Abstract
Water is essential for the hotel industry, its disposition is key to ensure the viability of the tourism sector that grows disproportionately day by day plus the scarcity of water in the world, this situation forces hotels to find alternatives to meet the demand for water. One of the preferred alternatives is solar water desalination. The purpose of this paper is to demonstrate through this first literature review whether solar desalination is a viable technique to meet the demand of potable water in a medium-sized hotel in a coastal area. We conducted a review of the literature published between 1987 and 2018, the subject of which is solar HDH desalination. Inclusion and exclusion criteria were formulated and applied to determine the most relevant studies to achieve the purpose of this research. The review found that solar desalination can be feasible to apply in hotels if they have large amounts of land for installation or the demand for water is not large. However, there are more economic methods to desalinate water while at the same time producing more water with similar sizes of facilities. Such results have practical implication for the use of the systems of hotels in general.
Highlights
Over the past 50 years, global water consumption has increased significantly[1].The hotel industry is not immune to this situation, especially since it ranks as the largest industry in terms of international trade, and continues to grow day by day[2]
One of the most preferred method for small scale application in remote areas is solar desalination by the humidification and dehumidification (HDH), because the cost of fabrication, operation and maintenance are lower than other desalination techniques [4,5]
The cost of water produced was found to be in the range of 1.50€-5.00 € per [ m3] The cost of water produced was found to be in the range of 2.50€-6.30€ per [ m3] The cost of water produced was found to be in the range of 3.20€-8.00€ per [ m3] The cost of water preoduction can vary 2.40€ - 6.19 € per [ m3]
Summary
Over the past 50 years, global water consumption has increased significantly[1].The hotel industry is not immune to this situation, especially since it ranks as the largest industry in terms of international trade, and continues to grow day by day[2]. In 1998 Farad and Al-Hallaj built an HDH desalination unit in Iraq. This unit collected 12 L/d per m2 from a single solar collector, which meant an improvement compared to previous research, showing only a single solar basis under the same conditions[6]. It is worth mentioning Ben Bacha et al, they presented a comprehensive research models, simulations and experimental validation of HDH systems, which aid the development of future improvements in the system [7].
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