A new thermal–hydraulic process for solar cooling

Martins, Matthieu; Mauran, Sylvain; Stitou, Driss; Neveu, Pierre

doi:10.1016/j.energy.2011.05.030

Cited by 13 publications

(5 citation statements)

References 3 publications

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Section: Dynamic Process Modellingmentioning

confidence: 99%

“…The concept of equivalent Gibbs systems drawn from the thermodynamics of irreversible process [13] is described and applied here to the OTEC process. This method has already been used to model a conventional single-stage compression chiller [12] and a thermalhydraulic process for solar cooling, 'CHV3T' [13]. A further Equivalent Gibbs systems for modeling an OTEC experimental plant on La Reunion M. Martins, F. Sinama and F. Lucas study of a new OTEC process called 'CAPILI' has also been conducted with the equivalent Gibbs systems [14].…”

Section: Dynamic Process Modellingmentioning

confidence: 99%

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Equivalent Gibbs systems for modelling an onshore OTEC experimental plant on Reunion Island

Martins¹,

Sinama²,

Lucas³

2012

Int. J. Energy Res.

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SUMMARY Reunion Island is heavily dependent on fossil fuels, but seeks to become energy self‐sufficient by 2025. ocean thermal energy conversion provides a means of producing electricity that harnesses the available energy of the ocean by using the temperature gradient between its deep and its upper layers. This paper presents the projected experimental facility which is to be installed at the University of St. Pierre on Reunion Island. A dynamic model of the installation has been developed (on a Delphi interface) by using the concept of equivalent Gibbs systems. In such equivalent system, mass, energy, and entropy are linked through the Gibbs equation, and the entropy production can easily be expressed in terms of fluxes and their related forces. Assuming linear phenomenological laws, the phenomenological coefficients are assessed from technical data. Using a digital tool (Genopt), an optimization study has been conducted in order to determine the best operating parameters according to the temperature of the sea water. This model allows us to anticipate the potential of this technology on Reunion Island. Once validated on the facility, the model will serve as a tool to assist design of the future 10 MW pilot plant planned for 2014. Copyright © 2012 John Wiley & Sons, Ltd.

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Section: Dynamic Process Modellingmentioning

confidence: 99%

Section: Dynamic Process Modellingmentioning

confidence: 99%

Equivalent Gibbs systems for modelling an onshore OTEC experimental plant on Reunion Island

Martins¹,

Sinama²,

Lucas³

2012

Int. J. Energy Res.

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“…This thermochemical process, called adsorption, is based on a reversible chemical reaction between a solid reactive and a gas, allows to store thermal energy in a chemical potential form, which subsequently makes it possible to produce cold. This process is well documented and has already been implemented for several applications, such as solar air conditioning, solar ice making or deep-freezing [17]- [21].…”

Section: Introductionmentioning

confidence: 99%

Technical economic analysis of PV-driven electricity and cold cogeneration systems using particle swarm optimization algorithm

Perrigot

Périer-Muzet

Ortéga

et al. 2020

Energy

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Three different studies are presented in this paper. As a first step, a Particle Swarm Optimization (PSO) algorithm is used to optimize a prototype of cold/electricity cogeneration designed to be disconnected from the grid and implanted in an insular tropical region where a high need of cold and electricity is required. The electricity is provided by solar photovoltaic panels and the electrical energy in excess is stored in the form of hydrogen thanks to an electrolyzer. When a lack of electricity occurs a fuel cell provides the missing electricity by using the stored hydrogen. An electrically driven heat pump is also used to produce and cover the cold needs. Finally, in order to increase the overall efficiency of this electricity/cold cogeneration system, the low-grade waste heat generated by the different components of the system, mostly the electrolyzer and the fuel cell, is recovered and upgraded by a thermochemical reactor enabling a further cold production. The thermochemical reactor assists the heat pump for the cold supply, decreasing thus the electricity consumption. Such a prototype is intended to be built in Tahiti during the RECIF project. The PSO algorithm has been implemented and results are promising because component's size is reasonable, and the driving strategy is consistent while both demands are always satisfied. In a second study, the same PSO algorithm has been used to perform an analysis and identify a general shape of load profiles for which it become interesting, from an economic point of view, to store electricity into hydrogen instead of electrochemical batteries when the cold production is only handled by a heat pump. This study has shown that

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“…Among the thermo-hydraulic liquid piston systems recently patented we note; CHV3T [9] and CAPILI [10]. The first one has been designed for solar cooling [11] while the second one has been implemented either for residential [12] or for OTEC (Ocean Thermal Energy Conversion) electrical productions [13], [14]. In our previous work, the performance of CAPILI engine for an OTEC application has been studied first by considering the state energy balance for the selection of the suitable working fluid.…”

Section: Introductionmentioning

confidence: 99%

Implementation and Experimental Results of the New Thermo-Hydraulic CAPILI Pilot

Semmari¹,

Stitou²,

Mauran³

2016

IJOEE

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After modeling and evaluating performances of the new thermo-hydraulic process "CAPILI" in the previous work, we are proposing the implementation of the first CAPILI experimental pilot in order to check the real behavior of the new patented process for a specific residential application. The obtained experimental results are extremely useful and will be harnessed in future works for analytical development of hydraulic motor resistance. Then, the validation and the calibration of the simulation method, which has been used to evaluate CAPILI performance for OTEC application, are checked. So, the CAPILI pilot will be described first. Then, experimental results will be presented and discussed. 

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A new thermal–hydraulic process for solar cooling

Cited by 13 publications

References 3 publications

Equivalent Gibbs systems for modelling an onshore OTEC experimental plant on Reunion Island

Equivalent Gibbs systems for modelling an onshore OTEC experimental plant on Reunion Island

Technical economic analysis of PV-driven electricity and cold cogeneration systems using particle swarm optimization algorithm

Implementation and Experimental Results of the New Thermo-Hydraulic CAPILI Pilot

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