Page 38 - Defrosting for Air Source Heat Pump

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heat
and
about
mode
than
more
36.4%
65%
the
regeneration
by
heating
less
to
by
method,
by
improved
due
shortened
was
reduced
during
15%
consumption
traditional
50%
the
by
was
was
PCM-TES
was
reduced
but
by
capacity
duration
duration
3°C,
COP
the
energy
was
at
to
Conclusions
the
the
heating
than
Defrosting
Compared
efficiency
defrosting
and
in
total
27.9%
stored
3°C
10%
The
the
Polyethylene
Refrigerant
Refrigerant
transfer
glycol
Heat
fluid
tube
tube 71.4%– by shortened was duration Defrosting Refrigerant consumption energy defrosting and 80.5%, 65.1%–85.2% by reduced 60%, by reduced was duration Defrosting Refrigerant temperature and pressure suction compressor MPa and 13.6°C, respectively, increased by 0.28 1.8 about by increa
type and tube tube tube tube and
TES Shell Finned Finned Finned Finned Shell
(2000–2017) capric lauric capric lauric
RCD type mol% with mol% CaCl 2 6H 2 O mol% with mol% Polyethylene CaCl 2 6H 2 O
based PCM Water 65 acid 35 acid 65 acid 35 acid glycol
PCM-TES [99] [98] [14] [100] [27] [96]
of Author Qu al. et Dong al. et Wang al et Zhang al. et Daikin Qu al. et
Studies
2.7 Year 2017 2015 2015 2014 2014 2012
Table No. 1 2 3 4 5 6