• Title/Summary/Keyword: hinged door

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A Numerical Study on Pressure Fluctuation and Air Exchange Volume of Door Opening and Closing Speeds in Negative Pressure Isolation Room (음압격리병실에서의 병실 문의 개폐속도에 따른 실간 압력변동 및 공기교환량에 대한 해석적 연구)

  • Kim, Jun Young;Hong, Jin Kwan
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.24 no.1
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    • pp.51-58
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    • 2018
  • Purpose: In this study, through the comparison of the pressure fluctuation and air exchange volume in negative isolation room according to the type of the door and door opening/closing speeds, which is one of the main factors causing the cross contamination of the negative pressure isolation room, establishes standard operating procedures to prevent cross contamination in high risk infectious diseases and isolation room design. Methods: In this study, the air flow each of the room is analyzed using ANASYS CFX CODE for flow analysis. In addition, the grid configuration of the door is constructed by applying Immersed Solid Methods. Results: The pressure fluctuation due to the opening and closing of the hinged door was very large when the moment of the hinged door opened and closed. Especially, at the moment when the door is closed, a pressure reversal phenomenon occurs in which the pressure in the isolation room is larger than the pressure in the anteroom. On the other hand, the pressure fluctuation due to the opening and closing of the sliding door appeared only when the door was closed, but the pressure reversal phenomenon not occurred at the moment when the sliding door was closed, unlike the hinged door. As the opening and closing speed of the hinged door increases, the air exchange volume is increased. However, as the opening and closing speed of the sliding door is decreased, the air exchange volume is increased. Implications: According to the results of this study, it can be concluded that the pressure fluctuation due to the opening and closing of the hinged door is greater than the pressure fluctuation due to the opening and closing of the sliding door. In addition, it can be confirmed that the pressure reversal phenomenon, which may cause to reduce the containment effect in negative pressure isolation room, is caused by the closing of the hinged door. Therefore, it is recommended to install a sliding door to maintain a stable differential pressure in the negative isolation room. Also, as the opening and closing speed of the hinged door is slower and the opening and closing speed of the sliding door is faster, the possibility of cross contamination of the room can be reduced. It is therefore necessary to establish standard operating procedures for negative isolation room for door opening and closing speeds.

A Study on the Windows and Doors of Jecheon Park Dosu's House and Jeong Wontae's House (제천 박도수가옥 및 정원태가옥의 창호에 관한 연구)

  • Lee, Wan-Geon
    • Korean Institute of Interior Design Journal
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    • v.23 no.5
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    • pp.96-103
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    • 2014
  • This study investigated the windows and doors of Jecheon Park Dosu's House and Jecheon Jeong Wontae's House, designated as a Important Folklore Cultural Heritage in Jecheon. It aimed to contribute to the study of traditional house, and to the conservation policy of architectural Heritage in Jecheon. This study used the research methods of the literature analysis and the field survey, and it was to analyze the spatial characteristics of the windows and doors in each building. The result are as followings. Firstly, the wooden board door(板張門) of a hinged door type is found in the kitchen of An-chae, and the Bongchang(封窓) and Gwangchang(光窓) towards the courtyard is installed for ventilation and lighting. Secondly, the slender-ribbed windows and doors(細箭 窓戶) of double swinging type towards the courtyard is installed in An-bang, and Merum(遠音) is found. Thirdly, the framed panel door(骨板門) of a hinged door type towards the backyard is found in Daechung(大廳). Lastly, the slender-ribbed windows and doors of double swinging type towards the outside is found in Sarang-bang of Sarang-chae, and Merum(遠音) is installed. Especially, double skin windows and doors is installed in Jecheon Park Dosu's House.

A Study on the Structural Characteristics and Metal Ornament of Jeonju-Jang (전주장의 구조적 특징과 금구장식 연구)

  • Baik, Da hee;Lim, Seung Taek
    • Journal of the Korea Furniture Society
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    • v.28 no.3
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    • pp.207-223
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    • 2017
  • Jeonju-Jang is the wood furniture that was made in Chonbuk Jeonju province during the Joseon Dynasty, and was used by middle-upper social classes. It has value as a local cultural heritage because it has unique characteristics in terms of the shape of the furniture, the metal ornament and various functions are integrated in accordance with user's requirements. Therefore, the purpose of this study is to define the structural characteristics of the Jeonju-Jang through case studies of 16 existing artifacts in order to preserve and inherit the value as local cultural resources. The conclusion is as follows. First, Jeonju-Jang in the late period of Joseon Dynasty that is made up of one board to the bottom with the binding of the board. and the front wall, the Juibyuckkan and the Meoruemkan are omitted or made small, so the structure of the surface is simple. There are three or four drawers under the Cheon pan(top plate). There are drawers and shelf inside the hinged door. In the case of a two-layer type, there is a Gaegumeong type door which has half of one side hinged. Second, Jeonju-Jang of the Japanese Ruling Era had a Juibyuckkan by frame binding and an increase in the number of Meoruemkan. and it had independent legs. The Cheon-pan(top plate) was more left and right than both sides. Third, in the late Joseon Dynasty period as a feature of the metal ornaments, cast iron and yellow brass were used as materials. In the Japanese Ruling Era, nickel was mainly used. Various patterns were engraved and the number increased, and it became gorgeous surface as a whole.

