Ventilator energy efficiency optimized design method based on systematic mode identification technology
An identification technology and system mode technology, which is applied in the field of ventilation fan energy efficiency optimization design based on system mode identification technology, can solve problems such as lack of detection methods, and achieve the effects of high data reliability, low cost and strong pertinence
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[0026] Optimal Design Method of Ventilator Energy Efficiency Based on System Pattern Recognition Technology
[0027] 1. Testing process-----Establishment of mathematical model and energy efficiency expert analysis system
[0028] 1. Energy efficiency value of ventilator
[0029] In the design and testing of the fan, use the shaft efficiency η a To characterize the energy efficiency of the ventilator:
[0030] η a =P u / P a
[0031] Where: P a (kW) ----- Fan shaft power
[0032] P u (kW)-----Ventilator air power
[0033] In the above formula, the fan shaft power is directly measured by a torque meter and a speed measuring instrument, and the fan air power is calculated by the following formula
[0034] P u = P tF q v / 1000
[0035] p tF (Pa)-----Full pressure of fan supply air
[0036] q v (m 3 / h)-----Measured air volume of the fan
[0037] The air volume and total pressure of the ventilator can be measured by the air chamber measuring device specified by the national standard.
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