Experimental study of a personal cooling system integrated with phase change material

Qiao, Yiyuan; Cao, Tao; Muehlbauer, Jan; Hwang, Yunho; Radermacher, Reinhard

doi:10.1016/j.applthermaleng.2020.115026

Cited by 27 publications

(10 citation statements)

References 35 publications

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“…From the results of several tests, the authors certified that the capacities of the condenser were very similar amongst the different analyzed types, with variances lower than 5%. Similar applications have been analyzed in the works of Dhumane et al [25,26] and Quiao et al [27].…”

Section: Introductionmentioning

confidence: 58%

Experimental Characterization and Numerical Simulation of a Low-Scale Personal Cooling System with Integrated PCM

Miccoli,

Cavargna,

Mongibello

et al. 2024

Energies

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Phase Change Materials (PCMs), among the existing thermal storage technologies, are characterized by higher storage densities than conventional storage systems, and absorb and release thermal energy at nearly constant temperatures. In recent years, the potential advantages that can be obtained by the integration of these materials into refrigeration machines have attracted the attention of specialized literature. Indeed, PCMs can allow a more efficient operation through an appropriate increase in thermal inertia, for applications relative to air conditioning in both internal residential environments and inside vehicles for the transport of people, and also in the case of machines used in the field of food refrigeration. Furthermore, in recent years, innovative solutions with integrated PCM have also been analyzed, aiming at enhancing the usability and transportability of refrigeration systems, as well as increasing the energy efficiency and reducing environmental impact. In this context, the present work focuses on the experimental characterization and numerical simulation of a cooling system with integrated PCM. In particular, the cooling system, designed for a personal cooling application, is experimentally analyzed by varying the configuration of the PCM-based condenser, while the numerical simulations have been realized to validate a simulation tool that could be used for the design and optimization of the PCM condenser configuration. The results allow us to identify the main characteristics of the analyzed personal cooling system, namely, the cooling capacity and operating autonomy, and to point out the utility and the limits of the developed simulation tool. Among the various configurations analyzed, the best one in terms of refrigeration power and autonomy is the one characterized by the highest heat transfer surface of the heat exchanger, with the refrigerant compressor at 50% power.

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Section: Introductionmentioning

confidence: 58%

Experimental Characterization and Numerical Simulation of a Low-Scale Personal Cooling System with Integrated PCM

Miccoli,

Cavargna,

Mongibello

et al. 2024

Energies

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“…Results proved that, within a week of hot climate, a reduction of 74.5% in heat transferred accumulated at the interior surface of the novel PCM wall can be achieved, compared to a conventional wall. Qiao et al [89] established a personal cooling system (PCS) integrated with PCM heat exchanger (PCMHX) as an active cooling system for local residential zones. The system comprises a vapor compression cycle where an enhanced compressed expanded natural graphite (CENG) shell-and-tube heat exchanger, filled with organic PCM, is located between the compressor and the expansion valve serving as a condenser in the cooling cycle.…”

Section: Active Laboratory-based Applicationsmentioning

confidence: 99%

A Summary Review on Experimental Studies for PCM Building Applications: Towards Advanced Modular Prototype

et al. 2022

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The use of phase change material (PCM) as a thermal energy storage system integrated in new buildings, and as retrofits in old buildings, proved its merit as promising renewable energy source. Heating and cooling building applications of PCM have been studied by plenty of scientists, globally, on the basis of numerical and experimental analysis. The performed experiments have mainly focused on one application—active or passive—using permanent prototype design for a certain duration and weather condition. The current study is a new review that focuses on two complementary aspects: (1) Reviewing latest studies in PCM domain and assessing the thermal performance of implemented prototypes within the conducted PCM experimental studies, namely, the effect of the design on the number of acceptable variables and possible PCM applications; and (2) suggesting a new, advanced, flexible, and modular prototype designed to enable several applications of PCM to be adapted and combined within the model. It was implied that the new design allows different configurations that are lacking in the literature and serves for future PCM building applications of thermal analysis towards PCM integration optimization, as an attempt for transforming residential compartments into net zero energy buildings. The designed prototype overcomes the deficiencies found in previous reviewed experimental facilities.

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“…Their system utilizes computational fluid dynamics and Fanger's thermoregulation model to simulate heat loss from the human body. Moreover, Qiao et al [33] proposed a novel personal cooling vest incorporated with phase change materials and ventilation fans. Also, appropriate HVAC control enhances productivity [34] and learning performance [35], [36] in office buildings and schools.…”

Section: E Applications Using Estimated Tsvmentioning

confidence: 99%

TSVNet: Combining Time-Series and Opportunistic Sensing by Transfer Learning for Dynamic Thermal Sensation Estimation

2021

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Experimental study of a personal cooling system integrated with phase change material

Cited by 27 publications

References 35 publications

Experimental Characterization and Numerical Simulation of a Low-Scale Personal Cooling System with Integrated PCM

Experimental Characterization and Numerical Simulation of a Low-Scale Personal Cooling System with Integrated PCM

A Summary Review on Experimental Studies for PCM Building Applications: Towards Advanced Modular Prototype

TSVNet: Combining Time-Series and Opportunistic Sensing by Transfer Learning for Dynamic Thermal Sensation Estimation

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