- Tytuł:
- Exergetic performance analysis of solar air heater with inverted L-shape ribs as roughness element
- Autorzy:
-
Chaudhari, Manmohan
Sharma, Sohan Lal
Debbarma, Ajoy - Powiązania:
- https://bibliotekanauki.pl/articles/27312231.pdf
- Data publikacji:
- 2023
- Wydawca:
- Polska Akademia Nauk. Czasopisma i Monografie PAN
- Tematy:
-
solar air heater
heat transfer
exergy loss
exergy efficiency
thermal efficiency - Opis:
- Improvement in the exegetic efficiency of a solar air heater (SAH) can be done by enhancing the rate of heat transfer. In this work, the exergetic efficiency optimization of an artificially roughened solar air heater having an inverted L-shape rib has been performed. The numerical analysis of the exergetic performance of the solar air heater was carried out at a constant heat flux of 1000 W/m2 . The study was conducted to investigate the effect of different relative roughness pitch (7.14–17.86) on the exergy losses, under the Reynolds number range of 3000 to 18 000. The roughness parameter of this geometry has been optimized and found to be among functional operating parameters like average solar intensity and temperature rise across the collector. The optimized value of relative roughness pitch is 17.86 at the isolation of 1000 W/m2 , and the parameter of temperature rise ranges from 0.005 to 0.04.
- Źródło:
-
Archives of Thermodynamics; 2023, 44, 3; 241--267
1231-0956
2083-6023 - Pojawia się w:
- Archives of Thermodynamics
- Dostawca treści:
- Biblioteka Nauki
Artykuł