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<p>This International Standard describes a procedure for the estimation of the net specific energy of aviation turbine</p>
<p>fuels using hydrogen content data. It is not applicable to pure hydrocarbons.</p>
<p>The method is purely empirical and is applicable only to liquid hydrocarbon fuels derived by normal refining</p>
<p>processes from conventional crude oil which conform to the requirements of specifications for aircraft turbine and</p>
<p>jet engine fuels of limited boiling ranges and compositions.</p>
<p>NOTE 1 The method is intended for use as a guide in cases where an experimental determination of net specific energy is</p>
<p>not available and cannot be made conveniently, and where an estimate is considered satisfactory for specifications and similar</p>
<p>purposes. It is not intended that estimated values of the net specific energy be used in place of experimentally determined</p>
<p>values.</p>
<p>NOTE 2 The estimation of the net specific energy of hydrocarbon fuel from its sulfur content, hydrogen content and density is</p>
<p>justifiable only when the fuel belongs to a well-defined class for which a relationship between net specific energy and sulfur</p>
<p>content, hydrogen content and density has been derived from accurate experimental measurements on representative samples</p>
<p>of this class. Even in this class, the possibility that the estimates can be in error by large amounts for individual fuels must be</p>
<p>recognized.</p>
<p>NOTE 3 The fuels used to establish the correlation presented in this International Standard are defined in annex A.</p>
Reģistrācijas numurs (WIID)
29515
Darbības sfēra
<p>This International Standard describes a procedure for the estimation of the net specific energy of aviation turbine</p>
<p>fuels using hydrogen content data. It is not applicable to pure hydrocarbons.</p>
<p>The method is purely empirical and is applicable only to liquid hydrocarbon fuels derived by normal refining</p>
<p>processes from conventional crude oil which conform to the requirements of specifications for aircraft turbine and</p>
<p>jet engine fuels of limited boiling ranges and compositions.</p>
<p>NOTE 1 The method is intended for use as a guide in cases where an experimental determination of net specific energy is</p>
<p>not available and cannot be made conveniently, and where an estimate is considered satisfactory for specifications and similar</p>
<p>purposes. It is not intended that estimated values of the net specific energy be used in place of experimentally determined</p>
<p>values.</p>
<p>NOTE 2 The estimation of the net specific energy of hydrocarbon fuel from its sulfur content, hydrogen content and density is</p>
<p>justifiable only when the fuel belongs to a well-defined class for which a relationship between net specific energy and sulfur</p>
<p>content, hydrogen content and density has been derived from accurate experimental measurements on representative samples</p>
<p>of this class. Even in this class, the possibility that the estimates can be in error by large amounts for individual fuels must be</p>
<p>recognized.</p>
<p>NOTE 3 The fuels used to establish the correlation presented in this International Standard are defined in annex A.</p>
