Sunday, October 11, 2020

Mixer grinder

Mixer is basic need of everyone house,without mixer cooking is impossible today ,It has special attachment to home maker. Without mixer we can't even think of cooking simple dishes.

History of mixer is very interesting 

Hebert Johnson first discovered standing mixer to help in egg mixing and dough mixing.

Mr Mathur designed Indian Mixie which helps in blending Indian Masala. It all started with  dough mixer and scientists taught its difficult to blend Indian Masala in that mixer, so the innovation of mixer came into picture. Scientists love for his wife made him to think mixer grinder to help all home maker. Braun mixer his wife was using and he was asked to repair it, however it was not suitable for Indian masala so he discovered  Indian mixer.

 Mechanism of mixer 

Mixer has universal DC motor,

Which works both in AC and DC current,mixer should run in higher RPM so that it can blend the masala nicely,

universal motor has higher power output with smaller size and starting torque to high and lower speed and to carry high load,means small device running at higher RPM to blend Indian masala.

Small device running at higher RPM  is more interesting here.

750 watt mixer
750 Watt means

Higher Wattage means running at high-speed which helps in blending the Masala neatly.For one minute how fast the blade in the Jar rotate is important.

If we run mixer by 1 hour.

power consumed is calculated by (750watt*1hr)

Energy Transformation in mixer grinder.

The rotation and electricity produces heat energy,this will make blades to rotate and produce noise and small light ,light indicates mixer is connected to electricity switch.

electrical energy is converted into mechanical,heat,noise,light energy.

400 watt mixer

400 watt mixer

Less Watt means
mixer runs at lower RPM,
1 unit of electricity means 1 kw if device is using 400 Watt total power 
total power consumed is 400/1000=0.4 KW
400 KW ,230V


Future :
Universal motor is 70% efficient.
so BL DC motor will be used for more efficient.permanent magnet outside will designed for more efficiency.






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