Optimum design and performance of a solar dish microturbine using tailored component characteristics

Gavagnin, Giacomo; Rech, Sergio; Sánchez, David; Lazzaretto, Andrea

doi:10.1016/j.apenergy.2018.09.140

Cited by 17 publications

(16 citation statements)

References 52 publications

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“…The daily DNI value in Antarctica is 16 kWh•m −2 , while in Italy the DNI daily value reaches 10 kWh•m −2 [4,5]. The parabolic dish design specifications, such as the reflective efficiencies of the collector factor (90%) and the global efficiency in produced electricity (21%) are taken from Reference [15]. Further on, when we evaluated the DNI potential at the desired location and we know the specific parabolic dish characteristics we are able to evaluate the annual and summer electricity production (E el ) of our system.…”

Section: Discussionmentioning

confidence: 99%

“…Figures 9 and 10 show the final dispersion graphs between the three coefficients (KT; k, Kbn) and the estimated interpolation curves. The Boland-Ridley model uses the α and β coefficients for the European (blue) and Australian (violet) regions [13], while the model developed in this study uses the calculated coefficients (15) for the Antarctic region (ENEA). In this case, the candidate second order polynomial is:…”

Section: Fine-tuning Modelmentioning

confidence: 99%

“…Afterwards, we are able to estimate the final coefficients by regression. Proceeding in this way we obtain: α = −9.18 β = 14.28 (15) The two final coefficients (15) are estimated from Equation (11) considering the 65 days of observed data from the Antarctic region. Figures 9 and 10 show the final dispersion graphs between the three coefficients (K T ; k, K bn ) and the estimated interpolation curves.…”

Section: Fine-tuning Modelmentioning

confidence: 99%

“…In the above expression, N = 10,641, it is the total number of observation pairs in the data; the subscript "i" refers to the i-th pair, while "o" and "c" refer to the observations and calculated values, respectively. The estimates are calculated using Equation (12) with the values given by Equation (15). The low value of the MBE means that the measurements and estimates are offset on the average value.…”

Section: Model Validationmentioning

confidence: 99%

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Estimation of Direct Normal Irradiance at Antarctica for Concentrated Solar Technology

Balog

Spinelli

Grigioni

et al. 2019

ASI

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The estimation of the average daily, monthly and annual direct normal solar irradiation(DNI) was done in the region hosting the Mario Zucchelli Station, in the bay of Terra Nova(Antarctica). Estimates are based on measurements of direct normal (DNI), horizontal global (GHI)and horizontal diffuse (Diff.HI) irradiations, observed by a solar-metric acquisition station installedduring the XXVIII scientific expedition carried out in the austral summer 2012/2013 as part of theNational Plan of Research in Antarctica (PNRA). The contemporary observations of all threeirradiations allowed the setting up of the model for the estimation of the DNI starting from thevalues of the GHI only, validated for the weather conditions of the Antarctic region. Subsequently,the long-time data reconstruction of the DNI values thanks to the availability of several years' hourlymeasurements of GHI at the Mario Zucchelli base has been carried out using the meteorologicalacquisition data installed both at the base and in places scattered around it. The final results makefeasible the estimation of solar potential for concentrated solar technology according to longmeasurements of GHI. Overall, we propose a clean technology based on a renewable power plantand a specific example with a tendency toward a decreased human carbon footprint in theatmosphere of this protected area.

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Section: Discussionmentioning

confidence: 99%

Section: Fine-tuning Modelmentioning

confidence: 99%

Section: Fine-tuning Modelmentioning

confidence: 99%

Section: Model Validationmentioning

confidence: 99%

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Estimation of Direct Normal Irradiance at Antarctica for Concentrated Solar Technology

Balog

Spinelli

Grigioni

et al. 2019

ASI

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“…The SDCs have been utilized in many applications, such as for heat generation, electricity generation (Le Roux et al, 2014;Loni et al, 2016aLoni et al, , 2016bGavagnin et al, 2017Gavagnin et al, , 2018Javidmehr et al, 2018), and desalination systems (Bahrami et al, 2019;Omara and Eltawil, 2013;Prado et al, 2016), and most researchers have been inspired to work on SDC technology.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of the receiver of a solar thermal dish collector with a dual layer, staggered tube arrangement, and multiscale diameter

Dulaimi

2020

Energy Exploration & Exploitation

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A new experimental model is proposed and tested to enhance the ability of receivers of solar thermal dish collectors in absorbing solar energy. An innovative model consisting of a dual layer, staggered arrangement, and multiscale diameter tubes is established. The enhancement augments the capability of the solar receiver of the collector to transform solar energy to thermal energy within the heat transfer fluid. The new design depends on the exploitation of the dead regions of the solar receiver, that is, surfaces with weak solar energy absorption which include the space between the pipes and the terminal sides of the pipes. The surface areas of the circular pipes in these regions are almost parallel to the solar energy radiation, which leads to a reduction in the ability of the tube to absorb solar energy. The design was validated through five receiver ([Formula: see text]) models for solar thermal dish collectors, in addition to the model base (which has single layer). Each model consists of a two-layer staggered arrangement and tubes with four different staggered diameter ratios [Formula: see text] between the two layers. Each of them has an octagonal shape and consists of three serial paths of copper tubes; each path consists of a bank of parallel tubes. The results show a noteworthy increase in the ability of the receiver to absorb solar energy and greater with model ([Formula: see text]) which [Formula: see text]equal (0.269) than for a plain tube collector. The enhancement leads to an increase in the thermal efficiency [Formula: see text]and exergetic performance [Formula: see text], that equal (78.8%) and (19.8%) respectively at (0.07 kg/s). Furthermore, the pressure difference, and efficiency evaluation criterion was estimated to evaluate dish collector receivers.

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Solar parabolic dish collector for concentrated solar thermal systems: a review and recommendations

Kumar

Daabo

Karmakar

et al. 2022

Environ Sci Pollut Res

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Optimum design and performance of a solar dish microturbine using tailored component characteristics

Cited by 17 publications

References 52 publications

Estimation of Direct Normal Irradiance at Antarctica for Concentrated Solar Technology

Estimation of Direct Normal Irradiance at Antarctica for Concentrated Solar Technology

Experimental investigation of the receiver of a solar thermal dish collector with a dual layer, staggered tube arrangement, and multiscale diameter

Solar parabolic dish collector for concentrated solar thermal systems: a review and recommendations

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