8/17思考提出國研究計劃中我專利的一部份Thermophotovoltaic－我的生活紀錄

早上到單位大約是7:56，

今天早上利用時間一直在吸收一些國外的原文資料，

因為在想有什麼題材可以寫國外研究計劃，

就算今年無法在本處提出計劃，

在我調回南部分處也是可以提出計劃，

都是同一性質的單位，

http://www.eng.nus.edu.sg/EResnews/0310/images/rd_4.h21.jpg

http://pvlab.ioffe.ru/images/portable.gif

http://spie.org/Images/Graphics/Newsroom/Imported-2009/1593/1593_fig1.jpg

http://www.google.com.tw/search?q=thermophotovoltlaic&btnG=%E6%90%9C%E5%B0%8B&hl=zh-TW&source=hp&biw=1003&bih=578&gs_sm=e&gs_upl=711l17004l0l17395l20l20l4l8l11l0l560l3846l2-1.0.3.4l8l0&oq=thermovoltlaic&aq=f&aqi=&aql=

http://en.wikipedia.org/wiki/Thermophotovoltaic

To understand the overall benefit of TPV systems, a discussion of the basic principles of efficiency in TPVs is useful. The absolute upper limit for efficiency in TPVs (and all systems that convert heat energy to work) is the Carnot efficiency, that of an ideal heat engine. This efficiency is given by:

$\eta = 1 - \frac{T_{cell}}{T_{emit}}$

where T_cell is the temperature of the PV converter. For the best reasonable values in a practical system, T_cell~300K and T_emit~1800, giving a maximum efficiency of ~83%. This limit sets the upper limit for the system efficiency. At 83% efficiency, all heat energy is converted to radiation by the emitter which is then converted by the PV into electrical energy without losses, such as thermalization or ohmic losses. At the maximum efficiency, we also assume that there is no entropy change, which is only possible if the emitter and cell are at the same temperature. Still, as an upper limit, it is useful. Due to the complexity of TPV systems and the many sources of inefficiency, more accurate models for efficiency become quite complicated, but a discussion of the various sources of inefficiency that cause real systems to fall far short of this limit is worthwhile.

由上如果輻射器的溫度降溫到PV的cell只有25度C常溫，則效能就快接近1，

因為手邊上的案子都已設計結束，只剩出國的研究計劃，所以就看了整天的外文研究資料到下班，待下班後，回家煮麵當晚餐，也準備好明天的午餐便當，待用餐完後，小睡到20:30出發到健身房運動慢跑，再到SPA間沖水放鬆肌肉，待換洗出健身房回到家後，欣賞旅遊頻道介紹瑞士，有那邊的美食的起司鍋，還有很陡峭的高山火車，也有美麗的少女峰介紹，及最高的郵局，在瑞士高山上處處可看到戴著牛鈴的乳牛，及要看到由少女峰與阿爾卑斯山的冰川融雪的水形成的高山瀑布，需要坐電梯到10樓高的山頂去欣賞，還有高山滑索與電纜車到山頂後，再由山頂騎腳踏滑車至山下，沿途景色美崙美奐，待節目結束後，我於部落格寫下今天生活感想。