ASTM D2890-92(1996)

Standard Test Method for Calculation of Liquid Heat Capacity of Petroleum Distillate Fuels

SCOPE
1.1 This test method describes the calculation of liquid heat capacity, Btu/lb[dot]°F (kJ/kg[dot]K), at atmospheric pressure, of petroleum fuels for which distillation data may be obtained in accordance with Test Method D86 without reaching a decomposition point prior to obtaining 90 volume% distilled.  
1.2 This test method is not applicable at temperatures less than 0°F (-18°C) and greater than 60°F (16°C) above the volumetric average boiling point of the fuel.
1.3 The values stated in inch-pound units are the preferred units. The values in parentheses are for information only.
1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Dec-1995
• Technical Committee: D02 - Petroleum Products, Liquid Fuels, and Lubricants
• Drafting Committee: D02.04.0K - Correlative Methods

Relations

• Replaced By: ASTM D2890-92(2003) - Standard Test Method for Calculation of Liquid Heat Capacity of Petroleum Distillate Fuels
• Effective Date: 10-May-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn. Contact
ASTM International (www.astm.org) for the latest information.
Designation: D 2890 – 92 (Reapproved 1996) An American National Standard
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
Calculation of Liquid Heat Capacity of Petroleum Distillate
Fuels
This standard is issued under the fixed designation D 2890; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope is low, the calculated values are similar to saturated liquid heat
capacities in the temperature-pressure range required for most
1.1 This test method describes the calculation of liquid heat
engineering design.
capacity, Btu/lb · °F (kJ/kg · K), at atmospheric pressure, of
petroleum fuels for which distillation data may be obtained in
5. Data Requirements
accordance with Test Method D 86 without reaching a decom-
5.1 Distillation temperatures at (in °F) 10, 30, 50, 70, and 90
position point prior to obtaining 90 volume % distilled.
volume % distilled obtained in accordance with Test Method
1.2 This test method is not applicable at temperatures less
D 86.
than 0°F (−18°C) and greater than 60°F (16°C) above the
5.2 API gravity determined in accordance with Test Method
volumetric average boiling point of the fuel.
D 287 or a method of equivalent accuracy.
1.3 The values stated in inch-pound units are the preferred
units. The values in parentheses are for information only.
6. Procedure
1.4 This standard does not purport to address all of the
6.1 Calculate to the nearest 0.1 unit the slope of the Test
safety concerns, if any, associated with its use. It is the
Method D 86 distillation curve, °F/volume %, as the difference
responsibility of the user of this standard to establish appro-
between the 10 and 90 volume % distilled temperatures di-
priate safety and health practices and determine the applica-
vided by 80.
bility of regulatory limitations prior to use.
6.2 Calculate to the nearest 1°F the volumetric average
boiling point (VABP) as the sum of Test Method D 86 10, 30,
2. Referenced Documents
50, 70, and 90 volume % distilled temperatures divided by 5.
2.1 ASTM Standards:
6.3 Obtain a temperature correction to the nearest 1°F from
D 86 Test Method for Distillation of Petroleum Products
Fig. 1, using the slope and VABP calculated in accordance with
D 287 Test Method for API Gravity of Crude Petroleum and
6.1 and 6.2. Calculate the mean average boiling point (Me-
Petroleum Products (Hydrometer Method)
ABP) as the VABP plus the correction.
6.4 Obtain to the nearest 0.1 unit the Watson characteriza-
3. Summary of Test Method
tion factor, K, from Fig. 2 using the determined API gravity
3.1 The Watson characterization factor, K, is obtained from and calculated MeABP.
a graphical correlation relating determined Test Method D 86
6.5 Obtain the calculated heat capacity at each specified
distillation data and K. The liquid heat capacity is obtained, temperature, either graphically from Fig. 3 or by solving the
either graphically or mathematically, from correlations relating
following equation.
calculated heat capacity, temperature at which heat capacity is
C 5 @0.6811 2 0.308 G 1 ~0.000815 2 0.000306 G!T#
p
being calculated, determined API gravity, and K.
~0.055 K 1 0.35! (1)
NOTE 1—Details of the method have been published.
where:
C 5 heat capacity, Btu/lb · °F,
p
4. Significance and Use
G 5 specific gravity,
4.1 Heat capacities obtained by this method are those at
T 5 temperature, °F, and
atmospheric pressure. However, because the temperature range
K 5 Watson characterization factor
NOTE 2—The broken lines in Fig. 3 illustrate the graphical procedure
for the following example:
This test method is under the jurisdiction of ASTM Committee D-2 on
Calculate the heat capacity at atmospheric pressure and 190°F of a
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
petroleum distillate fuel having an API gravity of 40 and Test Method
D02.04 on Hydrocarbon Analysis.
D 86 distillation temperatures of 239, 261, 288, 321, and 3
...