Modeling of humidification-dehumidification (HDH) desalination systems with bubblecolumn dehumidifier

  • سال انتشار: 1402
  • محل انتشار: سی و یکمین همایش سالانه بین­ المللی مهندسی مکانیک ایران و نهمین همایش صنعت نیروگاهی ایران
  • کد COI اختصاصی: ISME31_209
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 142
دانلود فایل این مقاله

نویسندگان

Alireza Naeini

M.Sc. student, School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran;

Alireza Jalali

Assistant professor, School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran;

Ehsan Houshfar

Associate professor, School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran;

چکیده

Population growth and the industrialization of societiesare among the factors that significantly increase thedemand for freshwater consumption. Using desalinationdevices is one of the solutions to meet this demandincrease. Humidification-dehumidification (HDH)systems are superior to other desalination methods due totheir simple and flexible design, low costs, the ability touse low-temperature energy sources, and the possibility ofbeing used in remote areas. In the current study, themodeling of an HDH system with a bubble columndehumidifier has been done. Due to direct contactbetween the air and water bubbles, the bubble columndehumidifier has a much higher heat and mass transfercoefficient than conventional dehumidifiers. The effect ofdifferent parameters on system performance was studied.The gain output ratio (GOR) of ۳ is obtained with a toptemperature of ۶۵ and a bottom temperature of ۴۵.Increasing the high temperature has the opposite effect onthe GOR of the system. However, enhancing the watercarryingcapacity by air increases water production.Increasing the pipe length and the number of dehumidifiertrays increases the performance and cost of the system.Each set of operating parameters has a specific mass flowrate ratio to optimize system performance. This mass flowminimizes the imbalance in the dehumidifier, and in otherwords, the heat capacity ratio of the dehumidifier (HCRd)becomes equal to one.

کلیدواژه ها

humidification-dehumidification (HDH),bubble column, sensitivity analysis, thermodynamicmodeling, desalination

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.