Building services presentation subang parade

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Building services presentation subang parade

  1. 1. Group member 1. Chia Khai Yuean 2. Chin Wei Sun 3. Jenny Wong Yen Li 4. Teo Jun Tang 5. Yap Hue Eng 6. Yap Zhi Xin
  2. 2. Introduction
  3. 3. Introduction
  4. 4.  Service tunnel  Basement car park  A lower ground, ground and 1st floor Introduction
  5. 5. HVAC
  6. 6. Ventilation: No natural ventilation - sealed building. Mechanical ventilation : 1. extraction fan (car park) 2. air-conditioning (every shops, lift, toilets) 3. extraction grilles (toilets, roof level) Air-conditioning system: - centralized system (water chiller system) - cooled air supplied via ducting system (outlet) - use “open-ceiling” (inlet) - Plant room –3 chillers, compressor, distributor pumps,condenser pumps, chiller pumps. - T.G.I.FRiDAY’S restaurant –package system “Open ceiling”
  7. 7. Condenser pumps Linear diffuser Cone diffuser Multi-direction diffuser
  8. 8. Air Handling Unit (AHU): - 68 units - manually operated - controls the air-conditioning system of 5 shops. - Air supplied = 2˚C, returns = 23˚C. - Thermostat - control the temperature of air supplied. - Maintenance works for cooling coil – every 2 months. Control panel Thermostat
  9. 9. Air filters Cooled air supply
  10. 10. Chiller: - 3 chillers - 1 chiller filled with 750 tons of water (10:30a.m to 7:00 p.m.) - 2 chillers filled with 1500 tons of water(9:30 a.m. to 9:30 p.m.). - have been used for over 26 years and do not encounter any overheat problems. Chiller Chiller control penal
  11. 11. Cooling tower: - 6 at roof top. - balancing pipes - ensure the water is supplied at the same volume. - ball valve - indicate and control the supply of water. - hot water is pumped from the condenser to the cooling tower by using condenser water pump. Cooling tower
  12. 12. Ball valve Cooling towers
  13. 13. Zoning: - single zone variable air volume. (air is supplied in same temperature but different volume). - MBO cinema - single zone constant air volume.
  14. 14. Fire Protection
  15. 15. Fire Protection Active Passive 1. portable fire extinguishers 1. Escape route: Pressurized staircase 2. Automatic extinguisher - Carbon dioxide gas extinguishing system - Sprinkler system 2. Fire rated door 3. Fire hydrant 3. Fire man lift 4. Hose reel 5. Risers 6. Detectors 7. Alarm system and voice communication system
  16. 16. 1. Portable fire extinguishers  Powder type - used inside the mall - provided one in every shop - placed in white metal box  Carbon dioxide type -Used in electrical room, transformer room and water plant room  Maintenance: once a year  9kg
  17. 17. 2. Automatic extinguishing system a. Automatic Carbon dioxide system  TNB rooms  both smoke and heat detectors  non-conductive properties
  18. 18. b. Sprinkler system - wet sprinkler - distance: 3m - red bulb liquid color = 68 degree Celsius - pressed steel storage tank = 48,000 gallons capacity -1 duty pump, 2 standby pumps and 2 jockey pumps -ball valves
  19. 19. 3. Fire hydrant  8  3- way hydrant  Hydrant – hydrant = 68m  hydrant - building = 8.90m  hydrant - road = 6m
  20. 20. 4. Hose reel  11 sets  wet riser tank & close range pumps  30m long  diameter of 8.47mm  Canvas reel – landing valve
  21. 21. 5. Risers  11 Wet risers  basement level -first floor (16.458m)  8.534m×3.658m×2.438m tank  16,800 gallons capacity
  22. 22. 6. Detectors a. Smoke -lift lobby and inside the mall -35m2 b. Heat -TNB rooms  connected to fire alarm panel and linked to fire control room
  23. 23. 7. Alarm detection  Manual call points = 1.46m  connected to fire alarm panel and fire control room  Automatic alarm bells  Fire switch
  24. 24. 8. Voice communication system  installed at every services room and lift lobbies  Communicate to the people in the fire control room.
  25. 25. Passive: 1. Escape route- Pressurized staircase  purpose made ventilation grille of independent pressurization system  Fire switch  Emergency light  riser =160mm  tread =270mm
  26. 26. 2. Fire rated door  1 hour  escape route and service rooms
  27. 27. 3. Fire Elevator  When there is fire, all elevators will return in sequence directly to the designated floor, which is the LG Floor.  Only fire elevator can be manually operated by the firemen via the fire lift switch.
  28. 28. fire elevator fire lift switch
  29. 29. Vertical Transportation System 1. Elevator 2. Escalator
  30. 30. Elevator 9 groups serving the whole shopping mall. • 7 are connected directly to the car park. ( electric elevators ) • 2 groups within the shopping mall excluding car park level ( hydraulic elevators ) • In one group, there are 2 elevators, with one of the elevator designated for Bomba in terms of emergency.
  31. 31. Electric elevators accessible directly to the car park
  32. 32. hydarulic elevators for interfloor traffic only, excluding car park
  33. 33. Specifications Electric Elevator Hydraulic Elevator Elevator Capacity 1800kg 1360kg, 26 persons Internal Car Size 180cm*183cm 90cm*270cm Door arrangement two - speed centre opening single - speed centre opening Round-Trip Time(RTT) 1 minute 2 minutes 15 seconds
  34. 34. Operation of System Electric Elevators moves the elevator car up and down using traction steel ropes and sheaves with a counterweight to balance the load.
