There are main two approaches in our design, Space Cooling and Spot Cooling.
Spot cooling cools only the spot where it is really needed, normally we cool the operator’s workstation. This approach can save in minimizing the total fresh air supply needed, however it may incur long ducting cost to deliver the cool air to the desire spot.
Space cooling cools the entire work space where overall temperature reduction is needed. This approach may use a shorter ducting but required higher cool fresh air supply.
Space Cooling
- Desire to cool down the entire area
- Location of worker is not fixed / scatter around
- Heat Source is controlled / confine at certain area
- Desire to pressurize the work space to prevent the dust entry
Spot Cooling
- Desire to cool down the certain spot in a huge workspace
- Location of worker is fixed
- Heat Source is distributed all over the workspace
POSSITIVE / NEGATIVE PRESSURE WORKSPCAE
Positive Pressure Workspace
The work space is design where the fresh air supplied is greater than the exhaust air exit. This approach keep the keeps airborne contaminants out from the workspace, even when a door is opened, the positive pressure will not allow air from outside to enter the workspace.
Negative Pressure Workspace
The work space is design where the fresh air supplied is smaller than the exhaust air exit. The outside air will enter to the workspace from the open door or window. An example of this approach is at kitchen of a restaurant, so that the oily air from the kitchen will not spread to the sitting area.