Solar Energy 77 (2004) 311–318
A fresh solar run adsorption refrigerator
with top rated
Meunier posted a comparison of people three sorption
systems for solar air conditioning (Meunier, 1994). The solid–gas
system utilized in the present examine is adsorption.
The solar adsorption fridges have been designed mainly to become used in warm regions without electricity source. There is a great urgent want in the overall health sector (for
the preservation of drugs and vaccines). These software has the advantage of not really requiring virtually any energy aside from solar energy.
coeﬃcient of performance [–]
speciﬁc warmth [J kgÀ1 KÀ1 ]
global irradiance [W mÀ2 ]
global irradiation [J]
evaporation latent heat intended for water [J kgÀ1 ]
heat volume [J]
area [m2 ]
collector front side
solar heat source
thermal deficits (of the cabinet)
Guilleminot, 1986; Pralon Ferreira-Leite and Daguenet,
2000) using whether chemical reaction or perhaps adsorption,
adhere to an alternative pattern of heating/cooling, also
generally known as ‘intermittent', the time of which corresponds to the shifting of night and day.
Regarding performance, the highest ideals of COPSR
(0. 10–0. 12) had been obtained with the adsorption systems
zeolite & water (Grenier et ing., 1988) and activated carbon + methanol (Boubakri et al., 1992a, b; Pons and Grenier, 1987). Because methanol can simply evaporate at
temperatures beneath 0 °C, thus favouring the production
of ice, one of the most environmentally friendly refrigerant must
become water. Applying water, ice can be made within the
evaporator, acting being a ‘cold storage'. Both refrigerants, water or methanol, function at listed below atmospheric pressure and therefore need vacuum technology. The main aim of the present analyze is to get hold of
better performances than those reported above, with
what is, technically speaking, a simple machine. This
target seems realistically achievable with an adsorptive
machine, operated in a fully solar-powered twenty-four h circuit
with a ﬂat-plate solar extractor containing the adsorbent. Nevertheless , when talking about the work reported above,
the two eﬃciency of the solar extractor and that of the
adsorption thermodynamic cycle could be improved.
These kinds of requirements were crucial to the appearance of the
The laboratory of solar energy from the Engineering
institution of the Quarter de Vaud (EIVD, Yverdon-lesBains, Switzerland) has been developing adsorptive sun refrigerators as 1999. The ﬁrst systems built applied the
sponging pair of stimulated carbon + methanol. Pertaining to
reasons of reliability and respect for the environment,
this kind of pair have been abandoned in preference of a silicagel + drinking water pair.
The prototype defined and examined in this conventional paper
has been functioning since the summer time of 2k on the
web page of the EIVD. A thorough measurement system permits us to characterise it in a finish way. During the summer of 2001, a constant procedure of thermal weight in
the cold cupboard allowed all of us to observe the behavior of
the adsorption system over a ongoing period of 68
days. We certainly have highlighted the truly great inﬂuence of both
external temperature and daily irradiation upon the
daily coeﬃcient of functionality (COPSR ). Previously,
few articles had been interested in the analysis with the storage.
2 . Description of adsorption along with the infiltration cooling
Adsorption, also referred to as physisorption, is the
process through which molecules of a ﬂuid happen to be ﬁxed for the
walls of your solid materials. The adsorbed molecules experience no chemical reaction but just lose energy when being ﬁxed: infiltration, the phase change from ﬂuid to
adsorbate (adsorbed phase) is exothermic. Moreover
this procedure is reversible. In the next, we is going to focus
References: Boubakri, A., Arsalane, Meters., Yous, B., Ali-Moussa, T., Pons,
M., Meunier, N., Guilleminot, T. J., 1992a
Boubakri, A., Arsalane, M., Yous, N., Ali-Moussa, D., Pons,
Meters., Meunier, F., Guilleminot, L. J., 1992b
Buchter, Farreneheit., Hildbrand, C., Dind, Ph level., Pons, M., 2001.
Buchter, F., Dind, Ph., Pons, M., the year 2003. An experimental solarpowered adsorptive refrigerator tested in Burkina-Faso.
Chinnappa, L. C. Versus., 1962. Functionality of an sporadic
refrigerator controlled by a ﬂat-plate collector
Critoph, R. E., 1994. A great ammonia co2 solar refrigerator for
Critoph, R. Elizabeth., Tamainot-Telto, Unces., Munyebvu, E., 1997. Photo voltaic
Erhard, A., Spindler, E., Hahne, At the., 1998. Test and simulation
of a solar run sorption cooling down machine
Grenier, Ph., Guilleminot, J. M., Meunier, Farreneheit., Pons, M., 1988.
Headley, O. StC., Kothdiwala, A. F., McDoom, I. A., 1994.
Liu, Z., Lu, Y., Zhao, J., 98. Zeolite-active carbon dioxide compound
adsorbent and its use in adsorption sun cooling tube
Marmottant, B., Mhimid, A., El Golli, S., Grenier, Ph., 1992.
Meunier, N., 1994. Sorption solar cooling. Renewable Energy five
Mhiri, N., El Golli, S., mil novecentos e noventa e seis. Etude d'un r frig rateur solaire
Pons, M., Guilleminot, J. M., 1986. Style of an fresh
solar-powered, solid-adsorption ice machine
Pons, Meters., Grenier, Ph level., 1987. Experimental data on the solarpowered ice maker employing activated co2 and methanol
Pralon Ferreira-Leite, A., Daguenet, M., 2k. Performance of
a new sturdy adsorption ice-maker with solar power regeneration
Spinner, B., Goetz, V., Mazet, N., Mauran, S., Stitou, D., 1999.
Worsøe-Schmidt, P., 1983. Photo voltaic refrigeration pertaining to developing
countries using a sturdy absorption routine
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