  35. 35. Operation of System Hydraulic Elevator use hydraulic power to pressurise the piston at the base of the elevator to raise and lower the car.
  36. 36. Motor Room  Located on top of the elevator shaft.  Housed traction machines of all elevators, including the control panel. Traction Machine Traction Sheave
  37. 37. Escalators  moving stairs used to convey people between floor levels.  It can be constructed in few arrangements, which are one-way traffic and two-way traffic.  7 criss-cross and 2 parallel
  38. 38. Two-way traffic (parallel)
  39. 39. Two-way traffic (criss-cross)
  40. 40. Electricity
  41. 41. High Voltage Room
  42. 42. Feeder  3 Feeder with 11kVA switchboard section  Circuit conductor for power supply source  Final branch circuit overcurrent device.
  43. 43. Vacuum Circuit Breaker  25 VCB  interrupt the current using vacuum
  44. 44. Transformer Room
  45. 45. Transformers 17 transformers 5 12 HVAC system Electric supply Step down 11kV 415V Silica gel breather Prevent damage as incoming air consists of moisture & dirt. Blue when installed & turn purple when they absorb moisture.
  46. 46. Low Voltage Room
  47. 47. Main Switch Board (MSB)  3 main switch board
  48. 48. Bar coupler Electric Riser Feeder pillar panel 2 feeder pillar panel Only 1 feeder pillar panel is used Another 1 is use when the existing feeder failure Electric riser Distributes electric supply Bar coupler Transfers electric when the feeder is failure.
  49. 49. Generator Set  Electrical generator + engine mounted together  Convert mechanicalelectrical energy  3 generator set  With battery  11250kVa  21000kVa  Use for backup
  50. 50. Air Circuit Breaker (ACB)  Main circuit breakers  Compressed air is used to interrupt circuit.
  51. 51. Electric Panel Room
  52. 52. Distribution Panel  Distributes power to the consuming loads
  53. 53. Miniature Circuit Breaker (MCB)  A small trip switch
  54. 54. Busbar  A copper conductor A copper conductor Enclosed busbar for safety purposes
  55. 55. Electric distribution Main switch board Busbar . Miniature Circuit Breaker (MCB) Distribution Panel. Load.
  56. 56. Cold Water Supply
  57. 57. Cold Water Supply  Pneumatic water pressure boosting system  Suitable for tall buildings  Water enter from rising main> store in tank
  58. 58.  System consists electrical control panel, hydro- pneumatic pump, water storage tank.
  59. 59.  Pneumatic water pressure boosting system  System pressure maintained by small air compressor and pneumatic cylinder  Small air compressor: contain water with pressurized air space
  60. 60.  Indirect boosting from break tank - using pneumatic cylinder - a continuous running pump
  61. 61.  Break tank - supply the system if main supply becomes insufficient - create pressure zones
  62. 62.  GI piping- rust easily  Why choose? - first mall in KL in the 80’s - PVC not popular  Make up tank- compensate water shortage period
  63. 63. Let’s watch a video  http://www.youtube.com/watch?v=LJiT3VHJwZI
  64. 64. 1. Single Zone Variable Air Volume  Multi Zone Variable Air Volume More energy efficiency Recommendations- HVAC
  65. 65. 2. Manual Controller  Automatic Controller  The operation will be more accurate  Energy efficiency  Usage of manpower and related cost can be cut down How it works  The electronic control unit evaluates the signals from sensors to determine the operating conditions, and controls the actuators to move dampers and valves that control the volume, temperature and direction of the air delivered
  66. 66. 3. Industrial fan & UV glass • Distribute air evenly • Block 99% of UV radiation while transmitting the desired light
  67. 67. 4.Return duct • Can be used to extract warm air & recycle it through the system for either cooling or heating purpose • Energy efficient compared to open ceiling system
  68. 68. 1. Fire blanket and fire extinguishing ball  Portable Fire extinguisher Recommendations- Fire Protection
  69. 69.  i. Fire blanket  flame-resistant blanket  extinguish small fire or protect a person from fire by wrapping the blanket around  made from 2 layers of woven glass fibre fabric and an inner layer of fire retardant film
  70. 70.  ii. Fire extinguishing ball  spherical shape of fire extinguisher  1.3kg only  is activated when it is contact with flame and it will burst to spread dry chemical to extinguish fire when temperature is reach 70 Degree Celsius  Make noise when activated to alert occupants
  71. 71. 2. Fire rated door for landing door & fire control room door i. UBBL clause 152.2 ii. landing door shall have a FRP (fire resistance period) of not less than half the FRP of hoist way structure with minimum FRP of one hour. iii. prevent the spread of fire from landing side into the lift shaft for a period time
  72. 72.  Infra-red photo of landing doors of lift during fire test.
  73. 73. 3.Visible Fire alarm system + Alarm bell  Alarm bell system i. UBBL clause 242 ii. special requirements for fire alarm system should be provided where occupants are undesirable for audible alarm system iii. visible alarm signal such as fire alarm strobe lighting device
  74. 74.  Fire alarm strobe lighting device
  75. 75. 4. Replace Diameter of hose reel i. 8.47mm diameter (old) ii. BS EN 671-1, requirement is 19mm or 25mm
  76. 76. Conclusion
  77. 77. THE END~

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