Pressure-aided microwave rubber vulcanization in a ridged three-zone cylindrical cavity [0.03%]
高压微波辐照下周期阶梯腔内橡胶硫化研究
JM Catala-Civera,S Giner-Maravilla,D Sanchez-Hernandez et al.
JM Catala-Civera et al.
The characteristics of pressure-assisted microwave vulcanization of rubber were studied in a monomode cavity. For this purpose a modified cylindrical cavity was designed taking into account the external pressure of dielectric molds at the s...
Microwave heating in the hydrogen peroxide oxidation of benzene on zeolite catalysts [0.03%]
分子筛催化剂上过氧化氢氧化苯反应的微波加热效应研究
MT Radoiu,I Calinescu I,P Chipurici et al.
MT Radoiu et al.
In this paper benzene hydroxylation with hydrogen peroxide (H2O2) in the presence of the titan-silicates-zeolites was studied. The initial catalyst, HZSM-5 zeolite type was treated to obtain both cobalt- and titan-silicates--zeolite. These ...
Coupled electromagnetic and thermal modeling of microwave oven heating of foods [0.03%]
食品微波炉加热的电磁和热耦合模型
H Zhang,A K Datta
H Zhang
Temperature distributions from heating in a domestic microwave oven were studied by considering the coupling between the electromagnetics and heat transfer through changes in dielectric properties during heating. Maxwell's equations for ele...
C Wu,R Zhan,W Huang
C Wu
We describe a slotted waveguide field applicator and present the results of experimental investigation. The experimental results show that it can efficiently transfer power to plasma in the wide pressure range. Specially, it is able to prod...
T Günel
T Günel
An optimization approach to the synthesis of radial stubs using numerical model is presented. Microstrip and coplanar waveguide radial stubs are considered. The results are compared in terms of the lengths of the radial stubs.
Development of process equipment to separate nonthermal and thermal effects of RF energy on microorganisms [0.03%]
C Brunkhorst,D Ciotti,E Fredd et al.
C Brunkhorst et al.
We developed a modified radio frequency (RF) dielectric heater, as a component of a continuous process, for isolating thermal and nonthermal effects of RF energy on microorganisms in liquid foods. The concept combines instantaneous input of...
Simulation of microwave, conventional and hybrid ovens using a new thermal modeling technique [0.03%]
J Haala,W Wiesbeck
J Haala
This paper presents an efficient simulation tool and results for conventional, microwave and combined heating. A new thermal modeling technique for the simulation of conductive and radiant heat transfer is presented. The conductive heat tra...
Dielectric properties at microwave frequencies studied in partially filled cylindrical TE011 cavities [0.03%]
M Regier,H Schubert
M Regier
To measure mean complex dielectric constants of heterogeneous materials with high dielectric losses (like emulsions or granular materials), partially filled TE011 cavities with a time consuming calibration procedure have been used [Persch, ...
I A Ali
I A Ali
A tunable microwave applicator for extraction of date juice and similar products has been developed, designed and constructed. It consists of two main units: a microwave unit and a press/filter unit. The microwave unit consists of a tunable...
R I Neophytou,A C Metaxas
R I Neophytou
In this paper the resonant modes of a radio frequency industrial heating applicator system are determined numerically. This is carried out using a finite element eigenvalue calculation of the electric field of the system. Both the complex l...