Air conditioning refrigerating capacity calculation formula

Air conditioning refrigerating capacity calculation formula:a:air conditioning,horse originally refers to the input power,including compressor,fan motors and electrical control part,due to different brand their specific system and 8500w gasoline generator electric control design,the output of the refrigerating capacity of different so the refrigerating capacity in terms of output power.In general,the refrigerating capacity of the electricalmotor1.blogspot.com 1 horse big efforts to 2000 calories,converted to international units should be multiplied by 1.162,so the refrigerating capacity of 1 horse stress 2000 kcal x 1.162 = 2324 (w),w here (tile) indicates that the refrigerating capacity,the horse should be 1.5 2000 kcal x1.5 x1.162 = 3486 (w),and so on,

according to the situation,can roughly determine the horse number of air conditioning and refrigerating capacity,in general,can be called a 2600 w,2200 w,1,4500-5100 (w) (w) can be called two horses,a 3600 w,3200 w can be referred to as 1.5.Refrigerating capacity is determined,can according to the motor vehicle actual situation to estimate the capacity of his own family,choose a suitable air conditioner.The greater part of household appliances consume refrigerating capacity,TV,lamp,refrigerator and other every w (w) power consumption refrigerating capacity 1 (w),the direction of the doors and Windows also consumes a refrigerating capacity,the east diesel generators prices window 150 w/m2,west Windows 280 / m2,the south window 180 w/m2,north of 100 w/m2,window so the roof and may consider appropriate to increase the capacity of with a western. When choosing air conditioning,please according to the above introduction,the refrigerating capacity of the estimate for the own size,and choose to the satisfaction of the air conditioner.

Motor are briefly introduced

Motor is a kind of rotary electric machine, motor. Motor electrical energy into mechanical

www.facebook.com/guohong.trading energy, it mainly includes a magnetic field to

produce electromagnetic winding or the distribution of the stator winding and a rotating armature or rotor. Under the effect of rotating magnetic field of stator winding, the effective of the electric motor stator winding is energized and make its rotation by the role of the

magnetic field. According to the reversible motor principle, if the motor without any change in its

structure, motor or motor use, also can be used for the generator. It is the electrical

asynchronous motor energy into mechanical energy of a machine. Usually work part of

the motor rotation, called the motor rotor motor; Also has a linear movement, known as linear motor. Electric function provides a large range of power, class from milliwatts to kw. Machine tools, water pumps, motor drive; Electric locomotive, elevators, traction motor is electric motors pricerequired. Family life of the electric fan, refrigerator, washing machine, and even all

kinds of motor toys is inseparable from the motor. Motor has been used in all aspects of modern

social life.

Commonly used asynchronous motor frequency control of motor speed control mode

Common induction motor variable frequency speed regulation control method usually has two kinds,namely the constant torque frequency control of motor speed and constant power variable frequency speed regulation.(1) the constant torque frequency control of motor speed.Simply adjust the frequency of the ac power,although can achieve the purpose of adjusting the motor speed,but will worsen motor operation performance.Balance equations,this is because the motor U1 material E1 K1N1f1 phi wholesalemotor.blogspot.com m = 4.44,if the supply voltage U1 is changeless,is reduced when the frequency of f1,main flux phi m would increase,this will lead to motor magnetic circuit saturation overly,increase the excitation current,core loss increase,the power factor decreased;On the other hand,if increase frequency f1,phi m reduced,decreased the output torque of the motor,the motor capacity is not full play.In motor learning,we know that the asynchronous motor output torque,T2 is proportional to the U21 / F21 so asynchronous motor in the process of frequency control of acmotortrading.blogspot.com motor speed,if keep U1 / f1 is constant,the power supply voltage and frequency proportional adjustment,namely before and after the output torque of the motor can maintain speed control is constant,constant torque control is currently the most widely used a way of frequency control of motor speed control.(2) constant power variable frequency speed regulation.The output small electric motors power of motor lamination the asynchronous motor P2 is proportional to the U21 / F21.Therefore in the process of speed regulation,if can keep the U21 / f1 is constant,the speed before and after asynchronous motor output power remains the same,namely the constant power speed regulation.Some transportation machinery,such as electric drive locomotives,urban rail transportation,trolley buses,etc.,hoping to realize constant power control of motor speed,namely when the motor speed is low,the output torque is big,can produce large enough traction locomotive,vehicle speed,motor speed,high output torque can be smaller (only need to overcome the running resistance).

The purpose of the motor

Motor USES many to heavy industry,and a small toy,in its tracks.In different circumstances can choose different types of wholesalemotor.blogspot.com motor,the following are some examples: The wind device,such as electric fans Electric toy car,boat,etc Elevator,the elevator With electric powered vehicles,such as underground railway,trams Automobiles,jet and helicopter starting motor (starter motor) Factory with big lots of conveyor belt The electric automatic doors on the rotor balancing machinebus Electric roller shutter Consumer goods drive The printer The

washing machine The water pump Disk drive Electric shaver The tape recorder Video camera CD players Industrial and commercial purposes Express elevator Machine tools (such as: machine tool) loom 8500w gasoline generator A blender.