Summary: | 碩士 === 國立臺北科技大學 === 能源與冷凍空調工程系碩士班 === 100 === In the modern high-tech world, air conditioner has become one irreplaceable product which is equipped with high-tech factories, business buildings and dwelling houses to achieve the specific objective. Evaluating from the perspective of the current earth resources and environments, apart from the convenience coming from the air conditioner, the comfort and economic benefits of the users are also demanded. As a result, it has to balance the comfort and energy-saving benefits.
Conventionally, the outlet temperature of water chiller unit is a constant value, which tends to cause the discomfort and power consumption due to extremely low temperature. Therefore, this paper explores and analyzes the power consumptions of secondary pump, ventilator of air conditioner box and water chiller unit under different outlet temperatures while maintaining the thermal comfort of room, so as to find out the outlet temperature setting with the combination of the least power consumption. Accordingly, thesis builds a set of control system, adopting the fuzzy theory to control the frequency of compressor of water chilling unit, secondary pump and ventilator of air conditioner box, so as to realize the thermal comfort of room and fixed outlet temperature. According to the experimental results, when the outlet temperature of chilling water is set as 12℃, the thermal comfort of room can be maintained at 0.5 and the energy can be saved effectively.
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