US 11,867,436 B2
Method for exchanging heat in vapor compression heat transfer systems and vapor compression heat transfer systems comprising intermediate heat exchangers with dual-row evaporators or condensers
Denis Clodic, Palaiseau (FR); Youssef Riachi, El Khenchara (LB); and Mary E Koban, Chadds Ford, PA (US)
Assigned to THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Filed by THE CHEMOURS COMPANY FC, LLC, Wilmington, DE (US)
Filed on Dec. 19, 2022, as Appl. No. 18/084,201.
Application 18/084,201 is a division of application No. 15/939,644, filed on Mar. 29, 2018, granted, now 11,624,534.
Application 15/939,644 is a continuation of application No. 13/207,557, filed on Aug. 11, 2011, abandoned.
Application 13/207,557 is a continuation in part of application No. 12/119,023, filed on May 12, 2008, abandoned.
Claims priority of provisional application 60/928,826, filed on May 11, 2007.
Claims priority of provisional application 60/988,562, filed on Nov. 16, 2007.
Claims priority of application No. PCT/US2007/025675 (WO), filed on Dec. 17, 2007.
Prior Publication US 2023/0235930 A1, Jul. 27, 2023
Int. Cl. F25B 40/02 (2006.01); F25B 40/00 (2006.01); F28D 1/053 (2006.01); F28D 1/04 (2006.01); F25B 49/02 (2006.01); F28D 21/00 (2006.01)
CPC F25B 40/02 (2013.01) [F25B 40/00 (2013.01); F25B 49/027 (2013.01); F28D 1/0452 (2013.01); F28D 1/05333 (2013.01); F28D 1/05383 (2013.01); F28D 1/05391 (2013.01); F25B 2339/046 (2013.01); F25B 2400/121 (2013.01); F28D 2021/007 (2013.01); F28D 2021/0071 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A vapor compression heat transfer system, comprising:
a. a closed circulation loop containing a fluoroolefin working fluid composition for circulation therein, said loop at least comprising, in fluid communication, a dual-row evaporator, a compressor, a dual row condenser, and an intermediate heat exchanger (IHX),
(i) said dual-row evaporator comprising, a front row and a back row,
(a) said front and back rows respectively having a first and a second set of discrete, serially connected tanks arranged to provide countercurrent flow along a first axis, a first tank of said first set has a feed end with an inlet, and a second tank of said second set has a discharge end with an outlet, and
(b) a collector arranged along a fourth axis orthogonal to said first axis and fluidly connecting a second tank of said first set with a first tank of said second tank to convey fluoroolefin working fluid from said front to said back row;
(ii) said dual-row condenser having:
(a) a back row having a first manifold for receiving and distributing the fluoroolefin working fluid to a plurality of channels for conveying the fluoroolefin working fluid to a downstream second manifold in only a first direction along a third axis, and
(b) a front row comprising first, second and third sections connected for serial flow, a first one said sections located at an upper portion of said front row providing flow only in a second direction opposite to said first direction, an intermediate section providing flow in only a third counter-current direction, and a distal subcooling section located at a lower portion of said front row providing flow in only said second direction and having an outlet for discharging subcooled fluoroolefin working fluid, wherein each section of said front row comprises a plurality of tubes; and
b) said IHX comprising:
i. a first tube having an inlet connected to said outlet of said subcooling section of said condenser, and an outlet connected to and in flow communication with said feed end inlet of said first tank, and
ii. a second tube having an inlet connected to said outlet at said discharge end, and an outlet connected to said compressor inlet, wherein said first and second tubes of said IHX are in thermal contact with one another.