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Theoretical Prediction of Optimum Chilled Water Distribution Configuration in Air Conditioning Terminal Unit
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 The distribution of chilled water flow rate in terminal unit is a major factor used to evaluate the performance of central air conditioning unit. In this work, a theoretical chilled water distribution in the terminal units has been studied to predict the optimum heat performance of terminal unit. The central Air-conditioning unit model consists of cooling/ heating coil (three units), chilled water source (chiller), three-way and two-way valve with bypass, piping network, and pump. The term of optimization in terminal unit ingredient has two categories, the first is the uniform of the water flow rate representing in statically permanents standard deviation (minimum value) and the second category is the maximum heat transfer rate from all terminal units. The hydraulic and energy equations governing the performance of unit solved with the aid of FORTRAN code with considering the following parameters: total water flow rate, chilled water supply temperature, and variable valve opening. It was found that the optimum solution of three-way valve case at 8°C water supply temperature, 0.12 kg/s total water flow rate and valve opening order (valve 1: 100%, valve 2: 100% and valve 3: 75%) with total heat rate (987.92 Watt) and standard deviation (1.181E-3). Also, for the two-way valve case the results showed that the optimum condition at 8°C water supply temperature, 0.12 kg/s total water flow rate and valve opening order (valve 1: 75%, valve 2: 75% and valve 3: 50%) with total heat rate and standard deviation (717Watt) and (5.69E-4) respectively.

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Publication Date
Mon Dec 01 2008
Journal Name
Political Sciences Journal
العولمة وآليات حراكها في الوطن العربي
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العولمة وآليات حراكها في الوطن العربي

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Publication Date
Sun Mar 10 2024
Journal Name
The International And Political Journal
التغيرات المناخية وتأثيرها في النزاعات الدولية
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يظل التغير المناخى التحدى الأكثر أهمية للإنسانية فى الأيام المقبلة ، والأكثر صعوبة في معالجة تداعياته ليس فقط بسبب جوهره البعيد عن الإرادة الإنسانية، كونه معبرا عن غضب الطبيعة، وإنما بسبب القصور الذي لا يزال يهيمن على السياسات الدولية، خاصة الدول الكبرى فى صراعاتها المستمرة، وكذلك على سلوكيات الأفراد التي تعكس غياب ثقافة التعامل مع البيئة ومكوناتها على النحو الأمن ، وسيظل رهناً بوعي الدول بمسؤلياتها ووعي

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Publication Date
Sun Jan 13 2019
Journal Name
Arab Science Heritage Journal
الشياطين الشريرة السبعة في بلاد الرافدين
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جاءت لفظة شيطان في اللغة العربية من الفعل شطن: ويعني الحبل، وقيل الحبل الطويل الشديد الفتل يُستقى به وتُشد به الخيل، والجمع أشطان، وقيل الشيطان فعلان من شاطَ يَشيط إذا هلك وإحترق، قال: الازهري الاول اكثر، قال: والدليل على انه من شَطَنَ قول امية بن ابي الصلت يذكر سليمان النبي (عليه السلام): ايما شاطِنٍ عصاه عَكاه(1)، في حين تطلق لفظة شيطان على الكائن الخارق للطبيعة او الروح، واصلها الاغر

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Publication Date
Sat Oct 27 2018
Journal Name
Journal Of Planner And Development
الميدان وتأثيـــــره في حيويـــة المدينة ومركزهــــا
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Publication Date
Thu Oct 25 2018
Journal Name
Journal Of Planner And Development
التحول في المنظومة الجينية للمناطق التراثية
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Publication Date
Wed Oct 04 2023
Journal Name
Arab Science Heritage Journal
أسس المعيارية في التراث اللغوي العربي
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The Arabs took care of the Arabic language, collected it, and set standards governing it; This is for fear of melody, in order to preserve the language of the Noble Qur’an from distortion, after many of those who are not fluent in Arabic entered Islam; There were many reasons for setting linguistic standards, but although scholars set these standards, we see them often deviate from them, as well as the language’s departure from these restrictions that they set, because language cannot be restricted, as it is subject to the law of use.

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Publication Date
Mon Dec 26 2022
Journal Name
Arab Science Heritage Journal
الممكنات الإنجازية في أدوار الحوار القرآني
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The science of The facts basically depends on the intentions of the speaker and what he deliberately waves to the interlocutor, taking into account the context in which the verbal act was received .

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Publication Date
Mon Sep 25 2023
Journal Name
Arab Science Heritage Journal
التجارة في فكر عبد الاله حافظ
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The study consisted of an introduction، two chapters and a conclusion

   The first، tagged topic (: His lineage، birth، and family)، traces the lineage، birth، and family of Abd al-Ilah Hafez.

The second topic، which came under the title (The Role of Abd al-Ilah Hafez in the printing of currency)، was concerned.

 The study relied on a large number of unpublished documents، foremost of which are the documents of the Central Bank of Iraq. It contained a lot of information about its administrative activity، its positions، orders and plans in this direction.

 The House of Books and Documents is considered Al-Manhal، which is indispensable for any research to study the royal his

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Publication Date
Mon Jan 23 2023
Journal Name
Arab Science Heritage Journal
الممكنات الإنجازية في أدوار الحوار القرآني
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    The science of The facts basically depends on the intentions of the speaker and what he deliberately waves to the interlocutor, taking into account the context in which the verbal act was received .

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Publication Date
Sun Apr 01 2007
Journal Name
Journal Of Educational And Psychological Researches
الاكتئاب لدى النساء العاملات في بغداد
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ان في هذه الاية الكريمة لآبلغ وصف للاكتئاب حيث الضيق الشديد والشعور باليأس من الدنيا والوحدة .

وقال المتنبي :.

كفى بك داء ان ترى الموت شافياً

وحسب المنايا ان يكن امانيا

وقال مجنون ليلى :.

وامطر في التراب سحاب جفني

وقلبي في هموم واكتئاب

الحزن والقلق والهم والغم جزء من حياة الناس وهناك كثير من العوامل الممه

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