DESIGN OF WASTE HEAT BOILERS FOR THE RECOVERY OF ENERGY FROM ARC FURNACE WASTE GASES
Various practical implications of the use of a waste heat boiler have been studied. These include the location of the boiler, the accretion of solid matter on tubes, the effect of the presence of the boiler on gas cleaning and the control of furnace extraction to achieve optimum performance. The economics of using a waste heat boiler on a 180 t furnace to supply part of the steam demand from a works producing special steels have been examined. Payback periods of between 1.7 and 2.9 years according to the fraction of the load supplied are indicated. The rate of return on investment is forecast to be in the range 33- 58%. The use of waste heat steam to generate electricity is not attractive under present circumstances unless generating capacity already exists. This conclusion applies to a large user of energy in the UK; the economics could be more favourable in other EEC countries where different tariff structures and energy price relativities pertain.
Bibliographic Reference: EUR 9850 EN (1985) MF, 58 P., BFR 150, BLOW-UP COPY BFR 290, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123117300 / Last updated on: 1987-01-01
Available languages: en