Abstract
Abstract With the advent of high-performance of data centre, the energy consumption of servers has proliferated. Consequently, the generated tremendous amount of heat requires huge energy consumption. Improving energy efficiency is going to play a key role in reducing the energy consumption of data centre. Adopting the heat sink with higher heat transfer and flow performance or precisely control the cooling capacity are two effective way for energy saving in heat dissipation. In this paper, three water cooled heat sink with different pin fin are evaluated by experiments. The heat sink with square pin fin has better heat and flow effect. Meanwhile, the precisely control of the pump power according to the working load is used for energy saving. The energy saving effect is evaluated by benefit factor. However, the most effective way of energy saving is adopting the heat sink with higher comprehensive effect.
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