• Title/Summary/Keyword: saving

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A Study on Refrigeration warehouse operation for Energy saving technique (에너지 절감 기법을 적용한 냉동 냉장 창고 운영에 관한 연구)

  • Kim, Dae-Gyun;Kwon, Jung-Dong;Hahm, Nyun-Gun;Lee, Sang-Chip;Kim, Ik-Hwan;Lee, Seung-Hwan;Lee, Hoon-Goo;Han, Kyung-Hee
    • Proceedings of the KIPE Conference
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    • 2005.07a
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    • pp.182-184
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    • 2005
  • The human beings have Increased concern about Energy saving and alternative energy. The power demand has increased the growth of industry and the improvement of life We have to explore alternate energy sources and utilize effectively domestic resources. The lighting equipments developed Energy saving by using an electric ballast. The load installation should be promoted to rational power management, according to the network, intelligent, and high-function. Therefore, this paper has studied the method of energy saving and consulting.

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A Study on Measuring Method in Technical Progress (기술진보 측정방법에 관한 일고안)

  • 박일근
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.3 no.3
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    • pp.59-66
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    • 1980
  • The purpose of this paper to study on measuring method in technical progress. Technology is combination method of raw material and capital, land, labour. The first step to technical Progress is COBB-DOUGLAS production function, so technical progresses are important role in economic growth and development. General production function from Y=f(K, L, T) and COBB-DOUGLAS production function Y=${AK^I}{L^b}$ is first condition. Technical progress is saving of production factor In capital saving, labour saving, neutral saving. Marred Hicks Robinson has Insist on technical progress by each view of production factor, but, what is most excellent measuring method of technical progress\ulcorner I : productivity index method. II : Gross Production function method. Productivity method used in every products level in weight values, gross method function method used in production factor attributed to products. Above two measuring method has delicate problem in each input factor, substitution relation and production factor simultaneously linked each others This basic problem based on technical progress is not solubable in this time.

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The implement of energy saving illuminator with a function of crime and fire prevention (방범·방재 기능을 갖는 에너지 절약형 조명기기 구현)

  • Han, Young-Oh
    • The Journal of the Korea institute of electronic communication sciences
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    • v.5 no.3
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    • pp.339-343
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    • 2010
  • In this paper, the energy saving illuminator with a function of crime and fire prevention is developed. This illuminator is communicated with a superintendent's office by wireless communication and the informations being archived by the illuminator are transmitted to a superintendent's office. If this illuminator is established with only one in a lecture room or a office room, a wireless network with saving a energy and preventing crimes and fires can be constructed.

Techniques of Management and Energy saving by using Power installation (전력 사용설비의 에너지 절감방안 및 관리를 위한 진단기법)

  • Lee, S.C.;Jeon, K.Y.;Harm, N.G.;Kim, D.G.;Kang, S.W.;Oh, B.H.;Lee, H.G.;Han, K.H.
    • Proceedings of the KIEE Conference
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    • 2003.07b
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    • pp.1102-1104
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    • 2003
  • The human beings have increased concern about energy saving and alternative energy. The Power demand has increased the growth of industry and the improvement of lift. We have to explore alternate energy sources and utilize effectively domestic resources. The lighting equipments developed energy saving by using an electric ballast. The load installation should be promoted to rational power management according to the network, intelligent and high-function. Therefore, this paper has studied the method of energy saving and consulting.

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An Development of Landscape Lighting Power Control System with Solar Cell Generator Equipment for Energy Saving (에너지절감을 위한 태양광발전설비 연계형 경관조명 전력제어시스템의 개발)

  • Kim, Dong-Wan;Park, Sung-Won
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.59 no.4
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    • pp.364-371
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    • 2010
  • In this paper, we propose the landscape lighting power control system with solar sell generator equipment for energy saving, and also which is included the landscape lighting power transformation device. The power transformation device can check inverse current in the power of the solar cell module and control the power of the battery. And we present the design of landscape lighting power control system. The power control system uses microprocessor with charging system and power transformation device. And also it can control the power of loads under consideration intensity of illumination. The landscape lighting loads are composed of LED(Lighting Emitting Diode) and HID(High Intensity Discharge)lamps. To evaluate property, we installed the solar cell array which generate three kilo watt power. Experimental results show that the proposed system can have stability and energy saving on the mixed configuration of electric loads with DC and AC lamps.

