• Title/Summary/Keyword: running room

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A Study on the Proper Location of Ventilation Outlets and Inlets in the Germ Free Pigs' Room (무균돈사내 급배기구의 적정위치설정에 관한 연구)

  • Kwon, Soonjung;Son, Deok-Young;Choi, Yoon-Ho
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.14 no.4
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    • pp.39-46
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    • 2008
  • Construction and operation of Germ Free Pigs' facilities are very expensive because pigs' rooms and other major rooms of the facility require germfree environments. Especially, running the HVAC system of aseptic facilities requires a lot of expenses. However, proper location and efficient shape of outlets/inlets for the ventilation of the room can reduce the excessive running cost. In order to do that, this study proposes alternative location and shape of ventilation outlets/inlets to the existing design pattern in germfree pigs' room. The design condition of this study is the maintenance of adequate temperature(24$^{\circ}C$, $NH_3$concentration level(below 1.5 ppm), and air stream speed(below .25m/sec) in the pigs' room for the summer and the winter together. As the Software Program, FLUENT(Ver. 6.2) has been used for the analysis of proposed ventilation patterns. In conclusion, wall inlets and ceiling inlet/outlet are advisable in summer, wall inlets and ceiling outlets is advisable in winter. As far as the shape is concerned, diffuser type for the ceiling outlet is desirable.

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Monitoring and Controlling of Systems in PC room using SNMP (SNMP를 이용한 PC 실습실 시스템의 모니터링과 제어)

  • Ahn, Seong-Jin;Chung, Jin-Wook
    • The Journal of Korean Association of Computer Education
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    • v.3 no.1
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    • pp.109-115
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    • 2000
  • In this paper, we have designed the management System to monitor and control computers running on MS Windows in the PC room using SNMP. The proposed system has controlling capability to control the status of PC and monitoring functions to have real-time monitoring and process control. In the controlling system, it supports update and setting of the configuration information of PC and backup/restore the information when it happens to be some faults. In the monitoring system, it has monitoring the PC of students, controlling the process on PC, and invoking a new job. This system contributes to enhance the effectiveness of teacher's educational activities in PC room by controlling and monitoring the program running on student's computer.

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A Study on the Individual Room Control of Radiant Floor Heating System in Apartment Buildings (공동주택에서 바닥복사 난방시스템의 실별 제어에 관한 연구)

  • 김오봉;이미경;김광우;여명석
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.16 no.5
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    • pp.421-429
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    • 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.

콘덴서 런 단상유도전동기의 설계적 고찰

  • 원종수
    • 전기의세계
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    • v.31 no.2
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    • pp.132-140
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    • 1982
  • Designing the capacitor-run motor for balanced operation is accompanied with the excessive capacitor value and low capacitor terminal voltage of condenser. As a solution for this problems, It was reported the design by equal volt-ampere method. The running characteristics of capacitor-run motor by this method due to the balancing point selection, however, has a room to be studied further. This paper deals with the determination of the winding ratio and capacitor value of a permarient-split capacitor motor by balanced operation and equal volt-ampere method at the different load points. The analysis of the running characteristics of a motor and its designing method also presented for both cases. It concluded that the running characteristics due to the equal volt-ampere operation are very close to the balanced operation.

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An Experimental Study on the Furniture Choice and Arrangement Using Scale Down Models according to the Size of Space (축소모형을 이용한 평형별 가구선택과 배치에 대한 실험적 연구)

  • 임소연;안옥희
    • Journal of the Korean housing association
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    • v.6 no.1
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    • pp.39-50
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    • 1995
  • The Plan for effective usage of living room must be suggested because families primarily use living room for public space. And from the viewpoint of function and decoration. the kind of furniture. furniture occupancy quantity. and the arrangement of furniture have much affect on using a dwelling space. So this study will suggest basic data for a good furniture usage through experiment using scale down models. To analyze the data. frequency and percentage were used by running SPSS $PC^+$ program. The major results are as follows. In an experiment using living room and furniture models(Scale 1/20). according to the size of space. TV sizes and furniture occupancy quantity were in proportion to size and space of the living room. Also they chose various types of tea-table and side-tables. In small spaces. subjects chose simple arrangement types (no sofa or I type sofa and cabinet). but in large spaces. they chose \ulcorner type or \ulcorner type sofa and cabinet.

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A Study on the Reaching Time of Setting Temperature with Ventilation Air (급기환기량에 따른 공조기의 설정온도 도달특성 분석 연구)

  • Kang Tae-Wook
    • Journal of Advanced Marine Engineering and Technology
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    • v.30 no.1
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    • pp.50-57
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    • 2006
  • This study describes to analyze the cooling load characteristics for a room air conditioner as a function of supply ventilation air when an air conditioner is running An experimental apparatus consists of a test room, a room air conditioner, a humidifier, an electrical heater a supply fan and a controller The reaching time to the inside setting temperature of the room air conditioner with is evaluated theoretically and experimentally in a conditioned space cooling loads such as supply ventilation air, lighting, occupancy and infiltration. In the conditions of cooling loads for the supply ventilation air of 9.5 L/s(0.98 ACH). lights. one Person, and infiltration, the reaching time to the inside setting temperature ($27\;^{\circ}C$ dry-bulb) increases up to $35\%$ more than for no supply ventilation air condition. Theoretical modelling of the reaching time shows good agreement with experimental results.

