Ventilation system - central - 1 x 720 m3/h - polyethylene ducts - with earth tube heat exchanger (ventilation system production - central - 1 x 720 m3/h - polyethylene ducts - with earth tube heat exchanger)

Emissions generated by the activity within the product supply chain as described in ecoinvent v3.8. This is an immobile infrastructure, representing the construction of a ventilation system, central, 1 x 720 m3/h, polyethylene ducts, with earth tube heat exchanger, a central ventilation system for a multi family house. It represents a central ventilation system including 4 parallel polyethylene ground heat exchanger tubes (200 mm diameter). Air distribution from the central ventilation unit with a galvanised steel tube (400 mm diameter) to the distribution housings in the 6 flats. Distribution of fresh- and exhaust-air within the flat with polyethylene tubes (75 mm diameter). Exhaust air from the air collection housings in the 6 flats with a galvanised steel tube (400 mm diameter) to the central ventilation unit. Exhaust air from the ventilation unit to the outside air with a galvanised steel tube (400 mm diameter). The lifetime is assumed to be 50 years. The process includes building materials and their decommission. The cut-off classification is allocatable product. The activity type is ordinary transforming activity. The reference product amount is 1.