Modelling and dynamic simulation of a hybrid liquid desiccant system regenerated with solar energy

Coca-Ortegón, Adriana; Prieto, Juan Luis Ravé; Coronas, Alberto

doi:10.1016/j.applthermaleng.2015.10.149

Cited by 40 publications

(8 citation statements)

References 15 publications

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“…In this paper authors have simulated the system for Kuala Lumpur city of Shri Lanka in TRNSYS. [12] Figure 5 shows the implicit requirement is treated by a liquid-based dehumidification subsystem, while the perceptive requirement is handled through a cooling subsystem. The suggested system consists substitute systems as, the LiCl-H2O solution liquid desiccant system, which adsorb water from the input air.…”

Section: Liquid Desiccant Cooling Systemmentioning

confidence: 99%

A Technical Review of Available Desiccant Design Techniques

Sharma

Mishra

Verma

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Desiccant wheel system is a topic of research because of increased requirement in HVAC industry and in dehumidification industry. In HVAC industry desiccant cooling system operating on regenerating heat supply from renewable source as solar are making their impact and desiccant wheel plays important role as main part in dehumidification industry. It’s been approximately two decades since the desiccant wheel has made around in market for large level. Many designs and technologies are already available for desiccant wheels and some are available within the research and experiments only. This article provides a better understanding of available research and designs for desiccant wheel systems. Review for difference of liquid and solid desiccants operated cooling systems, various regenerating technologies used for desiccant different desiccant material and different materials for subtract of desiccant wheel, different construction design in terms of number of sectors and direction of air flowing in the desiccant sections prepared and discussed here. Apart from this various simulation models of desiccant systems studied based on mathematical models are studied here. Based on these reviews an effective conclusion is given for desiccant operated systems. At the end of the review future possibilities for advancement in desiccant industries are mentioned.

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Section: Liquid Desiccant Cooling Systemmentioning

confidence: 99%

A Technical Review of Available Desiccant Design Techniques

Sharma

Mishra

Verma

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Coca-Ortegoń et al presented and analyzed the modeling of hybrid LDS regenerated with solar energy. 12 The results indicated that the coefficient of performance of the system could be improved by 21.7% by changing the solution concentration from 0.44 to 0.385. Su et al applied the cascade analysis method to a compression-absorption refrigeration airconditioning system combined with LDS.…”

Section: ■ Introductionmentioning

confidence: 97%

“…Coca-Ortegón et al. presented and analyzed the modeling of hybrid LDS regenerated with solar energy . The results indicated that the coefficient of performance of the system could be improved by 21.7% by changing the solution concentration from 0.44 to 0.385.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of a Solar-Driven System Coupled with Liquid Dehumidification and Absorption Refrigeration Based on Advanced Exergy and Exergoeconomic Analyses

Wang

Yang

et al. 2023

ACS Sustainable Chem. Eng.

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A novel hybrid system coupled liquid dehumidification with absorption refrigeration driven by solar energy is proposed. Traditional and advanced exergy and exergoeconomic analyses of the system are conducted to ascertain the degree of irreversibility and potential improvement for each component. Based on the advanced exergy and exergoeconomic analyses, the effects of air humidity, segment temperature, and refrigeration temperature on the total exergy destruction and cost rates of the system are obtained. The total avoidable exergy destruction rate, avoidable exergy destruction cost rate, and avoidable investment cost rate of the system are selected as objective functions and optimized by using nondominated sort genetic algorithm-II. The results show that the total exergy destruction rate and the total exergy destruction cost rate reach 262.39 kW and 8.563 $/h, respectively. The generator and regenerator have higher cost rates of the irreversibility overall system, achieving the values 3.536 and 2.430 $/h, respectively. The absorber has the highest investment cost rate in the whole system. The endogenous parts of the exergy destruction and cost rates are much higher than the exogenous parts in the system. Multiobjective optimization results show that optimal values for the total avoidable exergy destruction rate and the exergy destruction cost rate are 50.99 kW and 1.60 $/h, which are 4.15 and 9.14% lower than those calculated by single-objective optimization, respectively. This study provides a potential way to utilize solar energy for dehumidification and refrigeration.

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“…With the increase of humidity and temperature, the quantity of regeneration decreases . Coca-Ortegón et al applied the data of Kuala Lumpur to simulate the system and found that the system has a COP of 2.19 …”

Section: Introductionmentioning

confidence: 99%

“…13 Coca-Ortegoń et al applied the data of Kuala Lumpur to simulate the system and found that the system has a COP of 2.19. 14 Many researchers combined the refrigeration system with the LDS to improve the performance of the LDS. Cheng et al used an evaporative cooling system to meet the cooling energy consumed by the LDS and found that the performance of the coupling system is 25% higher than the traditional LDS.…”

Section: ■ Introductionmentioning

confidence: 99%

Energy, Exergy, and Economic Analysis and Multiobjective Optimization of a Cascade Coupling System Driven by Low-Grade Waste Heat in Hot Summer and Cold Winter Areas of China

Wang

et al. 2021

ACS Sustainable Chem. Eng.

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This work proposes a cascade coupling system to recover low-grade waste heat. The hybrid system performs well in hot summer and cold winter areas of China. The economy, energy, and exergy analysis and multiobjective optimizations are conducted. Nondominated sorting genetic algorithm II is applied to realize the optimization process because of the contradiction between the three objective functions. The Pareto solutions are obtained, and the relationships between two different objectives are analyzed. The final optimal solutions are determined by the technique for order preference by similarity to an ideal solution method and the Shannon entropy method. Four schemes aiming at the maximum coefficient of performance (scheme 1), minimum total annual cost (scheme 2), minimum total exergy destruction (scheme 3), and multiobjective optimization (scheme 4) are studied. The results show that the minimum values of the total annual cost and the total exergy destruction are 57.73 × 10 4 $ and 336.91 kW, respectively. The maximum coefficient of performance is 0.61. The multiobjective optimization solutions achieve a 4.12% higher value than the minimum coefficient of performance, while the total annual cost and the total exergy destruction of solutions are 1.86 and 0.58%, respectively, lower than the maximum values. This work presents a deeper dissection and a multiobjective optimization of the cascade system and provides guidance for the development of low-grade waste heat recovery technologies.

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Modelling and dynamic simulation of a hybrid liquid desiccant system regenerated with solar energy

Cited by 40 publications

References 15 publications

A Technical Review of Available Desiccant Design Techniques

A Technical Review of Available Desiccant Design Techniques

Modeling and Optimization of a Solar-Driven System Coupled with Liquid Dehumidification and Absorption Refrigeration Based on Advanced Exergy and Exergoeconomic Analyses

Energy, Exergy, and Economic Analysis and Multiobjective Optimization of a Cascade Coupling System Driven by Low-Grade Waste Heat in Hot Summer and Cold Winter Areas of China

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