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Performance evaluation and comparison of a novel “retro-fit” heat exchanger and a conventional solar water heater with a single coiled heat exchanger
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10.1063/1.3687940
/content/aip/journal/jrse/4/2/10.1063/1.3687940
http://aip.metastore.ingenta.com/content/aip/journal/jrse/4/2/10.1063/1.3687940
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of the Willis Solasyphon.

Image of FIG. 2.
FIG. 2.

External connection of a Willis Solasyphon to a single coil HWC.

Image of FIG. 3.
FIG. 3.

Experimental test facility.

Image of FIG. 4.
FIG. 4.

Schematic test detail of the outdoor experimental facility.

Image of FIG. 5.
FIG. 5.

New state of the art solar simulator in operation.

Image of FIG. 6.
FIG. 6.

Schematic detail of experimental test facility of pressurised water heat exchanger loop.

Image of FIG. 7.
FIG. 7.

Experimental test facility of pressurised water heat exchanger loop in-front of the solar simulator with collector to be tested.

Image of FIG. 8.
FIG. 8.

Schematic details of an Opaque cover covering collector aperture and showing the position of the pyranometers before and during the test.

Image of FIG. 9.
FIG. 9.

Water temperature profile in the HWC for the Solasyphon heated system over a typical collection day.

Image of FIG. 10.
FIG. 10.

Water temperature profile in the HWC for the single coil heated system over a typical collection day.

Image of FIG. 11.
FIG. 11.

Heat gain at the upper portion of the storage cylinder.

Image of FIG. 12.
FIG. 12.

Heat gain in the complete storage cylinder.

Image of FIG. 13.
FIG. 13.

Water temperature profile with pre-set inlet and outlet temperatures of 21°C across the DSVCPC collector with a heat exchanger over a typical collection day.

Image of FIG. 14.
FIG. 14.

Water temperature profile with pre-set inlet and outlet temperatures of 45°C across the DSVCPC collector with a heat exchanger over a typical collection day.

Image of FIG. 15.
FIG. 15.

Water temperature profile with pre-set inlet and outlet temperatures of 70°C across the DSVCPC collector with a heat exchanger over a typical collection day.

Image of FIG. 16.
FIG. 16.

Water temperature profile with pre-set inlet and outlet temperatures of 80°C across the DSVCPC collector without a heat exchanger over a typical collection day.

Image of FIG. 17.
FIG. 17.

Collection efficiency plots and best fit linear characterisation curves for DSVCPC collector with a heat exchanger based on aperture area over a typical collection day with solar radiation perpendicular to the collector aperture.

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/content/aip/journal/jrse/4/2/10.1063/1.3687940
2012-03-13
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Performance evaluation and comparison of a novel “retro-fit” heat exchanger and a conventional solar water heater with a single coiled heat exchanger
http://aip.metastore.ingenta.com/content/aip/journal/jrse/4/2/10.1063/1.3687940
10.1063/1.3687940
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