Experimental study on operation optimization of air-cooled fans in supercritical units
Optimizing the operation of air-cooled fans to determine the optimal fan operating frequency for air-cooled units under different environmental temperatures and loads,thereby improving the economic operation of the unit.The results show that at 50%THA condition of the unit,within the temperature parameter range of 5～15 ℃,increasing the frequency of the air-cooled fans causes the unit back pressure to approach the blocking back pressure;within the temperature parameter range of 5～30 ℃,the air-cooled fan frequency should operate around 39 Hz.At 75%THA condition,within the temperature parameter range of 5～15 ℃,increasing the frequency of the air-cooled fans causes the unit back pressure to approach the blocking back pressure;within the temperature parameter range of 15～25 ℃,the air-cooled fan frequency should operate around 39 Hz;when the temperature parameter exceeds 30 ℃,the air-cooled fans should operate at an overclocked frequency.At 100%THA condition of the unit,within the temperature parameter range of 5～30 ℃,the air-cooled fans should all operate at an overclocked frequency.
direct air coolingoperation optimizationoptimal vacuumoptimal fan frequency
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