A techno-economic review of multi effect desalination systems integrated with different solar thermal sources

The improvement of water and energy use is an important concern in the scope of improving the overall performance of industrial process plants. The investment in energy efficiency comprehended by the most recent sustainability policies may prove to be an effective response to the fall of energy intensity rates associated with the economic crisis brought by the COVID-19 pandemic. The improvement in water efficiency may also prove to be a potential approach due to its interdependencies to energy use, whose exploitation comprises part of the study of the water-energy nexus. Waste heat recovery and water reclamation practices have been exploited to improve water and energy efficiency. A specific method designated “Combined Water and Energy Integration” has been applied to water recycling as both an additional water source and a heat recovery source in a set of water-using processes. In scientific and industrial domains, there is still a need for integrated approaches of water-using and combustion-based processes for overall water and energy efficiency improvements in industrial plants. In this work, an innovative approach for a simultaneous improvement of water and energy use is proposed based on process integration and system retrofitting principles. This proposal is based on the delineation of two innovative concepts: Water and Energy Integration Systems (WEIS) and Water-Heat Nexus (WHN). A review on existing technologies for waste heat recovery, thermal energy storage and heat-driven wastewater treatment is performed, following a conceptualisation design.

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“…The overall process is represented in Figure 3a. [71,201,[204][205][206] Multi-Stage Flash Distillation (MSFD)…”

Section: Multi-effect Distillation (Med)mentioning

confidence: 99%

Review on Water and Energy Integration in Process Industry: Water-Heat Nexus

2022

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“…For the CCGTE-RO and NGH-MED baselines with 45% water recovery, when we ignore the DWI brine disposal costs (dark brown component of the bars), the LCOW approaches $1/m 3 which is consistent with seawater desalination followed by ocean discharge. 65 , 66 However, when the brine disposal cost is included, the LCOW increases by a factor of 3×. This significant cost increase reveals the economic impact of desalination brine, making it a major challenge for inland treatment facilities.…”

Section: Resultsmentioning

confidence: 99%

Distributed desalination using solar energy: A technoeconomic framework to decarbonize nontraditional water treatment

Menon¹,

Jia²,

Kaur³

et al. 2023

iScience

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“…Having established these baseline system costs for practical AWH systems in representative global locations, we now compare their LCOW to that of seawater desalination at $1 per m 3 ; this value is based on existing coastal reverse osmosis plants and considers both capital and operating expenditures (including LCOE), as well as the cost of brine disposal ( via ocean discharge). 46,47 To this LCOW for desalinating seawater at the nearest coast (located using MATLAB's built-in Global Self-Consistent Hierarchical High-Resolution Geography data 43 ), the cost associated with transporting water inland is added to enable a direct comparison of AWH and desalination at a given location. We note that the water transport cost is also levelized over the lifetime of the infrastructure, which includes capital and operating expenditures for a combination of pipes, canals, and tunnels 14 (Methods).…”

Section: Resultsmentioning

confidence: 99%