• Journal of the Architectural Institute of Korea Planning & Design
• /
• v.35 no.3
• /
• pp.41-48
• /
• 2019

The purpose of this study is to investigate the environmental factors relating to children's outdoor play and to assess how the residential neighborhood is suitable for play in the perception of parents. Based on a citywide survey of 500 parents of elementary school students in grades 1-4 in Seoul, this empirical study shows that children's outdoor play environments in residential neighborhoods of Seoul have been observed to be overall unsuitable for play activity. Three physical environmental factors (spatial availability, neighborhood attractiveness, and street difficulties) and three social environmental factors (fear of crime, social interactions, and psychological comfort) are related to children's play activity. Five factors, with the exception of the psychological comfort factor, impact the suitability of children's outdoor play environment. Specifically, it is the physical environment, rather than the social environment, that was deemed unsuitable in spite of its impacts. These findings help us understand the current conditions of neighborhood play environments associated with children's play activity. It is necessary to improve parents' perceptions of the play environment and children's play activities by improving the physical environment.

• International conference on construction engineering and project management
• /
• 2017.10a
• /
• pp.337-345
• /
• 2017

The sponge city construction is being carried out in China, and how to reasonably determine the scale of the sponge city facilities is a key point that the planners and designers should seriously solve. In this paper, taking determination of the sponge city facilities in a residential building in Shenzhen as an example, the layout and scales of the rainwater tanks, raingardens, ecological roofs and permeable pavements are decided by using the volumetric method and stormwater management model (SWMM). The calculated results by the two methods are compared and analyzed. The results show that the scales of the sponge city facilities determined by the two methods are almost the same, and it means that any method can be used to determine the scale of sponge city facilities. The volumetric method is relatively simple, and it is suggested to use to determine the scale of sponge city facilities during planning stage. While SWMM is more complex and requires a lot of input conditions, but it can provide the reduction effects of the sponge city facilities for rainfalls with different recurrence periods. Therefore, SWMM is recommended to use the calculation of the hydrological process of the sponge city facilities during the design stage.

• Journal of the Korean housing association
• /
• v.21 no.2
• /
• pp.1-10
• /
• 2010

This study aims to propose alternatives to improve the residential environmental of National Rental Housing for Elderly. To proceed the study, we draw elements of plan for apartment housing for Elderly through literature review, explore actual conditions of residential environment on National Rental Housing for Elderly in Ha-dong, Kim-Jae, do IPA analysis using survey data, and finally, propose prior alternatives for the improvement of National Rental Housing for Elderly based on IPA analysis results. In the results, a lot of the planning elements of apartment housing for Elderly was applied for this site. But living conditions of residents need to be improved based on the result that importance (3.55) is higher than performance (3.18). this study is critical in drawing the direction of plan and improvement alternative by surveying actual residents, and will be used as the source for the National Rental Housing for Elderly project.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.16 no.5
• /
• pp.421-429
• /
• 2004

In Korea, the radiant heating system has been widely used as a residential heating method, which has been modernized to use hot water running into the tubes embedded in the floor structure. According to the recent improvement of living standard of residential buildings, the requirement of the thermal comfort and energy saving in heating system has been raised. Until now, the radiant floor heating system has been controlled by room thermostat installed in the living room, but for better thermal comfort, an individual room control method is adopted as an alternative. Therefore, it is necessary to evaluate the control performance between the current control method and the individual room control method. In this study, the control performance between the two systems is evaluated through the field experiment. And the control performances of room air temperature and energy performances are analyzed through the simulation using TRNSYS. Firstly, the simulations are performed in the various outdoor conditions and the flow rates and the simulation results are analyzed for the control performances. Also, to evaluate the energy performance, the simulations are performed under the operating conditions in which the set-point of the room air temperature is fixed or changed according to the schedule of occupancy, and the simulation results are analyzed between the two methods.

