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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal Basic Information
Journal DOI :
Korea Institute of Ecological Architecture and Environment
Editor in Chief :
Volume & Issues
Volume 16, Issue 4 - Aug 2016
Volume 16, Issue 3 - Jun 2016
Volume 16, Issue 2 - Apr 2016
Volume 16, Issue 1 - Feb 2016
Selecting the target year
The Study on Thermal Performance Evaluation of Building Envelope with VIPs
Jeon, Wan-Pyo ; Kwon, Gyeong-Jin ; Kim, Jin-Hee ; Kim, Jun-Tae ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 5~10
DOI : 10.12813/kieae.2016.16.1.005
Purpose: The energy consumption in buildings has continuously increased in some countries and it reaches almost 25% of the total energy use in korea. Therefore there are various efforts to minimize energy consumption in buildings, and the regulations on building envelope insulation have been tightened up gradually. To satisfy the building regulation, the use of vacuum insulation panels(VIPs) is increasing. VIP is a high performance insulation materials, so that it can be thinner than conventional insulation material. When VIP is applied in a building, it may cause thermal bridge, which occurs due to very low thermal conductivity compared to other building materials and the envelope of VIPs. Method: This study designed the capsulized VIPs using conventional insulation for reduction of the thermal bridge. Then designed VIPs were applied to a wall. The linear thermal transmittance and the effective thermal conductivity were analyzed by HEAT2 simulation program for two dimensional steady-state heat transfer. The result compared with a wall with non-capsulized VIPs. Result: It analyzed that the wall with capsulized VIPs had lower linear thermal transmittance and reduced the difference of the effective thermal transmittance with one dimensional thermal transmittance compared to that of the wall with non-capsulized VIPs.
A Comparison between In-situ PET and ENVI-met PET for Evaluating Outdoor Thermal Comfort
Jeong, Da-in ; Park, Kyung-hun ; Song, Bong-guen ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 11~19
DOI : 10.12813/kieae.2016.16.1.011
Purpose: PMV, PET, and similar thermal comfort indices and microclimate modeling have recently become actively used to evaluate thermal comfort. This study will look at pedestrian roads with diverse spatial characteristics on university campus using the ENVI-met model as the base for onsite measurement. Method: The PET was used as the thermal comfort index. The first microclimate measures were collected on September 20, 2014, and the second microclimate measures were collected on June 1, 2015. The ENVI-met model was used at the same time. Result: As a results, Onsite measurement results differed depending on the PET spatial characteristics. The location associated with the most discomfort had a PET of
. The spatial characteristics of this place included a with no shade. The most comfortable location had shade, and the PET was
. When the ENVI-met model and onsite measurements were compared, similar patterns were found, but with a few differences at specific points; this was due to the limitation of using input materials such as trees, buildings, and covering materials with the ENVI-met model. This factor must be thoroughly considered when analyzing modeling results.
Variation of Energy Consumption in Barracks through Simulation by Year of Completion
Choi, Doo-Sung ; Jeon, Hung-Chan ; Cho, Kyun-Hyong ; Yoo, Jeong-Seong ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 21~28
DOI : 10.12813/kieae.2016.16.1.021
Purpose: The purpose of this study is to analyze & suggest the variation of energy consumption consequent on thermal insulation performance strengthening from early 2000s when modernization of barracks began until the present targeting a large barracks. Method: To carry out this research, this study surveyed the standard of thermal insulation by year, which is being applied to a barracks by conducting literature search, and selected the standard model for a barracks. Also, this study analyzed energy consumption by year & region by performing simulation(ECO2)of the selected standard model. Result: As a result, it was analyzed that in case of a building which was completed in 2015, the energy consumption for air-conditioning & heating, lighting, and hot water supply over the year 2000 reduced by 11% on the average in central district, 10% on the average in southern district, and 17% on the average in Jeju, respectively.
Heating and Cooling Load of Building according to Atrium Layout
Jeong, Nam-Young ; Lee, Ji-Young ; Chae, Young Tae ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 29~36
DOI : 10.12813/kieae.2016.16.1.029
Purpose: The purpose of this study is to present basic data which would be applied on the early stage of the architectural design. And that determines the introduction of the atrium by comparing and analysing the environmental performance of atrium building. Method: The building forms are classified into low storied building, middle storied building and high storied building. This study compares and analyses energy performance of the standard building without atrium and the atrium building which has one-side, two-side, three-side, four-side, and linear atrium by measuring of annual heating and cooling load with EnergyPlus. Result: As a result of the analysis of the relative annual heating and cooling load by building type, it is shown that the fluctuation of cooling load in low storied building is large because heat storage in atrium affects building, and the fluctuation of heating load in high storied building is large owing to the effect of external wall area of atrium which makes heat loss. Especially, it indicated the largest annual heating and cooling load in four-side atrium of low storied building, and in one-side atrium of high storied building.
