Experimental study of heat transfer and thermal performance with longitudinal fins of solar air heater

Chabane, Foued; Moummi, Noureddine; Benramache, Said

doi:10.1016/j.jare.2013.03.001

Cited by 189 publications

(61 citation statements)

References 26 publications

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“…Different shapes of fins have been studied. First, longitudinal fins which was studied by many researchers either experimentally [6][7][8] or theoretically [9,10]. The results of such studies confirmed that attaching fins to the absorber plate improves the performance of SAH as they have higher heat transfer area and lower irreversibility compared to flat plate SAH.…”

Section: Introductionmentioning

confidence: 86%

Influence of bladed and glazed entrance on the performance of solar air heaters

et al. 2018

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The performance of a flat plate single-pass Solar Air Heater (SAH) modified at the entrance region was experimentally investigated. This entrance region was covered with glass cover instead of steel. Using glass at the entrance region increases the heating area exposed to solar radiation and avoids the restriction of solar radiation from reaching this area as in case of steel cover. Also, guide blades were placed in the entrance region to ensure well air distribution on the absorber surface and hence enhancing the thermal performance of SAH. The modified SAH was compared with another of conventional entrance. The experiments were performed at four air flow rates ranged from 0.013 to 0.04 kg/s. The modifications led to good enhancement in both the air temperature difference and the efficiency. For the daily efficiency, the maximum values are 43.43, 40.48 and 32.92 % for the glazed-bladed entrance SAH, glazed entrance SAH and conventional SAH, respectively, at the rate of 0.04 kg/s. The glazed-bladed SAH showed a good improvement in the daily thermal efficiency by 6.72 to 10.5 % over the conventional heater and by 2.16 to 3.25 % over the glazed SAH.

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Section: Introductionmentioning

confidence: 86%

Influence of bladed and glazed entrance on the performance of solar air heaters

et al. 2018

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“…Absorber material properties (e.g., absorptance, transmittance) and geometries Pakdaman et al 2011;Chabane et al 2014), number of transparent covers (glazing) (Belusko et al 2004) and geometry of air passage (Budea 2014;Forson et al 2003) greatly influence the outlet temperature in a solar air heater. Considering variations in design and location, usually 300-900 kWh of thermal energy per year can be extracted by a collector of 1 m 2 surface area (Faninger 2010).…”

Section: Conversion Efficiencymentioning

confidence: 99%

Solar air heater for residential space heating

Choudhury

Baruah

2017

Energ. Ecol. Environ.

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Space heating appliances require significant amount of primary as well as secondary energy. In most of the countries, energy requirements for such utilities are met by burning fossil fuel or from conventional electricity. Such usual practices for space heating result in significant increase in greenhouse gas emission and fossil fuel depletion. In the line of global emphasis on energy conservation and switch-to-clean energy approach, solar thermal energy can be harnessed using solar air heater for space heating purpose. This paper studies the potential of using solar air heater in space heating applications. Associated critical issues like demand-supply mismatch, installation space constraint, annual utilization factor and undesirable variations in output temperature are highlighted. Further, current research trends toward improving applicability of solar air heater are also briefly discussed.

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“…A single pass solar air heater is developed in (Chabane, Moummi, & Benramache, 2014) with five fins in form of semi cylindrical longitudinal under absorber plate. The collector is compared with a solar air collector without fins.…”

Section: Introductionmentioning

confidence: 99%