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.
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
... Show MoreAfter this stage in the Bible is problematic and the profane in the poetry of the AL-Sayeghs,
and found that the poems path heading towards obey religious authority because of their wills
and powers, and the insurgency in other areas, as it did not employ shady methods and puns
and intriguing, and I find the reason for this is due to the fear poet focused toward the
influence of political Sergeant, more than effusion direction ascendancy religious sergeant,
was a AL-Sayeghs stop at this border; but went to the formulations problematic diversity in
the cognitive system, he tries it all to critique, as submitted by the history of the conflicts
produced generations of oppression and conflict and tension (what my fault I
Pride in the poetic Genius in Al-Shareef Al-Murtada's poetry.Pride in the poetic genius is a rich and recurring subject .The poets always compete with each other to show their skills in composing poetry.This subject illustrates the poet's creative talents and his ability to comprehend the vocabulary of the Arabic language.Pride in the poetic gift witnessed great development which was caused by the cultural progress of the Abyssian Age. Such influences are often reflected in poetry because it is an essential part of life.
Введение
Международные контакты обусловили интерес к изучению основной формы общения – диалога. Форма диалога в каждом из контактирующих в процессе общения языков должна быть рассмотрена в разных аспектах – не только лингвистическом, но и социолингвистическом и этическом. Это объясняется тем, что в речевой коммуникации необходима как адекватность выражения мысли, так и соблюдение тради
... Show Moreالقنوات الخلفية في السياسة الخارجية الامريكية
يهدف البحث الى قياس مستوى الثقافة الاسلامية لدى الطالب الجامعي العراقي والكشف عن الفروق في المستوى الثقافي الاسلامي بين الذكور والاناث وتحدد البحث بعينة ممثلة 200طالب وطالبة من طالب الجامعات العراقية ( بغداد ، المستنصرية ) للعام الدراسي (2018-2017) ، واعتمد على المنهج الوصفي (اسلوب المسح ) لدراسة الموضوع ، وخرج البحث بعدة استنتاجات منها يعاني طالب الجامعات العراقية ( ذكور واناث ) من ضعف في مستوى الثقافة الاسلامية لد
... Show Moreشيد الفكر العربي المعاصر تحولات عدة فرضتها بعض التيارات الفكرية والفلسفية الغربية، وأثرت في تكوينه وتحديد اتجاهاته، فضلا عن التحديات التي بات لزاما عليه ان يتعامل معها ويمكن رد هذه التحديات الى عدة عوامل داخلية وخارجية أنتجت عدة تيارات تناولت موضوع العقلانية في الفكر العربي المعاصر، لعل أبرزها التيار الاصلاحي، التيار الليبرالي، والتيار العقلي النقدي
The bourgeoisie groups derived great advantages from the system upon which the Fatimids built up their Regime out the land-tax and other taxes against a fixed sum . The surpulus revenue was the prophet of the farmers . A striking feature of the Fatimid was freedom of enterprise .All sectors of economic life were free-crafts , industry and trade . The government interfered in the trade in victuals only so far to in order to guarantee the supply of wheat to the big towns
The Egyptian Bourgeoisie enjoyed also the great prosperity which was produced among other reasons by the inflationary system of Fatimid economy .
The maintenance of gold dinar being almost pure and of full weight was only possible because Egypt steadily received cons
The writings of famous French novelist Antoine de Saint- Exupery being describes his life and his career as a pilot. That's where aviation and modern means of transport at the beginning of the twentieth century. It is also through his writings that tainted documentary chronicled the history of occupied France by the Germans in World War II. Has contributed to the publication of documents and real events and attended by military missions. However, before he died, wrote us a novel immortal "The Little Prince ", which is quite different from previous writings in terms of dependence entirely on the imagination. And are almost close to science fiction to fact that the hero falls to the ground in a vague, of a small asteroid. We are tryi
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