Over the last few years policies in this area have drastically changed. Certainly in this area it appears that large savings are possible. Buildings and dwellings must be designed so that the energy consumption required to maintain a comfortable indoor climate remains low. The aim must be to achieve the most optimum combination of low energy consumption with acceptable levels of investment. Recently a new problem has arisen in office buildings.
People start complaining about the indoor environment in some fully air-conditioned buildings.
Local air conditioning in the working area. Indoor air quality related to the design of air-conditioning installations. In The Netherlands HVAC-technology is used by a large number of medium and large compa nies with a total annual turnover of two to three billion guilders and a workforce of around 20,000 people. Of this total approximately 2000 people work for consultants in this field and produce a turnover of approximately 160 million guilders. At present installations are being designed and optimized with the aid of computerprograms.