Are you facing low cooling effect at your chilled water system? Are you experiencing low delta-T across Heat Exchanger? Are finding Air pockets at higher floors? Are you suffering from high relative humidity? Are you forced to use all your chilled water pumps? Are you paying more for less cooling effect? Did you try everything possible to claim back cooling without positive result? If your facing some or all the above? Solution starts from here

1. 1
‫معضلة‬‫الحرارة‬ ‫درجات‬ ‫فرق‬
Chilled- Water Delta Ts Dilemma
By Eng. Juma Yousef Juma
Delta-T Management Awareness Presentation
Green Earth Technology Co.
Type equation here.

2. ‫للتأسيس‬ ‫مقدمة‬–Introduction to Basics
Load AHU FCU FAHU
Cooling Tower

3. DELTA T (ΔT)
3
‫عالية؟‬ ‫حرارة‬ ‫درجة‬ ‫بفرق‬ ‫نعنى‬ ‫ماذا‬
WHAT IS HIGH DELTA TEMP.?

4. ‫عالية؟‬ ‫حرارة‬ ‫درجة‬ ‫بفرق‬ ‫نعنى‬ ‫ماذا‬
What is High Delta Temp.?
5’C-41’F
13’C-56’F

5. First: What is the relation between Ton-Cooling
and Delta-T?
‫أوال‬:‫الحرارة؟‬ ‫درجات‬ ‫وفرق‬ ‫التبريد‬ ‫أطنان‬ ‫بين‬ ‫الرياضية‬ ‫العالقة‬ ‫هي‬ ‫ما‬
Q(tons)=
[(GPM)(ΔT)]/24
Heat Transfer Equation
1

6. Ideal Condition ‫المثالية‬ ‫الحالة‬
[(GPM)(ΔT)]
/24
[(GPM)(ΔT)]
/24

7. Ideal Condition ‫المثالية‬ ‫الحالة‬
[(GPM)(ΔT)] [(GPM)(ΔT)]

8. Ideal Condition ‫المثالية‬ ‫الحالة‬
[(GPM)(ΔT)] [(GPM)(ΔT)]

9. When ‫تكون‬ ‫عندما‬

10. Then ‫يكون‬ ‫عندها‬

11. So Solution is ‫يكون‬ ‫الحل‬ ‫إذن‬

12. ‫ال‬‫تبريد‬‫هذه‬ ‫بعد‬ ‫مضمون‬‫التعديالت‬
Cooling is Guarantee After these
Corrections

13. Thank you! Looking forward to serve-U better
jumayjuma@gmail.com
https://www.facebook.com/greenearthtechnologycompany/
https://www.facebook.com/groups/780970768708352/
www.alsadarah.net
https://www.linkedin.com/in/juma-yousef-j-saleh-%D8%AC%D9%85%D8%B9%D8%A9-
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Eng. Juma Yousef Juma
CEO & Business DESelopment
Manager, Getco Green Earth
Technology Co.
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