Current Projects.

  • Green Center: Energy-Efficient MPSoCs for Datacenters (GSRT funding for period 2012-2014).
    Abstract: The aim of this project is to design energy efficient Multi-core embedded processors that can be used as a low-power alternative to host cloud computing applications. Specifically the project aims to design efficient hardware accelerators that will augment Multi-processors Systems-on-a-Chip (MPSoC). The enhanced MPSoC (based on programmable FPGA with ARM cores) will be deployed in data centers that require low power consumption (e.g. MicroServers). We will investigate how to accelerate several tasks for data centers (e.g. MapReduce framework) by augmenting these processors with the right hardware acceleration units and efficient software optimizations in order to reduce the power consumption and increase the energy efficiency.

  • Supermicro: Energy Management Optimization of Autonomous Hybrid Systems (GSRT funding for period 2011-2013).
    Abstract: In an effort to reduce the spread of the greenhouse effect that is partly due to increased average global temperature with unpleasant results for the environment but also for the man himself, there is an incentive to develop renewable energy systems. Indeed according to the Kyoto Protocol, Greece is one of the signatory countries committed to reducing greenhouse gas emissions by 5.2-8%. Moving in this direction, it is proposed to make optimum use of solar and wind energy through a combination of autonomous hybrid systems combining one or more sources of renewable energy. These systems are connected in a single power network and cooperate on the management side to form a single set of Renewable Energy Sources system operating in an optimal way. The optimization aims to maximize both the power generation and the storage at peak times of RES, as well as the fulfillment of all design and operational constraints. Thus the proposed system consists of multiple energy systems: a) photovoltaic cells, b) wind turbines and c) fuel cells that supply a constant power to a certain electrical network. In periods of high power, in addition to the coverage of the energy load, power is given to produce hydrogen by electrolytic decomposition of water in an electrolysis device (Electrolyzer). The produced hydrogen is stored in compressed form, from where in can be utilized in fuel cells during periods of low availability of RES. The entire unit is supported by a system of batteries that operate continuously for the smooth flow of energy (charged from excess energy in the system and discharged to cover any deficit), while a diesel generator is used as a source of emergency (eg lack of hydrogen or dysfunction in a subsystem). In this way, the system is taking full advantage of existing excess of RES using long-term storage of hydrogen, and guarantees the secure service of the electricity network provided by the auxiliary power supply system.

Finished Projects.

  • Vision and Chemiresistor Equipped Web-connected Finding Robots (VIEW-FINDER), (1/12/2006 — 30/11/2009)  FP6-IST-2006-045541″, European Commission – Information Society Technologies (IST).
  • Architectures and Methodologies for Dynamic REconfigurable Logic (AMDREL), (1/3/2002 — 28/2/2005) FP5-IST-2001-34379, European Commission – Information Society Technologies (IST). (Awarded in VLSI 2005 and ASP-DAC 05).
  • Design of Low Power Embedded System for Implementation of Multimedia and Wireless LAN Networks (PENED’03-03ΕΔ593) (1/11/2005 — 30/06/2009) GSRT.
  • Memory Management Methodology for Real-Time and Low Power Embedded Multimedia Systems (PENED’99) (1/2/2000 — 31/7/2001) GSRT.
  • Also, participation in 12 national (partially supported by the EU) RTD projects, in 4 of them being the scientific responsible.
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