Techno-economic analysis of combined ammonia-water absorption refrigeration and desalination

Alelyani, Sami M.; Fette, Nicholas W.; Stechel, Ellen B.; Doron, P.; Phelan, Patrick E.

doi:10.1016/j.enconman.2017.03.085

Cited by 65 publications

(12 citation statements)

References 25 publications

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“…A general overview of the steady-state model predicting is given in Fig. (4), where the distribution along the effects of some of the main operating parameters was shown. Mass flow rates for MED…”

Section: Results and Analysismentioning

confidence: 99%

“…Recently, the water desalination market is in huge growth due to the rapid increase in the need for freshwater, whether for domestic use, industry, or agriculture, due to the increase in the population on the one hand and climatic changes on the other. For this purpose, many distillation technologies have been developed [1], such as distillation using electrical energy (ED), mechanical energy (Ro, MVC), and thermal energy which is the most common due to the complete purity of salt, regardless of the salinity of seawater, in addition to the possibility of integration with Solar Rankin cycle power plants [2,3], absorption chillers [4], heat pumps [5], the vapor-compression refrigeration systems [6], and solar energy technologies as a source of thermal energy [7,8]. Among thermal desalination processes, the Multi-Effect Distillation (MED) technology is currently the most focused, due to the higher energetic performances achieved and the larger flexibility compared to the traditionally preferred Multi-Stage Flash (MSF) technology [9], also it requires relatively less pretreatment than RO [10].…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Modeling and Simulation of the Forward Feed MED-TVC Desalination Plant

Habib

Hamed

Youssef

et al. 2022

ARFMTS

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The sudden disturbances in the operating parameters of desalination plants are common, especially when these plants are integrated with concentrated solar power (CSP). These disturbances damage the plants over time and may lead to a complete shutdown. This paper aims to investigate the performance of a forward feed multi-effect distillation plant with a thermal vapor compressor (FF-MED-TVC) which has a high potential for integration with concentrated solar power (CSP). However, the fluctuation and instability of solar energy require the development of dynamic model for the MED process to analyze the transient behavior. Few papers were published in the transient state, especially the forward feed (FF) configuration, as most of the papers focused on the parallel feed (PF) and parallel cross feed (PCF) configuration. Accordingly, a mathematical model has been developed using Engineering Equation Solver (EES) software and validated against data reported from two previous models in the literature, where a perfect agreement was obtained. Then the proposed model was employed to predict the system's response to the most important parameters that may change suddenly in the real operating environment, such as the variation in the motive steam pressure, feed seawater mass flow rate, and temperature. For the same percentage (10%) of these three disturbances, the results indicated that the needed time to return to 95 % of steady state is the longest in the case of increasing the seawater mass flow rate (about 350 seconds after the turbulence is removed), while it is the shortest in the case of increasing the pressure of motive steam (about 50 seconds after the turbulence is removed). In this paper, a comprehensive analysis of the transient performance was performed and a clearer view of the dynamic response was given which enables to optimize the control strategy and improve the stability.

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Section: Results and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic Modeling and Simulation of the Forward Feed MED-TVC Desalination Plant

Habib

Hamed

Youssef

et al. 2022

ARFMTS

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“…Their results showed that the total exergy destruction of the combined systems decreases compared to standalone systems. 12 Lu et al presented a new absorption refrigeration system by producing continuous temperature change to improve temperature compliance with such a waste heat source. Their simulation results show that the system can operate under a large temperature range of waste heat.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of Box–Behnken and central composite designs to investigate the effective parameters of ammonia–water absorption refrigerant system

Kazemian

Nassab

Javaran

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, the statistical analyses of the ammonia-water absorption refrigerant system (ARS) are presented. For this purpose, different surface response methods, including the Central composite design (CCD) and Box- Behnken design (BBD), have been studied and compared first to obtain the best response. An attempt is made to study the effect of some factors (mass flow rate, isentropic efficiency of pump, pressure ratio, maximum pressure of cycle, concentration difference of strong and weak solution, concentration of strong solution and effectiveness factor of heat exchanger and pure ammonia concentration) on the system’s response. Based on the design of experiment analysis, regression models are presented to quantify the effects of these parameters on coefficient of performance (COP) and cooling load of the ammonia-water absorption refrigerant cycle. The proposed correlations obtained by the analysis have remarkably satisfactory performance for all simulation data. The error analysis is applied to find the maximum error of 0.482% in numerical computations for ARS by CCD method in midpoint values of parameters.

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“…Generally, the absorption refrigeration cycle is categorised into two types: the lithium-bromide-based absorption refrigeration cycle [11] and the ammonia-water-based absorption refrigeration cycle [12]. Owing to the crystallisation in the operating fluid, the refrigeration temperature of lithiumbromide-based absorption refrigeration cycle remains above zero [13][14][15], while the refrigeration temperature of an ammonia-water-based cycle can reach approximately −30 °C [16][17][18] and can be used for cryogenic refrigeration [19]. Therefore, the ammonia-water-based cycle is more competitive for marine cryogenic refrigeration, particularly for fishing ship refrigeration.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental investigation of an absorption refrigeration and pre-desalination system for marine engine exhaust gas heat recovery

Yuan

Sun

Zhang

et al. 2019

Applied Thermal Engineering

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Absorption-refrigeration-cycle-based exhaust gas heat recovery technology is effective in improving the thermal efficiency and fuel economy of marine diesel engines. However, the absorption refrigeration system is inflexible in the start-stop operation, and this cannot fulfil the fluctuating demand of refrigeration. This paper presents both the theoretical and experimental investigations of an absorption refrigeration and freezing pre-desalination-based marine engine exhaust gas heat recovery system. The energy storage subcycle is introduced to overcome the energy underutilisation and balance the excessive refrigerating output of the absorption refrigeration cycle. Seawater is utilised as the phase-change material and it is pre-desalinated in the energy storage subcycle. A mathematical model of the system is established and experimental investigation is conducted. Furthermore, the theoretical and experimental performances are compared, and an economic analysis of seawater desalination is performed to evaluate its economy. The results show that the total refrigeration output of the system ranges from 6.1 kW to 9.9 kW, and the system COP (Coefficient of Performance) can reach 16% under the experimental operating conditions. Additionally, the salinity of pre-desalinated seawater can be reduced to below 10 ppt. Moreover, the cost of RO (Reverse Osmosis) seawater desalination can be reduced by 26% through the predesalination process of seawater.

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Techno-economic analysis of combined ammonia-water absorption refrigeration and desalination

Cited by 65 publications

References 25 publications

Dynamic Modeling and Simulation of the Forward Feed MED-TVC Desalination Plant

Dynamic Modeling and Simulation of the Forward Feed MED-TVC Desalination Plant

Comparative study of Box–Behnken and central composite designs to investigate the effective parameters of ammonia–water absorption refrigerant system

Theoretical and experimental investigation of an absorption refrigeration and pre-desalination system for marine engine exhaust gas heat recovery

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