Energy and exergy analysis on modified closed wet cooling tower in Iraq
العناوين الأخرى
تحليل الطاقة و الطاقة المتاحة على برج تبريد رطب مغلق مطور في العراق
المؤلفون المشاركون
Jaffal, Haydar Muhammad
Mahdi, Qasim Salih
المصدر
al-Khwarizmi Engineering Journal
العدد
المجلد 12، العدد 2 (30 يونيو/حزيران 2016)، ص ص. 45-59، 15ص.
الناشر
جامعة بغداد كلية هندسة الخوارزمي
تاريخ النشر
2016-06-30
دولة النشر
العراق
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
The present study involves experimental analysis of the modified Closed Wet Cooling Tower (CWCI) based on first and second law of thermodynamics, to gain a deeper knowledge in this important field of engineering in Iraq.
For this purpose, a prototype of CWCT optimized by added packing under a heat exchanger was designed, manufactured and tested for cooling capacity of 9 kW.
Experiments are conducted to explore the effects of various operational and conformational parameters on the towers thermal performance.
In the test section, spray water temperature and both dry bulb temperature and relative humidity of air measured at intermediate points of the heat exchanger and packing.
Exergy of water and air were calculated by applying the exerg)' destruction method an the cooling tower.
Experimental results showed a significant performance improvement when using packing on the CWCT.
It can be observed that the thermal efficiency for the CWCT with packing under a heat exchanger and CWCT with packing above the heat exchanger are approximately 40% and 25% higher than that of the CWCT without packing respectively.
As another part of the experiment results, it is indicated that the exerg}- destruction is directly proportional to air flow rate, cooling water flow rate, inlet cooling water flow rate and inlet Air Wet Bulb Temperature (AWBT) whereas, it is inversely proportional with spray water flow rate.
In comparison with the cooling capacity of the tower, it was found that the exergy destruction approximately less than 20 %.
Exergy efficiency behavior is inversely proportional with the behavior of the exergy destruction.
Empirical correlations are obtained to predict water film heat transfer coefficient and air- water mass transfer coefficient considering the influences of operational parameters.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mahdi, Qasim Salih& Jaffal, Haydar Muhammad. 2016. Energy and exergy analysis on modified closed wet cooling tower in Iraq. al-Khwarizmi Engineering Journal،Vol. 12, no. 2, pp.45-59.
https://search.emarefa.net/detail/BIM-698049
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mahdi, Qasim Salih& Jaffal, Haydar Muhammad. Energy and exergy analysis on modified closed wet cooling tower in Iraq. al-Khwarizmi Engineering Journal Vol. 12, no. 2 (2016), pp.45-59.
https://search.emarefa.net/detail/BIM-698049
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mahdi, Qasim Salih& Jaffal, Haydar Muhammad. Energy and exergy analysis on modified closed wet cooling tower in Iraq. al-Khwarizmi Engineering Journal. 2016. Vol. 12, no. 2, pp.45-59.
https://search.emarefa.net/detail/BIM-698049
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 57-58
رقم السجل
BIM-698049
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر