Saturday, December 30, 2006

How to run AC units efficiently at home or office? PART 6

Now you have selected and installed a inverter unit. Setting up the required temperature is your job, as you only must know what you want!

After this is over, let us assume that you have just entered the room and switched on the unit. As the room was unconditioned till then, the difference between the set point and room temp at that time will be high. Sensing this, the system sets itself to produce maximum cooling. The temp starts approaching the set point. As soon as the room temperature is reached, the compressor does not cut off now. Some heat continues to flow into the room constantly, the compressor runs at a matching speed just producing that much of cooling only. So there is no questioning of over cooling. We have eliminated the requirement for thermostat having to perform two opposing functions at a single set point. It simply keeps relaying the room temperature only to the control system. Now that the need for more or faster cooling is over, the compressor receives a command to reduce its speed. Thus the room temperature just stays where you want it to stay with no fluctuations or cycling. As there is no frequent staring and stopping of compressor, the power supply also does not get disturbed. Thus the unit meets the cooling demand as per needs, producing more at the beginning till the room is fully cooled, and then adjusting its speed in line with the room load.

Imagine this type of units being used by all. Will it not be nice? The energy demand will be reduced especially in nights, and voltage as a result will stay more stable! Government can relax, having solved the problem of shortage of electricity as well as avoiding fluctuations in voltages!

Thus having reduced the momentary demand to lower values from users of such small capacity clients, how can this benefit be passed on to the industry or commercial sector?

We will see it in our next topic.

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