• Proceedings of the Safety Management and Science Conference
• /
• 2008.11a
• /
• pp.641-647
• /
• 2008

Since korea must get 5.2% reduction of green gas emission and insecurity of economic impact is on the increase due to unstable oil market, the demands of energy saving techniques are increasing. In this paper, we investigate necessity of development of enormous energy used cleanroom energy saving techniques furthermore we also investigate the adoption of dependability management system to develop the energy saving cleanroom development process.

• Journal of the Korean housing association
• /
• v.10 no.1
• /
• pp.63-73
• /
• 1999

The purpose of this study is to provide new design techniques for designers to design energy saving balcony in the apartment house using solar energy passively. These design techniques are examined with some samples of foreign buildings used solar energy passively. To classify these design techniques, this study sorts out the energy saving design elements from the preliminary studies. The results of this study show how to apply each design technique to the design of balcony in the apartment house and present a classification table of these techniques. Finally, this study suggests a design solution which can be applied in the design of balcony in existing apartment house.

• Journal of the Korean Solar Energy Society
• /
• v.25 no.1
• /
• pp.57-64
• /
• 2005

The present society have been polluted the earth environment by the rapid industrial growth. So, the meaning of sustainable development is doing more important. Therefore the technology skills of sustainable architecture techniques have been studied many-side of energy as like energy saving and substitutive energy. But, See the studies until now, there have been just one system either energy saving or substitutive energy. So, the paper studies about energy saving system with substitutive energy system(the double-skin facade system with PV modules) and presents the performance of system through the analysis of reduction of the energy load, the solar radiation on the slope angle of PV module, the blind effect in system.

• Journal of the Korean Solar Energy Society
• /
• v.27 no.3
• /
• pp.127-133
• /
• 2007

Underfloor air distribution system is generally known to be more energy-saving and provide more comfort as compared with overhead air distribution system. In practice, however, some buildings to which underfloor air distribution system is applied have less effectiveness in saving energy and are getting dissatisfaction with cold draft caused by wind velocity of air distribution in terms of comfort. It is judged that such problems are due to failure to consider properties of underfloor air distribution system in applying it and identical design with the design standards for the existing overhead air distribution system. This study aims at introducing an air conditioning type of the occupied zone for underfloor all distribution system to see its effectiveness in saving energy for air conditioning of the occupied zone through a comparative simulation with the existing air conditioning type.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
• /
• 2004.11a
• /
• pp.329-333
• /
• 2004

The human beings have increased concern about Energy saving and alternative energy. The power demand has increased the growth of industry and the improvement of life. We have to explore alternate energy sources and utilize effectively domestic resources. The lighting equipments developed Energy saving by using an electric ballast. The load installation should be promoted to rational power management, according to the network, inteligent, and high-function. Therefore, this paper has studied the method of energy saving and consulting.

• Proceedings of the KIEE Conference
• /
• 2003.07b
• /
• pp.1102-1104
• /
• 2003

The human beings have increased concern about energy saving and alternative energy. The Power demand has increased the growth of industry and the improvement of lift. We have to explore alternate energy sources and utilize effectively domestic resources. The lighting equipments developed energy saving by using an electric ballast. The load installation should be promoted to rational power management according to the network, intelligent and high-function. Therefore, this paper has studied the method of energy saving and consulting.

• JOURNAL OF ELECTRICAL WORLD
• /
• no.12 s.132
• /
• pp.23-30
• /
• 1987

• 한국신재생에너지학회:학술대회논문집
• /
• 2007.06a
• /
• pp.831-835
• /
• 2007

Energy Saving is one of worldwide emerging issues. These days, applicable techniques of railway vehicle's regenerative energy are investigating in worldwide railway industries. Energy saving methods are "Downsizing energy loss" and "Re-utilizing kinetic energy". Useful plans for Downsizing energy loss are "adjusting operation table" and "optimizing running pattern". Furthermore, regenerative energy that is produced with decreasing speed and stoping, is an important element with reducing vehicle's weight, raising equipment 's efficiency, decreasing running resistance and re-configurating running pattern. Sustainable energy storage mass : Flywheel, EDLC(electrical double layer capacitor) and Secondary battery are applied in overseas, but these cases are not reported within the country. This research is reported for problems and economical validity that comes from by installing sustainable regenerative energy storage system in korean railway industries.

• International conference on construction engineering and project management
• /
• 2015.10a
• /
• pp.559-563
• /
• 2015

Identification of energy use patterns in buildings has a great opportunity for energy saving. To find what energy use patterns exist, clustering analysis has been commonly used such as K-means and hierarchical clustering method. In case of high dimensional data such as energy use time-series, data reduction should be considered to avoid the curse of dimensionality. Principle Component Analysis, Autocorrelation Function, Discrete Fourier Transform and Discrete Wavelet Transform have been widely used to map the original data into the lower dimensional spaces. However, there still remains an ongoing issue since the performance of clustering analysis is dependent on data type, purpose and application. Therefore, we need to understand which data reduction techniques are suitable for energy use management. This research aims find the best clustering method using energy use data obtained from Seoul National University campus. The results of this research show that most experiments with data reduction techniques have a better performance. Also, the results obtained helps facility managers optimally control energy systems such as HVAC to reduce energy use in buildings.

• KIEAE Journal
• /
• v.12 no.2
• /
• pp.111-116
• /
• 2012

Faced with the international issue of environmental problems from global warming and energy consumption, the Korean Government has made many efforts on reducing energy and $CO_2$ emission under the motto of "Low-Carbon Green Growth". In order to reduce energy in the building sector, severe design standards and regulations on saving energy in new buildings have been established. Now, it is necessary to focus on deteriorated buildings where applications of energy saving designs and techniques have been insufficient, for maximizing energy saving in the building sector. Specially, it is very important to reduce energy through the remodeling process at deteriorated school buildings which were built over 20 years ago and sharply changed into the excessive energy consumption structure from new educational curricula. Thus, this paper examined the effects of potential factors to reduce energy at deteriorated elementary school buildings using the energy simulation on the Visual DOE 4.0 program. Among applied factors of insulations, southern louver, window's SHGC, indoor setup temperature, and system efficiency, all factors except window's SHGC turned out contribute to reduce energy at the deteriorated elementary school buildings, compared with the baseline energy performance.