• Proceeding of Spring/Autumn Annual Conference of KHA
• /
• 2009.11a
• /
• pp.61-66
• /
• 2009

This study aims to propose alternatives to improve the residential environmental of National Rental Housing for Elderly. To proceed the study, we draw elements of plan for apartment housing for Elderly through literature review, explore actual conditions of residential environment on National Rental Housing for Elderly in Ha-dong, Kim-Jae, do IPA analysis using survey data, and finally, propose prior alternatives for the improvement of National Rental Housing for Elderly based on IPA analysis results. In the results, a lot of the planning elements of apartment housing for Elderly was applied for this site. But living conditions of residents need to be improved based on the result that importance (3.55) is higher than performance (3.18). this study is critical in drawing the direction of plan and improvement alternative by surveying actual residents, and will be used as the source for the National Rental Housing for Elderly project.

• Architectural research
• /
• v.15 no.3
• /
• pp.133-141
• /
• 2013

The purpose of this paper is to highlight the main policies of the last half century that have shaped the urban architectural fabric of Seoul today, and explore whether a modified approach might better address the current socioeconomic conditions in Korea. The paper defines and examines urban planning in Korea through an overview of the four main urban project policies implemented in Seoul from the 1960s to the present: Land Readjustment (LR), Housing Site Development (HSD), Urban Redevelopment (UR), and Housing Reconstruction (HR). While the fundamental ideology behind these policies served well during a prolonged period of high economic growth, evidence is growing that these policies are losing steam under today's conditions. A growing legacy of stalled and incomplete urban projects from the mid-2000s-the New Town Project is an example-begs the fundamental question as to whether an alternative urban planning paradigm is needed for Korea in an age of low economic growth, low birth rates and a fossil fuel energy crisis. Through the urban morphologies of the three residential areas in Seoul developed by LR projects, this paper looks at the possibility of urban regeneration through the sustainment of urban architecture in those residential areas that have not been affected by HSD, UR, and HR.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2009.05c
• /
• pp.61-64
• /
• 2009

The number of apartment houses has accounted for more than 50% of all domestic residential types in Korea since 1980s. However, the apartment house has environmentally disadvantageous conditions such as highly residential-density and potential falls by children aged seven years and under through windows. In this study, we aim to suggest some ideas to improve domestic performance assessment methods and criteria of window Insect screens for protection on security and fall prevention by analyzing domestic standard with several overseas codes related to the screens for windows.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
• /
• v.15 no.12
• /
• pp.987-995
• /
• 2003

The performance of a residential heating and cooling system with $CO_2$ is predicted by using a cycle simulation model. The simulations are conducted by varying design parameters and operating conditions. The efficiency of the transcritical cycle can be improved by utilizing the advantages in heat transfer characteristics of $CO_2$ and developing microchannel indoor and outdoor heat exchangers. For the designed system of this study, the predicted COP of the heat pump system is approximately 3.5 in the heating mode and 3.0 in the cooling mode. The predicted optimal discharge pressure for the heat pump system is approximately 11 MPa in the heating mode and 9 MPa in the cooling mode.

• Journal of the Korean housing association
• /
• v.17 no.2
• /
• pp.11-18
• /
• 2006

For the more comfortable thermal environment in residential buildings, it was necessary for variable components like as automatic flow limiting valves and/or balancing valves in hydronic system. And, these components had an effect on flow-rate and pressure inside pipe. In this case, the incompatibility between the design for the heating system and the selection of equipment was the causes of several problems in heating pipe network. In this study, we peformed measurements and analyses of flow rate and pressure inside pipe for radiant floor heating in residential buildings through field surveys and experiments in order to find out the actual conditions and problems. On the basis of this, we suggested the approach for the optimal flow-rate and pressure maintaining inside pipe in individual heating system.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2011.11a
• /
• pp.136-137
• /
• 2011

The final purpose of this study is to develop a hybrid ocean power generation system which has innovate and very high efficiency performance, and which can be operated on both emergency and normal conditions. So, A survey on the electricity power consumption of residential areas at island on south coast.