1973
DOI: 10.1002/aic.690190307
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Radiation profiles in an empty annular photoreactor with a source of finite spatial dimensions

Abstract: A model of radiant energy emission for tridimensional sources has been developed and used to predict radiation flux density profiles in an annular photochemical reactor. This paper presents results for a reactor without dispersion or absorption effects; that is, reflexions and refractions have been neglected and the energy has been assumed to propagate in a transparent medium.Computed radiation profiles agree well with published experimental data in a similar lamp‐reactor set up.Also, the formulation does not … Show more

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Cited by 104 publications
(63 citation statements)
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“…In addition, a combination of an FR distribution model with a computational fluid dynamics model allows the optimization of the configuration of a UV reactor to achieve higher efficiencies (Sozzi and Taghipour, 2006;Elyasi and Taghipour, 2010a;Chen et al, 2011). Some numerical models have been developed for the determination of the FR distribution in UV reactors including the point source summation (PSS) (Jacob and Dranoff, 1970), line source integration (LSI) (Blatchley, 1997) and extense source with volumetric emission (ESVE) (Irazoqui et al, 1973(Irazoqui et al, , 2000 models. Bolton (2000) developed a model that considered some key factors, such as reflection and refraction of UV at the quartz sleeve and the absorbance of water.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, a combination of an FR distribution model with a computational fluid dynamics model allows the optimization of the configuration of a UV reactor to achieve higher efficiencies (Sozzi and Taghipour, 2006;Elyasi and Taghipour, 2010a;Chen et al, 2011). Some numerical models have been developed for the determination of the FR distribution in UV reactors including the point source summation (PSS) (Jacob and Dranoff, 1970), line source integration (LSI) (Blatchley, 1997) and extense source with volumetric emission (ESVE) (Irazoqui et al, 1973(Irazoqui et al, , 2000 models. Bolton (2000) developed a model that considered some key factors, such as reflection and refraction of UV at the quartz sleeve and the absorbance of water.…”
Section: Introductionmentioning
confidence: 99%
“…Many research groups have contributed to the development of light distribution models that describe the irradiation field inside the homogeneous reactors based on some theoretical assumptions; however, the most frequently used models are the line source spherical emission (LSSE), 8 the diffused line source emission (DLSE), 9,10 and the extense source with volumetric emission model (ESVE). 18,19 It was found in an earlier study that all three models predict quite accurately the irradiance along the radius and no model has apparent advantages over other models. 20 However, because of a complex algorithm, the ESVE model takes much longer computational time to converge; thus, in this study, the two simple line source models are employed to evaluate the radiation field.…”
Section: Adopted Modelsmentioning
confidence: 93%
“…7). According to Irazoqui et al [20], the value of the incident radiation (G l ) at a point x inside the reactor is obtained by integration over the solid angle of incidence (dW sin q dq df) as shown in Eqn. 20.…”
Section: Methodsmentioning
confidence: 99%