Experimental investigation of the silica gel–water adsorption isotherm characteristics

Ng, Kim Choon; Chua, Hui Tong; Chung, Chan Ying; Loke, C. H.; Kashiwagi, Takao; Akisawa, Atsushi; Saha, Bidyut Baran

doi:10.1016/s1359-4311(01)00039-4

Cited by 312 publications

(140 citation statements)

References 6 publications

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“…However, development of new low-cost technologies such as adsorption desalination [41], membrane distillation (MD) and new hybrid systems using renewable energies and low grade waste energy will likely bring the cost down, but implementation of these new technologies will take some time to compete with the existing processes.…”

Section: Some Reasons For the Recent Increased Twc And The Impact Of mentioning

confidence: 99%

Technical review and evaluation of the economics of water desalination: Current and future challenges for better water supply sustainability

2013

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Desalination capacity has rapidly increased in the last decade because of the increase in water demand and a significant reduction in desalination cost as a result of significant technological advances, especially in the reverse osmosis process. The cost of desalinated seawater has fallen below US$0.50/m 3 for a large scale seawater reverse osmosis plant at a specific location and conditions while in other locations the cost is 50% higher (US$1.00/m 3 ) for a similar facility. In addition to capital and operating costs, other parameters such as local incentives or subsidies may also contribute to the large difference in desalted water cost between regions and facilities. Plant suppliers and consultants have their own cost calculation methodologies, but they are confidential and provide water costs with different accuracies.The few existing costing methodologies and software packages such as WTCost© and DEEP provide an estimated cost with different accuracies and their applications are limited to specific conditions. Most of the available cost estimation tools are of the black box type, which provide few details concerning the parameters and methodologies applied for local conditions. Many desalination plants built recently have greater desalinated water delivery costs caused by special circumstances, such as plant remediation or upgrades, local variation in energy costs, and site-specific issues in raw materials costs (e.g., tariffs and transportation). Therefore, the availability of a more transparent and unique methodology for estimating the cost will help in selecting an appropriate desalination technology suitable for specific locations with 2 consideration of all the parameters influencing the cost. A techno-economic evaluation and review of the costing aspects and the main parameters influencing the total water cost produced by different desalination technologies are herein presented in detail. Some recent developments, such as the increase of unit capacity, improvements in process design and materials, and the use of hybrid systems have contributed to cost reduction as well as reduction in energy consumption. The development of new and emerging low-energy desalination technologies, such as adsorption desalination, will have an impact on cost variation estimation in the future.

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Section: Some Reasons For the Recent Increased Twc And The Impact Of mentioning

confidence: 99%

Technical review and evaluation of the economics of water desalination: Current and future challenges for better water supply sustainability

2013

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“…57 Iron chips are inspected at least twice a year and regenerated or replaced if required, depending on its condition, whether it is fully oxidized or not. On the other hand, the silica gel is inspected quarterly every year and replaced when its original color changes, which depends on biogas flow rate through the purifier.…”

Section: J Renewable Sustainable Energy 8 023101 (2016)mentioning

confidence: 99%

A practical biogas based energy neutral home system for rural communities of Bangladesh

Das

Ehsan

Kader

et al. 2016

Journal of Renewable and Sustainable Energy

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Growing demand of energy consumption, subsequent increase in energy generation costs, and increased greenhouse gas (GHG) emissions, as well as global warming from the conventional energy sources, encourages interest worldwide to bring a higher percentage of renewable energy sources such as biogas into the energy mix to build a climate friendly environment for the future. Moreover, due to high investment and maintenance costs, governments are not providing enough support for grid extension and delivering electricity to remote locations or rural areas, in particular, in under-developing countries like Bangladesh. Therefore, this paper presents an Energy Neutral Home System (ENHS) that can meet all its energy requirements from low-cost, locally available, nonpolluting biogas generated from animal waste, in particular, chicken and cow manure. The proposed ENHS has been developed for rural community, typically an area of 200 families, and will not only provide cooking gas and sustainable and affordable power supply to the community with low emissions, but will also facilitate high quality fertilizer for agricultural purposes. In-depth analysis clearly demonstrates that the proposed ENHS not only offers electricity and cooking gas to the community with the lowest costs, but also reduces the energy crisis and GHG emissions and can play an active role in developing socio-economic infrastructure of rural communities in Bangladesh in many ways. V C 2016 AIP Publishing LLC.

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“…A mathematical model of vapor adsorption in the adsorbent layer, which ascribes the adsorption of impurities from a flow of inert gas (figure 8) was elaborated basing on an analysis of reference literature on vapor and silica equilibrium [6], computer modeling of adsorption refrigeration [7], and assuming the transient behavior of the system during adsorption and desorption at elevated pressures, a review of what is given in [8]. The following assumptions were taken in the model:…”

Section: Simulationmentioning

confidence: 99%

Real-time thermal imaging and quantitative characterization of adsorption-desorption processes in zeolites and silica gels

Vainer¹,

Melgunov²,

Ayupov³

et al. 2012

Proceedings of the 2012 International Conference on Quantitative InfraRed Thermography

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Experimental investigation of the silica gel–water adsorption isotherm characteristics

Cited by 312 publications

References 6 publications

Technical review and evaluation of the economics of water desalination: Current and future challenges for better water supply sustainability

Technical review and evaluation of the economics of water desalination: Current and future challenges for better water supply sustainability

A practical biogas based energy neutral home system for rural communities of Bangladesh

Real-time thermal imaging and quantitative characterization of adsorption-desorption processes in zeolites and silica gels

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