
Categories: 竞博体育.
污垢对填充物的影响是什么,它对塔的整体性能意味着什么? 这是布伦特伍德研究了几年的问题。 As film fills have evolved and tower owner/operators have paid tuition to the “school of hard knocks,” it has become apparent that one of the keys to proper fill choice is choosing a fill that lasts for years so that you can get a positive return on your investment.
衡量填充性能与污垢阻力的平衡尺度意味着,通常,为了获得污垢阻力,您必须放弃冷却性能。 低污染填充物的设计将这一事实纳入设计中。 当填充物设计师设计出低污染的填充物时,我们牺牲了一些初始冷却能力,目的是当填充物发生污染时,它将能够在长期内保持大致相同的冷却能力。
这意味着,如果塔是围绕低污染填料设计的,为了实现相同的设计职责,它将比围绕高效填料设计的塔更大和/或需要更多的气流(即,如果它不是自然通风塔)。 一般来说,这意味着低污染填充塔的初始费用将高于同等设计的高效填充塔。 虽然从资本支出的角度来看,这可能是有意义的,但如果塔在短短5年内失去15%的冷却能力,则由于生产能力的丧失或其他因素,每年的经常性支出可能会飙升。
根据Brentwood研发设施的测试,我们比较了污垢对薄膜填充和新型“线框”式产品的影响。 我们的目标是比较污垢特征和污垢对不同产品同时的整体冷却能力的影响。 因此,在给定的循环水条件下,在相同的时间内,会积累多少污垢和沉积物,这会对“新”填料的冷却能力产生什么影响?
In the film fill category, we tested our CF1900MA cross-fluted high efficiency fill and our OF21MA offset-fluted high efficiency/fouling resistant fill. 在结果中,我们显示了对塔冷却能力的影响如下:
For the results on “wire-frame” style trickle and modular splash fills, check out the paper that Brentwood is presenting at the 2017 冷却技术研究所 (CTI) Annual Conference in New Orleans, LA, or purchase it from CTI – Paper# TP17-05, “A Study on the Bio-Fouling Characteristics of Contemporary Trickle and 模块化飞溅填充.” It provides an interesting look at the differences in fouling resistance between two different “wire-frame” products, the ramifications of trickle vs。 splash cooling, and the role that traditional fouling resistance parameters such as water film velocities play on the long-term cooling performance of fill.
