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n have been running a petrol-engined
Page 157
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generator but with the rising cost of petrol I have considered converting it to Calor Gas fuel. Could you give me a comparison of the costs between petrol, Calor Gas and diesel fuel operations if duty free diesel is used? Also could you tell me the cost of a conversion, and the name of a supplier of such equipment?
AAlthough specific consumption details of
L.P.G. (liquid petroleum gas) cannot be given it is thought that from a point of view of actual fuel consumption such engines are more expensive to operate. The main reason for their use is connected with the clean-burning qualities of the fuel which makes them particularly suitable for use inside buildings.
As to the other two fuels, not only is diesel fuel, as you rightly say, duty free for use in stationary plant but it will also produce approximately 25 per cent lower consumption. You must offset this against the higher initial cost of the diesel engine and possibly some starting difficulties in extremely cold weather, although the latter should not occur if the correct starting procedure is followed.
While you can convert your petrol engine to run on L.P.G., you cannot of course convert to diesel for which you would need a new or replacement engine.
You do not mention the size of the generator in question but it is possible that it would run quite well on Tractor Vaporizing Oil (T.V.0.) which is also duty free and which is used on a dual-fuel system, i.e. start-up on petrol and change over when the engine is hot.
The Calor Gas (Distributing) Co. .Ltd., 178/202 Great Portland Street, London, W1, should be able to give you any information you require on L. P. G. and its uses.