Workshop Abstracts

Hack your Thoughts: Key Aspects of Brain-Computer-Interfacing

by Dr. Anjula De Silva, Dr. Thilina Lelarathne, University of Moratuwa, Sri Lanka

May 31, 2018

9:00am - 4:00pm


Waste Water Treatment Fundamentals, Plant Monitoring, and Operations

Dr. P.G. Rathnasiri, University of Moratuwa, Sri Lanka

May 31, 2018

9:00am - 12:00pm

Workshop introduces fundamentals of waste water treatment, operation and monitoring. Discussion begins with characterization of wastewater/solid waste and different techniques available. Then biological wastewater treatment will be classified with the objective of understanding aerobic, anaerobic, suspended, attached growth processes and will be presented with established industrial wastewater treatment plants. Overview of organic carbon, bio Phosphorous and nitrogen removal will be presented. Successful design and operation of any wastewater/solid waste treatment plant require knowledge on microorganisms involved, specific reactions they perform, nutritional needs and more importantly environmental and operating parameters which affect for their better performance. Different unit operations belong to primary, secondary and tertiary treatment and their performance will be also discussed. Reactor types used in typical aerobic and anaerobic processes will be presented with the objective of guiding environmental engineer for screening different options. Significance of applying simulations for analysis of wastewater treatment plant will be presented with AQUASIM 2.1f dynamic simulator.

Photovoltaic Power Conversion Systems: Current Trends

Dr. Dulika Nayanasiri, University of Moratuwa, Sri Lanka

May 31, 2018

1:30pm - 4:30pm

Photovoltaic (PV) power conversion systems gain attraction due to low energy pay-back time and low carbon foot print compared to other renewable energy technologies such as wind. Centralized and distributed power conversion systems are used to convert solar energy into electrical energy. Distributed PV power conversion systems are frequently used in small and medium scale applications. Module and sub module level power converters are used in distributed systems such as roof-top PV. However, intermittent nature and seasonal behavior of the solar energy limits the applications of PV as a continuous power source. Energy storing element can be integrated to the system to circumvent this drawback. Application specific energy storing methods improve power processing capability of the system. Such an integration can be done using DC systems due to in-born characteristics of renewable generators and energy storing elements. This gives rise to concept of micro and nano-grids based on DC. DC nano-grids with integrated communication capabilities improve user experience with respect to the concept of zero net energy home. Power electronic converters and communication protocols having energy transfer capability play a significant role in the realization of such a system.

In this workshop, we are going to talk about existing PV power conversion systems architectures and converter topologies to identify limitations of the state of the art technologies. The proposed system architectures such as networked DC nano-grids to circumvent those limitations will be discussed emphasizing current trends.