Community Research and Development Information Service - CORDIS


The energy efficiency of the RTB's transmitters is deplorable. The UHF transmitters at Vlessart, the station covered by this project, absorb 75.4 kW of electricity but radiate only 11 kW from the aerial. Theoretically 64.4 kW could be recovered. Most of this is lost in the "heart" of the transmitter, in the circuit for cooling the klystrons (picture and sound unit). The aim of this project is to recover the heat lost in the klystrons. This offers clear benefits to RTBF. The energy saved by recovering heat lost by the transmitters would significantly cut the cost of heating the premises. The RTBF took the Vlessart project as an opportunity to scale down the conventional low-temperature auxiliary heating system, to close down a conventional heating system in an adjacent building now heated by the new installations and to add an automatic control system governing all the installations to allow maximum heat recovery and cover users' exact requirements.

Additional information

Authors: DAUGE J, Radiotelevision Belge de la Communaute Francaise (RTBF), Bruxelles (BE)
Bibliographic Reference: EUR 12042 EN (1989) FS, 13 pp., ECU 5
Availability: (2)
ISBN: ISBN 92-825-9375-4;CD-NA-
Record Number: 198910364 / Last updated on: 1994-12-01
Original language: en
Available languages: en