Abstract

Low thermal conductivity is the main drawback of using paraffin wax as a latent heat thermal storage material in the solar air heater (SAH). In order to overcome this drawback, an absorber plate with extended surfaces through the paraffin wax was used. Two extended surface absorbers were used: a flat plate attached with downward fins and a V-corrugated plate. For the purpose of comparison, the SAH integrated with paraffin wax was tested using three proposed types of the absorber plate: flat, downward finned, and V-corrugated plates. The results showed superiority of the downward finned plate during the day. But the V-corrugated SAH remains the best choice for the applications in which the hot air is mostly needed during night as it is continuously operated for 7 h after sunset with the outlet air temperature of 8–11 °C more than the ambient air temperature.

References

1.
El-Sebaii
,
A. A.
, and
Shalaby
,
S. M.
,
2013
, “
Experimental Investigation of an Indirect-Mode Forced Convection Solar Dryer for Drying Thymus and Mint
,”
Energy Convers. Manage.
,
74
, pp.
109
116
. 10.1016/j.enconman.2013.05.006
2.
El-Sebaii
,
A. A.
, and
Shalaby
,
S. M.
,
2017
, “
Experimental Investigation of Drying Thymus Cut Leaves in Indirect Solar Dryer With Phase Change Material
,”
ASME J. Sol. Energy Eng.
,
139
(
6
), p.
061011
. 10.1115/1.4037816
3.
Shalaby
,
S. M.
, and
Bek
,
M. A.
,
2014
, “
Experimental Investigation of a Novel Indirect Solar Dryer Implementing PCM as Energy Storage Medium
,”
Energy Convers. Manage.
,
83
, pp.
1
8
. 10.1016/j.enconman.2014.03.043
4.
Shalaby
,
S. M.
,
Khalil
,
A.
,
Kabeel
,
A. E.
, and
Zayed
,
M. E.
,
2018
, “
Improvement of the Thermal Performance of the V-Corrugated Plate Solar Air Heater With PCM by Using Insulated Upper Cover During Night
,”
2018 IEEE International Conference on Smart Energy Grid Engineering (SEGE)
,
UOIT, Oshawa, Canada
,
Aug. 12–15
, pp.
346
350
.
5.
El-Sebaii
,
A. A.
,
Aboul-Enein
,
S.
,
Ramadan
,
M. R. I.
,
Shalaby
,
S. M.
, and
Moharram
,
B. M.
,
2011
, “
Thermal Performance Investigation of Double Pass-Finned Plate Solar Air Heater
,”
Appl. Energy
,
88
(
5
), pp.
1727
1739
. 10.1016/j.apenergy.2010.11.017
6.
Kabeel
,
A. E.
,
Khalil
,
A.
,
Shalaby
,
S. M.
, and
Zayed
,
M. E.
,
2016
, “
Investigation of the Thermal Performances of Flat, Finned, and v-Corrugated Plate Solar Air Heaters
,”
ASME J. Sol. Energy Eng.
,
138
(
5
), p.
051004
. 10.1115/1.4034027
7.
El-Sebaii
,
A. A.
,
Aboul-Enein
,
S.
,
Ramadan
,
M. R. I.
,
Shalaby
,
S. M.
, and
Moharram
,
B. M.
,
2011
, “
Investigation of Thermal Performance of-Double Pass-Flat and v-Corrugated Plate Solar air Heaters
,”
Energy
,
36
(
2
), pp.
1076
1086
. 10.1016/j.energy.2010.11.042
8.
El-Sebaii
,
A. A.
,
Aboul-Enein
,
S.
,
Ramadan
,
M. R. I.
, and
El-Bialy
,
E.
,
2007
, “
Year Round Performance of Double Pass Solar air Heater With Packed bed
,”
Energy Convers. Manage.
,
48
(
3
), pp.
990
1003
. 10.1016/j.enconman.2006.08.010
9.
El-Sebaii
,
A. A.
,
Aboul-Enein
,
S.
,
Ramadan
,
M. R. I.
, and
El-Gohary
,
H. G.
,
2002
, “
Experimental Investigation of an Indirect Type Natural Convection Solar Dryer
,”
Energy Convers. Manage.
