Productivity enhancements of compound parabolic concentrator tubular solar stills

RENEWABLE ENERGY

卷:88

Article

Arunkumar, T.^1,2  Velraj, R.¹  Denkenberger, D. C.³  Sathyamurthy, Ravishankar⁴  Kumar, K. Vinoth⁵  Ahsan, Amimul⁶ 

[1] Anna Univ, Inst Energy Studies, Madras 600025, Tamil Nadu, India

[2] Dr NGP Inst Technol, Dept Phys, Coimbatore 641048, Tamil Nadu, India

[3] Tennessee State Univ, Dept Civil & Architectural Engn, Nashville, TN 37203 USA

[4] Hindustan Inst Technol & Sci, Dept Mech Engn, Madras 603103, Tamil Nadu, India

[5] CHOGEN Powers Pvt Ltd, Madras, Tamil Nadu, India

[6] Univ Putra Malaysia, Inst Adv Technol, Dept Civil Engn, Serdang 43400, Selangor, Malaysia

关键词: Compound parabolic concentrator;    Single slope solar still;    Pyramid solar still;    Cooling water;   

DOI  :  10.1016/j.renene.2015.11.051

来源: Elsevier

【 摘 要 】

The performance of compound parabolic concentrator assisted tubular solar still (CPC-TSS) and compound parabolic concentrator-concentric tubular solar still (CPC-CTSS) (to allow cooling water) with different augmentation systems were studied. A rectangular saline water trough of dimension 2 m x 0.03 m x 0.025 m was designed and fabricated. The effective collector area of the still is 2m x 1 m with five sets of tubular still-CPC collectors placed horizontally with north-south orientation. Hot water taken from the CPC-CTSS was integrated to a pyramid type and single slope solar still. Diurnal variations of water temperature, air temperature, cover temperature and distillate yield were recorded. The results showed that, the productivity of the un-augmented CPC-TSS and CPC-CTSS were 3710 ml/day and 4960 ml/day, respectively. With the heat extraction technique, the productivity of CPC-CTSS with a single slope solar still and CPC-CTSS with a pyramid solar still were found as 6460 ml/day and 7770 ml/day, respectively. The process integration with different systems cost was found slightly higher but the overall efficiency and the produced distilled water yield was found augmented. (C) 2015 Elsevier Ltd. All rights reserved.

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