Thermophysical properties of Normafluid (ISO 4113) over wide pressure and temperature ranges

Chorążewski, Mirosław; Dergal, Fatiha; Sawaya, Terufat; Mokbel, Ilham; Grolier, J.-P.E.; José, Jacques

doi:10.1016/j.fuel.2012.05.059

Cited by 53 publications

(37 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to initiate this iterative procedure, heat capacities at the reference pressure must be known. These data were taken from the work of Chorą _ zewski et al [27] undertaken with the same fluid in the research project. The density results are listed in Table 4 and plotted as a function of pressure in Fig.…”

Section: Parameters Deviationsmentioning

confidence: 99%

High pressure thermophysical characterization of fuel used for testing and calibrating diesel injection systems

Ndiaye¹,

Bazile²,

Nasri³

et al. 2012

Fuel

View full text Add to dashboard Cite

Section: Parameters Deviationsmentioning

confidence: 99%

High pressure thermophysical characterization of fuel used for testing and calibrating diesel injection systems

Ndiaye¹,

Bazile²,

Nasri³

et al. 2012

Fuel

View full text Add to dashboard Cite

“…(7) will be approximated considering that a and C p do not depend on the pressure for diesel fuels. As an example to support this fact, [22] shows that C p is hardly affected by pressure for the ISO4113, which is a test fluid with thermo physical properties similar to those of diesel fuels. Thus, Eq.…”

Section: Density Determinationmentioning

confidence: 93%

“…Considering that C p for diesel fuels takes values from 1.89 to 2.37 J/K·g on the studied range of temperatures and pressures [21,22] and the small contribution of the third term of (13) on the total density, the estimated maximum error of this assumption is of 0.32%. On the other hand, a is computed from the density measurements at atmospheric pressure as: (14) In an analogous way to the analysis for the speed of sound that has already been reported, Figures 11 and 12 show the comparison of the n-Heptane experimental results with the data from [21] in order to check the validity of the methodology.…”

Section: Density Determinationmentioning

confidence: 99%

Experimental Characterization of the Thermodynamic Properties of Diesel Fuels Over a Wide Range of Pressures and Temperatures

Desantes¹,

Salvador²,

Carreres³

et al. 2015

SAE Int. J. Fuels Lubr.

View full text Add to dashboard Cite

The influence of pressure and temperature on some of the important thermodynamic properties of diesel fuels has been assessed for a set of fuels. The study focuses on the experimental determination of the speed of sound, density and compressibility (via the bulk modulus) of these fuels by means of a method that is thoroughly described in this paper. The setup makes use of a common-rail injection system in order to transmit a pressure wave through a high-pressure line and measure the time it takes for the wave to travel a given distance. Measurements have been performed in a wide range of pressures (from atmospheric pressure up to 200 MPa) and temperatures (from 303 to 353 K), in order to generate a fuel properties database for modelers on the field of injection systems for diesel engines to incorporate to their simulations.

show abstract

“…To visualize cavitation in the transparent nozzles, a refractive index matching method was used by adding high refractive index liquid to calibration oil (ISO 4113) [21]. At ambient temperature (T = 20°C), the vapor pressure of the mixed liquid was found to be around Pv = 5 Pa in a previous study [22]. The current activation signal delivered to the injector by an injector driving system IPOD from EFS company is shown in figure 2.…”

Section: Injector and Transparent Nozzlementioning

confidence: 99%

Effect of geometry of real-size transparent nozzles on cavitation and on the atomizing jet in the near field

Cao

Idlahcen

Blaisot

et al. 2017

Proceedings ILASS–Europe 2017. 28th Conference on Liquid Atomization and Spray Systems

View full text Add to dashboard Cite

Cavitation inception is very sensitive to the nozzle geometry. Two diesel-like transparent nozzles with sharp and round inlet edge were investigated under moderate injection pressure. By means of backlight imaging technique, images were recorded in two regions near the orifice: within ten orifice diameter downstream the nozzle and inside the nozzle, for different times after start of the injection. A cross-correlation technique was applied to images downstream the orifice to estimate the average velocity of the spray. The development of the spray was studied at the transient and full-opened stage, related to the needle lift motion. To analyse the flow inside the nozzle, the relative size of the vapour pockets was measured on the image and the relative frequency of the occurrence of cavitation was determined over image series. This approach permits to examine the time variation of the cavitation occurrence from the inlet to the outlet of the orifice. The results highlight the sensitivity of the cavitating flow to the shape of the inlet edge. Moreover, the trends of the variation over time of the velocity and of the cavitation frequency are very similar to each other but different for each geometry, indicating that the characteristics of the diesel spray in the near field is closely affected by the way cavitation is developing in the nozzle. Keywords diesel injection, index matching, backlight, liquid interface tracking, frequency of cavitation IntroductionFuel consumption and engine emission are important issues concerning transportation industries. Engine optimization still needs to be improved, not only to balance the global reduction of fossil fuel reserves, but also to reduce their environmental impact. There is a pressing need to address clean combustion objectives, by developing a better understanding and control of every process steps of internal combustion engines. Atomization of fuel is a key element as it impacts the whole combustion process by affecting the initial conditions of this process. In modern diesel engines, atomization efficiency was improved by considering high injection pressure in combination with small orifice diameter of only about a hundred micrometres or less. Large pressure variations of the fuel flow occurring inside injector nozzles promote cavitation occurrence. Indeed, cavitation occurs when the relative pressure drops locally below the vapour pressure of the fuel or when local stress is very high, resulting in the formation of vapour pockets or cavities in the nozzle orifice [1]. Nurick [2] proposed the first theoretical model to predict nozzle flow under cavitation, based on two-dimensional transparent single-orifice nozzles. Since then, similar nozzle designs were used to analyze the development of the cavitating flow and improve the model, by means of experiments [3,4,5,6,7] and simulations [8,9]. The flows in the nozzle were compared by changing either the L/D ratio or the inlet geometry of the orifice. Cavitation inception was found to be very sensitive to the nozzl...

show abstract

Thermophysical properties of Normafluid (ISO 4113) over wide pressure and temperature ranges

Cited by 53 publications

References 21 publications

High pressure thermophysical characterization of fuel used for testing and calibrating diesel injection systems

High pressure thermophysical characterization of fuel used for testing and calibrating diesel injection systems

Experimental Characterization of the Thermodynamic Properties of Diesel Fuels Over a Wide Range of Pressures and Temperatures

Effect of geometry of real-size transparent nozzles on cavitation and on the atomizing jet in the near field

Contact Info

Product

Resources

About