relation: https://khub.utp.edu.my/scholars/9295/
title: Thermal performance study of a multi-pass solar air heating collector system for drying of Roselle (Hibiscus sabdariffa)
creator: Kareem, M.W.
creator: Habib, K.
creator: Ruslan, M.H.
creator: Saha, B.B.
description: This article presents a study on the performance of a forced convective multi-pass solar air heating collector (MPSAHC) system assisted with granite as a sensible energy storing matrix. Experimental drying of Roselle was carried out in August 2015 at Solar Energy Research Site of Universiti Teknologi PETRONAS, Malaysia (4.385693° N and 100.979203 S). The present investigation was conducted under the daily average relative humidity, solar irradiance, ambient temperature and wind speed of 64.5, 635.49 Wm�2, 32.24 °C, and 0.81 ms�1, respectively. An average drying rate of 33.57 g (kg m2 h)�1 was achieved while the system optical efficiency, collector efficiency, drying efficiency and moisture pickup efficiency of 70.53, 64.08, 36.22 and 66.95 were obtained, respectively. MPSAHC dryer was 21 h faster with fair color retention when compared to open sun drying approach (OSDA) that was conducted together under the same weather condition. Techno economic analysis reflected a payback period of 2.14 years. However, drying efficiency could be improved if the inlet air humidity can be controlled to favor drying operation. © 2016
publisher: Elsevier Ltd
date: 2017
type: Article
type: PeerReviewed
identifier:   Kareem, M.W. and Habib, K. and Ruslan, M.H. and Saha, B.B.  (2017) Thermal performance study of a multi-pass solar air heating collector system for drying of Roselle (Hibiscus sabdariffa).  Renewable Energy, 113.  pp. 281-292.  ISSN 09601481     
relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019598968&doi=10.1016%2fj.renene.2016.12.099&partnerID=40&md5=82beef1a3f3a124a273a45755b01d4ce
relation: 10.1016/j.renene.2016.12.099
identifier: 10.1016/j.renene.2016.12.099