This document provides an overview of the design of the HVAC system for a hospital. It discusses several key aspects of the system, including: 1) The types of electrical equipment used in different areas of the hospital and their power loads. 2) The different types of air filters used, including aluminum, washable, HEPA, and carbon filters. 3) The process of calculating heat loads, both internal from people, equipment, lights, and infiltration, and external from solar gain. 4) The design of ductwork including sizing for air volume and velocity, calculating friction losses, and selecting duct diameters and dimensions. 5) The types of fans used, including centrifugal,

1. ‫العظيم‬ ‫هللا‬ ‫صدق‬

4. Supervision by:

5. Ahmed MaherGaber NiazyEman AbdelnaserMahmoud ElsaiedMohammed FathyNaglaa FathyAyad Fawzy
Mahmoud Gomaa

6. Ch.1Introduction about hospital air condition
Ch2.The electric equipment in hospital & filter
Ch.3Air system and type of Air Condition)
Ch4.Load calculation
Ch5.Duct Designing, Air Distribution System &Fans
Ch6.Chilled water system equipment & piping design
Ch7.the project calculation
Appendices
ventilation
Air condition
Equipment in hospital
Hepa filter
Psychometric Analysis
Air condition system
Using HAP
Manual method
Types of Air outlet
Fans
water pipe system
pump
Duct calculation
Load calculation

7. WHAT IS THE MEANINGOF H-VAC??

9. Up to 70 % fresh air
Exhaust in the bottom
Difference duct paths
Velocity 90 per min
Air condition in hospitals

12. THE ELECTRICAL EQUIPMENT IN HOSPITAL
Basement floor
• Reception {Monitor 30 inch 90 w , Desktop computer 135
w , Scanner 1200 w ,Printer 90 w , Fax 480 w ,Water cooler}
• Pharmacy {Desktop computer , Monitor 30 inch}
• Outpatient clinics {x-ray system 480 w, blood pressure meter
29 }
• café & Kitchen { Boiler, Cooker ,Refrigerator 1200w , water
cooler}
• The x-ray department { Plotter, x-ray system, Desktop
computer}

13. The first floor & second floor
• The operating room {Light system ,Anesthesia
system ,Blood warmer 114 w , Sterilizer 60 w
,Respirator 50 w , Electric Shocks }
• Intensive care unit &Rooms sedation
{Respirator 50 w , Electro surgery 109 w ,Device for
measuring heartbeat ,Screen to monitor the heart and
pressure.}
Third &fourth floor
• Patiant room {Monitor 30 inch ,Refrigerator}

15. •1-aluminum
•2- WASHEBLE(pag filter)
•3- HEPA
•4-Carbon

19. 1- The transmission of heat condition
Heat load calculation
{Q= A*U*(Tₒ-Tᵢ)}

20. 2-Solar heat gain
• { Q= A*U*(Tₒ-Tᵢ+Ts)}
Solar air temperature (Ts):
Heat load calculation

21. INTERNALHEAT GAIN

22. C)LIGHT
A)PEOPLE
B)EQUIBMENT
D)INFILTIRATION
INTERNAL HEAT GAIN

23. EXTERNAL HEAT GAIN
VENTELATION

24. Refer to appendix 2 in book

25. COMPARING BETWEEN RESULT BY MANUAL
CALCULATION AND CALCULATION USING HAP.
Room Manual HAP
Room1 > 2nd Floor 1.107 Ton 0.75 Ton
Room6 > 2nd Floor 1 Ton 1.2 Ton
Room38 > 3rd Floor 1.2 Ton 1.2 Ton
Room14 > 4th Floor 1.18 Ton 1.2 Ton

26. DUCT DESIGN

27. METHOD OF DESIGNING DUCT WORK :
• Velocity
• Equal fraction
• Static regain

28. •Air Volume (CFM)
•Air Velocity (FPM)
•Friction loss (in.of Water per100ft)
•Duct Diameter (In.) Round Duct
•Duct Depth (In.) Rectangular Duct
•Duct Thick (mm)
•Duct weight ( kg )
DUCT DESIGN

29. • Load Estimation ( HAP ) --- Ton R
Unit Selection
•From Catalog --- CFM
Air Volume ( √ ) CFM
AIR VOLUME (CFM)

30. Air Velocity (FPM)

31. Refer to appendix 4 in book

32. friction Loss (____) in water/100ft
( √ )
FRICTION LOSS (IN.OF WATER PER100FT)

33. DUCT DIAMETER (IN.)
ROUND DUCT

34. Refer to appendix 4 in book

35. Rectangular Duct
DUCT DEPTH (IN.)

36. DUCT THICK (MM)

37. Duct weight ( kg )
Refer to appendix 4 in book

38. Refer to appendix 5 in book

39. DUCT CONSTRACTION
Volume damper
Fire damper
testing

41. TYPE OF FAN
1-Centrifugal fan
2-Axial fan
3-Probbler fan

42. 1)CENTRIFUGAL FAN
A-BACKWARD CURVED BLADE:
1-CFM.
2-NOT OVER LOAD.
3-EXPENSIVE.
B-FORWARD CURVED BLADE
C- RADIAL CURVED BLADES.
3)PROBBLER FAN
2)AXIAL FAN
A-NORMAL AXIAL FAN
B-TUBO AXIAL FAN
C-VAN AXIAL FAN

43. INSTALLATION IN SITE
1-fan section
2-In line
3-Roof top fan

44. INSTALLATION RULE
1-Distance between wall & fan
2-Direction of Air
3-Fresh fan &Exhaust fan

45. CHILLED WATER SYSTEM

46. PIPE DESIGN
• Selection of pipe diameter:
1)Velocity
2)Flow rate
• Selection of pump for critical bath:
1)Flow rate
2)Head

47. •Type of balance:
1)balance of bath
a) balancing valve
b) common reversed return
2)Balance of loads
a) 3-way valve
b) 2-way valve

48. Equipment of chilled water system

49. CHILLER
1 air cooled condenser chiller
2-water cooled condenser chiller

50. COOLING TOWER
factor effecting on cooling tower:
1) Wet bulb temp
2) Cooling tower range
3) Approach
4) Condenser Cooling water Flow Rate

51. FAN COIL UNIT

52. AIR HANDING UNIT