,
43
(
16
), pp.
2251
2266
. 10.1016/S0196-8904(01)00152-2
10.
Shalaby
,
S. M.
,
Bek
,
M. A.
, and
El-Sebaii
,
A. A.
,
2014
, “
Solar Dryers With PCM as Energy Storage Medium: A Review
,”
Renewable Sustainable Energy Rev.
,
33
, pp.
110
116
. 10.1016/j.rser.2014.01.073
11.
Fath
,
H. E. S.
,
1995
, “
Thermal Performance of a Simple Design Solar Air Heater With Built-in Thermal Energy Storage System
,”
Renewable Energy
,
6
(
8
), pp.
1033
1039
. 10.1016/0960-1481(94)00085-6
12.
Fath
,
H. E. S.
,
1995
, “
Transient Analysis of Thermosyphon Solar Air Heater With Built-In Latent Heat Thermal Energy Storage System
,”
Renewable Energy
,
6
(
2
), pp.
119
124
. 10.1016/0960-1481(94)00050-G
13.
Bouadila
,
S.
,
Lazaar
,
M.
,
Skouri
,
S.
,
Kooli
,
S.
, and
Farhat
,
A.
,
2014
, “
Energy and Exergy Analysis of a New Solar Air Heater With Latent Storage Energy
,”
Int. J. Hydrogen Energy
,
39
(
27
), pp.
15266
15274
. 10.1016/j.ijhydene.2014.04.074
14.
Arfaoui
,
N.
,
Bouadila
,
S.
, and
Guizani
,
A.
,
2017
, “
A Highly Efficient Solution of off-Sunshine Solar Air Heating Using Two Packed Beds of Latent Storage Energy
,”
Sol. Energy
,
155
, pp.
1243
1253
. 10.1016/j.solener.2017.07.075
15.
El Khadraoui
,
A.
,
Bouadila
,
S.
,
Kooli
,
S.
,
Guizani
,
A.
, and
Farhat
,
A.
,
2016
, “
Solar Air Heater With Phase Change Material: An Energy Analysis and a Comparative Study
,”
Appl. Therm. Eng.
,
107
, pp.
1057
1064
. 10.1016/j.applthermaleng.2016.07.004
16.
Moradi
,
R.
,
Kianifar
,
A.
, and
Wongwises
,
S.
,
2017
, “
Optimization of a Solar Air Heater With Phase Change Materials: Experimental and Numerical Study
,”
Exp. Therm. Fluid. Sci.
,
89
, pp.
41
49
. 10.1016/j.expthermflusci.2017.07.011
17.
Kabeel
,
A. E.
,
Khalil
,
A.
,
Shalaby
,
S. M.
, and
Zayed
,
M. E.
,
2016
, “
Experimental Investigation of Thermal Performance of Flat and v-Corrugated Plate Solar Air Heaters With and Without PCM as Thermal Energy Storage
,”
Energy Convers. Manage.
,
113
, pp.
264
272
. 10.1016/j.enconman.2016.01.068
18.
Kabeel
,
A. E.
,
Khalil
,
A.
,
Shalaby
,
S. M.
, and
Zayed
,
M. E.
,
2017
, “
Improvement of Thermal Performance of the Finned Plate Solar Air Heater by Using Latent Heat Thermal Storage
,”
Appl. Therm. Eng.
,
123
, pp.
546
553
. 10.1016/j.applthermaleng.2017.05.126
19.
Ghiami
,
A.
, and
Ghiami
,
S.
,
2018
, “
Comparative Study Based on Energy and Exergy Analyses of a Baffled Solar Air Heater With Latent Storage Collector
,”
Appl. Therm. Eng.
,
133
, pp.
797
808
. 10.1016/j.applthermaleng.2017.11.111
20.
Shalaby
,
S. M.
,
Abosheiasha
,
H. F.
,
Assar
,
S. T.
, and
Kabeel
,
A. E.
,
2018
, “
Improvement of Thermal Properties of Paraffin Wax as Latent Heat Storage Material With Direct Solar Desalination Systems by Using Aluminum Oxide Nanoparticles
,”
Twenty-First International Water Technology Conference, IWTC21
,
Ismailia
,
June 28–30
, pp.
339
345
.
21.
Gao
,
W.
,
Lin
,
W.
,
Liu
,
T.
, and
Xia
,
C.
,
2007
, “
Analytical and Experimental Studies on the Thermal Performance of Cross-Corrugated and Flat-Plate Solar Air Heaters
,”
Appl. Energy
,
84
(
4
), pp.
425
441
. 10.1016/j.apenergy.2006.02.005
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