This conclusion is confirmed by influence of water mass on efficiency coefficient
(Fig. 6). Maximal magnitudes of efficiency coefficients are observed when mass of
water corresponds with limit adsorption (curve 1). As water mass conforms with
sesquialteral value of limit adsorption, efficiency factors are decreased (curve 3). When
mass of water coincided to amount delivered with humid air to inlet of the adsorbent
layer, efficiency coefficients are intermediate in between considered options (curve 2).
At that, efficiency coefficient-vs.-air-vapor flow rate curves achieve plateau. This form
promotes more easy operation and maintaining of heat storage unit.
Heat storage unit was tested for heating the premise with a floor area 100 m
2
during period from 1 of November 2016 to 28 of February 2017.
a
b
c
Figure 6. Efficiency coefficient-vs.-air-vapor flow rate (absolute humidity: а –
0,04; b – 0,06; c – 0,08 g/m
3
) for close-type heat storage device: 1 –mass of water
corresponds with limit adsorption, 2 – mass of water delivered with humid air to
adsorbent layer; 3 – mass of water corresponds with 1.5A
max
.
- 512 -