[논문]Energy Performance and Improvement in University Library - Concentrated on 'K'University Library located in Seojong City -

Roh, Ji Woong

doi:10.12813/kieae.2014.14.4.047

Energy Performance and Improvement in University Library - Concentrated on 'K'University Library located in Seojong City - 원문보기

KIEAE journal = 한국생태환경건축학회논문집, v.14 no.4, 2014년, pp.47 - 52

Roh, Ji Woong (Dept. of Architectural Engineering, Hongik University)

Abstract ▼ AI-Helper

The problem of energy consumption is more serious in university buildings than primary, middle and high school buildings. Because university buildings have generally heating and cooling systems, and various incidental facilities. In university, the library is one of the building that many people use and the most energy is spent. So, investigation on energy saving is very important and urgent. This study aims finally to present the guideline for low-energy design of University library by aiding a designer to select best solution in the side of energy-saving. In this paper, composition of space, utilization schedule and performance of construction materials are grasped, some primary factors that effect to energy saving are analyzed by energy simulation. The result of this study is as follows; First, the subject library has more cooling load than heating load because of cooling load generated during middle season. Second, green roofs is the most effective to heating load saving, but not to cooling energy. Third, outdoor air cooling is the most effective to cooling energy saving among the investigated strategies included in this study.

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문제 정의

4) Outdoor air cooling is proved to be the most effective in reducing energy consumption for cooing among the cases examined in this research. It will be necessary to analyze the detailed outdoor air cooling schedule throughout a year based on this research.
Outdoor air cooling is proved to be the most effective among the cases examined in this research under the condition that the subject building focuses on reducing the heating and cooling load as well as energy consumption. It will be necessary to analyze the detailed outdoor air cooling schedule throughout a year based on this research.
This research aims to assist an architect to make an optimal decision on designs in terms of energy saving when he/she tries to provide a guideline for a low-energy library design. Sejong city was chosen as a target location, and a fundamental case study was conducted in the previous research.

가설 설정

2) The subject building’s cooling load surpasses the cooling load significantly.
3) Roof afforestation is very effective in reducing the heating load, but has negative effects in reducing the cooling load. The reason behind is that negative factors such as blocking radiational cooling in the night time, not positive factors such as solar heat protection, affect a lot.

제안 방법

was used in identifying the amount of internal heat. Based on interviews, week day, weekend, and monthly schedules were surveyed to find out the overall operation schedule. More specifically, the stack room controls temperature for 24 hours while the reading room has different schedules during week days and vacation.
The material property of the building is shown in Table 4, and windows used low-e glass with 24mm thick, as shown in Table 5. During the simulation, the standard climate date provided by the Korean Solar Energy Society was used, and heating and cooling temperatures were set 18℃ and 26℃ respectively.
More specifically, the stack room controls temperature for 24 hours while the reading room has different schedules during week days and vacation. During week days, it provides air conditioning from 8:30 to 24:00 while during vacation, from 8:30 to 24:00 for only some reading rooms in 1^st and 2^nd floors. (see Table 6)
Excluding the basement floor, the simulation modeled the ground floors from 1st to 5th floors, and zoning by use was conducted – the library and service zones.
Outdoor air cooling is proved to be the most effective among the cases examined in this research under the condition that the subject building focuses on reducing the heating and cooling load as well as energy consumption. It will be necessary to analyze the detailed outdoor air cooling schedule throughout a year based on this research.
Targeting the library of K university in Sejong city, the effects of energy saving measures were analyzed based on the building and facility composition and characteristics in the building use. The result The result of this study is as follows;
This research reviewed the standard Case (Case 1) by applying the operation result based on the result of the on-site inspection under the condition that the material properties of the existing walls and windows were applied when windows were closed. To check whether the energy performance of the building was improved, Case 2 with a strengthened wall insulation and Case 3 with roof afforestation were reviewed.
This research used VE (Virtual Environment), an energy analysis program, to analyze improvements for energy saving. Developed by the IES (Integrated Environmental Solutions), VE is an integrated simulation program which include the Apache-sim for a heat simulation, the Radiance for a light environment simulation, the Suncast for a solar radiation analysis, and the ModelIt, a 3D tool to describe a model.

대상 데이터

The subject of the simulation is the 6-story (including a basement floor) library of K university in Sejong city. The basement floor consists of research rooms and seminar rooms.

성능/효과

1) Roof afforestation (Case 3) is the most effective in reducing the heating load while outdoor air cooling (Case 5) is the most effective in reducing the cooling load.

후속연구

However, this research examines the effects of outdoor air cooling in May (Case 5) to compare with Case 1~4, which analyzes the annual effects. It will be necessary for future research to consider detailed control conditions such as controlling the schedule of outdoor air cooling when comparing different systems.

참고문헌 (6)

Cho sung woo, Choi jeong min, Lee kyung hee, The study on the indoor thermal environment and prediction of energy consumption of the school classroom, Journal of the architectural institute of korea planning and design, 2007.02
Hong won hwa, Lee chun mi, Kim ju young, Cho soo, A study on the characteristics of the energy consumption unit of university, Journal of the architectural institute of korea planning and design, 2008.11
An kwang ho, Kim hyung keun, Choi yong seok, A study on energy conservation of eco-friendly school by energy plus, Journal of the architectural institute of korea planning and design, 2011.12
Park kang hyun, Kim su min, Analysis of energy consumption of buildings in the university, Journal of the SAREK, vol.23 no.9 (2011)

원문보기 상세보기
Byun seong hwan, Kim ju young, Hong won hwa, A study on the energy consumption and greenhouse gas emission intensity of library, Proceedings of the korean solar energy society vol.30 no.1, 2010.4
Seok ho tae, Yang jeong hoon, Jung jae woong, A study on the evaluation of energy performance according to greenery cover in education buildings, Journal of the korean solar energy society vol.28 no. 6, 2008

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Energy Performance and Improvement in University Library - Concentrated on 'K'University Library located in Seojong City - 원문보기

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Energy Performance and Improvement in University Library - Concentrated on 'K'University Library located in Seojong City - 원문보기

Abstract ▼ AI-Helper

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문제 정의

가설 설정

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후속연구

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