Belyanovskaya E.
Candidate of Technical Sciences, Associate Professor, State Higher Education
Institution ‘Ukrainian State University of Chemical Engineering’, Dnipro, Ukraine
Sukhyy K.
Doctor of Technical Sciences, Professor, State Higher Education Institution
‘Ukrainian State University of Chemical Engineering’, Dnipro, Ukraine
Kolomiyets E.
Candidate of Technical Sciences, State Higher Education Institution ‘Ukrainian
State University of Chemical Engineering’, Dnipro, Ukraine
Gubynskyi M.
Doctor of Technical Sciences, Professor, National Academy of Metallurgy,
Dnipro, Ukraine
OPERATING CHARACTERISTICS OF ADSORPTIVE HEAT
CONVERSION UNITS IN HEAT SUPPLY SYSTEM
Introduction.
At present, when human society has to deal with consequences of
unrestrained growth of world prices for primary fuels and rates of heat-carrying agent,
application of alternative energy sources in heat supply systems appears to be one of
the crucial engineering problems. Nevertheless, commercialisation of such systems is
strongly restrained with peculiarities of alternative energy sources such as variability
of heat energy stream during a day or a season. So, heat energy storage becomes of
crucial importance. Primarily, heat energy storage in modern heat supply systems are
based on sensible heat materials. More promising are phase-change heat storage
devices. However, their wide introduction is strictly limited with their high corrosion
activity and requirements to thermal energy potential during regeneration. At that time
adsorbent materials are considered to be perspective for the absorption, accumulation
and conversion of heat energy [1, 2]. Adsorptive heat storage devices allow to combine
the storage of thermal energy on the basis of reverse adsorption – desorption processes
with sensible-heat and phase-transition mechanism. However, units based on
traditional adsorbents such as silica gel and zeolite appeared to be limited with energy
storage density and temperature range. Composite adsorbents ‘salt inside porous
matrix’ can be considered as promising in terms of low regeneration temperature, high
adsorptive capacity and as a consequence high heat energy storage density.
Furthermore, traditional computational procedures of heat supply systems with
heat accumulators are mainly focused on sensible heat units [3]. Simulation of
adsorptive heat storage devices is limited with adsorption or desorption stages [4, 5].
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