Статья

Experimental investigation of the thermal efficiency of a new cavity receiver design for concentrator solar technology

Qusai AlkhalafSchool of Core Engineering, Shoolini University, Solan, HP, IndiaDaeho LeeDepartment of Mechanical Engineering, Gachon University, Seongnam, 13120, South KoreaRaj KumarDepartment of Mechanical Engineering, Gachon University, Seongnam, 13120, South KoreaSashank ThapaSchool of Core Engineering, Shoolini University, Solan, HP, IndiaAmar Raj SinghSchool of Core Engineering, Shoolini University, Solan, HP, IndiaMohammad Nishat AkhtarSchool of Aerospace Engineering, University and City with Country Name: Universiti Sains Malaysia, 14300, Nibong Tebal, Penang, MalaysiaMohammad AsifDepartment of Chemical Engineering, King Saud University, P.O. Box 800, Riyadh, 11421, Saudi ArabiaÜmit AğbulutClean Energy Resources Application and Research Center, Düzce University, 81620, Düzce, Turkey

2023en

ABI

Аннотация

The most popular design for solar energy receivers that achieves great thermal performance is a cavity receiver. This study experimentally compared two novel shapes of cavity receivers: conical-cylindrical-conical (CCC) and double cylindrical, with conventional conical and cylindrical designs, to examine the effectiveness of solar energy receivers. The findings indicate that the CCC shape demonstrated a higher level of efficiency, as it performed better than all other shapes that were examined. Results emphasized the influence of radiation intensity on receiver efficiency, with all shapes exhibiting improved performance at higher intensities, maximizing at 1000 W/m2. Lower friction factors were desirable for minimizing heat losses and maximizing efficiency, resulting in values of 0.078, 0.09, 0.1, and 0.12 for CCC, conical, double cylindrical, and cylindrical shapes at a flow rate of 2 L/min, respectively. The temperature differences for CCC, conical, double cylindrical, and cylindrical shapes are computed as 6.4 °C, 5.7 °C, 5 °C, and 4.3 °C, respectively. The thermal efficiencies of the CCC, conical, double cylindrical, and cylindrical shapes are computed as 86.5 %, 81.5 %, 79.9 %, and 68.9 %, respectively, at a flow rate of 2 L/min.

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Идентификаторы

DOI: 10.1016/j.csite.2023.103848

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar