عنوان المقالة:تقليل متطلبات المياه المستخدمة في منظومات التبريد المفتوحة و الهجينة لاقل قيمة لوحدة الطاقة ذات الدورة المركبة العاملة بالغاز الطبيعي مع ادخال تاثير وحدة استخلاص الكاربون An optimization for water requirement in natural gas combined cycle power plants equipped with once-through and hybrid cooling systems and carbon capture unit
سيف واثق محمد علي الطريحي, ناصر فهيدي, كارلوس روميروس, البارسلان اوزتيكن
English Authors
Saif W. Mohammed Ali , Nasser Vahedi , Carlos Romero, Alparslan Oztekin
Abstract
تطوير معادلة رياضية لتقليل كمية المياه المستخدمة في منظومات التبريد المفتوحة والهجينة المتصلة بوحدة انتاج طاقة ذات دورة مركبة عاملة بالغاز الطبيعي مع ادخال تاثير وحدة استخلاص الكاربون في هذه الدراسة.
Abstract
A water-energy nexus analysis for a Natural Gas Combined Cycle power plant equipped with Post-
Combustion Carbon Capture unit was studied. Once-through and hybrid indirect dry and wet cooling systems
were considered. An optimization model was developed to minimize the water requirement in each
of the cooling system. The model and numerical method were validated with previously reported experimental
measurements. In once-through cooling system, the optimized mass flow rates were slightly less
than the original operating condition. For hybrid cooling system, the effects of air to water ratio, humidity
content, air wet bulb temperature, and the number of cycles of concentration on the water requirements
were studied for a wide range of cooling load split factors. The difference in water requirement becomes
insignificant when the cooling load exceeds 60%. It was shown that the increase in the number of cycles
of concentrations reduces water losses within 5–6 cycles. It is recommended to consider dynamic control
for the cooling system using the developed optimization algorithm to maintain optimum operating conditions.
For the once-through cooling system, maintaining the least water withdrawal while protecting
aquatic life is suggested. For hybrid cooling systems, keeping the split factor below 0.5 and optimizing
water consumption and power penalty are recommended.
سيف واثق محمد علي علي الطريحي | Saif Watheq Mohammed Ali Alturaihi | 2642