The Design Criteria for the Model Development of the New-hanok Type Public buildings - Focused on Expert Opinion Surveys -
Park, Joon-Young ; Bae, Kang-Won ; Kim, So Young ; Jung, Kyung-Yoon ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 37~45
DOI : 10.12813/kieae.2016.16.1.037
Purpose: According to the characteristic of hanok public building, Planning criterion of structure, technology, efficiency, design is needed which can includes various type of new-hanok type public buildings. In this paper, we collect expert opinions to be used as a basis for developing models of New-hanok type Public Buildings. Method: This study was conducted in Research Study and expert surveys. The Part of reviewing Study looked at conception of new-hanok type public buildings model development and overview planning criterion set briefly. Expert surveys were targeted to professors and architects who are related in new-hanok type public buildings model development research. Result: In this study, we suggest improvement direction about planning criterion of new-hanok type public buildings model development based on opinions collected by expert surveys. In conclusion, first, In concept and legal status, it is necessary to adjust clearly than the term and legal status of new-hanok type. Second, various applicability is needed by using new materials and new construction method at the part of planning elements. Third, `composed structure-convergence type` and `composed structure-juxtaposed type` should be clearly classified or combined at the part of Setting of type. Forth, improvement on heat insulation, soundproof, waterproof efficiency is demanded to roof, wall, window systems. Fifth, arranging revitalization plan is important.
Developing Technology Influence Matrix to Support Decision-making for Long-life Housing Planning - Focused on Exclusive Housing Unit of Long-life Housing -
Song, Sanghoon ; Bang, Jong-Dae ; Park, Ji-Young ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 47~55
DOI : 10.12813/kieae.2016.16.1.047
Purpose: Long-life housing causes unavoidable cost increase while providing higher durability, flexibility, and repair easiness compare to those of normal apartment. The effectiveness should be evaluated considering the level of passing mandatory Long-life housing Certification System when supplying specific size of apartment complex. Thus, it is essential to identify the estimated costs and the obtainable grade by applying the optional element technologies selectively during the design phase. This study aimed to suggest the technology influence matrix(TIM) to support decision-making of element technologies in planning stage of long-life housing. Method: The technology influence matrix was established based on the property information about applicable element technologies for long-life housing such as construction methods, interface types, cost data, and certification-related characteristics. The usefulness of TIM was verified through case study, in which TIM was applied to the exclusive housing unit and the influences from four areas of quantity, cost, certification, and schedule were identified and calculated. Result: TIMs covering four areas representing the essential planning factors were developed, and are expected to contribute to sound decision-making in planning long-life housing.
Review of New Technologies` Energy Conservation Rate in High-Performance Buildings
Kim, Chul-Ho ; Yang, Ja-Kang ; Lee, Seung-Eon ; Yu, Ki-Hyung ; Kim, Kang-Soo ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 57~65
DOI : 10.12813/kieae.2016.16.1.057
Purpose: The purpose of this study is to analyze the energy performance by applying new technologies for passive and active control. Method: We selected new technologies for passive and active control which are based on formal study by analyzing technology applied to the High-Performance Buildings in various countries. Also, we analyzed energy saving potential for each technologies by breakdown the result of the energy saving rates in detail. Result: For the wall and roof insulating methods, preceding studies showed that up to 21% energy could be saved by improving roof insulation and applying proper outside insulation compared to non-insulation. For the windows and glazing system, preceding studies showed that Low-E glazing system could save up to 11% energy compared to single glazing system. Studies about solar and daylighting controls revealed that effective daylighting dimming control could save 13% of energy compared to uncontrolled situation. Studies on DOAS (Dedicated Outdoor Air System) showed that about 23% energy could be saved compared to standard VAV system. Studies on the active chilled beam showed that about 25% energy could be saved compared to standard VAV system and studies of applying UFAD (Under Floor Air Distribution) could consume 31% less energy than applying overhead system.
