	US 12,287,129 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 Nov. 17, 2023, as Appl. No. 18/512,520.
Application 18/084,201 is a division of application No. 15/939,644, filed on Mar. 29, 2018, granted, now 11,624,534, issued on Apr. 11, 2023.
Application 18/512,520 is a continuation of application No. 18/084,201, filed on Dec. 19, 2022, granted, now 11,867,436.
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 2024/0125524 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F25B 40/00 (2006.01); F25B 40/02 (2006.01); F25B 49/02 (2006.01); F28D 1/04 (2006.01); F28D 1/053 (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)]

13 Claims

1. A vapor compression heat transfer system, comprising:

a closed circulation loop comprising in fluid communication (a) an evaporator, (b) a compressor, (c) a dual row condenser, and (d) an intermediate heat exchanger (IHX) and containing therein a working fluid, the contained working fluid comprising,

i. a fluoroolefin working fluid selected from at least one at least one compound with 2 to 12 carbon atoms, and

ii. optionally one or more of:

1. a hydrofluorocarbon selected from one or more of HFC-32, HFC-134a, HFC-152a and HFC-227ea,

2. hydrocarbon,

3. carbon dioxide, or

4. CF₃I, and

wherein said evaporator (a) comprises dual rows of serially connected tanks, a first tank of one of said rows having a feed end with an inlet, and a second tank of said other rows having a discharge end with an outlet, and said rows of said dual row evaporator fluidly connected to one another through a collector to convey fluoroolefin working fluid from said inlet end to said outlet end through said evaporator, said dual row condenser (c) comprises,

(1) 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

(2) 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

said IHX (d) comprises 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 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.