A Study on Some Problems and Proposals of the Korea Life Saving and Rescue Act(Amendment, 1994) (수난구호법의 개정에 관한 비교법적 고찰)

  • 강동수
    • Journal of the Korean Institute of Navigation
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    • v.18 no.4
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    • pp.119-136
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    • 1994
  • In Korea, the System of search and rescue in water have came into force on the basis of the Korea Life Saving and Rescue Act. 1961. But It's a premodern administration law which is not fit for an international system of the search and rescue and become disconnected with reality in Korea. Recently the marine casualties occur frequently in Korea coastal area, therefore, we need to amend the 1961 Act. The amendment which is carried out by the Korea Maritime Police Agency is a provision to receive International convention(SAR, 1979). The amendment of this Act will give a epoch-making change to Korean policy of the life-saving and rescue, security to marine safety and contribution to National positon on system of "Search and Rescue". In this thesis, I propose a development scheme to be conductive to original task on "Search and Rescue" of International Convention in Korea Life Saving and Rescue Act(Amendment, 1994).t(Amendment, 1994).

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A Study on the Optimum Design for Energy Saving of an Auto Transmission Part (자동변속기용 부품의 에너지 절감을 위한 최적 설계 연구)

  • Lee, H.S.;Kim, T.H.;Kim, S.H.;Hong, E.C.;Lee, J.H.
    • Transactions of Materials Processing
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    • v.24 no.3
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    • pp.181-186
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    • 2015
  • Many in the industrial world that consume high amounts of energy are trying to reduce energy when manufacturing their products. Energy saving during manufacturing is a cost reduction. Reduced cost is necessary for profit improvement. The Piston Under Drive Brake used in the current study is an automotive transmission part. The original machining after hot forging was changed to machining after cold forging of a plate in order to save energy and cost. Two extrusion shapes along the outer diameter caused decreased tool life because of the interrupted cut during turning. Therefore, a thickness reduction of two extrusion areas in the outer diameter was needed. The current study suggests an effective way to reduce the thickness of interrupted cut by using progressive blanking.

A Study on the Necessity for Energy Saving Techniques and Improvement of Dependability of Clean room (클린룸의 에너지 절약 기술 개발과 신뢰성 향상의 필요성에 관한 연구)

  • Kim, Jong-Gurl;Kim, Hyung-Man;Kim, Young-Sub;Kim, Jae-Kyu;Choi, Sung-Won;Cho, Gook-Hyung
    • Proceedings of the Safety Management and Science Conference
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    • 2008.11a
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    • pp.641-647
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    • 2008
  • Since korea must get 5.2% reduction of green gas emission and insecurity of economic impact is on the increase due to unstable oil market, the demands of energy saving techniques are increasing. In this paper, we investigate necessity of development of enormous energy used cleanroom energy saving techniques furthermore we also investigate the adoption of dependability management system to develop the energy saving cleanroom development process.

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Independent Metering Valve: A Review of Advances in Hydraulic Machinery

  • Nguyen, Thanh Ha;Do, Tri Cuong;Ahn, Kyoung Kwan
    • Journal of Drive and Control
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    • v.17 no.4
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    • pp.54-71
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    • 2020
  • In light of the environmental challenges, energy-saving strategies are currently under investigation in the construction industry. This paper focuses on the energy-saving method used in the hydraulic system based on independent metering (IM) technologies, which can overcome the lost energy at the main control valve of the conventional electrohydraulic servo system. By scientifically arranging the proportional valves, the IM system can individually control the flow rate of the inlet and the outlet ports of the actuators. In addition, the IMV system can be used to effectively regenerate energy under different operating modes, thereby saving more energy than conventional hydraulic systems. Therefore, the IMV system has a great potential to improve the energy efficiency of hydraulic machinery. The overall IMV system, including the configuration, proportional valve, operation mode, and the control strategy is introduced via state-of-the-art hydraulic technologies. Finally, the challenges of IM systems are discussed to provide researchers with directions for future development.

The computer power-saving system using DHCP (DHCP를 이용한 컴퓨터 절전 시스템)

  • Kim, Hong-Yoon
    • Journal of Korea Society of Industrial Information Systems
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    • v.14 no.5
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    • pp.75-82
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    • 2009
  • It is possible that gain good effect for saving electric charges by power-saving education to organizer, instead of buying new energy saving computer in the company, school and public organization. But this kind of education needs time very much. And power management system for controling whole computer of organizer is released, but it is hard to set up. In this paper we prevent computers which do not have power shutdown software, from obtaining IP address by DHCP. So we induce organizer to setup power shutdown software.