• Title, Summary, Keyword: 에어컨디셔너

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Design of Air-Conditioner Frame Structure Using TRIZ Based Contradiction Analysis (트리즈를 이용한 에어컨디셔너 프레임구조 설계)

  • Choi, Ha-Young;Jeong, Yiemoon;Lee, Jongsoo
    • Journal of The Korean Society of Manufacturing Technology Engineers
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    • v.21 no.6
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    • pp.961-967
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    • 2012
  • The metal is frequently used in the air-conditioner frame, which must have the durability from the various external environments, but has difficulties in being manufactured for many complex shapes. On the other hand, the plastic, used as a material of injection molding, enables the realization of various shapes and the mass-production of complex ones and leads low production cost. As the air-conditioner frame becomes increasingly complex and detailed, the plastic material is highlighted as an alternative for the frame. But the product molded by plastic with a complex shape might have a noise problem. Therefore this study attempts to design the product through TRIZ in order to reduce the noise of the air-conditioner with the frame of plastic material.

A Study on analyze of energy saving rate by retrofitting multi air-conditioner from conventional type to high efficient type using Energyplus (Energyplus를 이용한 고효율 멀티에어컨디셔너의 에너지절감 효과 분석)

  • Seo, Jeongsik;Kim, Ook Joong;Woo, Juntae;Choi, Younsung;Jeon, Jongog
    • 한국신재생에너지학회:학술대회논문집
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    • pp.165.2-165.2
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    • 2010
  • The objective of this study is to analyze the energy saving rate by retrofitting multi air conditioner from conventional type to high efficient type using Energyplus 4.0 which was developed for simulating a building energy by D.O.E. Generally, Multi air conditioner system was installed for both the cooling and the heating in a building. However, it was difficult to estimate the energy saving rate in the case of retrofitting multi air conditioner from conventional type to high efficient type. In the present study, annual energy consumptions of them were evaluated for same building and climate condition.

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Evaluation of Thermal Comfort and Energy Efficiency According to Indoor-Unit Types of Room Air-Conditioner in Housing Space (주거 공간에서의 룸 에어컨디셔너 실내기 유형에 따른 온열쾌적성 및 에너지성능 평가)

  • Seok, Ho-Tae;Kim, Dong-Woo;Yang, Jeong-Hoon
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.19-29
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    • 2009
  • The purpose of this study is to evaluate the air diffusion performance of a range of indoor units for room airconditioners; the wall-mounted type, floor-standing type, and ceiling-mounted type. These types of units, which have been widely used in housing spaces, will be studied with respect to thermal comfort and the energy performance using CFD analysis. In this study, current air conditioning status and related problems in housing spaces are examined, and a CFD analysis is performed in order to compare and analyze the thermal comfort and energy efficiency across each type of indoor-unit using the PMV, ADPI, EUC and FCEI indexes. The analysis results collectively considering thermal comfort and energy performance indicated that the ceiling-mounted type 4-way indoor unit showed the best diffusion performance in terms of thermal comfort, and had the second best diffusion performance in terms of energy performance after the wall-mounted type under certain conditions.

환경정화사업의 일환으로 가전제품 포장재가 경감된다

  • 한국전기제품안전진흥회
    • Product Safety
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    • pp.72-75
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    • 1995
  • 현대산업사회의 발전으로 널리 보급된 가전제품중 TV, 냉장고, 세탁기, 전자레인지, 에어컨디셔너, 퍼스날 컴퓨터 등 6개품목의 합성수지 재질 포장재에 대해서는 환경정화사업의 일환으로 '96. 1. 1부터 년차별 감량화 목표율에 따라 당해연도 감량화 자체 계획 및 실적을 작성하여 환경부장관과 통상산업부 장관에게 각각 제출하여야 한다. 다만 당해연도 자체 계획서 및 전년도 실적을 제출함에 있어 제조$\cdot$수입을 함께하는 경우는 한국

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Real-Time Monitoring and Control System of Server Room based on IoT (IoT를 기반으로 하는 서버 룸 실시간 모니터링 및 제어 시스템)

  • Park, Jung Kyu;Kim, Jaeho
    • Journal of The Korea Internet of Things Society
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    • v.6 no.3
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    • pp.7-13
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    • 2020
  • In this paper, we propose a system that monitors and controls the environment of a server room in real-time based on IoT. Recently, as the information society has been maximized, the damage has been significant when the computer system is down. In particular, damage such as a fire in the server room leads to loss of data and data recovery becomes impossible. In order to reduce such damage, a node capable of real-time monitoring using an IoT system was proposed. In addition, we proposed a coordinator node that can collect and monitor node information. In order to verify that the proposed system works, we have developed software that can control node monitoring and air conditioning. As a result of the experiment, we confirmed that the proposed system detects fire and controls the air conditioner.

