Cooling and Heat Recovery of Data Centers
Author | : Ahmad Alamir Sbaity |
Publisher | : |
Total Pages | : 159 |
Release | : 2022 |
ISBN-10 | : OCLC:1305511422 |
ISBN-13 | : |
Rating | : 4/5 (22 Downloads) |
Book excerpt: The objective of this study is to investigate passive and hybrid cooling, by performing heat recovery within a typical data center. The chosen cooling method is the thermosyphon loop, as it allows the transfer of high powers over a long distance. The chosen evaporator is a microchannel heat exchanger, the condenser is formed by finned tubes. An experimental parametric study is made by varying the fill ratio, the thermal power of the servers and the outside temperature of the air ensuring the cooling by natural convection. A second experimental study is done by cooling the condenser with water in forced convection. An annual numerical study on data centers in several cities in France is done to quantify the energy savings achieved with passive and hybrid cooling. The pPUE (partial power use efficiency) coefficient is calculated to evaluate the efficiency of the proposed cooling system. Finally, the thermosyphon loop is combined with a heat pump in order to recover heat from the data centers and distribute it. The energy savings of the proposed system are compared to the use of a boiler to heat a house. An economic study is made to calculate the payback period in several climates. The ERE (energy reuse efficiency) coefficient is also calculated to evaluate the capacity of the heat recovery system.