Introduction

• Melania Averna (CERN)

Room: 3/1-021 Split the installation: underground and above ground

TCC8 Room: 3/1-021 1 Access mode-> people present in TCC8 ( how many?) Ventilation stop ( failure or power cut) ()AHUs 20000 m3/h ()extraction: XXXXXm3/h - 1ACH c.ca -> Action F. Dragoni ()heat gain to be assessed no RP concerns if ventilation is lost To be assessed: Evacuation time -> Melania to check with PESS and Fire Brigade -Upon confirmed gas detection -Upon confirmed Fire detection -Manual call point ( evac and BIW) Current design Future design 2 Operation Heat Gain: it should not change from the figure for access mode Head load in the target complex to be assessed (JLG) Any temperature and humidity control required? To be checked with all project team on monday Current design for the airlock; dedicated - HEPA- filter and fan (duty stand by) () interlocks logic - to be confirmed with Jani L.

ECN3 Room: 3/1-021 ECN3: 30000m3/h mainly in recirculation Galleries: scenario to be confirmed

Way forward Room: 3/1-021 To be discussed: Failure of the new target complex cooling system - > stop operation Target Complex as a whole: FIRIA