Journal ArticleDOI
Design of packed bed reactors : guides to catalyst shape, size, and loading selection
S Afandizadeh,E. A. Foumeny +1 more
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In this article, the authors addressed certain issues, which would elucidate the task of pellet/packing design in packed bed-based unit operations, which is very much influenced by the structure of the packing matrix, which in turn is governed by shape, dimensions and the loading of the constituent particles.About:
This article is published in Applied Thermal Engineering.The article was published on 2001-04-01. It has received 124 citations till now. The article focuses on the topics: Packed bed.read more
Citations
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Journal ArticleDOI
Reactor technologies for biodiesel production and processing: a review.
Meisam Tabatabaei,Mortaza Aghbashlo,Mona Dehhaghi,Mona Dehhaghi,Hamed Kazemi Shariat Panahi,Arash Mollahosseini,Mehdi Hosseini,Mohamad Mojarab Soufiyan +7 more
TL;DR: In this article, the authors comprehensively reviewed biodiesel manufacturing techniques from natural oils and fats using conventional and advanced technologies with an in-depth state-of-the-art focus on the transesterification unit.
Journal ArticleDOI
Progress in the direct catalytic conversion of methane to fuels and chemicals
Canan Karakaya,Robert J. Kee +1 more
TL;DR: In this article, the state-of-the-art in catalytic processes to convert methane (a major component of natural gas) to more valuable hydrocarbons as fuels or chemicals is reviewed.
Journal ArticleDOI
Enhanced Voidage Correlations for Packed Beds of Various Particle Shapes and Sizes
Farid Benyahia,K. E. O'Neill +1 more
TL;DR: Mean voidage in packed beds of spherical, cylindrical, and nonconventional cylinrical particles has been accurately measured and the data obtained were employed to develop predictive mean voidage correlations that were not only simpler to use and more accurate than existing correlations, but also helped in developing a single general voidage correlation incorporating a particle shape factor applicable to a variety of particle shapes as discussed by the authors.
Journal ArticleDOI
Optimized solar-powered liquid desiccant system to supply building fresh water and cooling needs
TL;DR: In this article, the feasibility of using a solar-powered liquid desiccant system to meet both building cooling and fresh water needs in Beirut humid climate using parabolic solar concentrators as a heat source for regenerating the liquid Desiccant.
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A review on technical, applications and economic aspect of packed bed solar thermal energy storage system
Abhishek Gautam,R.P. Saini +1 more
TL;DR: In this article, a packed bed storage system is used to store the energy during its availability and supply that stored energy at the time of requirement, which can be used for various applications of solar thermal system for different temperature ranges.
References
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Statistics for Research
S. M. Dowdy,Stanley Wearden +1 more
TL;DR: In this article, the authors present a statistical approach for estimating the expected value and variance of a Probability Distribution, which is a measure of the probability of a given sample having a given distribution.
Journal ArticleDOI
Correlations for wall and particle shape effects on fixed bed bulk voidage
TL;DR: In this paper, the authors derived the void fraction as a function of particle-to-tube diameter ratio for equilateral hollow cylinders and equilateral solid cylinders, provided a correction factor is included that allows for internal voidage and interpenetration of packings.
Journal ArticleDOI
Structural properties of packed beds — A review
D. P. Haughey,G. S. G. Beveridge +1 more
TL;DR: Some structural properties of packed bed systems on both the local and overall scales which are available in the literature and of interest in chemical engineering applications are discussed in this paper, where regular and random packings of uniformly sized spheres are initially analyzed as a basis for the later examination of the more general case of random packed beds containing particles of various sizes and shapes, with or without restraining surfaces.
Journal ArticleDOI
Characterization of transport properties for fixed bed in terms of local bed structure and flow distribution
TL;DR: In this article, it was shown that earlier attempts to identify velocity distribution without relating it to bed structure have resulted in wrong characterization of the system and explains the difficulties arising from attempts to provide a rational basis for correlations of film heat transfer coefficients at the wall of packed tubes.
Journal ArticleDOI
Correlations of pressure drop in packed beds taking into account the effect of confining wall
TL;DR: In this paper, the effect of structural properties on the pressure drop of fluids through packed beds is examined and appropriate correlations with wide practical applicability can be established with respect to structural properties.