Method and system for determining the level of efficiency of a ventilation system of an electrical enclosure
First Claim
1. A method for determining the level of efficiency of a ventilation system of an electrical enclosure to house one or more electrical devices, said ventilation system comprising an air inlet, at least one fan for assisting injection of air inside the enclosure in order to cool each electrical device, an air inlet filter designed to filter the air injected inside the enclosure and an air outlet designed to allow evacuation of the hot air outside the enclosure, said method comprising:
- determining a profile of the power dissipated by the Joule effect inside the electrical enclosure by each electrical device, during a learning period;
evaluating the level of efficiency of ventilation system, by;
determining the average air flow rate of the fan over an evaluation period from a profile of the temperature of the air outside the enclosure obtained over said evaluation period, a profile of the temperature of the air at the outlet of the enclosure, and said dissipated power profile determined during the learning step, andcomparing the average air flow rate determined over said evaluation period with one or more threshold values in order to determine the level of efficiency of the ventilation system; and
outputting an indicator of the determined level of efficiency of the ventilation system.
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Abstract
A method for determining the level of efficiency of a ventilation system of an electrical enclosure intended to house one or more electrical devices, the method including a learning step including a step for determining a profile of the power dissipated via the Joule effect by each electrical device, an evaluation step for evaluating the level of efficiency of the ventilation system, including a step for determining the average air flow rate of a fan from a profile of the temperature of the air outside the enclosure obtained over an evaluation period, a profile of the temperature of the air at the outlet of the enclosure, and the dissipated power profile determined during the learning step, a step for comparing the average air flow rate with one or more threshold values in order to determine the level of efficiency of the ventilation system.
15 Citations
18 Claims
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1. A method for determining the level of efficiency of a ventilation system of an electrical enclosure to house one or more electrical devices, said ventilation system comprising an air inlet, at least one fan for assisting injection of air inside the enclosure in order to cool each electrical device, an air inlet filter designed to filter the air injected inside the enclosure and an air outlet designed to allow evacuation of the hot air outside the enclosure, said method comprising:
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determining a profile of the power dissipated by the Joule effect inside the electrical enclosure by each electrical device, during a learning period; evaluating the level of efficiency of ventilation system, by; determining the average air flow rate of the fan over an evaluation period from a profile of the temperature of the air outside the enclosure obtained over said evaluation period, a profile of the temperature of the air at the outlet of the enclosure, and said dissipated power profile determined during the learning step, and comparing the average air flow rate determined over said evaluation period with one or more threshold values in order to determine the level of efficiency of the ventilation system; and outputting an indicator of the determined level of efficiency of the ventilation system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for determining the level of efficiency of a ventilation system of an electrical enclosure intended to house one or more electrical devices, said ventilation system comprising an air inlet, at least one fan for assisting injection of air inside the enclosure in order to cool each electrical device, an air inlet filter designed to filter the air injected inside the enclosure and an air outlet designed to allow evacuation of the hot air outside the enclosure, comprising:
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processing circuitry configured to determine a profile of the power dissipated by the Joule effect inside the electrical enclosure by each electrical device, during a learning period, evaluate the level of efficiency of the ventilation system, by; determining the average air flow rate of the fan over an evaluation period from a profile of the temperature of the air outside the enclosure obtained over said evaluation period, a profile of the temperature of the air at the outlet of the enclosure, and said dissipated power profile determined during the learning step, and comparing the average air flow rate determined over said evaluation period with one or more threshold values in order to determine the level of efficiency of the ventilation system; and output an indicator of the determined level of efficiency of the ventilation system. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification