Page 17 - Defrosting for Air Source Heat Pump

14
3°C,
regenerator can meet the needs of indoor thermal comfort when the
decreased by 6.7% when RH was increased from 75% to 85% at 0°
ambient
was
coefficient
the
and
the
COP
at
0°C,
when
min
of
The
content
3°C,
36
mass-transfer
56.2%
10°Cto0°C.
34,
of
moisture
32,
by
temperatures
RH
for
increased
70%
overall
frost-free
and
from
and
temperature,
COP
average
ambient
0°C
increased
evaporator
average
above
the
85%
the
affects
velocity,
was
was
at
80%,
the
of
mode
temperature
RH
air
keep
of
desiccant
ambient
an
air
heating
RH
can
with
The
At
C
It
suppression (2000–2017) units ASHP for Results 29, were R134a and R407C, R22, using when durations Frost-free of temperature ambient given the At respectively. min, 35 and 34, performance of coefficient average the 85%, of RH and 10°C the using than higher 8.6% 3.3, was R134a
chloride
frost used gel) solution) gel) gel)
for (silica desiccant (membrane-based, (silica (silica (lithium
desiccants Desiccant Solid Liquid chloride Solid Solid Liquid solution)
liquid
and Type a N N N E E & N
solid [17]
using Author [15] al. and [16] al. [14] al. [18] al.
on Wang et Su Zhang Wang et Wang et Zhang et
Studies
2.1 Year 2017 2017 2017 2015 2015
Table No. 1 2 3 4 5