US 12,031,777 B2
Tube-in-tube ionic liquid heat exchanger employing a selectively permeable tube
Bamdad Bahar, Georgetown, DE (US); Jacob Zerby, Dover, DE (US); Harish Opadrishta, Dover, DE (US); Jason Woods, Boulder, CO (US); and Xiaobing Liu, Knoxville, TN (US)
Assigned to FFI IONIX IP, INC., Wilmington, DE (US)
Filed by Xergy, Inc., Harrington, DE (US)
Filed on Sep. 26, 2022, as Appl. No. 17/953,277.
Application 17/953,277 is a continuation of application No. 16/847,322, filed on Apr. 13, 2020, granted, now 11,454,458.
Claims priority of provisional application 62/833,513, filed on Apr. 12, 2019.
Prior Publication US 2023/0070246 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F28D 21/00 (2006.01); F25B 15/14 (2006.01); F25B 37/00 (2006.01); F28D 7/10 (2006.01); F28D 20/00 (2006.01)
CPC F28D 21/0015 (2013.01) [F25B 15/14 (2013.01); F25B 37/00 (2013.01); F28D 7/103 (2013.01); F28D 20/003 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tube-in-tube heat exchanger comprising:
a) a selectively permeable tube comprising a selectively permeable layer and having an inside surface and an outside surface;
b) a non-permeable tube having an inside surface and an outside surface;
c) a flow of refrigerant;
d) a flow of an ionic liquid;
e) a flow of heat transfer fluid that exchanges heat with the flow of ionic liquid;
wherein the flow of refrigerant is along one of the inside or outside surfaces of the selectively permeable tube and wherein the flow of ionic liquid is along the other of the inside surface and outside surface of the selectively permeable tube;
wherein the refrigerant is transferred through the selectively permeable tube into the flow of ionic liquid;
wherein heat is transferred between ionic liquid and the heat transfer fluid.