Building Integrated Solar Desalination (BIDSAL): Preliminary Works with Multiple Effect Solar Still

Potential of solar desalination in Israel and in its close vicinity

Advances in solar desalination using 2D and biomass derived materials: A roadmap to sustainability

Enhanced water yield of solar desalination by thermal concentrated multistage distiller

Solar desalination has emerged as a sustainable solution for addressing global water scarcity in the energy-water nexus, particularly for remote areas in developing countries. How to use the light spectrum through solar devices can profoundly affect the solar energy utilization, desalination rates, off-grid applicability, and water affordability. Solar photovoltaic (PV) and solar thermal (ST) respectively have enabled a variety of interesting solar desalination technologies, but the resulting applications usually limit the integration between solar and desalination to be either electrically or thermally connected. Here this review paper explores smart co-uses of heat and electricity from the sun to improve the efficiency, productivity, and independence of various solar desalination processes. It is found that coupling solar photovoltaic-thermal (PVT) with desalination could be a practical and immediately deployable route for plausibly more sustainable solar desalination than current solutions, because the combined electrical and thermal energy outputs from PVT panels could be used synergistically to catalyze the improvement on the solar energy efficiency, specific energy consumption, and specific water production, as well as the operational independence for off-grid applications. Our preliminary analysis indicated an up to 20 % lower cost of PVT-desalination than current solar PV-desalination and ST-desalination but also with challenges discussed.

Experimental investigation of performance of cascade solar water desalination system equipped with internal reflector and concave steps

There is interest for desalination technologies powered by solar energy as arid areas are typically bestowed with good solar potential. In response to a US DOE call for solar desalination analysis tools, we developed an open-source solar energy desalination analysis tool, sedat, for techno-economical evaluation of desalination technologies and selection of regions with the highest potential for using solar energy to power desalination plants. It is expected that this software will simplify the planning, design, and valuation of solar desalination systems in the U.S. and worldwide. Sedat uses Dash for integrating various layers of large volumes of GIS data with Python-based models of solar energy generation and desalination technologies. It derives time-series of energy generation and water production, with details of plant performance and suggestions for improving the solar-desalination coupling. This paper summarizes the various phases of the tool’s development, presents example results showing the potential, under multiple objectives, of solar desalination in parts of the U.S. southwest, and discusses method details that would be useful for future model development.

Efficient solar seawater desalination constructed by oxide composite hydrogel with chitin as the base

Real estate companies should strictly control the cost of real estate projects in order to remain invincible in the fierce competition.Most of the real estate companies only pay close attention on the construction phase while ignoring the other stages, in fact, we should not limit to the cost of the construction phase and should control the entire life-cycle cost control and it is called Life Cycle Cost Control.

Purpose: Access to clean and potable water supply is the priority of many nations including the government of Nigeria towards socio-economic emancipation of the people. Due to increasing population expansion and water pollution, shortage of freshwater has become very common to many nations, particularly to the developing countries. To overcome the growing freshwater shortage, desalination has been proven to be the best alternative option towards freshwater provision for domestic and industrial applications. Desalination could be either thermal or electric methods which include multi-stage flash distillation (MSFD), multiple-effect distillation (MED), reverse osmosis (RO), or solar desalination. The innovation of solar still technology in recovery of fresh water from saline waters makes solar desalination simple and economical. A survey of socio-economic importance of solar energy desalination of saline lake waters at Uburu and Okposi communities, Ebonyi State, South eastern, Nigeria was conducted.
 Methodology: A survey research design was adopted for the study in order to address an age long tradition of fuel wood utilization in salt processing activity by the local women folk of Uburu and Okposi communities using saline water from the local lakes.
 Results: The survey showed that about 1,200 women were involved in the salt production activity utilizing about 26,000 tons of fuel wood per year. Translating this into monetary terms amounts to about US$$1.5 million per year. Socio-economic lives of people in the communities were negatively affected because fuel wood utilization in salt production adversely results to deforestation, environmental pollution and high cost of fuel wood in the communities. The quality and quantity (output) of salt recovering process were not commiserating to time, energy and monetary input in the process. It was observed that the distillate (freshwater portion) of the salt recovery from the saline water was not considered as an important component of the salt extraction process. This is because the salt producers were only interested on the salt extract as the only useful output of the extraction process. Recovery of freshwater component of the process could be an additional valuable income if considered.
 Unique Contribution to Theory, Policy and Practice: For sustainable salt production and freshwater recovery from the process solar desalination method was recommended for salt processing in the communities. The incorporation of solar desalination system into the age long traditional known method of salt processing will enhance salt production and boast socio-economic activities in the communities. A study of this kind is likely to help solve a major problem of acute water shortage in some communities whose water bodies are salty. The study could be a useful tool for policy makers in making rational policy that would improve and enhance salt and fresh water production as an enterprise.

Recent decades have seen a shortage of water, which has led scientists to concentrate on solar desalination technologies. The present study examines the solar water desalination system with inclined steps, while considering various phase change materials (PCMs). The findings suggest that the incorporation of PCM generally enhances the productivity of the solar desalination system. Additionally, the combination of nanoparticles has been used to PCM, which is a popular technique utilized nowadays to improve the efficiency of these systems. The current investigation involves the transient modeling of a solar water desalination system, utilizing energy conservation equations. The equations were solved using the Runge-Kutta technique of the ODE23s order. The temperatures of the salt water, the absorbent plate of the glass cover, and the PCM were calculated at each time. Without a phase changer, the rate at which fresh water is produced is around 5.15 kg/m2·h. The corresponding mass flow rates of paraffin, n-PCM I, n-PCM III, n-PCM II, and stearic acid are 22.9, 28.9, 5.9, 11.9, and 73 kg/m2·h. PCMs, with the exception of stearic acid, exhibit similar energy efficiency up to an ambient temperature of around 29°. However, at temperatures over 29°, n-PCM II outperforms other PCM.

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.

Performance analysis of a novel solar desalination system – Part 2: The unit with sensible energy storage with thermal insulation and cooling system

Experimental investigation of a low cost inclined wick solar still with forced continuous flow

A comprehensive review of direct solar desalination techniques and its advancements

Globally, energy is a dynamic element that makes people's major energy demands. There are a variety of energies; the one that is stupendous potential is solar. Solar energy is an efficient problem solving one to eliminate pollution from the environment and water scarcity. This review article provides the accomplishments in the progress of the solar pond, solar desalination and integration of both the systems in the recent years. The solar pool is one of the thermal energy storing systems which perform as a huge solar radiation collector to capture and store sun’s rays. The accumulated heat in the solar pool is weighed as the low category thermal energy. Hence, to enhance the performance upgrades are mandatory. Initially, use of unique salts and various additives is studied. And then, ingenious empirical works and several layers for minimizing the thermal losses from the upper and lower layers are exhibited. Heat removal techniques from the heat storage zone and mathematical model analysis are discussed. In addition, solar desalination unit is one of the possibilities for the effective production of sweet water from any form of polluted water (marine, brackish and contaminated water). Solar still is a trouble-free device utilized by condensation and evaporation processes to improve the limpidity of the water with the utilization of solar energy. This work made an attempt to classify various still designs with the greater volume of production. And also it analyzes the new innovations and thermal energy transfer process to reach at positive judgment. Desalination system performance is low for conventional approach, as desalination plant efficiency is relative to inlet water temperature, to upgrade it the solar pond coupled to desalination unit. With the exploitation of brine concentration and recovery system and multi-stage flash, fins and flat plate collector helps to elevate the beneficial solar pond and desalination output. This comprehensive review will guide the imminent researchers who desire to accelerate the performance of the pond and desalination units further.