we conduct the measurement survey of IAQ to its original condition in this classrooms. In other words, there is no indoor plants. And then we find out that this classrooms are need of improvement in IAQ. It is especially important to reduce CO2 concentration that was continually increase by respiration of students. So we arranged indoor plants by the windows, and we measured the increasing level of CO2 according to existence of indoor plants. The result of this study is following. The increasing level of CO2 nonexistence IPs was fore times more higher compared to existence of IPs. And PAQ of students actually improve by IPs.