Development of Sustainable Farming Compartment with Treated Wastewater in Abu Dhabi
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Development of Sustainable Farming Compartment with Treated Wastewater in Abu Dhabi

Authors: Jongwan Eun, Sam Helwany, Lakshyana K. C.

Abstract:

The United Arab Emirates (UAE) is significantly dependent on desalinated water and groundwater resource, which is expensive and highly energy intensive. Despite the scarce water resource, stagnates only 54% of the recycled water was reused in 2012, and due to the lack of infrastructure to reuse the recycled water, the portion is expected to decrease with growing water usage. In this study, an “Oasis” complex comprised of Sustainable Farming Compartments (SFC) was proposed for reusing treated wastewater. The wastewater is used to decrease the ambient temperature of the SFC via an evaporative cooler. The SFC prototype was designed, built, and tested in an environmentally controlled laboratory and field site to evaluate the feasibility and effectiveness of the SFC subjected to various climatic conditions in Abu Dhabi. Based on the experimental results, the temperature drop achieved in the SFC in the laboratory and field site were5 ̊C from 22 ̊C and 7- 15 ̊C (from 33-45 ̊C to average 28 ̊C at relative humidity < 50%), respectively. An energy simulation using TRNSYS was performed to extend and validate the results obtained from the experiment. The results from the energy simulation and experiments show statistically close agreement. The total power consumption of the SFC system was approximately three and a half times lower than that of an electrical air conditioner. Therefore, by using treated wastewater, the SFC has a promising prospect to solve Abu Dhabi’s ecological concern related to desertification and wind erosion.

Keywords: Ecological farming system, energy simulation, evaporative cooling system, treated wastewater, temperature, humidity.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1339374

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References:


[1] UNCCD, United Nations Convention to Combat Desertification. 1992.
[2] Abdelfattah, M. A. (2009). Land degradation indicators and management options in the desert environment of Abu Dhabi, United Arab Emirates. Soil Horizons, 50(1), 3-10.
[3] Abahussain, A. A., Abdu, A. S., Al-Zubari, W. K., El-Deen, N. A., & Abdul-Raheem, M. (2002). Desertification in the Arab region: analysis of current status and trends. Journal of Arid Environments, 51(4), 521-545.
[4] Böer, B. (1997). An introduction to the climate of the United Arab Emirates.Journal of Arid Environments, 35(1), 3-16.
[5] EAD, Maximizing recycled water use in the Emirate of Abu Dhabi. 2013. In Annual Policy Brief.
[6] “The National”, UAE, November 4, 2015, http://www.thenational.ae/uae/environment/plans-to-reuse-100-of-abu-dhabis-waste-water-in-four-years.
[7] Camargoa, J. R. et al. Experimental performance of a direct evaporative cooler operating during summer in a Brazilian city. International Journal of Refrigeration, 2005, 28 (7), p. 1124–1132.
[8] Wu, J.M. et al. Theoretical analysis on heat and mass transfer in a direct evaporative cooler. Applied Thermal Engineering, 2009, 29 (5–6), p. 980–984.
[9] Wu, J.M. et al. Numerical investigation on heat and mass transfer in a direct evaporative cooler. Applied Thermal Engineering, 2009, 29 (1), p. 195–201.
[10] Stabat, P, Marchio, D., Orphelin, M. Pre-Design and design tools for evaporative cooling. ASHRAE Transactions, 2001,107, p. 501–510.