Author
Kim Choon Ng
Other affiliations: National University of Singapore, Tokyo University of Agriculture and Technology, Northumbria University ...read more
Bio: Kim Choon Ng is an academic researcher from King Abdullah University of Science and Technology. The author has contributed to research in topics: Desalination & Adsorption. The author has an hindex of 57, co-authored 340 publications receiving 10853 citations. Previous affiliations of Kim Choon Ng include National University of Singapore & Tokyo University of Agriculture and Technology.
Topics: Desalination, Adsorption, Chiller, Waste heat, Heat exchanger
Papers published on a yearly basis
Papers
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TL;DR: In this article, the authors present a state-of-the-art review on energy, water and environment interconnection and future energy efficient desalination possibilities to save energy and protect environment.
479 citations
TL;DR: In this article, a 3D cylindrical cup-shaped structure of mixed metal oxide as solar evaporator was proposed, and the 3D structure led to a high energy efficiency close to 100% under one-sun illumination due to the capability of the cup wall to recover the diffuse reflectance and thermal radiation heat loss.
454 citations
TL;DR: In this paper, an experimental approach for the determination of thermodynamic characteristics of silica gel-water working pair is described, which is essential for the sizing of adsorption chillers.
308 citations
TL;DR: In this paper, the authors presented a transient model for a two-bed, silica gel-water adsorption chiller and found that regardless of the initial mass distribution, the chiller was able to achieve the same cyclic-steady state within four cycles or 1800s.
Abstract: This article presents a transient model for a two-bed, silica gel-water adsorption chiller. Compared with our previous cyclic-steady-state model, we found very good agreement between our model prediction and experimental data. We found that, regardless of the initial mass distribution, the chiller was able to achieve the same cyclic-steady-state within four cycles or 1800 s. We also demonstrated that the manufacturer had empirically evolved to select a fixed switching and cycle time such that the best peak evaporator temperature suppression, and near maximum cooling capacity can be achieved by a compact design.
265 citations
TL;DR: In this article, an adaption desalination (AD) cycle with low-temperature waste heat, which is available in abundance from either the renewable energy sources or exhaust of industrial processes, is described.
255 citations
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1,800 citations
TL;DR: Entropy generation minimization (finite time thermodynamics, or thermodynamic optimization) is the method that combines into simple models the most basic concepts of heat transfer, fluid mechanics, and thermodynamics as mentioned in this paper.
Abstract: Entropy generation minimization (finite time thermodynamics, or thermodynamic optimization) is the method that combines into simple models the most basic concepts of heat transfer, fluid mechanics, and thermodynamics. These simple models are used in the optimization of real (irreversible) devices and processes, subject to finite‐size and finite‐time constraints. The review traces the development and adoption of the method in several sectors of mainstream thermal engineering and science: cryogenics, heat transfer, education, storage systems, solar power plants, nuclear and fossil power plants, and refrigerators. Emphasis is placed on the fundamental and technological importance of the optimization method and its results, the pedagogical merits of the method, and the chronological development of the field.
1,516 citations
TL;DR: In this paper, the authors present a cost analysis of the reverse osmosis process and the main parameters influencing the total water cost produced by different desalination technologies, including capital and operating costs, as well as local incentives or subsidies.
1,132 citations
TL;DR: The design and demonstration of a device based on a porous metal-organic framework that captures water from the atmosphere at ambient conditions by using low-grade heat from natural sunlight at a flux of less than 1 sun (1 kilowatt per square meter).
Abstract: Atmospheric water is a resource equivalent to ~10% of all fresh water in lakes on Earth. However, an efficient process for capturing and delivering water from air, especially at low humidity levels (down to 20%), has not been developed. We report the design and demonstration of a device based on a porous metal-organic framework {MOF-801, [Zr6O4(OH)4(fumarate)6]} that captures water from the atmosphere at ambient conditions by using low-grade heat from natural sunlight at a flux of less than 1 sun (1 kilowatt per square meter). This device is capable of harvesting 2.8 liters of water per kilogram of MOF daily at relative humidity levels as low as 20% and requires no additional input of energy.
1,041 citations