TEMPERATURE PROFILE WITHIN A MICROWAVE IRRADIATED BATCH REACTOR
Journal Title: Journal of Machine Construction and Maintenance - Year 2018, Vol 110, Issue 3
Abstract
The finite element method has been used here to investigate the volumetric temperature distribution differences between conventional and microwave heating for a rotating batch reactor containing water-based solutions.It was shown that the temperature distribution is much narrower with microwave heating compared to conventional heating, leading to conditions favourable for process intensification, and uniform particle growth. This effect is particularly pronounced for the first 60 seconds of heating. Thus, some of the claimed „non-thermal” microwave effects could be explained considering the different temperature distribution in the reaction volume for the two types of reactors, i.e. they can be ascribed to purely thermal effects.The computer simulations included 3D modeling, coupling with fluid-dynamics, heat transfer, and electromagnetic analysis, with insertion of a large number of not perturbative “virtual” temperature probes in the reactors.
Authors and Affiliations
Cristina LEONELLI, Witold Łojkowski, Paolo VERONESI
MINING CONTROL SYSTEMS AND DISTRIBUTED AUTOMATION
Distributed monitoring, control, and automation systems, often able to adapt and learn, are more widely used in industrial practice. Due to constantly increasing needs of safety and reliability...
A STUDY ON TECHNOLOGICAL PROPERTIES OF METALLIC SURFACES MARKED WITH DATA MATRIX CODES WITH LASER TECHNOLOGY
Marking products manufactured from steel and non-ferrous metals is a very important part of the process. Generally, they are used in the production of parts responsible for the health and safety of people in the airline,...
IMPACT OF MACHINING CONDITIONS ON EXPLOITAION STABILITY OF THERMOPLASTIC COMPOSITE SCINTILLATORS
The paper presents research results on the degradation of scintillators made out of thermoplastic composite materials based on polystyrene (PS). The samples were machined with the tools made out of three different materi...
TUNGSTEN DOPED TiB2 COATINGS OBTAINED BY MAGNETRON SPUTTERING
The aim of the work was to investigate the possibilities of shaping the properties of TiB2 coatings by doping with tungsten, which create hard boron phases (e.g., WB2, WB4, and W2B5). The coatings were produced by a DC m...
CHALLENGES AND NEW AREAS OF DEVElOPMENT FOR THE SPECTRAL METHOD OF FATIGUE LIFE ASSESSMENT
Many computer aided design methods that are being presented in the literature are using advanced fatigue life assessment methods. The problem with the assessment is especially interesting in t...