Water desalination through the dewpoint evaporative system

Pandelidis, Demis; Cichoń, Aleksandra; Pacak, Anna; Drąg, Paweł; Drąg, Marlena; Worek, William M.; Cetin, Sabri

doi:10.1016/j.enconman.2020.113757

Cited by 21 publications

(12 citation statements)

References 34 publications

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“…The numerical procedure used to solve the differential equations is executed in the MatLab environment with the Ordinary Differential Equations Solver (ode15s). The general assumptions of the model are listed below [20][21][22] Mass transfer of water vapor is driven by partial pressure gradient.…”

Section: Mathematical Model Of the Dpc-wr Systemmentioning

confidence: 99%

“…The balance equation for total heat transfer (sensible and latent) related to the 2nd stage is given with Equation (20).…”

Section: Mathematical Model Of the Second Stage Of The Dpc-wr Systemmentioning

confidence: 99%

“…This study provides the analytical investigation of a novel system for combined Dew Point Cooling and Water Recovery (DPC-WR system). So far, the system has been analyzed only for water recovery in the desalination process [20], but no studies of combined cooling and water recovery by the system have been done to date. The goal of this study is to present the operating principles of the DPC-WR system, provide the analytical study of the system performance, and determine its applicability in various climatic conditions.…”

Section: Introductionmentioning

confidence: 99%

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Analytical Investigation of a Novel System for Combined Dew Point Cooling and Water Recovery

Cichoń

Worek

2021

Applied Sciences

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This paper presents the analytical investigation of a novel system for combined Dew Point Cooling and Water Recovery (DPC-WR system). The operating principle of the presented system is to utilize the dew point cooling phenomenon implemented in two stages in order to obtain both air cooling and water recovery. The system performance is described by different indicators, including the coefficient of performance (COP), gained output ratio (GOR), energy utilization factor (EUF), specific energy consumption (SEC) and specific daily water production (SDWP). The performance indicators are calculated for various climatic zones using a validated analytical model based on the convective heat transfer coefficient. By utilizing the dew point cooling phenomenon, it is possible to minimize the heat and electric energy consumption from external sources, which results in the COP and GOR values being an order of magnitude higher than for other cooling and water recovery technologies. The EUF value of the DPC-WR system ranges from 0.76 to 0.96, with an average of 0.90. The SEC value ranges from 0.5 to 2.0 kWh/m3 and the SDWP value ranges from 100 to 600 L/day/(kg/s). In addition, the DPC-WR system is modular, i.e., it can be multiplied as needed to achieve the required cooling or water recovery capacity.

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Section: Mathematical Model Of the Dpc-wr Systemmentioning

confidence: 99%

“…The balance equation for total heat transfer (sensible and latent) related to the 2nd stage is given with Equation (20).…”

Section: Mathematical Model Of the Second Stage Of The Dpc-wr Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analytical Investigation of a Novel System for Combined Dew Point Cooling and Water Recovery

Cichoń

Worek

2021

Applied Sciences

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“…The main advantages of EC over conventional VC systems are the use of water instead of chemicals or refrigerants, quiet operation, low installation and maintenance cost, and lower energy consumption [14][15][16]. With proper modifications, EC technology could be implemented in different applications, besides space cooling, such as water desalination [17,18] and agricultural storage [19,20].…”

Section: Introductionmentioning

confidence: 99%

Indirect evaporative cooling for buildings: A comprehensive patents review

Mohammed

El-Morsi

Abdelaziz

2022

Journal of Building Engineering

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“…Excluding air cooling systems, there are a few other potential applications of M-cycle. Water desalination and distillation [17,18] is one of most important. Estimated annual energy consumption of world desalination processes is 75.2 TWh.…”

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confidence: 99%

Overview of the M-Cycle Technology for Air Conditioning and Cooling Applications

2022

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The indirect evaporative cooler (IEC) has excellent potential to replace or improve conventional vapor compression equipment in HVAC and refrigeration applications. This could be achieved by using the M-cycle (dew-point evaporative cooling technology). This thermodynamic concept makes it possible to derive a large amount of energy from the air stream (as latent heat released during water evaporation into the working air stream) and use it for another air stream (product). Its application has also spread to other sectors, such as water desalination and distillation, power plants, or NOx reduction. This paper provides an overview of the M-cycle mainly in air conditioning (MAC, D-MAC, H-MAC) and refrigeration (MCT, M-condenser). Various integrated solutions are described, showing improved effectiveness in terms of the wet-bulb temperature and the dew point. The design features of consolidated solutions are better In terms of the flow distribution, geometry, or volume. Most of the improvements confirm the great potential of the M-cycle to increase the unit or the system efficiency due to lower energy and water consumption.

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Water desalination through the dewpoint evaporative system

Cited by 21 publications

References 34 publications

Analytical Investigation of a Novel System for Combined Dew Point Cooling and Water Recovery

Analytical Investigation of a Novel System for Combined Dew Point Cooling and Water Recovery

Indirect evaporative cooling for buildings: A comprehensive patents review

Overview of the M-Cycle Technology for Air Conditioning and Cooling Applications

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