How do you improve the energy efficiency of your refrigerator?

Answer 1

Refrigerator Must Open if Used. Despite the model or a technology incorporated of a particular refrigerator, user has to open its doors to store or take out the goods. When the door remains open, warm and moist ambient air will flow in and will mix with the cold air inside the refrigerator. Cold moist air is heavier than ambient air so it drops down from the refrigerator cabin easily while hot ambient air goes in. Since you feel the cool and can see only the due forming, you think that cold air comes out. But actually what happens is hot air jumps first into it and pushes the cold air out from the refrigerator cabin.

Moisture transfer increases with the number of door openings. If the blower fan is turned on, the flow rate of cold air inside the refrigerator cabin will be accelerated, resulting an out flow to the atmosphere through its square area of the opening thus convective and radiative heat transfer increases. You loose 40% energy consumption of a refrigerator due to this.

Now I have invented a cost effective solution for this burning problem during my MSc research. Use my invention-"Door Screening System" (Has 20 year patent) which can save an average of 14% energy consumption of any refrigerator model.

Door Screen reduces the release of cold air from the refrigerator cabin area as well as entering of atmospheric warm air. This helps to maintain constant temperature inside the refrigerator / freezer cabins thus reduce the working frequency and duration of the compressor run time. Door Screening System reduces 7 to 13 kWhr of its energy consumption per month of an average domestic refrigerator.

you can save at least 7 kWh per month from 38 to 58 kWh monthly energy consumption of a domestic refrigerator by retrofitting Door Screen System.

Only in Sri Lanka, we had approximately 1.587 million domestic refrigerators by 2006/2007.Therefore it could be predicted that, minimum of 12,075,000 Units (kWh) of electricity could be saved per month from the national grid.

Since, 0.430 kg of CO2 is emitted to the atmosphere for the generation of each Unit / kWh of petroleum based electricity, it could be predicted that indirect emission of 5,192,000 kg of CO2 per month could be prevented if all refrigerators in Sri Lanka are retrofitted with Cold Air Retainer Door Screens.

I'm looking for an investor to develop this. Join me to make this world greener for future generations.

Contact the Inventor - Wing Commander Chandima Alwis RSP BAR, psc chandima@airforce.lk,chandimaalwis@Yahoo.com, Land Line-0094112796944, Mobile-0094714163698,