Experimental and numerical investigation of a flat-plate solar collector

Álvarez, A.; Cabeza, O.; Muñiz, M. C.; Varela, Lucas

doi:10.1016/j.energy.2010.05.016

Cited by 105 publications

(36 citation statements)

References 15 publications

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“…PV is no good chance to develop due to its high costs. Photo-thermal is fairly popular in people's living by using solar water heater [13] . However solar water heater only plays a small part for living energy supply.…”

Section: The Purpose Of the Research On Solar Air Conditioning / Heatmentioning

confidence: 99%

Research and Application of Solar Energy Photovoltaic-Thermal Technology

Wu¹,

Ren²

2012

Solar Power

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Section: The Purpose Of the Research On Solar Air Conditioning / Heatmentioning

confidence: 99%

Research and Application of Solar Energy Photovoltaic-Thermal Technology

Wu¹,

Ren²

2012

Solar Power

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“…They observed that the maximum outlet water temperature decreased with the increase of water flow rate whereas the collector efficiency showed an opposite behavior. Alvarez et al [9] and Fan et al [10] presented experimentally, numerically and analytically thermal characteristics of conventional fin-and-tube solar collector and corrugated flow channel type of solar collector. It was observed that the efficiency of flat-plate solar collector with serpentine ducts was higher than that of parallel ducts.…”

Section: Introductionmentioning

confidence: 99%

Influence of nanofluids on the efficiency of Flat-Plate Solar Collectors (FPSC)

et al. 2017

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Abstract.A numerical investigation is performed using finite volume method to study the laminar heat transfer in a three-dimensional flat-plate solar collector using different nanofluids as working fluids. Three nanofluids with different types of nanoparticles (Ag, MWCNT and Al2O3 dispersed in water) with 1-2 wt% volume fractions are analyzed. A constant heat flux, equivalent to solar radiation absorbed by the collector, is applied at the top surface of the absorber plate. In this study, several parameters including boundary conditions (different volume flow rates, different fluid inlet temperatures and different solar irradiance at Skudai, Malaysia), different types of nanoparticles, and different solar collector tilt angles are investigated to identify their effects on the heat transfer performance of FPSC. The numerical results reveal that the three types of nanofluid enhance the thermal performance of solar collector compared to pure water and FPSC with Ag nanofluid has the best thermal performance enhancement. For all the cases, the collector efficiency increased with the increase of volume flow rate while fluid outlet temperature decreased. It is found that FPSC with tilt angle of 10° and fluid inlet temperature of 301.15 K has the best thermal performance.

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“…Several studies dedicated to improving the thermal performance of flat plate collectors have been done, some of these have focused on achieving better performance by a low temperature difference between plate and fluid [1] for example, Matrawy and Farkas [2] investigated parallel and serpentine tube arrangements in conventional sheet and tube absorber plates while Rommel and Moock [3] analytically studied solar absorbers with rectangular fluid ducts. Alvarez et al [4] investigated a flat-plate collector with a surface contact with the heat transport fluid. The microchannel absorber plate design proposed in this study offers the potential of high heat transfer coefficient (due to the small hydraulic diameters of the channels) [5] and a fairly uniform temperature distribution in the transverse direction.…”

Section: Introductionmentioning

confidence: 99%