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THE EFFECT ON ATMOSPHERIC CORROSION COSTS OF A REQUIREMENT FOR OILS WITH A LOW SULPHUR CONTENT

Henriksen, Jan F.; Haagenrud, Svein Erik; Gram, Frederick
Research report
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URI
https://hdl.handle.net/11250/2717767
Date
1981
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  • NILU oppdragsrapport (1970-2015) [1722]
Abstract
The Ministry of Environment is considering imposing a requirement to use fuel oils with a maximum sulphur content of 1.0% in the nine coastal counties from Østfold to Rogaland. The present report deals with calculations of the total costs of atmospheric corrosion and the possible savings as a result of the estimated reduction in SO2 if the requirement is imposed. The reduced concentrations of SO2 are calculated by the Norwegian Institute of Air Research (NILU) in an earlier report,

As a basis for the calculations we have used the same model as employed by the Swedish Corrosion Institute in a study conducted for OECD, with adjustments to the basic data to suit Norwegian conditions. The calculations refer to 1979, and are limited to painted steel and galvanized steel in the form of sheeting, wire and profiles. The period 1960-79 is used as a basis for the accumulation of quantities of material.

The total yearly costs of corrosion in the nine counties are estimated at 644 million kroner in built-up areas and 345 million kroner in rural areas, totalling 989 million kroner. Corresponding yearly savings given a requirement for a sulphur content of maximum 1.0% are 14.7 million kroner and 1.0 million kroner respectively, totalling 15.7 million kroner.

These are relatively rough calcuations and are made on the basis of data that are fairly easily accessible. Emphasis has been placed on cautious assessments. Calculations of uncertainties show that the total saving of 15.7 million kroner may lie between 12 and 49 million kroner.
Publisher
NILU
Series
NILU OR; 17/81
Copyright
© NILU

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