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Experiments

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Modelling Diesel Combustion

Part of the book series: Mechanical Engineering Series ((MES))

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Abstract

Experimental work is necessary to develop a basic understanding of the processes in the engine. This chapter describes the experimental set-up of the bomb for experimental interferometry, engine studies, and details of the engines used in the book for validation of the phenomenological models. The details of the experimental techniques for obtaining the experimental data needed for validating the phenomenology are included.

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Abbreviations

B :

Spalding’s mass transfer number (−)

BSU:

Bosch smoke unit (−)

C f , r :

Concentration of fuel at a radius of an axisymmetric evaporating, non-burning spray of the mixture of fuel vapour and air (−)

C i , r :

Concentration of various species, i at radius r of an axisymmetric burning spray jet at radius r (−)

C p :

Specific heat at constant pressure [J/(kg⋅K)]

d 0 :

Nozzle hole diameter (m)

d e :

Equivalent diameter of the nozzle hole, do [density of fuel/density of combustion products at flame temperature]½ (m)

FID:

Flame ionization detector (−)

h :

Planck's constant (m kg s)

k :

Conductivity (W/m K)

K i :

Gladstone–Dale constant for a species, i (m3/kg)

L :

Characteristic engine size (e.g., bore) (m)

M :

Molecular weight (kg/kmol)

n :

Refractive index (−)

r :

Radius of the jet spray measured from the axis of the axisymmetric jet spray (m)

T :

Temperature (K)

U j :

Velocity of the jet at the nozzle hole exit (m/s)

μ :

Dynamic viscosity (Pa s)

ν :

Frequency of the radiation (Hz)

ρ :

Density (kg/m3)

ρ rg :

Density of the products (kg/m3)

Φ:

Equivalence ratio (−)

∞:

Bulk air far away from the combustion and sprays (−)

air:

Air (−)

f :

Fuel (−)

i :

Specie i (−)

mix:

Mixture of fuel vapour and air (−)

r :

Mixture of fuel and air in an axisymmetric evaporating, non-burning spray (−)

r B :

Mixture of burned products and unburned fuel + air (−)

s :

Saturated vapour (−)

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Author information

Authors and Affiliations

  1. IIT Kanpur, Kanpur, India

    Dr. P. A. Lakshminarayanan

  2. Kirloskar Oil Engines Limited, Pune, India

    Yogesh V. Aghav

Authors
  1. Dr. P. A. Lakshminarayanan
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  2. Yogesh V. Aghav
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Corresponding author

Correspondence to P. A. Lakshminarayanan .

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Lakshminarayanan, P.A., Aghav, Y.V. (2022). Experiments. In: Modelling Diesel Combustion. Mechanical Engineering Series. Springer, Singapore. https://doi.org/10.1007/978-981-16-6742-8_3

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  • DOI: https://doi.org/10.1007/978-981-16-6742-8_3

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-16-6741-1

  • Online ISBN: 978-981-16-6742-8

  • eBook Packages: EngineeringEngineering (R0)

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