Analytical investigation of collector optimum tilt angle at low latitude

An analytical investigation on the optimum tilt angle for solar collectors at low latitude, a case study of Universiti Teknologi PETRONAS (UTP), 4.39°N and 100.98°E, Malaysia is presented in this work. The study employed Hay, Davies, Klucher, and Reindl (HDKR) anisotropic sky model to evaluate the...

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Main Authors: Aja, O.C., Al-Kayiem, H.H., Abdul Karim, Z.A.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.32646 /
Published: 2013
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891612242&doi=10.1063%2f1.4829434&partnerID=40&md5=924e131f46a8d3dc5deccc458b6f0fba
http://eprints.utp.edu.my/32646/
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spelling utp-eprints.326462022-03-29T14:08:17Z Analytical investigation of collector optimum tilt angle at low latitude Aja, O.C. Al-Kayiem, H.H. Abdul Karim, Z.A. An analytical investigation on the optimum tilt angle for solar collectors at low latitude, a case study of Universiti Teknologi PETRONAS (UTP), 4.39°N and 100.98°E, Malaysia is presented in this work. The study employed Hay, Davies, Klucher, and Reindl (HDKR) anisotropic sky model to evaluate the available hourly solar radiation on inclined surface using the location metrological data. The tilt angles considered were 0° to 30° in step of 3° with the inclusion of the location latitude angle. The study employed the ratio of global solar radiation on tilted surface to the global solar radiation on horizontal surface in the decision of the optimum tilt. The system equations were converted to MATLAB codes to solve for the optimum tilt angles. The results show that the optimum tilt varies monthly but gave zero degree for south facing collector for the months of April to August; thus, the investigation also considered north facing orientation for the months of April to September. The optimum annual tilt angle for the location using the tilt to horizontal radiation ratio was found to be equal to the location latitude angle. Using the conventional average of the monthly optimum tilt angles, the annual optimum tilt angle was found to be 9.75° for south facing collector. Considering seasonal optimum tilt angle for the location using the tilt to horizontal radiation ratio, 18° facing south was found to be the optimum tilt angle for rainy season (September to March) and 15° facing north for dry season (April to August). Employing the average of monthly optimum tilt method, the seasonal optimum tilt angle was found to be 17° for rainy season and 12° facing north dry season. The effect of dust on the collector was considered with reference to literature and the annual tilt angle of 15° facing south was recommended for the location in the case of large solar collector that cannot be monthly or seasonally adjusted. © 2013 AIP Publishing LLC. 2013 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891612242&doi=10.1063%2f1.4829434&partnerID=40&md5=924e131f46a8d3dc5deccc458b6f0fba Aja, O.C. and Al-Kayiem, H.H. and Abdul Karim, Z.A. (2013) Analytical investigation of collector optimum tilt angle at low latitude. Journal of Renewable and Sustainable Energy, 5 (6). http://eprints.utp.edu.my/32646/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description An analytical investigation on the optimum tilt angle for solar collectors at low latitude, a case study of Universiti Teknologi PETRONAS (UTP), 4.39°N and 100.98°E, Malaysia is presented in this work. The study employed Hay, Davies, Klucher, and Reindl (HDKR) anisotropic sky model to evaluate the available hourly solar radiation on inclined surface using the location metrological data. The tilt angles considered were 0° to 30° in step of 3° with the inclusion of the location latitude angle. The study employed the ratio of global solar radiation on tilted surface to the global solar radiation on horizontal surface in the decision of the optimum tilt. The system equations were converted to MATLAB codes to solve for the optimum tilt angles. The results show that the optimum tilt varies monthly but gave zero degree for south facing collector for the months of April to August; thus, the investigation also considered north facing orientation for the months of April to September. The optimum annual tilt angle for the location using the tilt to horizontal radiation ratio was found to be equal to the location latitude angle. Using the conventional average of the monthly optimum tilt angles, the annual optimum tilt angle was found to be 9.75° for south facing collector. Considering seasonal optimum tilt angle for the location using the tilt to horizontal radiation ratio, 18° facing south was found to be the optimum tilt angle for rainy season (September to March) and 15° facing north for dry season (April to August). Employing the average of monthly optimum tilt method, the seasonal optimum tilt angle was found to be 17° for rainy season and 12° facing north dry season. The effect of dust on the collector was considered with reference to literature and the annual tilt angle of 15° facing south was recommended for the location in the case of large solar collector that cannot be monthly or seasonally adjusted. © 2013 AIP Publishing LLC.
format Article
author Aja, O.C.
Al-Kayiem, H.H.
Abdul Karim, Z.A.
spellingShingle Aja, O.C.
Al-Kayiem, H.H.
Abdul Karim, Z.A.
Analytical investigation of collector optimum tilt angle at low latitude
author_sort Aja, O.C.
title Analytical investigation of collector optimum tilt angle at low latitude
title_short Analytical investigation of collector optimum tilt angle at low latitude
title_full Analytical investigation of collector optimum tilt angle at low latitude
title_fullStr Analytical investigation of collector optimum tilt angle at low latitude
title_full_unstemmed Analytical investigation of collector optimum tilt angle at low latitude
title_sort analytical investigation of collector optimum tilt angle at low latitude
publishDate 2013
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84891612242&doi=10.1063%2f1.4829434&partnerID=40&md5=924e131f46a8d3dc5deccc458b6f0fba
http://eprints.utp.edu.my/32646/
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score 11.62408

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