The utility model relates to a thermal-insulated formula fire control smoke exhaust fan, this system includes the shell, the inner tube, the fan blade of discharging fume, cooling air air-supply line, cooling air go out the tuber pipe, the electric machine cooling fan, the motor, wherein ...
Calculation formula for the number of ventilators: number of ventilators =volxma/c / the ventilation capacity (m3/h) is determined by table 2 No power ventilator specification model: MODEL BLADE HEIGHT (MM) VENTILATION DIAMETER (MM) OIC-100 12 200 ...
2.Points out that the exhaust air rate calculated with ventilating rate method is not enough to reject the heat from the transformer room in basement, provides the calculation formula of exhaust air rate based on the heat gain from transformer loss and the stipulation in electrical design code ...
Accurate calculation formulas, rather than the given values from airflow visualization experiments, are still needed in practice. The energy balance method is proposed on the basis of the sensible load in the room. In the calculation, a special factor that considers the hood efficiency is employed...
For system design purposes the calculation of maximum flow needs to be based on the fuel consumption of the largest scheduled engine at full rated power; an example of the data required and the calculation for a naturally aspirated gasoline engine of 130kW output is shown inTable 6.4. In most...
A Pitot tube is used to sense the pressure difference generated by the air flow, and the pressure sensor cooperates with the Pitot tube, which converts the acquired differential pressure data into electrical signals, and the processing and calculation results in the wind speed. The technical ...
It provides an algorithm for the calculation of monaural or binaural loudness for sounds recorded using a single microphone, using a head and torso simulator, or for sounds presented via earphones. The method is based on the Moore-Glasberg algorithm. DIN 45631 Procedure for calculating loudness le...
asometimes we need to include a specific cell in each calculation,containing say,a constant.to do this,we need to identify it in the formula as an absolute reference.this is accomplished by placing a $ sign in front of the column and row cell identifiers,for example,$B$2.placing the sig...
aThe calculation formula for PPM 演算惯例为PPM[translate] awhat do you have 什么您有[translate] aI go to school by bus 我去学校乘公共汽车[translate] a今天是我生日,大家要祝我生日快乐哦! 今天是我生日,大家要祝我生日快乐哦![translate]
By physical experiment on the equalizer for air exhaust and numerical simulation on the wind speed and pressure in main air duct,obtains the calculation formula of maximum resistance coefficient of the equalizer for air exhaust in the main air duct,and studies the correlation between resistance coeff...