Admski M.
Bibliographic info:
25th AIVC Conference "Ventilation and retrofitting", Prague, Czech Republic, 15-17 September 2004

This paper presents ventilation systems with longitudinal counterflow spiral recuperators. Heat transfer losses in ventilation system can be reduced by increasing the length of the recuperator, but in this case pressure drops increase. These two losses determine exploitation costs. Taking into consideration the results of measurements and calculations the costs for capital expenditure and exploitation of ventilation systems are minimized.