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Solar-Powered Refrigeration (Amazing Tutorial!) Photo – backwoodshome.com
We found an in-depth article about solar powered refrigeration that will give you plenty of guidance and information to choose the right unit for your situation – the solar fridge is perfect for remote locations, RV’s and boats, or to use as a back up in power outages, which could save large amounts of food from spoiling. Hospitals often store medicines and vaccines in solar powered units to benefit from the safety of uninterrupted power. Jeff Yago shares his experience freely, includes links to solar fridge manufacturers and gives some great tips about charge controllers too!
The first refrigerating machine was invented in 1755 but they have only been in use in households for the last 100 years. The basic principle that makes them work is called “vapor compression”, using a contained cycle of compression and evaporation. As a liquid enters a low pressure environment it evaporates and draws heat from the surrounding area (to be circulated within the fridge) and then a compressor is used to compress the vapour into a liquid, giving off heat (outside the fridge).
Off-grid refrigeration is a challenge – an ordinary household fridge has a high power usage (300 – 500 watts) so you would need to look for a unit designed specifically for a 12 volt application to avoid having both a large solar array and battery bank.
Solar fridge technology is developing slowly – reliance on 12v batteries is standard but it’s very important to choose a model that has very good insulation and an efficient cooling system. Deep-cycle batteries are expensive but can withstand regular discharging and will last much longer than other types but it’s best to keep them more than half charged for the longest life.
Most solar fridges and freezers retail at between $600 and $3,000 – there is now quite a wide range available and the prices have reduced slightly over the last 10 years due to increased popularity. Jeff has a website with his company’s choice of current models and favours the Sundanzer for their good build quality and efficiency (they have developed from NASA technology for the International Space Station!).
I also like the idea of a water cooled fridge using a simple heat exchanger as a DIY project – of course this is only an option if you live somewhere with running water! Water could be piped in and would provide substantial cooling, which could be topped up with solar power to provide the correct temperature to store food safely. To find out more, the importance of insulation and some novel ideas for modifying your appliance to improve its efficiency, please check out the links below.
Ok here’s the link to the full tutorial: http://www.backwoodshome.com/articles2/yago102.html
Do You Recognize These 4 Home Security Massive Fails?
I Can't Help Showing This Off:
If you haven't heard of Claude Davis yet do yourself a huge favor and watch this video.
One of the smartest guys I ever had the pleasure of meeting, Claude set-up a unique prepping system that changed his life forever.
I already tried it myself and let me tell... you I was completely blown away... His surprising tactics could make your life easier and give you the peace of mind you deserve.
Don't just take my word for it... watch his short video and decide for yourself.
Most People Don't Have The Guts To Try This:
An amazing discovery in an abandoned house in Austin, Texas: A lost book of amazing survival knowledge, believed to have been long vanished to history, has been found in a dusty drawer in the house which belonged to a guy named Claude Davis.
Remember... back in those days, there was no electricity... no refrigerators... no law enforcement... and certainly no grocery store or supermarkets... Some of these exceptional skills are hundreds of years of old and they were learned the hard way by the early pioneers.
We've lost to history so much survival knowledge that we've become clueless compared to what our great grandfathers did or built on a daily basis to sustain their families.
Neighbors said that for the last couple of years Claude has tried to unearth and learn the forgotten ways of our great-grandparents and claimed to have found a secret of gargantuan proportions. A secret that he is about to reveal together with 3 old teachings that will change everything you think you know about preparedness:
More Off-Grid And Survival Resources:
What REALLY Happens When You Bury a Shipping Container? (Hint: It's A Bit Crazy...)
Shipping containers are all the rage - but if you are thinking about buying one, you MUST watch this video first:
There's a general belief that if you bury a shipping container you can create an awesome root cellar / storm shelter / survival bunker.
But is a shipping container strong enough to handle the pressure?
Watch the video to see what happens: