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نویسندگان مقالات پربازدید :
مهندسی حرارتی کاربردی
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • performance assessment of a novel hybrid district energy system

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 667
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this paper, a new hybrid system for improving the efficiency of geothermal district heating systems (gdhss) is proposed. this hybrid system consists of biogas based electricity production and a water-to-water geothermal heat pump unit (ghpu), which uses the waste heat for both heating and domestic hot water purposes. electricity generated by the biogas plant (bp) is utilized to drive the gdhs's pumps, bp systems and the heat pump units. both the biogas reactor heating unit and the heat pump unit utilize the waste heat from the gdhs and use the system as a heat source. the feasibility of utilizing a hybrid system in order to increase the overall system (gdhs + bp + ghpu) efficiency is then investigated for possible efficiency improvements. the edremit gdhs in turkey, which is selected for investigation in this case study, reinjects 16.8 mw of thermal power into the river at a low temperature; namely at 40 °c. such a temperature is ideal for mesophilic bacterial growth in the digestion process during biogas production. 1.45 mw of biogas based electricity production potential is obtainable from the waste heat output of the edremit gdhs. the average overall system efficiencies through the utilization of this kind of hybridized system approach are increased by 7.5% energetically and 13% for exergetically.

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