An Expert System for Air-conditioner Design (냉방기 설계를 위한 전문가시스템)

  • 김상호;명세현;한순홍
    • Journal of Intelligence and Information Systems
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    • v.3 no.1
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    • pp.83-99
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    • 1997
  • 냉방기인 에어컨디셔너에 대해 기존의 설계방법과 지식, 그리고 경험을 체계화하고, 설계 제한 조건에 따른 최적설계 기법을 도입한 전문가시스템을 구현한다면, 적은 데이터 입력으로 주어진 설계 조건에서의 최적 해를 시간 낭비 없이 얻을수 있고, 설계자 간의 설게 능력 차이에 의한 상이한 결과도 해소할 수 있으므로 경제적인 설계가 중심에서 전문가시스템 중심으로 축적되는 것이 가능해져, 설계자의 이동에 따른 설계 지식의 누수를 방지할 수 있고, 설계 지식이 별도의 지식베이스에 구축되어 있으므로 보수 관리도 용이하게 되어 설계 지식의 지속적인 발전과 집적을 도모할 수 있다. 현장에서 사용중인 에어컨 설계용 소프트웨어를 기초로 실제 실무에서 접할 수 있는 설계 제약 조건에 대해서, 최적설계 기법의 적용과 지식베이스 구축을 통해 경제적인 설계가 가능한 설계 전문가시스템을 개발하였다.

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Design of Centrifugal Impeller for Passenger Car by Flow Field Analysis (유동장 해석을 통한 승용차 원심 회전차의 형상 설계)

  • Lee, Dong-Ryul
    • Journal of the Korean Society of Mechanical Technology
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    • v.13 no.3
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    • pp.49-55
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    • 2011
  • For the purpose of the enhancement of the air conditioner performance and fuel effciency, several cases of centrifugal impeller for passenger car air conditioner have been numerically analyzed by changing central angle of blades and length of outlet for shape optimization of the impeller. Commercial CFD program Fluent 6.3.26 has been used to compute velocity, temperature, pressure and turbulence intensity that can lead numerous results. The central angles of two blades and three cases of outlet length led 4~12% and 3.5~6.4% differences of velocity and flow rate, respectively. The velocity distribution near the blade surface was axisymmetric and had a maximum value of 22.19 m/s and velocity of the vertical direction of the impeller showed linear increase with horizontal direction. At case 3 of oultet length, there existed a a minimum pressure value of -133320 Pa.

Evaluation of Performance of a Residential Air-Conditioning System Using Microchannel and Fin-and-Tube Heat Exchanger (마이크로채널과 핀 튜브 열교환기를 적용한 가정용 에어컨디셔너의 성능 평가)

  • Yun, Rin
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.19 no.1
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    • pp.28-35
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    • 2007
  • In this study the seasonal performance of a residential air conditioning system having either a fin-and-tube condenser or a microchannel condenser is experimentally investigated. A commercially available 7 kW capacity residential air conditioning system having a fin-and-tube condenser served as the base system. The test results show that the system with a microchannel heat exchanger has a reduced refrigerant charge amount of 10%, the coefficient of performance is increased by 6% to 10%, and the SEER is increased by 7% as compared with those of the base system. Moreover, the condensing pressure of the system is decreased by 100 kPa and the pressure drop across the condenser is decreased by 84%. The microchannel heat exchanger enhances the SEER of the residential air conditioning system by providing better heat transfers at reduced pressure drops.

Performance and heat transfer of an air conditioning system filled with hydrocarbon refrigerants (탄화수소 냉매를 사용한 냉방시스템의 성능 및 열전달 특성)

  • Jang, Yeong-Su;Kim, Min-Su;No, Seung-Tak
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.21 no.5
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    • pp.713-723
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    • 1997
  • Performance and heat transfer characteristics of an air conditioning system filled with hydro- carbon refrigerants are experimentally investigated. Single component hydrocarbon refrigerants (propane, isobutane, butane and propylene) and binary mixtures of propane/isobutane and propane/butane are considered as working fluids in the air conditioning system. Performances of each refrigerant are obtained at several compressor speeds and temperature levels of secondary heat transfer fluids. The cooling capacity and the coefficient of performance are obtained as test results. Heat transfer data of selected refrigerants are achieved from overall conductance measurement. Average heat transfer coefficients at different mass fluxes are shown and they are also displayed for different heat capacities of the system. Experimental results show that some hydrocarbon refrigerants have better characteristics than R22.