A novel approach using predictive models for performance analysis of desiccant enhanced evaporative cooling systems

Sohani, Ali; Sayyaadi, Hoseyn; Balyani, Hamidreza Hasani; Hoseinpoori, Sina

doi:10.1016/j.applthermaleng.2016.06.121

Cited by 69 publications

(19 citation statements)

References 28 publications

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“…According to simulation results, LDEOS could save 12% of primary energy as compared to conventional VAV. Sohani et al 71 have performed a comprehensive study on the factors affecting the different performance parameters of the DEVap system. DEVap's overall performance is evaluated using five soft computing and statistical methods (SCST), like genetic programming (GP), artificial neural network (ANN), multiple linear regression (MLR), group method of data handling (GMDH), and stepwise regression method.…”

Section: Liquid Desiccant System With the Indirect Evaporative Coolermentioning

confidence: 99%

Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

Kalpana

Subudhi

2021

Intl J of Energy Research

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The vapor compression air conditioning (VCAC) is the most widely used method for space cooling. However, it has some disadvantages, such as the fact that it consumes more electricity, depletes the ozone layer, and contributes to global warming. The liquid desiccant system using an evaporative cooler is a better replacement for a VCAC because it is cost-effective and environmentally sustainable. This paper initially introduces the fundamental principles of desiccant cooling and different types of liquid desiccant systems. Then, the desiccant systems using evaporative coolers are comprehensively reviewed. Finally, the assessment of system performances by different researcher's works is evaluated. It is observed from the review work that the liquid desiccant cooling system (LDCS) using an evaporative cooler could save energy consumption compared to VCAC. Highlights• Liquid desiccant dehumidifiers integrated with evaporative coolers are discussed.• LD dehumidifier integrated with evaporative cooler is an energy-efficient alternative in hot and humid areas.• DEVap system saves 2% to 3% of the annual energy.• The use of an LD dehumidifier in conjunction with an M-cycle IEC increases dehumidification.

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Section: Liquid Desiccant System With the Indirect Evaporative Coolermentioning

confidence: 99%

Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

Kalpana

Subudhi

2021

Intl J of Energy Research

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“…It was found that when the air-to-inlet ratio of the second stage is increased, there is an equality of performance criteria, so it has an optimal value. 21,22 Also A. Abdalisousan et al come up with a particle swarm in a new possible way. Optimization (PSO) was investigated to achieve economic optimization and in this study, the economic analysis of combined cycle power plants was performed using classical optimization.…”

Section: Petrakopoulou Et Al Have Investigated Common Exergy Analysimentioning

confidence: 99%

Exergoeconomic analysis and optimization of reverse osmosis desalination integrated with geothermal energy

Hoseinzadeh

Yargholi

Kariman

et al. 2020

Env Prog and Sustain Energy

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In this research, the integrated carbon dioxide power cycle with the geothermal energy source to supply the required reverse osmosis desalination power for freshwater production is defined. The cycling power is consumed by the desalination system and sodium hypochlorite generator. Exergoeconomic analysis, and optimization are studied. Exergoeconomic analysis is shown that the desalination system, sodium hypochlorite generator, carbon dioxide turbine, and natural gas turbine have the highest rate for the sum of capital gain and exergy destruction cost. For the first case of optimization, the total cost rate is considered as the objective function. The optimal inlet discharge rate of sodium hypochlorite generator was 62% of the brine water outlet discharge rate of the desalination system. Plus, the total cost rate is reduced by 10% compared to the general case when 100% of brine water discharge rate of the desalination system enters into the sodium hypochlorite generator. The second case is multiobjective optimization to reduce costs and increase productivity.

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“…Although desiccant wheel is a key component of desiccant evaporative cooling (DEC) system, but analysis of complete cooling system is often focused instead of comprehensive analysis of individual desiccant component [18][19][20][21][22][23]. Furthermore, precise prediction of desiccant wheel performance in transient energy system simulations for DEC systems is also of prime importance.…”

Section: --------------mentioning

confidence: 99%

Experimental and model based performance investigation of a solid desiccant wheel dehumidifier in subtropical climate

Chaudhary¹,

Ali²,

Ashiq³

et al. 2019

THERM SCI

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This paper presents real time performance analysis of a silica gel based desiccant wheel dehumidifier. Thermodynamic model is also validated through comparison under a wide range of operating conditions for subtropical climate conditions. Initially, a mathematical model is developed by using various set of equations for desiccant wheel dehumidifier in engineering equation solver. Afterwards, a parametric analysis of the system is performed including various design and climate parameters such as: inlet air humidity ratio, inlet air temperature, regeneration inlet humidity ratio, regeneration temperature, and rotation speed of the wheel. Then, an experimental setup of the system is established in Taxila Pakistan for the real-time performance assessment. The results revealed that the optimal rotation speed of desiccant wheel ranged from 15-17 rph. The maximum model based and experimental effectiveness is 0.45 and 0.43, respectively at regeneration temperature of 80 °C. The maximum and minimum root mean square error values for effectiveness are 3.2% and 2.1%, respectively. Thus, the comparison between experimental and model results showed a good agreement.

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A novel approach using predictive models for performance analysis of desiccant enhanced evaporative cooling systems

Cited by 69 publications

References 28 publications

Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

Developments in liquid desiccant dehumidification system integrated with evaporative cooling technology

Exergoeconomic analysis and optimization of reverse osmosis desalination integrated with geothermal energy

Experimental and model based performance investigation of a solid desiccant wheel dehumidifier in subtropical climate

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