Not only is the fridge solar powered, it can also be built from household materials - making it ideal for the Third World.
Cummins, 21, came up with the idea while working on a school project in
her grandfather's potting shed. The fridge is now improving the lives
of thousands of poverty-stricken Africans.
Emily Cummins holds the portable eco-fridge. It can keep perishable goods, such as milk or meat, cool for days at a temperature of around 6C
And Miss Cummins hopes to patent a more
sophisticated portable model for use in transporting medical supplies
around hot countries.
From the age of four, when she was
given a hammer as a gift, Miss Cummins has spent much of her spare time
making things out of ordinary materials.
She has won awards
for a toothpaste squeezer for arthritis sufferers and for a
water-carrying device, again for Third World use.
Emily with her grandfather Peter Harrison, 78, in his potting shed where she created the fridge
'sustainable' fridge works through evaporation and can be used to keep
perishable goods such as milk and meat cool for days.
Without using any power, temperatures stay at around 6c.
fridge comprises two cylinders - one inside the other. The inner
cylinder is made from metal but the outer cylinder can be made from
anything to hand, including wood and plastic.
Miss Cummins, from Keighley, West Yorkshire, said: 'A fridge is something that people can't seem to live without.
wanted to keep it really simple and so I set about researching how we
cooled things years ago. The simplest method of cooling something could
be seen when you look at how we cool biologically - through sweating
'That idea led me to the design and the fridge was born.'
After her A-levels she spent five months of her gap year
in Africa, perfecting and demonstrating her product. In Namibia she
became known as 'The Fridge Lady'. Miss Cummins returned to the UK to
start a business management course at Leeds University.
She had been refused a place on an engineering course because, to her dismay, she didn't have the correct qualifications.
Last year she met the Queen at Buckingham Palace after being invited to a prestigious women in business event.