• Title/Summary/Keyword: Mock-Up

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The effect of mock Kyoto Protocol class which uses role-playing and discussion in middle school gifted class on student's global scientific literacy (역할극과 토론을 통한 모의 교토의정서 수업이 중학교 영재학급 학생들의 지구적 소양에 미치는 영향)

  • Kang, Ji-Won;Han, Shin
    • Journal of the Korean Society of Earth Science Education
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    • v.3 no.3
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    • pp.228-238
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    • 2010
  • The purpose of this study is to examine the effects which applies teaching program that search solution to prevent global warming in middle school gifted class. This program of total 10 class was theoretical and experimental class and the students presented after collecting the synthetic data about climate-change and roleplayed what they debated to firm their country's opinion about Kyoto Protocol. Finally, students as policymaker made mock Kyoto Protocol by discussion. Impression papers and images about climate-changes was made by students in last class. In discussion of making up mock Kyoto Protocol, developed and developing nations had an argument about carbon dioxide emissions because of their economic benefits. In the course of allocating mutual $CO_2$ reduction, they needed yield and negotiation among nations. Although they mainly took passive position about $CO_2$ reduction, atmosphere that all the country make greater effort for the future global environment was formed. Like this, students had more concepts over climate change by making mock Kyoto Protocol. And they could equipped global scientific literacy and responsibility by participating in social decision making process of solving global environmental issues.

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BIPV System Design to Enhance Electric Power Generation by Building up a Demonstration Mock-up and Analyzing Statistical Data (실증 목업의 구축 및 데이터의 통계적 분석을 통한 건물일체형 태양광 발전시스템의 전력발전 향상 설계)

  • Lee, Seung-Joon;Lee, Jae-Chon
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.6
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    • pp.587-599
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    • 2018
  • In building-integrated photovoltaic (BIPV) systems, power generation functions are integrated into building functions by installing solar modules in combination with building materials. While this integration appears to be attractive, a design method is needed to achieve maximum power generation. Previously, the influence of the design elements on power generation was analyzed by computer simulations and demonstration tools. On the other hand, problems remain due to the inaccuracy of power generation analysis and relationship analysis, and limited demonstration. To solve this problem, this paper proposed the use of an extended demonstration mock-up. The mock-up was designed and constructed by implementing the design elements of the module types, installation angles, and direction. The actual operation data for one year were analyzed to evaluate the effects of the design elements on power generation. These results can be used to determine the feasibility of future BIPV systems and the optimal selection of system design elements.

A Study on the Technology Applying the Acoustic Wave Measurement to Diagnosing Particles in 800kV GIS (800kV GIS 이물진단을 위한 초음파 측정 적용기술연구)

  • Kim, K.H.;Choi, J.G.;Kim, M.K.;Sun, J.H.;Kim, I.S.;Yoon, J.Y.
    • Proceedings of the KIEE Conference
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    • 2001.11a
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    • pp.189-191
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    • 2001
  • This paper described the outputs of acoustic sensors due to the vibration of particles in the mock up GIS. We used the two type of acoustic sensors which had 150kHz resonant frequency and 60kHz resonant frequency respectively. In the experiment of the mock up GIS we paid attention to the relationship between applied voltages and sensor outputs due to particles. In this results fall down voltages depended on the material and length of particles but lift off voltages depended on the materials of particles. And the sensors outputs were increased with applied voltages in the same particle.

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Mix Design of Exposed Concrete Wall using Self Compacting Concrete (노출 구조물 벽체에 적용하기 위한 무다짐 콘크리트의 최적배합설계)

  • 손유신;이승훈;김규동;김한준
    • Proceedings of the Korea Concrete Institute Conference
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    • 2002.10a
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    • pp.555-560
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    • 2002
  • The structure of Chosun-ilbo Boopyung factory was desined as exposed concrete. The self compacting concrete(non-vibrating concrete) must be applied to this case because the exposed concrete wall is very thin(200mm) and high(6m), Laboratory tests and semi mock-up test were performed for optimum mix design of the self compacting concrete. As a result, the optimum mixes were observed at the 3-component types(ope, fly-ash, slag powder) that Vp$\geq$0.175, Vw/Vp$\geq$0.95, W=170~175$kgf/m^3$ and B=500~540$kgf/m^3$ Based on this result. we make plan that the pilot productions of batcher plant, the full-scale mock up tests and site application.

