By Vaibhav K. Arghode, Yogendra Joshi
The short speak about essentially facets of ventilation administration in raised flooring info facilities. first of all, cooling air supply via perforated tiles might be tested and effect of the tile geometry on circulate box improvement and sizzling air entrainment above perforated tiles could be mentioned. Secondly, using chilly aisle containment to bodily separate cold and warm areas, and reduce cold and hot air blending may be awarded. either experimental investigations and computational efforts are mentioned and improvement of computational fluid dynamics (CFD) dependent types for simulating ventilation in information facilities is incorporated. additionally, metrology instruments for facility scale air pace and temperature size, and ventilation price size via perforated ground tiles and server racks are tested and the authors current thermodynamics-based types to gauge the effectiveness and value of ventilation administration schemes in information centers.
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Additional info for Air Flow Management in Raised Floor Data Centers
45 cm) rack. There is a total of 256 thermocouples on the mobile grid which are mounted in nine planes along the width, five along the depth, and six along the height of the grid. Complete 3D mapping of the cold aisle can be performed by stitching together the acquired data along the length of the aisle. ). For some studies requiring finer spatial resolution, another planar temperature field measurement tool was developed, see Fig. 10b. ). The construction of the tool also allows minimal physical intrusion during measurements.
However, in recent experimental investigations it was observed that even if sufficient amount of air, matching the rack requirement, is delivered through the tile, a significant amount of cold air by-passes from the top (Arghode and Joshi 2015a; Kumar and Joshi 2010). This was attributed to higher momentum of air above the tile, which prevents it from turning and entering the rack, and thus escaping from the top of the aisle. Hence, to make up the rack air requirement, room air is entrained, leading to higher inlet air temperature and thus higher cooling energy consumption.
9 2011). To understand the overall thermal field in a data center and factors that affect the thermal field uniformity at the rack inlets, it is important to measure large scale thermal fields in the data center room space. This also allows us to comprehend the regions of hot and cold air mixing and entrainment of hot air in the supplied cold air. Based on this, appropriate remedies could be found to achieve an efficient air delivery scheme to the servers. Thermocouples are useful for measuring the air temperature due to ease of construction, low cost and well know characteristics.