• electrothermal performance of an activated carbon honeycomb monolith

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 852
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    • شماره تماس دبیرخانه رویداد: -
     the main advantage of electric swing adsorption (esa) process is related to the fast heating rates that can be achieved by joule effect. since this heating is done by passing electricity, its utilization should be efficient to reduce the overall losses of the system. this work discusses the heat transfer phenomena of an electric swing adsorption (esa) process in order to improve the overall energetic efficiency of the unit. experiments were done with an activated carbon honeycomb monolith and testing different electrodes and column arrangements. the experimental set-up with lower electrical resistance has shown lower losses: faster heating rates can be achieved and less heat is lost by natural convection to the surroundings. brass electrodes employed with a teflon® support have resulted in lower energy losses. results obtained in a laboratory-scale unit allowed a heating efficiency of 52% employing an average power of 293 w. most of the energy losses were to the electrodes and surroundings, reason why if the process is scaled-up, the efficiency of the unit should be better. furthermore, the mass of adsorbent/mass of electrodes ratio can be reduced and then the overall efficiency can be increased up to 83%.

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