A Location Survey of the Residential Environment of Detached House Where A Very Old People Lives Alone (단독가구 고령자가 거주하는 독립주택의 주거환경 실측)

  • 김현진;김학민;안옥희
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2000.11b
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    • pp.91-95
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    • 2000
  • With 106 detached houses where the aged people live alone, this study was conducted to perform a location survey of their residential environment. The result of this study is summarized as follows: While the surveyed houses' safety, sanitation and convenience appeared to be positive, with respect to the conditions of location, 73% of the surveyed houses did not meet the requirement for comfort. The average area of each space indicated that the bedding room was 12.05$m^2$, the living room 14.71$m^2$, the kitchen 9.06$m^2$, the bathing room 4.05$m^2$, and the rest room 2.59$m^2$. Then, 93.3% of the bedding rooms had the doorsill. Also, 97.2% of the surveyed houses had retrievable space. The form of their living room door showed a hinged door(54.5%) and a sliding door(45.5%) which were similar with each other. The finished material was that wood accounted for 42.6% which was highest. The cooking table form of kitchen was mainly "\ulcorner"-shaped(49.5%) and "\ulcorner"-shaped(48.5%) which were highest, and their average height appeared to be 815mm. The fuel used for kitchen was that gas accounted for 93.3%, while 95.2% of the surveyed houses was not equipped with any gas-warning device. 75.5% had an integrated type of bath room and toilet. In addition, the stepped difference between the bath room and other space was that 70.8% had the difference, but they had no a satisfactory sliding-prevention device(Not for 91.6%) or heating system(Not for 92.9%).stem(Not for 92.9%).

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A Survey of the Residential Environment of Detached House of Elderly People (고령자가 거주하는 독립주택의 주거환경 실측)

  • Kim, Hyun-Jin;An, Ok-Hee
    • Korean Journal of Human Ecology
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    • v.12 no.1
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    • pp.85-94
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    • 2003
  • With 106 detached houses where the elderly people lives, this study was conducted to perform a survey of their residential environment. The results of this study were summarized as follows: While the surveyed houses' safety, sanitation and convenience appeared to be positive, with respect to the conditions of location, 73.6% of the surveyed houses did not meet the requirements for comfort. The average area of each space indicated that the bed room was $12.09m^2$, the living room $14.38m^2$, the kitchen $8.96m^2$, the bath room $3.93m^2$, and the rest room $259m^2$. Then, 93.3% of the bed room had the doorsill. Also, 97.2% of the surveyed houses had retrievable space. The forms of the living room door were a hinged door(55.7%) and a sliding door(44.3%). The 43.4% of the finished material of the living room was wood which was highest. The cooking table forms of kitchen were mainly "ㄱ"-shaped(50.0%) and "ㅡ"-shaped(48.0%), and their average height was 815mm. The fuel used for kitchen was mainly the gas which accounted for 93.4%, but 95.3% of houses had no gas-warning devices. Most houses(77.4%) had an integrated type of bathroom and toilet. In addition, 63.2% houses had the stepped difference between the bathroom and other spaces. But they had no a sliding-prevention devices(not for 92.5%) or heating systems(not for 93.4%) in the bathroom.

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A comparative study on the architectural characterictics of the recently constructed houses in Kyongsangnam-do with standard housing plan (경남지역 신축 농가주택과 표준주택안의 건축적 특성에 관한 비교연구)

  • 박경옥
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 1992.11a
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    • pp.91-101
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    • 1992
  • The aim of this study is to offer the basic data concerning the architectural characteristics of the recently constructed farmhouses built by the residents’ self-planning after 1987, compared with the standard housing plan, for the desirable farmhouse planning. The 77 farmhouses, scattered in Milyang-gun, Yangsan-gun and Ulsan-gun near Ulsan city, were selected for the field measurement and the data, compared with the 14 standard housing plans, were analysed by the qualitative method. The farmhouses studied here showed average size of 25-pyongs(82.5m2) and took the flat slab type of roof by the masonry construction of the red blicks. The characteristics in planning were \circled1 the Anbang placed adjacent above the living room, \circled2 a pare of double-sliding doers for the Anbang. \circled3 a pare of double-sliding doors between the living room and the yard for the openness of the living room, \circled4 a door between the living room and the kitchen, \circled5 the multiuse-room by the kicthen for supplemental use, and \circled6 the storage space as attics secured indoor. The standard housing plans, different from these of the recently constructed farmhouses, placed emphasis on the separativeness of each space using the one hinged doors. The farmhouses built recently therefore were not affected by the characteristics of the standard housing plans.

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The Planning of the Storehouse affiliated with Rural Housing for the Elderly - Focused on the Cases in Chungcheongnam-do - (농촌 고령자주택의 창고용부속사 계획 - 충청남도 지역의 사례를 중심으로 -)

  • Lee, Youn-Jae
    • Korean Institute of Interior Design Journal
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    • v.26 no.1
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    • pp.114-123
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    • 2017
  • The objective of this paper is to investigate problems associated with the storehouse affiliated with rural housing for the elderly engaged in farming activities, and to suggest improvements with the examples of storehouse floor plans. The elderly in rural area still engage in farming even though they are suffering from aging problems. Therefore, the planning of storehouse which has relevance to agriculture is very important. The methods employed were a field survey and interviews with residents. 12 houses belonging to elderly people (60's and over) were selected by the convenient sampling in Cheonan, Chungcheongnam-do. The results are as follows. First, at least more than 3 storehouses have to be planned to store the goods separatedly according to their kinds and characteristics. Second, storehouses should be placed near or directly connected with the main house to support the accessibility of the elderly. Third, the open space has to be planned in front of the storehouse to park a truck for loading goods directly. Fourth, the storage equipments such as shelves should be planned inside of the storehouse for the space efficiency and user convenience. Fifth, the width of the door should be wide enough to carry agricultural products and goods. It is recommended to use double hinged doors or double pocket doors. Besides, the thresholds of the doors should be removed and, rather than using direct lighting system, it is better to use indirect lightings and task lightings together to minimize glare and to provide enough illumination.