Calculation of Available-Energy Quantities

Rodríguez, Luis Mario González

doi:10.1021/bk-1980-0122.ch003

Cited by 38 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For substances that contain mainly C, H, 0, and N, the values ofH.H.V. are essentially identical to those of [30 (see e.g., Szargut and Petela, 1965;Rodriguez, 1980;Fan and Shieh, 1980). For a structurally complicated substance, such as coal, charcoal, coke, liquid fuel, biomass, oil shale, or waste material, its higher heating value (H~H.…”

Section: Introductionsupporting

confidence: 55%

See 1 more Smart Citation

Estimation of Energy (Enthalpy) and Exergy (Availability) Contents in Structurally Complicated Materials

Shieh

Fan

1982

Energy Sources

View full text Add to dashboard Cite

Section: Introductionsupporting

confidence: 55%

“…Several investigators (see, e.g., Szargut and Styrylska, 1964;Szargut and Petela, 1965;Rodriguez, 1980) have found that the ratio of the specific exergy (availability) to the specific enthalpy relative to the dead state, e •, in general, or…”

Section: • [Hi [Oj Inimentioning

confidence: 99%

Estimation of Energy (Enthalpy) and Exergy (Availability) Contents in Structurally Complicated Materials

Shieh

Fan

1982

Energy Sources

View full text Add to dashboard Cite

“…For this propose, High Heating Value (HHV) of each fuel was calculated in an IKA C 200 calorimeter and was used to calculate LHV, taking into account the vaporization heat of the water that appears during the combustion reaction. The fuel chemical exergy is calculated following the expression developed by Szargurt and Styrylska, mentioned in Rodríguez [31] for liquid fuels, where H, C, O and S correspond to the mass fraction of each element, as follows in expression (4). The mass fraction of H, C, O and S was determined considering the fatty acid composition of olive-pomace oil methyl ester (Table 2) and assuming a conversion (FAME) value of 100%.…”

Section: Exergy Analysismentioning

confidence: 99%

Effect of the use of olive–pomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis

López

Quintana

Ruiz

et al. 2014

Energy Conversion and Management

View full text Add to dashboard Cite

“…Exergy of liquid fuels C y H z , which are used in compression ignition engines is approximated as follow :

a_{f} = LHV (1.04224 - 0.011925 \frac{y}{z} + \frac{0.042}{z})

\frac{dE x_{f}}{italicdθ} = a_{f} \frac{d m_{f}}{italicdθ}

…”

Section: Second Law and Exergy Analysismentioning

confidence: 86%

Exergy analysis in a low heat rejection IDI diesel engine by three dimensional modeling

Jafarmadar

Tasoujiazar

Jalilpour

2013

Int. J. Energy Res.

View full text Add to dashboard Cite

SUMMARY Higher heat loss is one of the major problems in indirect injection diesel engine, which can be overcome by means of low heat rejection (LHR) concept. For this purpose, at the present work, piston and liner of the main chamber engine are insulated. Energy analyses for baseline and LHR engine cases are carried out during a closed engine cycle using a computational fluid dynamics code. Also, exergy analyses for these cases are carried out by a developed in‐house computational code. The numerical analyses are carried out at four different loads (25%, 50%, 75%, and 100%) and in maximum torque engine speed of 730 rpm. The numerical results of pressure in cylinder for baseline engine at 50 and 100% load operations are compared with the corresponding experimental data and achieved a good agreement. The comparison of the results for two cases shows that when the load increases from 25% to 100% (in 25% increments), heat loss exergy decreases by 68.73%, 80.24%,91.38%, and 74.97% respectively in LHR engine in comparison to baseline engine. Also, exergy efficiency increases by 17.2%, 12.4%, 6.07%, and 11.81% respectively in LHR engine. Copyright © 2013 John Wiley & Sons, Ltd.

show abstract

Calculation of Available-Energy Quantities

Cited by 38 publications

References 0 publications

Estimation of Energy (Enthalpy) and Exergy (Availability) Contents in Structurally Complicated Materials

Estimation of Energy (Enthalpy) and Exergy (Availability) Contents in Structurally Complicated Materials

Effect of the use of olive–pomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis

Exergy analysis in a low heat rejection IDI diesel engine by three dimensional modeling

Contact Info

Product

Resources

About