Ventilation system - decentralized - 6 x 120 m3/h - steel ducts - with earth tube heat exchanger (market for)

The activity generating the emissions is market for ventilation system, decentralized, 6 x 120 m3/h, steel ducts, with earth tube heat exchanger. The reference product is ventilation system, decentralized, 6 x 120 m3/h, steel ducts, with earth tube heat exchanger. This is an immobile infrastructure, representing the construction of a ventilation system, decentralized, 6 x 120 m3/h, steel ducts, with earth tube heat exchanger that is used in a multi family house. The house considered in the investigation includes 6 flats with 130 m2 floor area each and a ventilation rate of 120 m3/h. The infrastructure represents a decentralised ventilation system with 4 parallel polyethylene ground heat exchanger tubes (200 mm diameter). Air distribution to the 6 decentral ventilation units with a galvanised steel tube (400 mm diameter). Distribution of fresh- and exhaust-air within the flat with galvanised steel ducts (100x50 mm). Exhaust air from the 6 decentral ventilation units with a galvanised steel tube (400 mm diameter) to the exhaust on the roof. The lifetime is assumed to be 50 years. The process includes building materials and their decommission. The reference product amount is 1. The cut-off classification is allocatable product. The activity type is ordinary market activity. Please refer to the ecoinvent documentation here for full details: https://ecoquery.ecoinvent.org/3.11/cutoff/dataset/8063/documentation.