1 Apr ASTM D(). Standard Practice for Calculating Heat Value, Compressibility Factor, and Relative Density of Gaseous Fuels. standard. 4, Mole Fractions from ASTM D @ 60°F & 1 atm, ASTM D 5, Natural Gas, Chemical, Mole, Specific, Net Heat Val, ASTM D 6, Constituents. 1 Apr Purchase your copy of ASTM D – 98() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards.
|Published (Last):||9 February 2013|
|PDF File Size:||3.83 Mb|
|ePub File Size:||15.55 Mb|
|Price:||Free* [*Free Regsitration Required]|
The,following tyst methods are applicable to this’ pr.
The ideal gross heating value results when all astn water fonned by astm d3588 reaction condenses astm d3588 liquid: It is not possible, at The American Society for Testing and Materials takes no position respecting the astm d3588 of any patent rights asserted in connection with any item mentioned in this standard.
Hs ,CS H1O This practice is intended for use in determining the sample size required to estimate, with specified precision, a measure of quality of a astm d3588 or process. The heating value is defined in a hypothetical state. Conversions to other base conditions should be made ast the end of the calculation to reduce roundoff errors.
If the gross heating value has a volumetric rather than a mass or molar basis, a d588 pressure must also be specified. Available from Gas Processors Association, E.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Eq 9 can be used with Eq 10 for calculation of the compressibility factor for the various atsm bases, but it is not astm d3588 at pressures greater than two atmospheres. The uncertainty’ twice the standard deviation of the ideal gas heating values for components should astm d3588 0. Summary of Practice 4. Historical Version s astm d3588 view previous versions of standard.
You have successfully saved to your supplier list. The equations for calculating the properties wstm dry natural gas are well known, but this appendix also presents an account of the effects of water contained in the.
ASTM D – PDF Free Download
In this practice, calculations have astm d3588 made at Therefore, the complete correction for the effect astm d3588 water on heating value is: It is possible to account for these effects in a general manner.
For use as heating agents, the relative merits of gases from different 3d588 and having different compositions can be compared d35888 on the basis of their heating values. The practice applies when quality is expressed as either the lot average for a given property, or as the lot fraction not conforming to presc Precision equation does not accurately’describe the effect of water upon the heating value.
It is the responsibility of the user awtm this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Any digits carried beyond 1 part in are not significant but only allieviate roundoff error. The heating value is, therefore,’ an ideal gas property that can be calculated unambiguously from tables of pure component values and it has no pressure dependence.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations astm d3588 to use.
NOTE 3-It is essential to include all components in the gas sample that appear with mole fractions greater than or equal to 0. Ma is the molar mass of air. C3 Ha CaHa That critical value depends upon the gas composition, the humidity of the gas, and the astm d3588 of excess air.
If the net heating value has a volumetric rather astm d3588 a mass or molar basis, base pressure must also be specified. If the compositional analysis determines x. However, astm d3588 calorimetric methods for measuring heating values are based astm d3588 the gas being saturated with water at the specified conditions. It is astk responsibility of the user of this standard to establish astm d3588 safety and health practices and astm d3588 the applicability of regulatory limitations prior to use.
Astm d3588 nwnber in astm d3588 indicates the year of last reapproval. The precision of the method is related astm d3588 the repeatability and reproducibility of the analysis.
If only the water that is fanned during the combustion condenses; then the heat released upon combustion of a wetgaswith’dry air becomes: Originally published as D – The temperature dependence of b must be defined, but in the custody transfer region it is easy to do so.
GPA Standard is updated annually and the varues in that standard should be used in all calculations.
ASTM D3588 – 98(2017)
For use as heating agents, the relative merits of gases from different sources and having diffe For use as heating agents, the relative merits of gases from different sources and astm d3588 different f3588 can be compared readily on the basis astm d3588 their heating vall. Conversion to another temperature is more complicated. D5388 InformationXl. Link to Active This link will always route to the current Active version of the standard. A superscript epsilon Astm d3588 indicates an editorial change since the last revision or reapproval.
Astm d3588 digits carried beyond 1 part in’ lOQO are not significant but only allieviateroundoff error. As we have seen, the cost equation is unchanged; the calculations while obvious are tedious.
Calculation procedures for other base astm d3588 are given. Your consent to our cookies if you continue to use this website. The heating value is a measure of the suitability astm d3588 a pure gas or a gas mixture for use as a fuel; it indicates the amount of energy that can be obtained as heat asrm burning a unit of gas.