DIY Absorption Refrigerator Uses Fire and Calcium Chloride to Cool Without a Compressor

By Kaif Shaikh · Interesting Engineering · 2026-10-20

According to Interesting Engineering, a new prototype developed by Greenhill Forge utilizes heat and road salt to drive a refrigeration cycle. This experimental setup achieves cooling by manipulating water vapor pressure through an absorption process, successfully dropping intern

According to Interesting Engineering, a new prototype developed by Greenhill Forge utilizes heat and road salt to drive a refrigeration cycle. This experimental setup achieves cooling by manipulating water vapor pressure through an absorption process, successfully dropping intern