Switch off the fridge for three hours from 06.30 pm . this will not harm the food stored and will save upto 15percent in consumption.
First of all let me explain the importance of the issue and the benefit to the nation.
The country is facing acute power shortage during the evening hours which lead to load shedding in almost all the areas of the country. It is creating difficulties to students, housewives and the public at large. I was suggesting an easy solution to the stalemate with the co operation of the public.
Moreover the peak power costs much to the individual electric supply agencies and hence this solution will reduce the financial burden on them and there by tend to reduce the tariff.
The friends who made the comments unfortunately overlooked the greater national interest and concentrated on the difficulty to individuals.
Anyhow scientific studies and close examination of the technical issues have shown that the concerns raised by my friends are baseless.
The research wing of Kerala State Electricity Board has made detailed research on the subject. It had discussions with experts of different areas including microbiologists.
The food materials stored in fridge undergo a cooling process which involves much time depending on the size of the material. At first the surface gets cooled and then it gradually goes to its core. Fish and meat of normal size takes 5 to 7 hours for this. Even if these materials are exposed to atmosphere it takes at least three hours to lose cooling to the core and will take much more time for the bacterial action leading to decay to start.
In the case of switching off the fridge for three hours is much safer. By three hours the temperature rise has been observed to be less than 2 degrees. Hence I can guarantee that nothing will happen to the food materials. On the other hand this time will be utilized by the fridge to defrost the cooling tubes and it will enhance the cooling capacity of the fridge thereby helping to keep the food materials safe for more time.
As the phrase “switching of the fridge for three hours during the peak hours” has to be repeated several times let us use the term “Save-switch” hereafter to denote it, as we had done during the research project.
Now let us see how consumption is reduced by save switching. During peak hours the voltage and frequency of the supply will go below the rated values. This will seriously affect the efficiency of the compressor motor of the fridge. Thus the amount of cooling can be done at off peak hours with smaller amount of electricity. We have observed that a saving up to 15 percent can be achieved in the total consumption of the fridge through save switching.
At lower voltage and frequency the motor current will be higher and it will reduce the life of the motor. Save switch avoids this and will increase the life of the fridge.
Automatic defrosting uses heaters to defrost causing double wastage of precious electricity on for heating and the to remove that additional heat. save switching avoids the need for automatic defrosting thus again helps saving electricity.
Stabliser used with the fridge makes several switching during the peak load because of drastic variations in the supply voltage. This cause inducing of high voltages in the inductive circuits of the motor and agin it affects the life of the motor which can also be avoided by save switch.
Thus we can see that save switch helps the country to face the power crisis and helps the consumer through saving in consumption and increased life of the fridge.
I am ready to clear any more doubts on this.