Thermal performance of single glazing V-through solar collector using horizontal and vertical nail cut twisted tape insert

2020 
Thermal energy is very lots beneficial in the human day by day lifestyles whereas it is transformed from solar strength. One of the green methods of garnering warm energy is from the sun plate collector. This paper emphasizes an experimental observe of Nusselt range (Nu), Friction element (fr) and Thermal overall performance (η) of the Double-V-Trough solar Collector (DGVT) ready with plain twisted tape (PTT), horizontal wing twisted tape (HWTT) and vertical wing twisted tape(VWTT) bets under one of a kind turning situations (Y=3& 6) and same working mode. DGVT's warmness transfer capacity is better than an unmarried glass V-Trough sun collector (SGVT) with eight.84%. The usage of the double glazing glass within the V-Trough collector reduces the thermal coefficient which improves the thermal performance. Empirical data has been validated with basic equation and its associated errors are less than ± 14.79% & ± 4.17% for Nu and respectively. The experimental results showed that Nu, frand η in DGVT associated with HWTT were significantly higher than in the tube equipped with VWTT and PTT. The additional fluid disruption close to the tube wall persuaded by the wing and the secondary flow near the tube wall represented by HWTT and VWTT relative to the induced by PTT was determined as the cause of enrichment. Correlations are developed for Nu and to match experimental results and deviation falls within ± 9.25% and ± 7.18%, respectively.
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