أريد معرفة الطريقة الصحيحة لحساب The Pump Head for Chilled Water System

[CENTER]السلام عليكم و رحمة الله و بركاته

يا هلا يا أصدقاء , هل من يدلنى على الطريقة الصحيحة لحساب The Pump Head for Chilled Water System و جزاكم الله خيراً

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بسم الله الرحمن الرحيم
FOR CALCULATION CHILLED WATER PUMP WILL BE AS FOLLOW
1- TAKE THE LONGEST CHILLLED WATER BRANCH
2-CALCULATER FRICTION LOSS FOR THIS BRANCH WHICH CAN BE DIVIDED INTO
-FRICTION DUE TO FITTING
FRICTION DUE TO ATTACHED HOOK UP FOR (PUMPS &FCU &AHU&CHILLER
FRICTION DUE TO PIPES

ATTACHED TO YOU EXCEL SHEET TO SHOW EXAMPLE FOR IT