Hi all,

I've been searching around the Q&A's given about the ventilation of laboratory / manufacturing spaces. However I am still not sure on how to address some issues. As such, please confirm me if I am doing some considerations correctly or not:

1) The Proposed Design airflow rates are very high as they follow industry standards (ISO). Does the industry code qualifies as "building official requirements" ? Or may we use in the Baseline the same minimum outdoor airflow as the Proposed Design? In my opinion, a professional (pharmaceutical, rather than an Educational) Laboratory / manufacturing facility is not listed under ASHRAE 62.1 - 2010 and as such the outdoor airflow of these spaces should be treated and considered the same in Proposed and Baseline buildings.

2) As per ASHRAE 90.1 - 2010 Table G3.1.1A (in the notes), Laboratories spaces Baseline HVAC systems are regulated and, therefore, their associated energy consumption is not considered as "Process Load" and must be modelled accordingly with that table. Therefore, the HVAC systems for those lab spaces of the Proposed and Baseline will be different and savings may be claimed with energy efficiency measures.

3) Space ventilation of the manufacturing areas (also clean rooms) are considered process loads, so the whole ventilation system of those spaces, including total air supply, outdoor air supply, ventilation specific fan power and thermal energy consumption associated with air conditioning shall be modelled identically based on the Proposed Design.

Thank you all very much for your time and help!