Flax stems were subjected to microwave drying at controlled temperatures. The rate of drying was then compared with conventional hot air drying. The product temperature was maintained at 40°C, 60°C and 80°C for both microwave and hot air drying. The moisture content of flax stem was about 70% (wet basis). The microwave drying was conducted in a microwave apparatus which recorded mass, product temperature, incident microwave power, reflected microwave power and inlet/outlet air temperature. The final moisture content for experiment was set to 9% (wet basis). Microwaveconvective drying ensured about 30% to 70% reduction of drying time for drying flax straw as compared to hot air drying. Curve fitting with different mathematical models were carried out and all the models were fitted well for both hot air and microwave drying. The tensile strength of flax straw, measured with an Instron apparatus, increased with an increase in the processing temperature of both processes. Hot air dried flax straw showed the greatest tensile strength and modulus of elasticity at processing temperatures of 60°C and 80°C with a significant difference.
- Inderscience Publishers
- Effect of microwave and hot air drying on flax straw at ...
Assessing Clean Air Zones with ADMS-Urban
CERC develop the world-leading model ADMS-Urban which is designed for assessing air quality interventions such as Clean Air Zones (CAZ) and Low Emissions Zones (LEZ). For example, ADMS-Urban is being used by · Transport for Greater Manchester to model CAZ options · Glasgow City Council to model LEZ proposals Contact CERC now for · ADMS air quality software · Consultancy services for the assessment of CAZ, LEZ etc Training from experts in the use of our software for these...
Selecting the Right Air Quality Monitor
There are many types of air quality monitors available, but which one is the best choice for measuring gaseous air pollutant concentrations? There are two classes of such air quality monitors: sampling monitors and in-situ monitors (“in-situ” = “in the original position”). Sampling monitors utilises a manifold through which the air to be analysed is pumped. A small air sample is then enclosed in a cell where its molecular content can be analysed. The analysis method varies depending on...
AQMesh used to measure local air quality at Surrey school
Cleves School in Weybridge, Surrey (UK) has used AQMesh to measure pollution at the primary school’s entrance. The project, led by Dr. Edward Salter over the school’s summer term, aimed to understand exposure of the children (aged 7-11) to dangerous pollutant gases, with particular interest in the levels of nitrogen dioxide (NO2) and ozone (O3). Initial findings showed that levels of O3 exceeded 100µg/m3 on several occasions during the high temperatures in June, and a daily pattern of gas peaks...
AERMOD View™ - Gaussian Plume Air Dispersion Model - AERMOD Release Notes Versions 9.3, 9.4, and 9.5
Receptor Pathway Sensitive Receptor Summary Report Modelers can now flag discrete receptors as Sensitive, and AERMOD View will produce a Sensitive Receptor Summary Report which details concentrations at the flagged receptors. This is useful when needing to quickly find concentrations at specific receptors. Tile Maps Updates to Open Cycle Maps The Open Cycle Maps server was updated to reflect the most up-todate server settings and map hosts. Please, donwload AERMOD Release Notes pdf below.
Numerical modelling of a three-phase internal air-lift circulating photocatalytic reactor
The photocatalytic degradation process has been recognized as a low-cost, environmentally friendly and sustainable technology for water and wastewater treatment. As a key carrier of the photocatalytic process, the semiconductor TiO2 has been used in many studies. Analysis and modelling of hydrodynamics in the three-phase flow system can provide useful information for process design, operation and optimization of the three-phase flow photocatalytic reactor, which requires research on the mixing and flow characterist...