Engineering, 20.08.2019 18:20 stormserena

Acomputer terminal room contains 125 computers with a power consumption of 130w. the room is well-insulated so that only 25% of the energy generated by the computers and their operators is dissipated through the walls. the room is 15 x 40 m with a 2.5m high ceiling and the ventilation system changes 0.9m/s resulting in a net energy flow 20kj/m. calculate the temperature of the air in the room at 10am if all of the computers are used continuously by operators with a metabolic output 85w from 9am when the temperature was 18°c. assume the specific gas constant and specific heat capacity for air are 287 j/kg. k and 1.005 kj/kg. k respectively and that atmospheric pressure is 101bar.

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Acomputer terminal room contains 125 computers with a power consumption of 130w. the room is well-in...

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