16/02/2022
Designing & Optimizing an outdoor air condition system is always challenging. It is more difficult when there are no walls around the area of interest to retain the conditioned air. This is because; ambient wind can easily sweep away the conditioned air outside the area of interest. It should also be noted that the wind direction, velocity, temperature &humidity changes with seasons. Hence the HVAC system must not be over engineered for one wind condition and leave unengineered for other wind conditions.
So the HVAC system must be designed in such a way that the conditioned air must be retained inside the area of interest for maximum time plausible, considering the ambient conditions.
The objective of this analysis is to design & optimize the proposed outdoor air-conditioning system for the international customs area. This area has a size of 6,000m2 and with 5 lanes of road passing through it. The area of interest does not have any walls but it has a roof made of fabric material. The purpose of this customs area is to check and approve the land movement of people between two countries. Hence the officials and the travellers will stay on the road & parking inside the customs area for the purpose of inspection. The designed HVAC system must provide relief cooling to the people inside the customs area.
Weather data was used to simulate ambient worst case conditions (wind speed, direction, temperature & humidity) around the customs area. Adjacent buildings in the upstream of the wind were carefully modelled to improve flow accuracy inside the customs area. Since there is no walls around the check post to retain the conditioned air inside the area of interest (customs area)
Conclusion: We have successfully designed and optimized an outdoor air conditioning system for the customs area such that it retails maximum conditioned air inside the area of interest for maximum time under all ambient conditions.
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