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[기계전공대학원세미나] (12월 11일) Energy, Machine, and Climate
12월 11일 세미나를 마지막으로 2009-2학기 기계전공대학원세미나는 종강입니다.
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1. 제 목 : Energy, Machine, and Climate
2. 일 시 : 2009년 12월 11일 (금) 16:30-17:30
3. 연 사 : Prof. Kyeongjae Cho (University of Texas Dallas)
4. 장 소 : 301동 105호 강의실
5. 연사약력 :
Prof. Kyeongjae Cho is an associate professor of materials science & engineering and physics at the University of Texas at Dallas. He is also a WCU visiting professor at Seoul National University. Prior to joining UT Dallas in 2006 he was an assistant professor of mechanical engineering at Stanford University with a joint appointment in materials science and engineering (1997-2006). Dr. Cho has received his Ph.D. in Physics at MIT in 1994, and he has worked as research associates at MIT and Harvard University during 1994-1997. He is a co-founder and member of the advisory board of Nanostellar Inc., which specializes in developing nanoscaled catalytic materials for diesel emissions control. He has published 107 archival journal papers, and 24 conference proceedings papers. He also holds five U.S. patents. He has supervised 16 Ph.D. students and 15 postdoctoral associates and received two dozen research funding awards.
6. 내용요약 :
Global warming is a major international issue involving all modern human societies utilizing industrial machines which consume fossil fuels as energy source. Even though there has been a long debate on how much human activities are contributing to the global warming, there is a major consensus on the global warming trend of the world climate. In this talk, we will take a look into the current energy and climate problems from a historical perspective: history of the earth and the history of human society. It is well established that the life on earth has transformed the global atmosphere over billion years of time scale by reducing CO2 and producing O2.Human society has started to change the global atmosphere from 10,000 years ago by starting large scale agriculture and rapid expansion of human population. However, the human agricultural activity has been slowly influencing the climate at a small scale until the beginning of the industrial revolution in the late 18th century. During the 19th century, rapid expansion of steam engines which convert the chemical energy in coal into mechanical energy has started to produce increasingly large amount of CO2. It is estimated that about 220 billion tons of CO2 has been added to the atmosphere by consuming fossil fuels since 1800. This addition corresponds to the current CO2 concentration of 380ppm compared to 280ppm in 1800. A complimentary part of the climate problem is the energy supply problem represented by the depletion of oil and gas described by Hubbert’s curve. It is shown that the current reserve of oil and gas will be used up by 2050 and that coal may sustain the supply through the end of the 21st century. Such fossil fuel supply projection suggests that the modern industrial societies founded on the energy converting machines developed during the industrial revolution will face a fundamental change from the current fossil fuel industry developed during the last two centuries. The current century will be a time of transition in every aspect of human society, and the energy, machine and climate issues will closely interact with each other to shape the future direction of human society. Global scale engineering of energy production, energy conversion, and climate control will become a necessary requirement to address the global scale energy and climate problems. It is very likely that the current generation of mechanical engineers will develop the solutions to these daunting global problems. The future of human society depends on the young engineers who will complete the historical cycle of science and engineering of energy converting machines started by Dennis Pipin (1695), Thomas Newcomen (1712) and James Watt (1776).
7. 문 의 : 기계항공공학부 박종우 교수(☏ 880-7133)
========================================================================================
1. 제 목 : Energy, Machine, and Climate
2. 일 시 : 2009년 12월 11일 (금) 16:30-17:30
3. 연 사 : Prof. Kyeongjae Cho (University of Texas Dallas)
4. 장 소 : 301동 105호 강의실
5. 연사약력 :
Prof. Kyeongjae Cho is an associate professor of materials science & engineering and physics at the University of Texas at Dallas. He is also a WCU visiting professor at Seoul National University. Prior to joining UT Dallas in 2006 he was an assistant professor of mechanical engineering at Stanford University with a joint appointment in materials science and engineering (1997-2006). Dr. Cho has received his Ph.D. in Physics at MIT in 1994, and he has worked as research associates at MIT and Harvard University during 1994-1997. He is a co-founder and member of the advisory board of Nanostellar Inc., which specializes in developing nanoscaled catalytic materials for diesel emissions control. He has published 107 archival journal papers, and 24 conference proceedings papers. He also holds five U.S. patents. He has supervised 16 Ph.D. students and 15 postdoctoral associates and received two dozen research funding awards.
6. 내용요약 :
Global warming is a major international issue involving all modern human societies utilizing industrial machines which consume fossil fuels as energy source. Even though there has been a long debate on how much human activities are contributing to the global warming, there is a major consensus on the global warming trend of the world climate. In this talk, we will take a look into the current energy and climate problems from a historical perspective: history of the earth and the history of human society. It is well established that the life on earth has transformed the global atmosphere over billion years of time scale by reducing CO2 and producing O2.Human society has started to change the global atmosphere from 10,000 years ago by starting large scale agriculture and rapid expansion of human population. However, the human agricultural activity has been slowly influencing the climate at a small scale until the beginning of the industrial revolution in the late 18th century. During the 19th century, rapid expansion of steam engines which convert the chemical energy in coal into mechanical energy has started to produce increasingly large amount of CO2. It is estimated that about 220 billion tons of CO2 has been added to the atmosphere by consuming fossil fuels since 1800. This addition corresponds to the current CO2 concentration of 380ppm compared to 280ppm in 1800. A complimentary part of the climate problem is the energy supply problem represented by the depletion of oil and gas described by Hubbert’s curve. It is shown that the current reserve of oil and gas will be used up by 2050 and that coal may sustain the supply through the end of the 21st century. Such fossil fuel supply projection suggests that the modern industrial societies founded on the energy converting machines developed during the industrial revolution will face a fundamental change from the current fossil fuel industry developed during the last two centuries. The current century will be a time of transition in every aspect of human society, and the energy, machine and climate issues will closely interact with each other to shape the future direction of human society. Global scale engineering of energy production, energy conversion, and climate control will become a necessary requirement to address the global scale energy and climate problems. It is very likely that the current generation of mechanical engineers will develop the solutions to these daunting global problems. The future of human society depends on the young engineers who will complete the historical cycle of science and engineering of energy converting machines started by Dennis Pipin (1695), Thomas Newcomen (1712) and James Watt (1776).
7. 문 의 : 기계항공공학부 박종우 교수(☏ 880-7133)