Principles of Physics 11th ISV Edition · Temperature, Heat, and the First Law of Thermodynamics · Problem 51
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Walker, Halliday & Resnick — Temperature, Heat, and the First Law of Thermodynamics: Problem 51
51 In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that the efficiency of the overall system is 20% (that is, 80% of the incident solar energy is lost from the system). What collector area is necessary to raise the temperature of 200 L of water in the tank from 20°C to 40°C in 1.0 h when the intensity of incident sunlight is 750 W/m²?
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주어진 조건: 51 In, 20°C, 40°C, 750 W
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Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Temperature, Heat, and the First Law of Thermodynamics