Data Centre Cooling Systems
1 Assignment
0 Petitions
Accused Products
Abstract
A method of cooling a data centre having at least one hot aisle (145) and at least one cold aisle (144), including the steps of producing cooling air having controlled to have temperature and relative humidity within certain pre-defined limits; supplying the cooling air to a plurality of items of IT equipment (143) located in the data centre between the cold aisle and the hot aisle; measuring the velocity of air flowing from the hot aisle to the cold aisle through an opening (150) between the hot aisle and the cold aisle; and controlling the rate of supply of cooling air to the items of IT equipment in dependence on the velocity of air so measured.
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Citations
72 Claims
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1-41. -41. (canceled)
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42. A method of cooling a data centre having at least one hot region and at least one cold region, wherein the method comprises the steps of:
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producing cooling air controlled to have temperature and relative humidity within certain pre-defined limits; supplying the cooling air, by means of an over-floor air duct, to a plurality of items of IT equipment located between the cold region and the hot region; measuring the air flow rate from the cold region to the hot region through an opening between the hot region and the cold region, and controlling the rate of supply of cooling air to the items of IT equipment in dependence on the air flow rate so measured. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A method of cooling a data centre with cooling air, wherein the method comprises the following steps:
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(a) defining criteria for the temperature and relative humidity of the cooling air, wherein the criteria are a range of temperatures and a range of humidities; (b) determining the temperature and relative humidity of ambient air from outside the data centre; (c) determining a set point for each of the temperature and relative humidity of cooling air, the set point satisfying the criteria defined in step (a) and being chosen in dependence on the temperature and relative humidity of the ambient air; (d) producing cooling air having temperature and relative humidity substantially equal to those set points; and (e) delivering the cooling air to a region in the data centre to be cooled. - View Dependent Claims (65, 66, 67, 68)
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69. Apparatus for supplying cooling air to a plurality of items of IT equipment in a data centre having at least one hot region and at least one cold region, wherein the apparatus comprises
an opening between the hot region and the cold region; -
an air flow sensor located in said opening for measuring the rate at which air passes through the opening; a source of cooling air, the cooling air having temperature and relative humidity within certain pre-defined limits, and an adjustably sized aperture located upstream of the IT equipment and downstream of the source of cooling air; wherein the apparatus is arranged such that the rate at which the cooling air is supplied to the IT equipment depends on the velocity measured by the sensor. - View Dependent Claims (70)
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71. A control system for a source of cooling air for cooling IT equipment in a data centre, wherein the control system includes
an input for receiving information about the temperature and relative humidity of ambient air outside the data centre; -
memory for storing pre-loaded criteria for the relative humidity and temperature of the cooling air, said criteria covering a range of temperatures and a range of humidities, and a processor for; (a) determining a set point for each of the temperature and relative humidity of the cooling air in view of the pre-loaded criteria and the information received about the temperature and relative humidity of the ambient air; (b) determining how much, if any, of the exhaust air and how much, if any, of the ambient air are used by the source of cooling air to produce cooling air having temperature and relative humidity substantially equal to the set points, in view of the information received about the temperature and relative humidity of the ambient air; and (c) determining how much, if any, mechanical cooling and how much, if any, adiabatic cooling is used by the source of cooling air to produce cooling air having temperature and relative humidity substantially equal to the set points, wherein the processor performs operations (a), (b) and (c) in view of the information received about the temperature and relative humidity of the ambient air. - View Dependent Claims (72)
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Specification