Experimental studies on desalination system for ocean thermal energy utilisation

Kumar, R. Senthil; Mani, A.; Kumaraswamy, S.

doi:10.1016/j.desal.2006.08.001

Cited by 25 publications

(3 citation statements)

References 6 publications

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“…The results of simulation showed an improvement in distillate production of the system with reduction of condenser temperature and chamber pressure. Mani et al presented an experimental investigation of a desalination system and studied the impact of many operational parameters, such as condensation and evaporation temperatures and chamber vacuum pressure, on the system performance. Toth et al applied different evaporation pressures to investigate heat pump vacuum evaporator and found that the highest removal or reduction of the chemical oxygen demand of process wastewater was reached using the lowest possible pressure of 40 mbar.…”

Section: Introductionmentioning

confidence: 99%

“…The results of simulation showed an improvement in distillate production of the system with reduction of condenser temperature and chamber pressure. Mani et al 20 presented an experimental investigation Highlights • Integration between solar absorption system and vacuum distillation system has a novelty based on the fact that vacuum desalination unit needs low grade thermal energy for evaporation under vacuum pressure conditions and the rejected heat from the absorption unit serves the purpose. The cooling effect created by the evaporator is enough to maintain the required condensation rate.…”

Section: Introductionmentioning

confidence: 99%

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A novel vacuum wastewater treatment plant integrated with a solar absorption system

Saleh

Al‐Nimr

2019

Int J Energy Res

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Summary In this investigation, a novel use of the solar absorption refrigeration systems was introduced by using it to enhance the operation of vacuum wastewater treatment plant. Wastewater treatment systems require a source of heat for evaporation, a cooling section for condensation and a mean of evacuation to facilitate evaporation. The solar absorption system can take over the first two tasks. Among the commercially available vacuum evaporators, one was selected and modified by replacing the conventional heat pump with the solar absorption system. Two validated mathematical models available in the literature, one for solar absorption subsystem and one for vacuum evaporation subsystem, were integrated together to perform the analysis. The impacts of solar absorption subsystem parameters along with vacuum evaporator subsystem parameters on the overall performance were investigated using the developed program. System performance was evaluated in terms of evaporation rate and condensate rate production. It was found that the degree of superheat had the greatest impact on the rate of evaporation. At low levels of supply temperature to the vacuum chamber, using only heat provided by the absorption system, the evaporation rate exceeded 60 kg/h. If the hot water was further heated by passing through the solar collector storage tank, the evaporation rate exceeded 200 kg/h.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A novel vacuum wastewater treatment plant integrated with a solar absorption system

Saleh

Al‐Nimr

2019

Int J Energy Res

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“…The jet pump has been used in the oil and gas industry for increasing their production and in the desalination of water . The SJP has been analyzed for district heating as well as for using as a pump .…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental study of steam‐water two‐phase flow through steam jet pump

Shah

Khan

Chughtai

et al. 2013

Asia-Pacific J Chem Eng

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The Steam Jet Pump (SJP) is the most suitable pump for pumping radioactive and hazardous liquids because of its mechanical simplicity, no maintenance, low cost, easy construction, no leakage, simple control, and so on. The only problem with the SJP is the complexity in the transport phenomena involved in it. In this study, the void fraction in the mixing section has been measured experimentally through gamma-ray densitometry technique, and the flow through the SJP was simulated numerically. The reported numerical study of the SJP is very limited because of the complexity of the problem. In this work, three-dimensional steady state numerical simulations of the SJP were carried out using the Shah Direct-Contact Condensation (DCC) model developed previously. The experimental and Computational Fluid Dynamics (CFD) results of void fraction have been compared at different steam inlet pressure, and it was found that they match closely with each other. The transport phenomena in the SJP were explained using the CFD results of condensation heat transfer coefficient, steam plume shape, radial temperature distributions, and contours of static pressure and steam density. This study helps in validating the Shah direct-contact condensation model and providing valuable information about the transport phenomena occurring within the mixing section of the SJP.

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Experimental analysis of a hybrid system including refrigeration cycle and water desalination with jet pump

Hosseini

Noghrehabadi

Behbahani–Nejad

2021

J Therm Anal Calorim

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Experimental studies on desalination system for ocean thermal energy utilisation

Cited by 25 publications

References 6 publications

A novel vacuum wastewater treatment plant integrated with a solar absorption system

A novel vacuum wastewater treatment plant integrated with a solar absorption system

Numerical and experimental study of steam‐water two‐phase flow through steam jet pump

Experimental analysis of a hybrid system including refrigeration cycle and water desalination with jet pump

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