The primary useful vapour-compression refrigeration technique was developed by James Harrison, a British journalist who had emigrated to Australia. His 1856 patent was for a vapour-compression procedure employing ether, Liquor, or ammonia. He built a mechanical ice-making device in 1851 within the financial institutions on the Barwon River at Rocky https://supermarket-refrigeration53197.muzwiki.com/7157190/a_review_of_walk_in_freezer_repair