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首页> 外文期刊>American Journal of Mechanical Engineering >PWM Control of a Cooling Tower in a Thermally Homeostatic Building
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PWM Control of a Cooling Tower in a Thermally Homeostatic Building

机译：热稳态建筑物中冷却塔的PWM控制

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Thermal Homeostasis in Buildings (THiB) is a new concept of building conditioning. Since summer cooling is the more challenging of building conditioning, several earlier papers focused on the study of natural summer cooling by using cooling tower (CT). The goal was to show the possibility and conditions of natural cooling, i.e., under what extreme day by day conditions that it is still possible for natural cooling to keep indoor temperature from exceeding a given maximum value: since no consideration was given to limiting indoor temperature above a minimum, in fact CT overcooling would be the problem for most part of the summer. This paper presents a fuller consideration of continual operation of a CT throughout the whole summer with pulse-width modulation (PWM) control of the tower operation. The goal here is to find to what extent the indoor temperature can be kept within the comfort zone. To put it another way, determine whether hours or percentile of hours out of total annual hours that the operative temperatures are out of the comfort zone are acceptable or not in a small sample of cities.
机译：建筑物中的热平衡（THiB）是建筑物调节的新概念。由于夏季制冷是建筑物空调的挑战，因此，较早的几篇论文都集中在使用冷却塔（CT）研究夏季自然制冷方面。目的是显示自然冷却的可能性和条件，即在极端极端的条件下，自然冷却仍然可以保持室内温度不超过给定的最大值：因为没有考虑限制室内温度高于最低温度，实际上在整个夏季的大部分时间里，CT都会过冷。本文通过塔架运行的脉宽调制（PWM）控制，对整个夏季CT的连续运行进行了更全面的考虑。这里的目标是找出室内温度可以保持在舒适区域内的程度。换句话说，确定在一小部分城市中，可接受的工作温度超出舒适区的年总小时数中的小时数或小时百分位数是否可接受。

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