AHU System
Discussion
The AHU and air distribution layout design for Block H is determined form cooling load calculation. There are several parameters and assumptions taken into account during the calculation. One of the assumption made is that the building has just been refurbish so air infiltration is minimize. The calculation part consists of the external load, internal load, total cooling load, duct sizing, piping sizing and AHU specifications. Since it will be used for commercial building, the system comprises of air-conditioning all the rooms in the whole building block except for the toilet which will use mechanical ventilation. Air Handling Unit (AHU) will be placed in a small room at the end of the block near the toilet. This is to maximize the utilization of space for functional usage rather than to take up the space for AHU system. It will also be easier in terms of maintenance wise since it is at the far end of the building and not enclosed between the rooms. Since the AHU system is separated from the room it make it more comfortable for the occupants because AHU will release heat and also noise due to vibration of equipment and auxiliaries. The system is also slightly overdesigned to make it easier for future expansion to ensure sustainability. Furthermore, since the system will degrade by time in terms of its performance and efficiency it is best to slightly overdesigned it.
Conclusion
The air-conditioning system layout for Block H is done comprising of cooling load calculation, determination of air distribution layout and AHU specifications and locations. Several assumptions are made during the calculation process and the best possible layout is designed to meet the required function as a commercial building. Other considerations such as occupants comfort, safety, economic aspect and sustainability are taken into consideration as well. To account for future expansion and degradation of efficiency over time, the system is slightly over designed.
The AHU and air distribution layout design for Block H is determined form cooling load calculation. There are several parameters and assumptions taken into account during the calculation. One of the assumption made is that the building has just been refurbish so air infiltration is minimize. The calculation part consists of the external load, internal load, total cooling load, duct sizing, piping sizing and AHU specifications. Since it will be used for commercial building, the system comprises of air-conditioning all the rooms in the whole building block except for the toilet which will use mechanical ventilation. Air Handling Unit (AHU) will be placed in a small room at the end of the block near the toilet. This is to maximize the utilization of space for functional usage rather than to take up the space for AHU system. It will also be easier in terms of maintenance wise since it is at the far end of the building and not enclosed between the rooms. Since the AHU system is separated from the room it make it more comfortable for the occupants because AHU will release heat and also noise due to vibration of equipment and auxiliaries. The system is also slightly overdesigned to make it easier for future expansion to ensure sustainability. Furthermore, since the system will degrade by time in terms of its performance and efficiency it is best to slightly overdesigned it.
Conclusion
The air-conditioning system layout for Block H is done comprising of cooling load calculation, determination of air distribution layout and AHU specifications and locations. Several assumptions are made during the calculation process and the best possible layout is designed to meet the required function as a commercial building. Other considerations such as occupants comfort, safety, economic aspect and sustainability are taken into consideration as well. To account for future expansion and degradation of efficiency over time, the system is slightly over designed.