{"title":"太阳能船只在不同速度设置下的能源消耗","authors":"D. Berjoza, I. Jurgena, V. Osadcuks","doi":"10.22616/erdev.2021.20.tf380","DOIUrl":null,"url":null,"abstract":"Since the world’s energy resources decrease, it is necessary to seek for opportunities to use renewable energy sources. One of the renewable sources is solar energy. During the last decade, solar energy was used by stationary installations for electricity generation, yet the use of solar energy by mobile installations is limited due to the size of solar photovoltaic panels. Modern vehicles typically use low-power solar panels to charge their batteries and power low-power electric devices. The present research used a plastic hull boat equipped with a standard electric motor Minn Kota Endura 30 and a 330W 36 V photovoltaic panel. Two experiments were conducted on the boat. During the pilot experiment, a distance of 41.5 km was covered by the boat equipped with a 5 Ah battery and a solar panel in 8.5 hours. The experiment was conducted on the Lielupe River upstream and downstream, seeking to reach the highest speed at different solar intensities in the month of August. The second experiment was conducted in September on a circular route in standing water, operating the boat at 5 different speed settings with average motor current consumption ranging from 7.3 to 21.86 A. The experiment identified the battery’s charging and discharging current and voltage, and the motor’s current and voltage at all the speed settings. The experiments showed that on a sunny day in the conditions in Latvia, the boat equipped with a stationary 330W solar photovoltaic panel can reach a maximum speed of up to 6 kmh without using the battery. The efficiency of the solar panel was significantly affected by the direction of the boat’s movement, which affected the angle of solar radiation and therefore the efficiency of the solar panel. To improve the efficiency of the solar panel, it is necessary to design a solar panel angle adjustment device that should be controlled automatically. Such a device is planned to be developed at the next stages of the research.","PeriodicalId":137227,"journal":{"name":"20th International Scientific Conference Engineering for Rural Development Proceedings","volume":"18 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Energy consumption by solar-powered watercraft at various speed settings\",\"authors\":\"D. Berjoza, I. Jurgena, V. Osadcuks\",\"doi\":\"10.22616/erdev.2021.20.tf380\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Since the world’s energy resources decrease, it is necessary to seek for opportunities to use renewable energy sources. One of the renewable sources is solar energy. During the last decade, solar energy was used by stationary installations for electricity generation, yet the use of solar energy by mobile installations is limited due to the size of solar photovoltaic panels. Modern vehicles typically use low-power solar panels to charge their batteries and power low-power electric devices. The present research used a plastic hull boat equipped with a standard electric motor Minn Kota Endura 30 and a 330W 36 V photovoltaic panel. Two experiments were conducted on the boat. During the pilot experiment, a distance of 41.5 km was covered by the boat equipped with a 5 Ah battery and a solar panel in 8.5 hours. The experiment was conducted on the Lielupe River upstream and downstream, seeking to reach the highest speed at different solar intensities in the month of August. The second experiment was conducted in September on a circular route in standing water, operating the boat at 5 different speed settings with average motor current consumption ranging from 7.3 to 21.86 A. The experiment identified the battery’s charging and discharging current and voltage, and the motor’s current and voltage at all the speed settings. The experiments showed that on a sunny day in the conditions in Latvia, the boat equipped with a stationary 330W solar photovoltaic panel can reach a maximum speed of up to 6 kmh without using the battery. The efficiency of the solar panel was significantly affected by the direction of the boat’s movement, which affected the angle of solar radiation and therefore the efficiency of the solar panel. To improve the efficiency of the solar panel, it is necessary to design a solar panel angle adjustment device that should be controlled automatically. 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引用次数: 1
摘要
由于世界能源资源的减少,有必要寻找使用可再生能源的机会。可再生能源之一是太阳能。在过去十年中,太阳能被固定装置用于发电,但由于太阳能光电板的大小,移动装置对太阳能的使用受到限制。现代汽车通常使用低功率太阳能电池板为电池充电,并为低功率电子设备供电。目前的研究使用了一艘配备标准电动马达Minn Kota Endura 30和330W 36v光伏板的塑料船体船。在船上进行了两项实验。在试航试验中,配备5ah电池和太阳能板的船在8.5小时内航行了41.5公里。实验在列卢佩河的上游和下游进行,寻求在8月份不同太阳强度下达到最高速度。第二次实验于9月在静水中的环形路线上进行,在5种不同的速度设置下操作船,平均电机电流消耗从7.3到21.86 a不等。实验确定了电池的充放电电流和电压,以及电机在所有转速设置下的电流和电压。实验表明,在晴朗的日子里,在拉脱维亚的条件下,配备固定式330W太阳能光伏板的船可以在不使用电池的情况下达到最高6公里的速度。太阳能板的效率受到船的运动方向的显著影响,这影响了太阳辐射的角度,从而影响了太阳能板的效率。为了提高太阳能电池板的工作效率,有必要设计一种太阳能电池板角度调节装置,该装置应自动控制。这种装置计划在研究的下一阶段进行开发。
Energy consumption by solar-powered watercraft at various speed settings
Since the world’s energy resources decrease, it is necessary to seek for opportunities to use renewable energy sources. One of the renewable sources is solar energy. During the last decade, solar energy was used by stationary installations for electricity generation, yet the use of solar energy by mobile installations is limited due to the size of solar photovoltaic panels. Modern vehicles typically use low-power solar panels to charge their batteries and power low-power electric devices. The present research used a plastic hull boat equipped with a standard electric motor Minn Kota Endura 30 and a 330W 36 V photovoltaic panel. Two experiments were conducted on the boat. During the pilot experiment, a distance of 41.5 km was covered by the boat equipped with a 5 Ah battery and a solar panel in 8.5 hours. The experiment was conducted on the Lielupe River upstream and downstream, seeking to reach the highest speed at different solar intensities in the month of August. The second experiment was conducted in September on a circular route in standing water, operating the boat at 5 different speed settings with average motor current consumption ranging from 7.3 to 21.86 A. The experiment identified the battery’s charging and discharging current and voltage, and the motor’s current and voltage at all the speed settings. The experiments showed that on a sunny day in the conditions in Latvia, the boat equipped with a stationary 330W solar photovoltaic panel can reach a maximum speed of up to 6 kmh without using the battery. The efficiency of the solar panel was significantly affected by the direction of the boat’s movement, which affected the angle of solar radiation and therefore the efficiency of the solar panel. To improve the efficiency of the solar panel, it is necessary to design a solar panel angle adjustment device that should be controlled automatically. Such a device is planned to be developed at the next stages of the research.