A computational and experimental investigation of air flow and contaminants concentration in a laboratory with mixing ventilation system
المؤلفون المشاركون
Khadim, Muhammad W.
Hasan, Ammar A. Muhammad
Mahdi, Ala A.
المصدر
العدد
المجلد 9، العدد 3 (31 يوليو/تموز 2018)، ص ص. 201-222، 22ص.
الناشر
تاريخ النشر
2018-07-31
دولة النشر
العراق
عدد الصفحات
22
التخصصات الرئيسية
الملخص EN
In this research an experimental and computational analysis under Iraqi climate of temperature distribution, velocity and contaminants concentration in the air-conditioned laboratory have been studied for two case studies.
Case-I chosen internal combustion engine laboratory of dimensions (10.3 x 8.7 x 3.75) m with a different number of engines used in the experiments and Case-II chosen laboratory of chemical and petroleum products dimensions (3.7x3.6x3.3)m with different locations of the supply air terminal diffuser compared to the existing design situation.
ANSYS FLUENT 14 used to simulate the model's laboratories for compared between the present practical work and numerical work results which are acquired by using RNG K-ε and SST k-ω models and found that the SST k-ω model more accurate.
The SST (k-w) turbulence model were employed to solve the governing equations numerically with Reynold number 28,933 and validated by comparing the numerical results with experimental data, and this comparison gives a good agreement.
The numerical results for case-I compared with experimental data, while for case-II, the numerical results compared with the standard value due to Iraqi cooling code and ASHRAE standards.
The results showed that the mixing ventilation system is able to remove various types of pollutants effectively up to 90% in addition to providing human thermal comfort conditions with the effectively of heat removal up to 85% for the state of the internal combustion laboratory.
The second case at laboratory of chemical and petroleum products when the supply air terminal diffuser in the same side, the results showed an increase in comfort conditions by up to 40%.Lastly, from the research, it was found that the pollutant transportation and distribution depend in general upon several factors such as type and location of contaminant source, building geometry, the arrangement of air terminal diffuser opening, and thermal/fluid boundary conditions for example flow rate.
Numerical simulation of the velocity and diffusion fields in a conventional flow in laboratories is very useful in comprehending flow and diffusion patterns within different changes of the flow conditions
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mahdi, Ala A.& Khadim, Muhammad W.& Hasan, Ammar A. Muhammad. 2018. A computational and experimental investigation of air flow and contaminants concentration in a laboratory with mixing ventilation system. Kufa Journal of Engineering،Vol. 9, no. 3, pp.201-222.
https://search.emarefa.net/detail/BIM-901584
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mahdi, Ala A.…[et al.]. A computational and experimental investigation of air flow and contaminants concentration in a laboratory with mixing ventilation system. Kufa Journal of Engineering Vol. 9, no. 3 (Jul. 2018), pp.201-222.
https://search.emarefa.net/detail/BIM-901584
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mahdi, Ala A.& Khadim, Muhammad W.& Hasan, Ammar A. Muhammad. A computational and experimental investigation of air flow and contaminants concentration in a laboratory with mixing ventilation system. Kufa Journal of Engineering. 2018. Vol. 9, no. 3, pp.201-222.
https://search.emarefa.net/detail/BIM-901584
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 222
رقم السجل
BIM-901584
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