A Report On The Peltier Effect - 1069 Words

Report on the Present Investigation The Peltier-effect has been now known for 180 years. But only recently has it developed more practical uses. Now it is not only indispensable to send a spaceship to Saturn and to speed up the central processing unit of your PC. You may even find one in your lunch box! In this module, you will do simple experiments with a small peltier device. You will find out how the three different applications of the device are related. You will look at the flows of energy and realize analogies to quite different engines such as airplane engines and those in Refrigerators. The history of thermoelectric effects shows how closely related science and technology are. And you will see that scientific development sometimes goes strange ways. All modern science is quantitative. It is not enough to know whether a device works â€Å"in principle† or if it might solve some practical problems. One has to show how well it works. Science is also a network of links between different fields, and this web needs quantitative knots to hold. You will therefore carry out quantitative measurements with Peltier devices. The Peltier device is just one specific example of a thermal engine. All of these engines must comply with Carnot’s law. We will check whether this is true or whether we have a perpetual mobile†¦ Usually Peltier devices are applied as heat pumps. We will measure it s efficiency in this mode. Since the cooling load of most typical battery compartments is not high,Show MoreRelatedThe Demand For Health Care Personnel And The Supply Of Their Services1323 Words   |  6 Pageshealth Health care is a very people –focused industry. Apart from the discernible reality that patient treatment is administered on a human body, people conduct most of the procedures and treatments too. 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