Influence of the desiccant wheel effectiveness method approaches, with fix and variable effectiveness parameters, on the performance results of an airport air-conditioning system

Ruivo, Celestino Rodrigues; Hernández, Francisco Fernández; López, José Manuel Cejudo

doi:10.1016/j.enconman.2015.01.090

Cited by 17 publications

(9 citation statements)

References 27 publications

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“…In a simulation of a VAV air conditioning system, using the frequency response method, Yao and Wang [41] have assumed the indoor air temperature to be kept constant throughout the year. Conversely, Ruivo et al [42] in simulations, with TRNSYS, of a VAV air conditioning system of an airport terminal, assumed two constant values of indoor air temperatures in agreement with the cooling and heating operating modes. Different control strategies of the air conditioning system were taken into account in the system simulations addressed in the work of Ruivo and co-workers.…”

Section: Final Remarksmentioning

confidence: 96%

See 1 more Smart Citation

Prediction of the heat gain of external walls: An innovative approach for full-featured excitations based on the simplified method of Mackey-and-Wright

Ruivo

Vaz

2015

Applied Energy

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Section: Final Remarksmentioning

confidence: 96%

“…In what regards the application of the innovative approach to the case investigated by Ruivo et al [42], it would be important to evaluate the error of the thermal loads predicted during the period of two or three days after the changeover between heating and cooling modes.…”

Section: Final Remarksmentioning

confidence: 99%

Prediction of the heat gain of external walls: An innovative approach for full-featured excitations based on the simplified method of Mackey-and-Wright

Ruivo

Vaz

2015

Applied Energy

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“…As future work, investigation into the optimization of the desiccant system and the improvement of dehumidification/humidification performance by numerical analysis [11,18] will be accomplished.…”

Section: Discussionmentioning

confidence: 99%

“…This has been reported as an effective method for reducing the degradation of the Indoor Air Quality (IAQ), which is caused by microbes, such as mold or bacteria [1][2][3][4]. In addition, many studies have been conducted on the application of desiccant air-conditioning systems as dedicated outdoor air systems (DOASs) during the summer [5][6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Field Study on Humidification Performance of a Desiccant Air-Conditioning System Combined with a Heat Pump

Kawamoto¹,

Cho

Kohno

et al. 2016

Energies

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A desiccant air-conditioning system was developed as a latent-load-processing air conditioner in a dedicated outdoor air system during the summer. This study investigated the application of this air-conditioning system to humidification during the winter without using make-up water, thereby eliminating the cause of microbial contamination in air-conditioning systems. The experiments were conducted with a system used for summer applications to determine the feasibility of adsorbing vapor from outdoor air and supplying it to an indoor space. The humidification performance, energy efficiency, and operating conditions were examined. Although the conditions were subpar because the experiments were performed with an actual dedicated outdoor air system, the results showed that it is possible to supply air with a minimum humidity ratio of 5.8 g/kg dry air (DA) when the humidity ratio of outdoor air ranges from 1.8 to 2.3 g/kg DA. The minimum humidification performance required for a dedicated outdoor air system was achieved by increasing the airflow rate of the moisture-adsorption side to 2-3 times that of the humidification side. In addition, air leaking from the moisture-adsorption side to the humidification side, improving the mechanical structure, such as by the insulation of the moisture-adsorption side, and an efficient operating method were examined for humidification during the winter.

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“…Different models of the desiccant wheel have been developed by many researchers over the years [30][31][32]. In this work, the operation of the desiccant wheel is simulated using the Type 1716 (component of the TESS library), containing a model based on the equations for F1 and F2 potentials developed by Jurinak [33]:…”

Section: Desiccant Wheel Modelmentioning

confidence: 99%

Experimental Validation of the Simulation Model of a DOAS Equipped with a Desiccant Wheel and a Vapor Compression Refrigeration System

2017

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A dedicated outdoor air system (DOAS) can be designed to supply 100% of the outside air and meet the latent load of the room with dry air. The objectives of this study were to develop a model of a DOAS equipped with a desiccant wheel and a vapor-compression refrigeration system, build a prototype, validate the model with experimental data, and gain knowledge about the system operation. The test facility was designed with the desiccant wheel downstream of the cooling coil to take advantage of the operating principles of cooling coils and desiccants. A model of the DOAS was developed in the TRNSYS environment. The root mean standard error (RMSE) was used for model validation by comparing the measured air and refrigerant properties with the corresponding calculated values. The results obtained with the developed model showed that the DOAS was able to maintain an indoor humidity ratio depending on outdoor conditions. Laboratory tests were also used to investigate the effect of changes in the regeneration air temperature and the process airflow rate on the process air humidity ratio at the outlet of the wheel. The results are consistent with the technical literature.

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Influence of the desiccant wheel effectiveness method approaches, with fix and variable effectiveness parameters, on the performance results of an airport air-conditioning system

Cited by 17 publications

References 27 publications

Prediction of the heat gain of external walls: An innovative approach for full-featured excitations based on the simplified method of Mackey-and-Wright

Prediction of the heat gain of external walls: An innovative approach for full-featured excitations based on the simplified method of Mackey-and-Wright

Field Study on Humidification Performance of a Desiccant Air-Conditioning System Combined with a Heat Pump

Experimental Validation of the Simulation Model of a DOAS Equipped with a Desiccant Wheel and a Vapor Compression Refrigeration System

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