【作者】 李仕成；

【导师】 董国海；

【作者基本信息】 大连理工大学 ， 港口、海岸及近海工程， 2006， 硕士

【摘要】 海洋波浪能作为一种无污染的可再生能源,长期以来,世界各国对其投入了大量的研究。振荡水柱(OWC)式波能转换装置由于具有较高的可靠性,在欧洲等一些波能密度较大的国家,得到广泛的采用。但这种装置的缺点在于:建造费用昂贵、施工困难、转换效率低。在波能密度低的国家,如中国,继续采用这种装置就显得很不理想。 本文研究的振荡浮子(OD)式波能转换装置用一个放在港中的浮子作为波浪能的吸收载体,然后将浮子吸收的能量通过一个放在岸上的机械或液压装置转换出去,用来驱动发电机发电。这种装置的主要优点是:建造成本低、转换效率高。尽管其可靠性有所下降,但由于波能密度较低,在采用有效保护措施的条件下,装置的性能不受影响。 本文研究的内容包括以下几个部分:在第2章中,通过数值计算对影响装置性能的各参数进行了优化,得到各参数的最优值。第3章在前面优化结果的基础上,对试验模型进行了设计,在设计中,综合考虑了装置的实用性,使该模型装置可以较好地在实际工程中采用。在第4章中,对装置进行了实验研究,从试验结果可看出:振荡浮子式波能转换装置具有与振荡水柱式波能转换装置相当的俘获宽度比;具有比振荡水柱装置搞得多的总转换效率;因此,振荡浮子式波能转换装置是一种具有极好前景的波能转换装置。更多还原

【Abstract】 Scientists of many countries have investigated wave energy, as a kind of clean, renewable energy, for many years. Because of its high reliability, the Oscillating Water Column (OWC) wave power device is adopted widely in some European countries where the wave power levels in KW/m crest length is larger. But disadvantages of this device can not be ignored: (1) it is expensive and difficult to be built. (2) It is of low efficiency. So for some countries where the energy stream is lower, just as China, it is unadvisable to adopt this device.The Oscillating buoy wave power Device (OD) investigated in this paper consists of a buoy placed in a port and some hydraulic or mechanical devices mounted on the coast. The buoy extracts wave energy and drives a generator through the hydraulic or mechanical devices to generate electricity. The advantages of this device are that it is cheaper and high efficient, as a cost, the reliability of this device is lowered. So this device is attractive to some countries where the wave energy stream is lower. With effective protection the performance of this device will be impervious to its low reliability.There are five chapters in this thesis: chapter 1 is the foreword and chapter 5 is the conclusion. In chapter 2, we optimize parameters affecting the performance of the device by calculation, and gain the optimal parameters. In chapter 3, the test model is designed according to the above optimization results, and the model has good practicability. In chapter 4, we investigate the OD by experiment. The experimental results show that: the capture width ratio of the OD is nearly equal to that of the OWC;the total efficiency of the OD is much higher than that of the OWC. Therefore the OD is a promising wave power device.更多还原