Runoff Reduction Effect of Rainwater Retentive Green roof
Baek, So-Young ; Kim, Hyun-Woo ; Kim, Mi-Kyeong ; Han, Moo-Young ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 67~71
DOI : 10.12813/kieae.2016.16.1.067
Purpose: There is a growing interest in rainwater runoff reduction effect of green roof, as flooding caused by increasing impervious surface is becoming more and more frequent in urban areas. This study was conducted to prove runoff reduction and runoff delay effect of the retentive green roof and to investigate its influencing factors to the rainfall events that occurred in the summer of 2013. Method: The experiment intended to monitor the runoff quantity of the retentive green roof(
) and normal roof(
) in #35 building in Seoul National University, Seoul, Korea for 75 days in 2013. Result: On analysis of 9 rainfall events, it showed that the retentive green roof has 24.8~100% of runoff reduction ratio, 21.2~100% of peak flow reduction ratio, 0.5~3.75 hours of peak delay, and
of retaining capacity in an area of
. It shows different results depending on rainfall and antecedent dry days. The results show that runoff reduction effect is effective when the rainfall is less than 50 mm and antecedent dry day is longer than five days on average. By installing retentive green roofs on buildings, it can help mitigate urban floods and rehabilitate urban water cycle.
Computer simulation study to generate an optimal hydrologic model based on the soil properties of the large area plate roof greenery system
Kim, Tae-Han ; Lee, Ji-Won ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 73~79
DOI : 10.12813/kieae.2016.16.1.073
This study aimed to investigate the flood prevention effect expected from the afforestation of a large area metal roof of an industrial complex located in an area prone to floods in the rainwater outflow reduction aspect through computer simulation based on soil, which is a key element of the system. In order to conduct a more realistic simulation, the properties of the surveyed soil were generated through substantive analysis, soil texture analysis, and saxton method. A comparative performance evaluation was conducted by using soil depth and ponding depth, which are key elements of the system, as variables. The study result showed that during the heavy rainfall period, the bottom ash artificial soil had 61% rainwater outflow reduction effect, which was 11% higher than the SWMM standard sand.
Numerical heat transfer analysis methodology for multiple materials with different heat transfer coefficient in unstructured grid for development of heat transfer analysis program for 3 dimensional structure of building
Lee, Juhee ; Jang, Jinwoo ; Lee, Hyeonkyun ; Lee, Youngjun ; Lee, Kyusung ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 81~87
DOI : 10.12813/kieae.2016.16.1.081
Purpose: Heat transfers phenomena are described by the second order partial differential equation and its boundary conditions. In a three-dimensional structure of a building, the heat transfer phenomena generally include more than one material, and thus, become complicate. The analytic solutions are useful to understand heat transfer phenomena, but they can hardly be applied in engineering or design problems. Engineers and designers have generally been forced to use numerical methods providing reliable results. Finite volume methods with the unstructured grid system is only the suitable means of the analysis for the complex and arbitrary domains. Method: To obtain an numerical solution, a discretization method, which approximates the differential equations, and the interpolation methods for temperature and heat flux between two or more materials are required. The discretization methods are applied to small domains in space and time, and these numerical solutions form the descretized equations provide approximated solutions in both space and time. The accuracy of numerical solutions is dependent on the quality of discretizations and size of cells used. The higher accuracy, the higher numerical resources are required. The balance between the accuracy and difficulty of the numerical methods is critical for the success of the numerical analysis. A simple and easy interpolation methods among multiple materials are developed. The linear equations are solved with the BiCGSTAB being a effective matrix solver. Result: This study provides an overview of discretization methods, boundary interface, and matrix solver for the 3-dimensional numerical heat transfer including two materials.
preprocessing methodology to reducing calculation errors in 3 dimensional model for development of heat transfer analysis program for 3 dimensional structure of building
Lee, Kyusung ; Lee, Juhee ; Lee, Yongjun ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 89~94
DOI : 10.12813/kieae.2016.16.1.089
This study is part of three-dimensional(3D) heat transfer analysis program developmental process. The program is being developed without it`s own built in 3D-modeller. So 3D-model must be created from another 3D-modeller such as generic CAD programs and imported to the developed program. After that, according to the 3D-geometric data form imported model, 3D-mesh created for numerical calculation. But the 3D-model created from another 3D-modeller is likely to have errors in it`s geometric data such as mismatch of position between vertexes or surfaces. these errors make it difficult to create 3D-mesh for calculation. These errors are must be detected and cured in the pre-process before creating 3D-mesh. So, in this study four kinds of filters and functions are developed and tested. Firstly, `vertex error filter` is developed for detecting and curing for position data errors between vertexes. Secondly, `normal vector error filter` is developed for errors of surface`s normal vector in 3D-model. Thirdly, `intersection filter` is developed for extracting and creating intersection surface between adjacent objects. fourthly, `polygon-line filter` is developed for indicating outlines of object in 3D-model. the developed filters and functions were tested on several shapes of 3D-models. and confirmed applicability. these developed filters and functions will be applied to the developed program and tested and modified continuously for less errors and more accuracy.
