Abstract
This paper is intended to give an account of experiences during the first year's operation of the first cyclone-fired boiler to be commissioned in Britain. The reasons for the choice of a cyclone-fired boiler are given and its relation to the plant previously installed is described. The early operational difficulties and the actions taken to overcome them are discussed.
The results of official tests are given which show that the boiler efficiency is over 88 per cent on the gross calorific value and efficiencies of this order are being regularly attained in commercial operation. The performance of several widely differing coals in the cyclone are described and various factors which affect their suitability for burning in a cyclone are discussed.
The conclusion is reached that after some ‘teething troubles’, the boiler is now giving even a better commercial performance than was envisaged at the time of its inception and that the choice of such a unit has been completely justified.
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