Using Carbon Dioxide From A Direct Air Capture System As A Low Global Warming Car And Industrial Refrigerant
An apparatus includes a captured carbon dioxide input. The captured carbon dioxide input is coupled to receive captured carbon dioxide from a direct air capture system. The apparatus uses the captured carbon dioxide as a low global warming refrigerant to provide cooling functionality in automotive, commercial, and industrial applications, or other operations involving low global warming refrigerants. In various embodiments, the apparatus is a refrigeration apparatus or a heat pump apparatus. Low global warming carbon dioxide refrigerant is natural, non-toxic, non-flammable, and abundant when obtained from a direct air capture system. Moreover, carbon dioxide refrigerant has a high heat transfer coefficient and has a global warming potential (GWP) of one. Carbon dioxide refrigerant is a more sustainable and efficient coolant option than common refrigerants, such as R22, R152, R404a, and R1234yf refrigerants.
1 - 27 . (canceled)
28 . A system comprising:
a captured carbon dioxide input coupled to receive captured carbon dioxide from a direct air capture system; and
means for using the direct air capture carbon dioxide as a low global warming refrigerant to provide heating.
29 . The system of claim 28 , wherein the means is a heat pump apparatus.
30 . The system of claim 28 , wherein a purity level of the captured carbon dioxide is between a range selected from the group consisting of: 91% and 100%, 95% and 100%, and 99% and 100%.
31 . A system comprising:
a direct air capture system;
a multistage compression system that transforms carbon dioxide gas into sub and supercritical carbon dioxide fluid; and
a refrigerant system using the direct air capture carbon dioxide as a low global warming refrigerant.
32 . The system of claim 31 , wherein carbon dioxide is compressed in multiple stages to serve varied temperature requirements throughout mobile and commercial low global warming refrigeration applications.
33 . The method of claim 31 , wherein additional multi-ejector system designs are employed to control coolant flow, optimize efficiency, and relieve the load on the main compressor, thus allowing the system to operate in extreme weather conditions.
34 . A system comprising:
a direct air capture system;
a multistage compression system that transforms carbon dioxide gas into sub and supercritical carbon dioxide fluid; and
a heat pump using direct air captured carbon dioxide as a low global warming fluid.