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  • 學位論文

水壓力控制應用於農地灌溉系統

Water Pressure Control Applied to Farmland Irrigation System

指導教授 : 陳瑞發

摘要


台灣山高陡峭,河川湍急,降雨時間及空間分配不均,導致部分地區在枯水期水源供應不足而缺水。加上台灣經濟發展蓬勃,人口不斷增加,使得需水量增加,而用水需求量最多的是農業用水,在農業用水之中,灌溉用水占最多比率,因此若能節省灌溉用水,就能減緩缺水的情形。 本研究擬解決在水壓力過大的情況下造成灌溉水量過多,及水壓力過小的情況下使得末端管路無水灌溉,因此應用加油機定量加油的運作模式控制水壓力,進行節水灌溉,並且找出切換供水壓力最佳時間點。 透過控制水壓力灌溉系統,可以減少在水壓力大時噴灑過多的水量,以達到節水的成果,並且可以確保在末端管路可以灌溉到需灌溉的水量。

並列摘要


The mountains in Taiwan are usually high and steep; therefore, the rivers are also short and steep in Taiwan. The water flows in these rivers are rapid in the rainy season, and some of the rivers may not have enough water for the usual needs. Recently, due to the growth of the industrial needs and everyone’s daily usage of the water, most of the water is still distributed for the agriculture purpose. And the irrigation water takes the largest portion of all the agriculture water. Hence, if we can save the water lost during the irrigation processes, it may reduce the urgency of the lacking water situations. This thesis intends to solve the problem that if the water pressure is too high, the amount of irrigation water will be too much, and if the water pressure is too low, the end pipeline will be waterlessly irrigated. Therefore, the operation mode of the refueling machine is used to control the water pressure, water-saving irrigation, and find The best time to switch the water supply pressure. By controlling the water pressure irrigation system, it is can reduce the amount of water sprayed when the water pressure is high, in order to achieve water saving, and to ensure that water can be irrigated at the end line.

參考文獻


[1]經濟部水利署。2018。臺灣地區106年降雨量概況。水利統計簡訊,第309期。
[2]鄭友誠。2006。氣候變遷下農業灌溉水資源調適因應策略。農政與農情,第285期。
[3] 劉娜、王林波、周斌、傅靜、姚沁园。2007。加油機定量加油與非定量加油計量誤差分析。計量與測試技術。第34卷第10期。
[4] R. G. Allen (1996). Relating the Hazen-Williams and Darcy-Weisbach friction loss equations for pressurized irrigation. Applied Engineering in Agriculture, 12(6), 685–693.
[5] 賀武志。1986。坡地噴灑灌溉末端系統合理管徑之選定。碩士論文。台北:國立台灣大學農業工程研究所。

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