In this paper, simulation of a linear Fresnel rooftop mounted concentrating solar collector is presented. The system is modeled with the transient system (trnsys) simulation program using the typical meteorological year file containing the weather parameters of four different cities in Australia. Computational fluid dynamics (CFD) was used to determine the heat transfer mechanism in the microconcentrating (MCT) collector. Ray trace simulations using soltrace (NREL) were used to determine optical efficiency. Heat loss characteristics determined from CFD simulation were utilized in trnsys to assess the annual performance of the solar cooling system using an MCT collector. The effect of the different loads on the system performance was investigated, and from trnsys simulations, we found that the MCT collector achieves a minimum 60% energy saving for both domestic hot water usage and high temperature solar cooling and hot water applications.

References

References
1.
Juanicó
,
L.
,
2008
, “
A New Design of Roof-Integrated Water Solar Collector for Domestic Heating and Cooling
,”
Sol. Energy
,
82
(
6
), pp.
481
492
.10.1016/j.solener.2007.12.007
2.
Chemisana
,
D.
,
2013
, “
Building Integration of Concentrating Systems for Solar Cooling Applications
,”
Appl. Therm. Eng.
,
50
(
2
), pp.
1472
1479
.10.1016/j.applthermaleng.2011.12.005
3.
Petrakis
,
M.
,
Barakos
,
G.
, and
Kaplanis
,
S.
,
2009
, “
Roof Integrated Mini-Parabolic Solar Collectors Comparison Between Simulation and Experimental Results
,”
Open Fuels Energy Sci. J.
,
2
(
1
), pp.
71
81
.10.2174/1876973X01002010071
4.
Sultana
,
T.
,
Morrison
,
G. L.
,
Tanner
,
A.
,
Greaves
,
M.
,
Lievre
,
P. L.
, and
Rosengarten
,
G.
,
2010
, “
Heat Loss From Cavity Receiver for Solar Micro-Concentrating Collector
,”
48th Annual Conference of the Australian Solar Energy Society (AuSES)
,
Canberra, Australia
, Dec. 1–3.
5.
Hwang
,
Y.
,
2008
, “
Review of Solar Cooling Technologies
,”
HVAC/R Res.
,
14
(
3
), pp.
507
528
.10.1080/10789669.2008.10391022
6.
Henkel
,
E. T.
,
2005
, “
New Solar Thermal Energy Applications for Commercial, Industrial, and Government Facilities
,”
Energy Eng.
,
102
(
2
), pp.
39
58
.
7.
Lu
,
Z. S.
,
2013
, “
Study of a Novel Solar Adsorption Cooling System and a Solar Absorption Cooling System With New CPC Collectors
,”
Renewable Energy
,
50
(
0
), pp.
299
306
.10.1016/j.renene.2012.07.001
8.
Luo
,
H. L.
,
2006
, “
Experimental Investigation of a Solar Adsorption Chiller Used for Grain Depot Cooling
,”
Appl. Therm. Eng.
,
26
(
11–12
), pp.
1218
1225
.10.1016/j.applthermaleng.2005.10.036
9.
Luo
,
H. L.
,
2007
, “
An Efficient Solar-Powered Adsorption Chiller and Its Application in Low-Temperature Grain Storage
,”
Sol. Energy
,
81
(
5
), pp.
607
613
.10.1016/j.solener.2006.09.001
10.
Gee
,
R.
,
Cohen
,
G.
, and
Greenwood
,
K.
,
2003
, “
Operation and Preliminary Performance of the Duke Solar Power Roof: A Roof-Integrated Solar Cooling and Heating System
,”
International Solar Energy Conference, Solar Energy
, Kohala Coast, HI, Mar. 15–18, pp.
295
300
.
11.
Chromasun, Inc.
, San Jose, CA, see www.chromasun.com
12.
Wedelin
,
T.
,
2003
, “
SOLTRACE: A New Optical Modelling Tool for Concentrating Solar Optics
,”
International Solar Energy Conference, Solar Energy
, Kohala Coast, HI, Mar. 15–18, pp.
253
260
.
13.
Sultana
,
T.
,
Morrison
,
G. L.
,
Bhardwaj
,
S.
, and
Rosengarten
,
G.
