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The Experimental Study Of The Air Intake Device Based On The Semiconductor Refrigeration Technology

Posted on:2016-06-18Degree:MasterType:Thesis
Country:ChinaCandidate:H XuFull Text:PDF
GTID:2272330467474839Subject:Control theory and control engineering
Abstract/Summary:PDF Full Text Request
Water is the source of life, and it is also the basic substance of human existence. According to the survey, there are100countries which is shortage of water in the world, and there are26countries that is in a state of severe water shortages(including China),40%of the population suffers from a shortage of water. To solve the increasingly serious problem that is lack of freshwater resources,we combine solar photovoltaic technology, semiconductor refrigeration technology and air intake technology, we propose a new air intake mode, namely semiconductor solar air intake, and we design and manufacture of this new air intake system prototype, and the unit carried out a detailed analysis of experimental studies and specific implementations, the specific implementation follows:Part one:First, we study in detail the water vapor condensation theory, the principle of semiconductor cooling conditions and semiconductor cooling, and then we put forward the theory of semiconductor optimal cooling conditions. Then, we combine the above theory and experience to design and produce a prototype semiconductor solar air intake device, the device includes an air intake unit, control unit and the power unit of the three units. Finally, each of these three units were designed in detail, which focuses on the design of the air intake unit. We make the choice on a cooling chip validation experiments, and we designed an innovative cold heat exchanger to recover the system, greatly improving the unit rate per unit of energy of water.Part two:In order to obtain a better water effects, we conducted a pilot study of factors that impact the air intake device performance. In some sense, the greater cooling capacity, the more water production of the device, but we proposed the concept of optimal conditions of the refrigeration system-both to ensure smaller energy consumption and a larger cooling factor. On the basis of the device. We first determined heat pipe radiator heat as this device the best way through experiments. Then, we adopted this cooling method for cooling effect under different current work to do in-depth discussion to determine the current value of the optimal conditions of work. We identified the condensation chamber into the optimal air flow through the experiments. Finally, we had based on the above experimental studies to determine the optimum operating parameters of some of the system, the air-water experiments were carried out and we verified the reliability of the device. However, some scholars experimental study shows that the best way of cooling semiconductor refrigeration piece but not heat pipe cooling water cooling, then this cooling method were studied and analyzed. Secondly, the device design and processing problems, we propose an improved scheme. Finally, for existing air traffic control of the device, we proposed adaptive fuzzy PID control theory. We designed air flow rate controller and verified the stability of the control system.
Keywords/Search Tags:PV, TEC, air intake device, optimal conditions, water rate, optimization
PDF Full Text Request
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