HUMIDITY SENSITIVE SYSTEM IS 20 YEARS OLD

摘要

During the last 20 years, the humidity sensitive ventilation system evolved to products increasingly simplifiedrnthus standardised. At Aereco, there were 5 generations of extract units, each modification of product was due torna change in the acceptation criteria.rnIn many countries, systems with variable airflows are accepted and recognised ; regulations moved. In otherrncountries, the orthodoxy of the constant airflow of an air change per hour remains in force for simplifyingrnreasons or by ignorance of the real interest.rnLaboratories and design offices had also to adapt themselves to new technologies, it was the case when thernthermostatic radiator control or the programmable thermostats appeared on the market. The period of the all-ornothingrnis definitively over.rn1.500.000 dwellings equipped with humidity sensitive ventilation systems in the world is the evidence that thernsystem is working well and that it is well accepted. The yearly energy saving is 1.500 giga Wh.rnThe control of the energy consumption is now an important issue, even the politics are involved : lessrnconsumption means less pollution, so few risk of super oil tanker passing by our coasts. The saving of ourrntechnology is close to a super oil tanker each year.rnVentilation plays a small part in the overall necessary energy saving however it is real role.