### How do we calculate power consumption for ac:

Usually, ac are purchased/advertised as
3 or star 1 ton or 1.5 ton ac. now lets
calculate power consumption .

The representation 1 ton=12,000 BTU

where BTU is British thermal unit –it is
amount of power required to melt one pound of solid ice to liquid water.

1 BTU approx..to 1 watt

Lets calculate of 1 hour

Thus an 1 ton ac consumes 1.5 kw per hour

If we use it for 6 hour daily then 1*6=6kwh

1kwh=1 unit.

To calculate total number of unit utilized
by an AC(using 8hr daily) is obtained by

1*8*30=
240 units

Usually 1unit may be of 3 rs/- or 6rs/-,if
it is a commercial line it is 9rs/-.

Multiply the amount of units by 1 unit
amount .

Thus the amount obtained is the bill for
that particular AC.

### Methods for controlling power consumed by AC:

1)use of inverter ac-these ac maintain
constant temperature in the room.once the temperature reaches to required
level it reduces the speed of compressor
fan .which decreases max amount of power consumed.

2)clean the ac filters regularly at least
twice a month.by cleaning ac filter it increase filtering of air which
increases fast cooling.

3)use of heavy folded curtains and thermal
insulated materials for windows and doors.

4)switching off fan while ac is on –when we
switch on the fan it pushes hot air down where ac pull in air from top of it,
max hot is not taken at time ,thus increases in time for cooling which in turn
increases power consumption.

5) ac
cooling capacity depends on the environmental
condition of that area .where there
are high surrounding temperature
,cooling of collected and compresses hot air
by surrounding air is reduced thus time taken to cool the room
increases, thus power

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