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Developing the Light-weight PV Blind System and the Shading Analysis by the Control Conditions (경량 태양광발전 블라인드 개발 및 제어조건에 따른 음영분석)

  • Chung, Yu-Gun
    • KIEAE Journal
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    • v.15 no.1
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    • pp.83-88
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    • 2015
  • This study aims to develope the light-weight PV blinds with windows and to investigate the shading analysis by the control conditions. For the study, the polycarbonate characteristics and coating methods are analyzed and the PV blind design for a small office is suggested. Also, the mock-up model of a suggesting system was made. The field tests were controled based on a solar altitude under clear sky conditions. As results, it is necessary to use a polycarbonate instead of a tempered glass for a light-weight PV. The shading effects of blind systems are high in slat angle $30^{\circ}$ and low in $0^{\circ}$. Also, the shading ratio is more affected by solar latitude than solar altitude. The shading change rate is relevantly constant on the solar altitude.

$SnO_2$양극을 이용한 전기화학적 금속전환 mock-up(5 kg $U_3O_8$/batch) 시험

  • 오승철;홍순석;이원경;허진목;서중석;박성원
    • Proceedings of the Korean Radioactive Waste Society Conference
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    • 2004.06a
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    • pp.352-352
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    • 2004
  • 산화물 형태의 사용후핵연료를 고온 용융염계에서 금속 형태로 전환하는 전기화학적 금속전환 공정 개발의 일환으로 $U_3O_8$ 분말로 충전된 다공성 마그네시아 용기 및 스테인레스강 고체전극으로 구성된 일체형 음극과 $SnO_2$ 재질의 양극을 사용하여 5kg $U_3O_8$/batch 규모의 mock-up 시험을 수행하였다. 백금 재질의 양극을 사용하였을 때 99% 이상의 금속전환율을 보인 동일한 전하량을 공급하고 실험을 중단한 결과 X-선 회절분석(XRD) 및 열중량 분석(TG)으로부터 스테인레스강 고체전극 부분에서는 거의 금속으로 전환되었으나 다공성 마그네시아 용기 부분에서는 비교적 금속전환율이 낮은 경향을 나타내었다.(중략)

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Mockup Test of the High Volume Blast Furnace Slag Concrete Using Recycled Aggregates and Incinerator Ash (순환골재 및 소각장 애시를 자극제로 사용한 고로슬래그 미분말 다량치환 콘크리트의 Mock-up 성능평가)

  • Kim, Young-Hee;Kwak, Yong-Jin;Kim, Jun-Ho;Lee, Hyang-Jae;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.11a
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    • pp.19-21
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    • 2012
  • This paper was to investigate the effect of incinerator ash on engineering properties of the high volume blast furnace slag concrete through Mock-up test. Test results revealed that the use of recycled aggregates resulted in increase of slump compared with the OPC concrete. But, the use of recycled aggregates did not affect the results of air contents and chloride contents. The use of recycled aggregates showed shortening of setting time of high volume blast furnace slag concrete. When the recycled aggregate was used, delay in strength development at early age happened with high volume blast furnace slag concrete compared with that of OPC concrete.

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Temperature History of Concrete exposed to Extremely Cold Weather with the Variation of Capacity of Heating Coil (열선 전력 용량에 따른 극한온도 조건에서의 콘크리트 온도이력 특성)

  • Jung, Eun-Bong;Jung, Sang-Hyeon;Ahn, Sang-Ku;Ko, Gyeong-Taek;Han, Min-Cheol;Han, Cheon-Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2012.11a
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    • pp.51-53
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    • 2012
  • This paper is to report the results of mock-up test for concrete during severe cold weather. The temperature is fixed at -20℃. The mock-up specimens were fabricated simulating slab, wall and column. Heating coil with different heat capacity with 5 W and 15 W were embedded at slab specimen. Test results revealed that at -20℃, temperature dropped below 0℃ since around 70 hours. It takes 7 days to gain 45°D·D of maturity for avoiding frost damage at early age.

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