Semiquantitative Dynamic Headspace GC-MS Analysis for Organic Compounds Outgassed from FAB Materials of Air Shower (에어샤워부품의 용출 가스 중 유기화합물의 반 정량적 Headspace GC-MS 분석)

  • Park, Hyun-Mee;Baig, Soung-Woo;Kim, Young-Man;Lee, Kang-Bong
    • Analytical Science and Technology
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    • v.13 no.4
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    • pp.412-422
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    • 2000
  • The polymeric FAB materials of air shower used in clean room of wafer industry have been outgassed with the dynamic headspace (ca.$100^{\circ}C$) for half an hour, and analyzed using GC-MS. The air in the clean room running air shower was sampled using sorbent tube method, and the organic compounds adsorbed in the sorbent tube were extracted using Soxhlet extraction method, and analyzed using GC-MS. The analytical results from FAB materials of air shower (electric over current relay, acryl plate. polycarbonate window, filter, fan housing, steel galvanized cold plate and canvas buffer) indicated that most of chemicals were originated from polymer fragments of FAB materials. Their analytical results have been compared with those from the air of clean room running air shower. These comparative results could lead to identify whether the sources of trace organic contaminants in clean room air are originated from the polymeric FAB material of air shower.

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A Survey on the Actual Wearing Condition of Clean Room Wears (Clean Room Wear의 착용실태에 관한연구)

  • 김경화
    • Journal of the Korean Society of Costume
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    • v.48
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    • pp.117-132
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    • 1999
  • This study is focused on the questionaries regarding the physiological comfort and body fitness and freedom of movement for clean room smock and intended to present the basic information in designing more comfortable clean room wear through seizing the discomfort of wearet. The study is designed to survey and analyze the actual wearing condition and its problem applied to 400 workers assigned with two semiconductors manufacturing plants. The result of survey are as follows. 1. Clean room workers bras panties running shirts and 내찬 the as basic underwear since they absorb sweat protect their bodies and make them feel safe and comfortable throughtout the whole year. 2. With regard to body fitness most of the subject assessed it to be suitable but the girth of neck waist and hood is founded to be tight in many cases. 3. Most important selecting criteria of clean room smocks are adaptability of movement body fitness and carrying-ability. Most of repondents prefer side zipper and rib-knitted fabric as the fastening system. 4. As for freedom of movement it is disclosed that the subjects showed more or less of their complaints against its wearing easiness for parts of waist neck armpit and slacks adaptability and adaptability of movement.

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Feasibility Study on Installation of Individual Room Control Ventilation in Apartment House (공동주택의 실별 제어환기 도입 타당성 분석)

  • Kim, Jung-Yup;Shin, Hyun-Joon;Kwon, Yong-Il;Yun, Young-Woo;Cho, Chun-Sik
    • Proceedings of the SAREK Conference
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    • 2009.06a
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    • pp.502-507
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    • 2009
  • Trend of mechanical ventilation system applied to apartment house is introduced and feasibility study on installation of the individual room control ventilation as energy-saving method is carried out through field experiment. While initial cost of installation for the individual room control ventilation increases, the running cost is lower than the individual household control ventilation due to automatic flow rate control and reduction of fan power, and the management cost also decreases due to extension of use life of components. As the results of field experiment on $115m^2$-type apartment house, the individual room control ventilation could save the amount of 1,459.5Wh/day when compared with the individual room control ventilation

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An analysis study of the guest room design characteristics in the themed hotel - An Analysis Study Focusing on Domestic and Foreign Themed Hotels from Year 2005 until Current - (테마호텔의 객실 디자인 특성에 관한 연구 - 2005년 이후 국내외 테마호텔 사례 분석을 중심으로 -)

  • Xiao, Qi;Hong, Kwan-Seon
    • Korean Institute of Interior Design Journal
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    • v.24 no.2
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    • pp.3-10
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    • 2015
  • Themed hotels is a new form of hotel development that is rising at home and abroad. In the hospitality industry has a leading position. And The design of the themed hotel is different from tradition as hotel as it more innovative. People are attracted to themed hotel for its' unique interior design especially the guest room. For the sake of promoting the themed hotel's running better, guest room design characteristics can't be neglected. Therefore, this paper will analyze the characteristics of the guest's room design in the themed hotel. This paper initially narrates the concept, features and current situation, and then makes an analysis about the types of theme hotels in combination with examples. Secondly, through the thesis analysis of prior research, key words, hybridity, interactions, symbolic, diversity and regionalism about features of rooms in theme hotel are given. Finally, examples about theme hotels at home and abroad opened after 2005 are taken as the center, through which features of rooms in each theme hotel are analyzed. By the analysis of conclusion, basic current situation of rooms in theme hotels is given. The findings of this research will provide a reference to design the guest's room of the themed hotel.