课程名称︰能源工程 课程性质︰选修 课程教师︰王兴华、杨镜堂、马小康 开课学院：工学院 开课系所︰机械系 考试日期（年月日）︰100/01/10 考试时限（分钟）：09:10~12:00 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : 1. Wind Energy (15 points) Why are the technologies of wind-energy being developed worldwide in this century? Compare the advantages and disadvantages of on-shore and off-shore wind energy. 2. EV (15 points) Discuss SWOT (strength, weakness, opportunity, threat) of Taiwan's development on electric vehicles? 3. Nuclear Energy (15 points) Please list three advantages of nuclear energy for electricity supply in Taiwan. 4. LED (15 points) Please explain the emitting principle or the basic theory of light emitting diode (LED). 5. PV (15 points) What are (a) crystalline Si solar cells, (b) polycrystalline thin film solar cells, (c) organic solar cell? Please also list the commercialized efficiency of each cell and compare thier limitations. 6. Energy Storage (15 points) (a) What is the energy stored in the air tank of 1m^3 with 700 bar and 300K? Isothermal and reversible operation is assumed. The heat capacities for air at constant pressure are Cp=29.10 J/(K．mol). (7%) (b) Write down the reaction of positive and negative electrodes, respectively and overall reaction for lithium-cobalt-oxide battery. If the average voltage of the lithium battery is 3.6 volt and the capacity is 1000 mAh, what is the energy expressed in Joule in this battery? (8%) 7. Energy Saving (10 points) Please list five distinct ways to save energy in Taiwan. Bonus: Your suggestions to this course (5 points) From your learning experience in this semester, write down your constructive suggestions to this course if it is to be lectured next year. --

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