Exergy analysis of integrated photovoltaic thermal solar water heater under constant flow rate and constant collection temperature modes

Tiwari, Arvind; Dubey, Swapnil; Sandhu, Gurvisha; Sodha, M. S.; Anwar, Shahid

doi:10.1016/j.apenergy.2009.04.004

Cited by 151 publications

(57 citation statements)

References 19 publications

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“…Joshi et al [118] have also evaluated the effect of fill factor. Tiwari et al [119] have performed the exergy analysis of integrated photovoltaic thermal solar water heater under constant flow rate and constant collection temperature modes. It was observed that the daily overall thermal efficiency of IPVTS system increases with increase constant flow rate and decrease with increase of constant collection temperature Fig.…”

Section: Exergy Efficiencymentioning

confidence: 99%

Photovoltaic modules and their applications: A review on thermal modelling

2011

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Section: Exergy Efficiencymentioning

confidence: 99%

Photovoltaic modules and their applications: A review on thermal modelling

2011

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“…More details of governing equations derivation are found in References [8,[11][12][13]15,16,18]. Figure 1 shows the equivalent thermal resistant circuit of a PV/T air collector [18].…”

Section: Thermal Analysismentioning

confidence: 99%

“…On the other hand, the electrical parameters appear in this equation directly. In the previous studies [4,6,8,11,12,15,16], the exergy efficiency of a PV/T air collector has been calculated from the following equation:…”

Section: The Exergy Efficiency Of Pv/t Air Collectormentioning

confidence: 99%

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Exergetic optimization of a solar photovoltaic thermal (PV/T) air collector

Sarhaddi

Farahat

Ajam

et al. 2010

Int. J. Energy Res.

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SUMMARYIn this paper, an exergetic optimization has been developed to determine the optimal performance and design parameters of a solar photovoltaic thermal (PV/T) air collector. A detailed energy and exergy analysis has been carried out to calculate the thermal and electrical parameters, exergy components, and exergy efficiency of a typical PV/T air collector. The thermal and electrical parameters of a PV/T air collector include solar cell temperature, back surface temperature, outlet air temperature, open-circuit voltage, short-circuit current, maximum power point voltage, maximum power point current, etc. An improved electrical model has been used to estimate the electrical parameters of a PV/T air collector. Furthermore, a new equation for the exergy efficiency of a PV/T air collector has been derived in terms of design and climatic parameters. A computer simulation program has been also developed to calculate the thermal and electrical parameters of a PV/T air collector. The results of numerical simulation are in good agreement with the experimental measurements noted in the previous literature. Moreover, the simulation results obtained in this paper are more precise than the one given by the previous literature, and the new exergy efficiency obtained in this paper is in good agreement with the one given by the previous literature. Finally, exergetic optimization has been carried out under given climatic, operating, and design parameters. The optimized values of inlet air velocity, duct length, and the maximum exergy efficiency have been found. Parametric studies have been also carried out.

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“…They have reported that daily yield obtained is 3.5 times of the passive solar still. Thermal modeling of a combined system of photovoltaic thermal (PV/T) solar water heater has been reported in literature [18,19].…”

Section: Introductionmentioning

confidence: 99%