,
2011
, “
Heat Loss Characteristics of a Roof Integrated Solar Micro-Concentrating Collector
,”
5th International Conference on Energy Sustainability
,
Washington DC
, Aug. 7–10, pp.
103
111
.
14.
Haberle
,
A.
,
Zahler
,
C.
,
Lerchenmüller
,
H.
,
Mertins
,
M.
,
Wittwer
,
C.
,
Trieb
,
F.
, and
Dersch
,
J.
,
2002
, “
The Solarmundo Line Focussing Fresnel Collector. Optical and Thermal Performance and Cost Calculations
,”
Proceedings of the International Symposium on Concentrated Solar Power and Chemical Energy Technologies, SolarPACES
,
Zürich
, Sep. 4–6, pp.
1
11
.
15.
Haberle
,
A.
,
Berger
,
M.
,
Luginsland
,
F.
,
Zahler
,
C.
,
Baitsch
,
M.
,
Henning
,
H.
, and
Rommel
,
M.
,
2006
, “
Linear Concentrating Fresnel Collector for Process Heat Applications
,”
Proceedings of 13th International Symposium on Concentrated Solar Power and Chemical Energy Technologies
,
Spain
, Jun. 20–23.
16.
Mills
,
D. R.
, and
Morrison
,
G. L.
,
2000
, “
Compact Linear Fresnel Reflector Solar Thermal Powerplants
,”
Sol. Energy
,
68
(
3
), pp.
263
283
.10.1016/S0038-092X(99)00068-7
17.
Sultana
,
T.
,
Morrison
,
G. L.
, and
Rosengarten
,
G.
,
2012
, “
Thermal Performance of a Novel Rooftop Solar Micro-Concentrating Collector
,”
Sol. Energy
,
86
(
7
), pp.
1992
2000
.10.1016/j.solener.2012.04.002
18.
Sultana
,
T.
,
Morrison
,
G. L.
, and
Rosengarten
,
G.
,
2011
, “
A Numerical and Experimental Study of a Novel Roof Inegrated Solar Micro-Concentrating Collector
,”
Australian Solar Energy Society Annual Conference (AuSES)
,
Sydney, Australia
, Nov. 29 – Dec. 2.
19.
Sultana
,
T.
,
Morrison
,
G. L.
, and
Rosengarten
,
G.
,
2011
, “
Thermal Performance of a Roof Integrated Solar Micro-Concentrating Collector
,” ISES Solar World Congress, Kassel, Germany, Aug. 28 – Sep. 2.
20.
Sultana
,
T.
,
Morrison
,
G. L.
,
Hoffman
,
M.
, and
Rosengarten
,
G.
,
2012
, “
Computational and Experimental Investigation of Internal Natural Convection in a Rooftop Mounted Linear Fresnel Collector
,”
23rd International Symposium on Transport Phenomena
,
Auckland, New Zealand
, Nov. 19–22.
21.
Klein
,
S. A.
, and
Duffie
,
J. A.
,
1994
, “
TRNSYS—A Transient System Simulation Program
,” Solar Energy Laboratory, University of Wisconsin, Madison.
22.
Morrison
,
G. L.
,
2004
, “
TRNAUS—TRNSYS Extensions for Solar Water Heating (STEL/1-2004)
,” School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney.
23.
Sultana
,
T.
,
Morrison
,
G. L.
,
Taylor
,
R.
, and
Rosengarten
,
G.
,
2012
, “
Performance of a Linear Fresnel Rooftop Mounted Concentrating Solar Collector
,”
50th Australian Solar Energy Society Annual Conference (AuSE)
,
Melbourne, Australia
, Dec. 6–7.
24.
AS/NZS4234
, Heated Water Systems—Calculation of Energy Consumption.
25.
Morrison
,
G. L.
, and
Litvak
,
A.
,
1985
, “
A Condensed Solar Radiation Data Base for Australia
,”
ISES(ANZ) Annual Conference, Selling Solar
,
Sydney
, pp.
50
57
.
26.
Florides
,
G. A.
,
Kalogirou
,
S. A.
,
Tassou
,
S. A.
, and
Wrobel
,
L. C.
,
2002
, “
Modelling and Simulation of an Absorption Solar Cooling System for Cyprus
,”
Sol. Energy
,
72
(
1
), pp.
43
51
.10.1016/S0038-092X(01)00081-0
You do not currently have access to this content.