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SPHERICAL RESONATOR SPEED OF SOUND MEASUREMENTS OF NEW SPHERICAL RESONATOR SPEED OF SOUND MEASUREMENTS OF NEW

SPHERICAL RESONATOR SPEED OF SOUND MEASUREMENTS OF NEW - PowerPoint Presentation

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SPHERICAL RESONATOR SPEED OF SOUND MEASUREMENTS OF NEW - PPT Presentation

alternative GAS MIXTURES Fernando J Pérez Sanz Universidad de Valladolid Spain Motivation of the study Depleting of fossil fuels reservoirs Increasing prices of fuels Environmental problems ID: 500332

sound speed mol desv speed sound desv mol results eos 273 equation methods acoustic resonance gerg comparison mixture 2008

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Slide1

SPHERICAL RESONATOR SPEED OF SOUND MEASUREMENTS OF NEW alternative GAS MIXTURES

Fernando J. Pérez Sanz

Universidad de Valladolid

SpainSlide2

Motivation of the studyDepleting of fossil fuels reservoirs.

Increasing prices of fuels

Environmental problems

Global warming

Greenhouse effect

Acid rain

New fuel are being developed

Mixture properties

recuired

Heat Capacities

Equation of StateSlide3

Methods

Thermodynamics

Speed of sound is an important thermodynamic parameter from which heat capacities and

EoS

can be measured.

Speed of sound is fitted to a Virial equation: Slide4

Methods

A

coustic

Resonance

Determination of radius by acoustic resonance in ArgonSlide5

Results Speed of sound measurementsSlide6

Results Comparison to GERG-2008 EoS (I)Slide7

Results Comparison to GERG-2008 EoS (II)

x

CO

=0,05

x

CO=010

T=273,16K

desv

(%)

T=325K

desv

(%)

T=273,16K

desv

(%)

T=325K

desv

(%)

u

0

(m/s)

336,9526

0,0245

367,4662

0,0235

337,0211

0,0448

367,4763

0,0262

γ

pg

20,7665

0,0485

1,3998

0,0453

1,4009

0,0891

1,3999

0,0508

C

v0

(J/mol-K)

29,0810

0,1658

20,7948

0,1546

20,7370

0,3123

20,7908

0,1833

C

p0

(J/mol-K)

1,4004

0,1202

29,1093

0,1123

29,0515

0,2215

29,1053

0,1294

β

a

(m3/mol)

1,2545E-05

9,9781

2,6715E-05

0,9523

1,2014E-05

12,8407

2,6446E-05

1,7048

γ

a

(m3/mol)

2

5,0787E-09

0,2938

4,0764E-09

0,0826

5,1696E-09

0,2826

4,1458E-09

0,0778Slide8

Future workCoal Mine

Methane

Biogas

Mixture.CO2-N2 MixturesSlide9

Questions