h-vac presentation sfe project
TRANSCRIPT
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صدق الله العظيم
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H-VAC
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Important to know
Presentation time: 20 min
Presentation include: 55 slide
Project YouTube: https://www.youtube.com/user/hvac2014
Presentation URL:
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Supervision by:
Prof.Dr/Mohmmed FayekProf.Dr/Maher gamil
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H-VACAhmed MaherGaber NiazyEman AbdelnaserMahmoud ElsaiedMohammed FathyNaglaa Fathy Ayad Fawzy
Mahmoud Gomaa
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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
Chapters in
bookventilation
Air conditionEquipment 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
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WHAT IS THE MEANING OF H-VAC??
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Introduction about
hospital air condition
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Up to 70 % fresh airExhaust in the bottomDifference duct pathsVelocity 90 per min
Air condition in hospitals
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HOSPITAL CONTENT
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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}
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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}
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FILTER
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Type of filter
•1-aluminum•2- WASHEBLE(pag filter)•3- HEPA•4-Carbon
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Load calculation
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Why we need load calculation
!?
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1- The transmission of heat condition
Heat load calculation
{Q= A*U*(Tₒ-Tᵢ)}
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2-Solar heat gain• { Q= A*U*(Tₒ-Tᵢ+Ts)}
Solar air temperature (Ts):
Heat load calculation
NOTE:
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INTERNAL HEAT GAIN
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C)LIGHT
A)PEOPLE
B)EQUIBMENT
D)INFILTIRATION
INTERNAL HEAT GAIN
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EXTERNAL HEAT GAIN
VENTELATION
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softwareHAP
Refer to appendix 2 in book
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COMPARING BETWEEN RESULT BY MANUAL CALCULATION AND CALCULATION USING HAP.
Room Manual HAP
Room1 > 2nd
Floor1.107 Ton 0.75 Ton
Room6 > 2nd
Floor1 Ton 1.2 Ton
Room38 > 3rd
Floor1.2 Ton 1.2 Ton
Room14 > 4th
Floor1.18 Ton 1.2 Ton
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DUCT DESIGN
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METHOD OF DESIGNING DUCT WORK :
• Velocity• Equal fraction• Static regain
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•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
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• Load Estimation ( HAP ) --- Ton R
Unit Selection
•From Catalog --- CFM
Air Volume ( √ ) CFM
AIR VOLUME (CFM)
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Air Velocity (FPM)
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Refer to appendix 4 in book
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friction Loss (____) in water/100ft
( √ )
FRICTION LOSS (IN.OF WATER PER100FT)
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DUCT DIAMETER (IN.) ROUND DUCT
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Refer to appendix 4 in book
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Rectangular Duct
DUCT DEPTH (IN.)
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DUCT THICK (MM)
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Duct weight ( kg )
Refer to appendix 4 in book
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softwareDuct seizer
Refer to appendix 5 in book
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DUCT CONSTRACTION
Volume damper
Fire damper
testing
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Fan
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TYPE OF FAN
1-Centrifugal fan2-Axial fan3-Probbler fan
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1)CENTRIFUGAL FAN
A-BACKWARD CURVED BLADE:1-CFM.2-NOT OVER LOAD.3-EXPENSIVE.
B-FORWARD CURVED BLADEC- RADIAL CURVED BLADES.
3)PROBBLER FAN
2)AXIAL FANA-NORMAL AXIAL FANB-TUBO AXIAL FANC-VAN AXIAL FAN
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INSTALLATION IN SITE
1-fan section2-In line3-Roof top fan
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INSTALLATION RULE
1-Distance between wall & fan2-Direction of Air3-Fresh fan &Exhaust fan
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CHILLED WATER SYSTEM
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PIPE DESIGN• Selection of pipe diameter: 1)Velocity 2)Flow rate
• Selection of pump for critical bath: 1)Flow rate 2)Head
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•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
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Equipment of chilled water system
ChillerCooling TowerFan Coil Unit Air Handling Unit
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CHILLER1 air cooled condenser chiller
2-water cooled condenser chiller
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COOLING TOWER
factor effecting on cooling tower:
1) Wet bulb temp
2) Cooling tower range
3) Approach
4) Condenser Cooling water Flow Rate
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FAN COIL UNIT
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AIR HANDING UNIT
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Thank YOUFOR YOURAttention
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