Engineering, 14.12.2021 14:00 itzia00
Cho sơ đồ chỉnh lưu thyristor ba pha, kiểu tia . Mach tải gồm điện trở R nối tiếp với điện cảm L. Nguồn điện áp xoay chiều có trị hiệu đụng điện áp pha U-220v/50Hz, R = 40, a = 80°. Hãy tính xem L phải bằng bao nhiêu để thiết bị chỉnh lưu làm việc trên ranh giới giữa dòng liên tục và dòng gián đoạn.
Answers: 3
Engineering, 04.07.2019 18:10
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
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Engineering, 04.07.2019 18:10
You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?
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Engineering, 04.07.2019 19:10
What is the main objective of using reheat rankine cycle?
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Engineering, 04.07.2019 19:10
Asteel wire of 2 mm diameter is fixed between two points located 2 m apart. the tensile force in the wire is 250n, if its density of steel is given by 7830 kg/m3 the fundamental frequency of vibration hz? ?
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Cho sơ đồ chỉnh lưu thyristor ba pha, kiểu tia . Mach tải gồm điện trở R nối tiếp với điện cảm L. Ng...
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