Member - Leviathan Dynamics

We require cooling in our everyday lives to preserve food, to have air-conditioning but also to allow better operations of most technological systems such IT servers, industrial machinery, industrial processes and so on. However, today's refrigeration (HVAC-R) systems are using intensively fluorinated gases as refrigerant. These gases contribute greatly to the greenhouse effect. 1kg of fluorinated gases leaking to the atmosphere is equivalent to 3,5 tons of CO2 in average. In a global scale, the contribution of fluorinated gases to global warming represents 1 billion tons of CO2 per year. The awareness of the impact of the F-gases on the global warming pushed most governments to regulate the use of these refrigerants with a shot-term phase-out plan by leading regions such as Europe and United States. Similar regulations exists all around the world following to the Kigali Agreement. Alternative refrigerants exist on the market. However, they can be toxic, inflammable or work under very high pressure, leading to very high constraints on the installation and the maintenance. Our idea is a simple one: instead of using hazardous fluid which are produced in a questionable way and which have harmful impact on the environment, we thought of using the most natural, abundant and neutral fluid in the world, water! Water is a formidable fluid with excellent thermodynamics properties. It can be used in a refrigeration system for all positive temperature application. Its use in a refrigeration system is very efficient and scalable with a gain of 30% in energy efficiency compared to conventional refrigeration system and a cooling power range from 2kW to 2MW. With positive temperature application being roughly 80% of the global cold demand, when our idea is implemented in a large scale, we could reduce the global greenhouse gas emission by 800 million tons of CO2 per year.