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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
Sun Dec 15 2024
Journal Name
Journal Of University Of Anbar For Humanities
الملائمة المناخية لزراعة محصول القطن في العراق
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الأهداف: معرفة مدى ملاءمة المتطلبات المناخية وتوفرها لزراعة القطن في العراق، مع بيان المناطق الأكثر ملاءمة وأقلها ملاءمة فضلاً عن المناطق المتوسطة الملاءمة، حيث إن دراسة علاقة المناخ وأثره على زراعة القطن من الموضوعات المهمة، لذا فإن النتائج التي نتوصل إليها من خلال هذه الدراسة تعد مهمة وتخدم الخطط والمشاريع الزراعية في المستقبل وذلك من خلال معرفة أهمية العلاقة بين المناخ وعناصره وزراعة القطن. المنهجية: اع

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Publication Date
Mon Nov 26 2018
Journal Name
Arab Science Heritage Journal
النبوة في منظور الدين اليهودي )دراسة موضوعية(
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 Prophecy, the Jews had another concept, does not limit to choosen from God, but expands to include all of the claims to prophethood of priests and magicians and liars, The word prophet in the eyes of the Jews view has abroad meaning, That included the prophets who were chosen by God to his message, in order to repair case Also those, who were of magicians, astrologer & hypocrites

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Publication Date
Tue Dec 01 2015
Journal Name
Journal Of Economics And Administrative Sciences
The Fraud under the fair value Exploratory Study
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The research aim is to identify the concept of fair value and its measurement approaches, shed light on the concept of fraud and its forms, motives, as well as how to identify fraud under the fair value method.

I have been using the program package SSPS statistical in the calculation of the research variables, and the research sample was a group of university professors and auditors working in the federal board of Supreme Audit. 

 The researcher has reached some conclusions, the most important; the lack of conclusive evidence about management's intent in adopting the use of fair value raises several doubts about the credibility of the statements prepared in under the fa

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Publication Date
Sun Jun 01 2008
Journal Name
Journal Of Economics And Administrative Sciences
بزوغ مفهوم الرضا الوظيفي في السلوك التنظيمي
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جديرة تلك المجلة العريقة (Journal of management history) لما تقوم به من دور متميز في تأصيل الفكر الاداري وتنسيب الموضوعات لأصحابها الحقيقيين. فالمجلد (12)، العدد (3) لعام (2006) من هذه المجلة حمل مراجعة تاريخية كبيرة لعنوان عميق هو
(The emergence of job satisfaction in organization behavior A historical overview of the dawn of jop attitudes research)، للباحث (Thomas A. Wright) الاستاذ في قسم العلوم الادارية بجامعة نيف

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Publication Date
Sun Jan 13 2019
Journal Name
Arab Science Heritage Journal
الأحجار الكريمة في القرآن الكريم و التراث
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أنزل ألله تعالى كتابه العزيز على رسوله محمد(ص) هداية للناس كافة وإنقاذا لهم من الكفر والشرك والضلال ، فبين لهم فيه أمور دينهم ودنياهم وميز لهم الحرام من الحلال ، وقصَ عليهم أخبار بعض الأمم السالفة قبلهم وما نزل بهم من عقاب جزاء

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Publication Date
Thu Jul 29 2021
Journal Name
Arab Science Heritage Journal
امارة الحج في عهد ابي جعفر المنصور
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When writing about the Emirate of Hajj in the Arab Islamic State, one must stop at the time period of Caliph Al-Mansour

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Publication Date
Sun Jun 18 2023
Journal Name
Arab Science Heritage Journal
أهل الذمة وأثرهم العلمي في العصر العباسي
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Non-Muslim scholars, who are Jews, Christians, Sabians and Magi, excelled in various pure scientific and human sciences, being the owners of civilizational inheritances. On the rest of the sciences in which non-Muslims excelled, namely mathematics, chemistry, astronomy, astrology, philosophy, history, and the Arabic language.

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Publication Date
Mon Oct 22 2018
Journal Name
Arab Science Heritage Journal
الرياضة الرياضة في الاندلس (ركوب الخيل انموذجا)
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              Riding in Andalusia was a sport emphasized by Islam. It also works to strengthen the muscles, prevent them from sagging, gain vitality and vitality, regulate blood circulation and improve brain and heart function. The research we discussed in the study is not limited to a particular class. Most Andalusian rulers practiced equestrian And they hold concerts and competitions of horse competition, as happened during the reign of Caliph al-Hakam al-Mustansir and Muzaffar ibn Abi Amer and the governor adopted Ben Abbad and the Caliph Muhammad bin Bani al-Ahmar, the governor of the city of Granada in the presence of the great poets such as the son of Abu Salt and Ibn

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Publication Date
Mon Mar 01 2021
Journal Name
مجلة العلوم القانونية
أساس انتقال المخاطر في عقود التجارة الدولية
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أساس انتقال المخاطر في عقود التجارة الدولية

Publication Date
Sun Jan 04 2004
Journal Name
Al-academy
الآت الاطفال الموسيقية الشعبية والتقليدية في التربية
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الآت الاطفال الموسيقية الشعبية والتقليدية في التربية

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