Thermosyphon coil arrangement for heat pump outdoor unit
Patent
·
OSTI ID:865013
- Churchill, PA
For a heat pump, the outdoor unit is provided with a coil and a refrigerant flow arrangement therefor which is such that in the heating mode of operation of the heat pump they operate in a thermosyphon fashion. The coil 32 has a feed portion 30 and an exit portion 34 leading to a separator drum 36 from which liquid refrigerant is returned through downcomer line 42 for recirculation to the feed portion. The coil is tilted upwardly from entry to exit by the angle alpha to enhance the clearance of the two phases of refrigerant from each other in the heating mode of operation. There is no thermosyphon function in the cooling mode of operation.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- Westinghouse Electric Corp. (Pittsburgh, PA)
- Patent Number(s):
- US 4449377
- OSTI ID:
- 865013
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/62/
30
32
34
36
42
alpha
angle
arrangement
clearance
coil
coil arrangement
cooling
downcomer
drum
enhance
entry
exit
fashion
feed
flow
function
heat
heat pump
heating
heating mode
leading
line
liquid
liquid refrigerant
mode
operate
operation
outdoor
outdoor unit
phases
portion
provided
pump
recirculation
refrigerant
refrigerant flow
returned
separator
thermosyphon
tilted
unit
upwardly
30
32
34
36
42
alpha
angle
arrangement
clearance
coil
coil arrangement
cooling
downcomer
drum
enhance
entry
exit
fashion
feed
flow
function
heat
heat pump
heating
heating mode
leading
line
liquid
liquid refrigerant
mode
operate
operation
outdoor
outdoor unit
phases
portion
provided
pump
recirculation
refrigerant
refrigerant flow
returned
separator
thermosyphon
tilted
unit
upwardly