A Study on the Community Space that Affect the Public Rental Housing Satisfaction Determinants
Park, Joon-Young ; Jeong, Jae-Jin ; Park, woo-Jang ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 95~101
DOI : 10.12813/kieae.2016.16.1.095
This study aims to analyze the satisfaction targeted community space for public rental housing tenants a real community space. and community space is analyzed only through the factor analysis of the effects of satisfaction, multiple regression analysis etc. As a result, the space community and public rental housing will only affect the satisfaction, factors affecting such analysis was `common space`, `exercise place`, `resting place`. Thus, a variety of political and institutional efforts and practical research for interactive spatial planning public rental housing estates satisfaction for the improvement and community activation moving away from passive concept of the one-way ever to supply that community space in the past, provider centers and considering the tenant characteristics is required.
Application of Multi-Purposed Emotional Space for Renewing Idle Spaces around Core Cultural Facilities - Focused on the National Asian Culture Complex -
Kim, Seulki ; Han, Seung-Hoon ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 103~110
DOI : 10.12813/kieae.2016.16.1.103
Purpose: This study suggests the multi-purposed emotional space that is one of the alternatives to reuse idle spaces in the city. Because human who is living in modern society begins pursue new contents and leisurely life all the time and live toward the period of high emotion with personal characteristics, architectural industry also need to change its planning and design to satisfy contemporary man and to adjust rapid social mobility. Method: For this study, the buildings where are located near Asia Cultural Complex (ACC) and leaved as idle spaces now that is used for important facilities are used to apply the multi-purposed emotional Space. Essential methodology and terminology were examined to estimate and construct the multi-purposed emotional space. Result: The multi-purposed emotional space provides that people aggressively request subjects to satisfy their emotional attractiveness as well as comforts and pleasures beyond the functional basic requirements in space. On the other words, it can be regarded as limited context to physical space responsive to social and environmental changes for the surrounding, and may maximize user experiences. Since emotions tend to be abstract and subjective while architectural space has pretty physical properties, this study attempts to integrate contrastive properties between emotional and architectural spaces to make a real object.
A Study to Extract Sustainable Planning Characteristics of Future Skyscraper from Competition Awarded Housing Projects
Qi, Ting ; Lee, Yeun-Sook ; Kang, Hye-Yon ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 111~120
DOI : 10.12813/kieae.2016.16.1.111
Purpose: The purpose of the study was to extract the sustainable characteristics of skyscraper housing design. Method: The method of the study was literature survey and content analysis techniques, and the target cases were 8 skyscraper housing design projects awarded from eVolo Skyscraper international competition. The sustainable features for analysis were categorized into social, cultural, economical and ecological sustainability and total 26 elements. Result: As a result, important elements were extracted, and profiles of elements in the projects were delineated, out of 26 design elements: `Aesthetics`, `Climate Change`, `Resource Using Efficiency`, `Technical Innovation`, `local Employment` were shown dominant. While 8 projects showed the whole range of 26 elements, even though the project what by now is still an important problem for skyscraper, the result gives an insight into future sustainable skyscraper housing design.
A Study on Introduction of Nature in Le Corbusier`s Architecture
Lee, Sung-Ho ; Yun, Hee-Jin ;
KIEAE Journal, volume 16, issue 1, 2016, Pages 121~130
DOI : 10.12813/kieae.2016.16.1.121
Purpose: This paper is an attempt to explicate the principle of space and form-making in Le Corbusier`s architecture from the viewpoint of integrating and relating architecture with the natural landscape. It shows thereby how the geometrical element of architecture and the non-geometrical element of the nature coexist in terms of form. It also explains how space is deployed for the construction of cognitive system between natural landscape and architectural scenery in terms of space, hoping to make a contribution to design method of contemporary house as an elementary datum. Method: Three issues are studied, focusing on the designs around nineteenth thirties in the earliest phase of Le Corbusier: How architectural form and nature is related, how natural greens is introduced into urbanism, and how natural landscape is introduced to house design. 1) it is studied how the relation between the nature and the formal elements of purism in Le Corbusier`s architecture is formed. 2) it is studied how the relation between the nature and architecture proposed in Le Corbusier`s urbanism is formed. 3) Le Corbusier`s "four compositions" is analyzed in terms of relation-formation between architectural space and the nature. 4) it is studied how the natural landscape is introduced to Le Corbusier`s house-design in the form of architectural promenade. Result: It has been found out that the natural landscape in Le Corbusier`s architecture is not just a simple background, but a necessary element for the consummation of form and space in his architecture, and that architectural inspiration is maximized with coexistence with nature.