Both СОР
c
and СОР
s
(b) of heat pump based on composite ‘silica gel – Na
2
SO
4
’
are stated to be of the same magnitude during test period. Insignificant variation of
СОР
s
(b) results from change of daily value of solar radiation.
CONCLUSION
Operational parameters of close type devices or units for heat energy converters
were studied. The main factors affected efficiency coefficients of close-type heat
storage units were considered. The area of improvement of operation of heat storage
devices is suggested. Optimal operating parameters of exploiting processes for heat
storage devices based on composite sorbent ‘silica gel – sodium sulphate’ are stated to
be vapor-air flow rate speed of 0.2 – 0.6 m/s and relative humidity of 40 - 60% at
heights of adsorbent layer 0.25 – 0.5 m. Optimal water mass supply is stated to be
coincide with amount delivered with humid air to inlet of the adsorbent layer.
Design of adsorptive heat pump based composite water adsorbent ‘silica gel –
sodium sulphate’ is developed. Novel data for temperature variation in various pump
units during its operational run are given. Coefficient of energy performance of
adsorptive heat pump based on composite ‘silica gel – Na
2
SO
4
’ is stated to be 2.084.
Power consumption is shown to be decreasing in 2,4 - 90 times versus
decentralized heating systems based on solid fuel, gas and electric boilers when open-
type adsorptive heat storage device used.
Perspectives of application of adsorptive heat conversion units are shown for heat
supply systems.
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