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Analysis of solar desiccant cooling system for an institutional building in subtropical Queensland, Australia

journal contribution
posted on 06.12.2017, 00:00 by Ali Baniyounes, Gang Liu, Mohammad Rasul, Mohammad Khan
Institutional buildings contain different types of functional spaces which require different types of heating, ventilating and air conditioning (HVAC) systems. In addition, institutional buildings should be designed to maintain an optimal indoor comfort condition with minimal energy consumption and minimal negative environmental impact. Recently there has been a significant interest in implementing desiccant cooling technologies within institutional buildings. Solar desiccant cooling systems are reliable in performance, environmentally friendly and capable of improving indoor air quality at a lower cost. In this study, a solar desiccant cooling system for an institutional building in subtropical Queensland (Australia) is assessed using TRNSYS 16 software. This system has been designed and installed at the Rockhampton campus of Central Queensland University. The system's technical performance, economic analysis, energy savings, and avoided gas emission are quantified in reference to a conventional HVAC system under the influence of Rockhampton's typical meteorological year. The technical and economic parameters that are used to assess the system's viability are: coefficient of performance (COP), solar fraction, life cycle analysis, payback period, present worth factor and the avoided gas emission. Results showed that, the installed cooling system at Central Queensland University which consists of 10m 2 of solar collectors and a 0.400m 3 of hot water storage tank, achieved a 0.7 COP and 22% of solar fraction during the cooling season. These values can be boosted to 1.2 COP and 69% respectively if 20m 2 of evacuated tube collector's area and 1.5m 3 of solar hot water storage volume are installed.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

16

Issue

8

Start Page

6423

End Page

6431

Number of Pages

9

ISSN

1364-0321

Location

Netherlands

Publisher

Elsevier

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Faculty of Sciences, Engineering and Health; Institute for Resource Industries and Sustainability (IRIS); Power Engineering Research Group;

Era Eligible

Yes

Journal

Renewable and sustainable energy reviews.

Exports