Above 6500 rpm the engine was not knock-limited for all fuels, except for pure n-heptane
(with 2% two-stroke oil).
An organic solution consisting of n-heptane
and thiophene was used as model fuel, and the inlet sulfur concentration was 200 mg [L.sup.-1].
where t represents the time, [tau] is the characteristic relaxation time which is directly related to the apparent diffusion coefficient [D.sub.app], q = (4[pi]n/[lambda]) sin ([theta]/2) is the wavevector, n is the solution refractive index which was assumed to be close to that of the continuous phase (n = 133 and n = 1.39 for water and n-heptane
, respectively), and [beta], which is close to 1, is the coherence factor.
Historically, 2,2,4-trimethylpentane (also known as iso-octane) has been utilized as the surrogate for the iso-alkane group since the surrogate mixture of 2,2,4-trimethylpentane and n-heptane
mimics gasoline combustion to a good degree of accuracy.
1, Methane; 2, ethane; 3, propane; 4, isobutane; 5, n-butane; 6, isopentane; 7, n-pentane; 8, methyl cyclopentane; 9, 2-methylpentane; 10, n-hexane; 11, methyl cyclohexane; 12, 2/3-methylhexane; 13, n-heptane
; 14, benzene; 15, n-octane; 16, methylbenzene; 17, n-nonane; 18, [beta]-xylene.
In their computational study, including the neat PRF compounds iso-octane and n-heptane
, kinetic and thermophysical effects on ignition delay times over conditions (600-1100 K, 9 and 60 atm) similar to this study were investigated.
Table 6 and 7 showed the activities of lipase and phospholipase enzymes in different solvents and results indicated that in n-heptane
, both the enzymes showed their maximum activities.
A simplified reaction mechanism for n-heptane
consisting of 22 chemical species in 18 reaction steps is applied  based on good agreement with experimental data obtained with this compact description in previous studies in constant-volume chambers [19, 20, 21] as well as engines [27, 28].
In this sense, DAO asphaltene content was determined by extraction using an excess amount of n-heptane
according to a standard procedure having a measured deviation of [+ or -] 0.01% that was described in previous studies [31, 105].
A reduced mechanism for the diesel-syngas dual fuel was constructed by direct relation graph and sensitivity analysis with the detailed mechanism of n-heptane
by the Lawrence Livermore Laboratory.
Activation time, s 60 component Composition, % mole Sample I 1,2-dimethylcyclopentane 0.108 n-heptane
7.10 Sample II cyclohexane 10.683 1-methyl-3-propylbenzene 12.093 1-butylbenzene 6.35 Activation time, s 300 component composition, % mole Sample I 1,2-dimethylcyclopentane 0.108 n-heptane
7.10 Sample II - - 1-methyl-3-propylbenzene 14.812 1-butylbenzene 6.45 Table 4: The dependence of the redistribution of natural gas components in hydrated phase starting from [P.sub.dissociation] of individual hydrates.
BP waste adsorbed thorium from SSAS at different operating conditions were segregated and classified according to it's contain of thorium and utilization from these remaining samples as a promoter for catalyst used in n-heptane
cracking: zeolite type Y.