Constantinos Condaxakis

This article proposes a mixture of actions for the development of an effective and rational energy transition plan for all sectors and for all types of onshore final energy use in Crete. Energy transition is initiated with an appropriate capacity building campaign. The plan is based on the introduction of energy saving measures and the exploitation of all the locally available energy resources (wind, solar, geothermal potential, biomass), integrated in a cluster of centralized and decentralized power plants and smart grids to produce electricity and heat and for the transition to e-mobility. The core of the energy transition in Crete will be a set of 14 wind parks and Pumped Hydro Storage systems (PHS) for electricity generation and 12 Combined Heat and Power plants, properly designed and dispersed in the insular territory. Economic analysis is executed for the proposed essential power plants on the island. Biomass, solar and geothermal potential can cover the heating demand in Cret...

The fractures of the upper end of the femur presents one of the most important medico-social problems in the developed countries of Europe and North America and the developed and under development countries of Asia and other areas of our planet. It is a real epidemic with an increasing rate, higher than the rate expected, due to the increasing elderly population. The mortality rate, the complications and in general the social, and economic cost of these injuries are particularly high. The hip fractures in 1999 were 800 in Crete and 16000 were estimated in Greece. Ninety-five percent of these fractures are due to falls mainly within the house and 80% occur to individuals over the age of 70 years. During last decade, the need to prevent fractures and protect the elderly against falls led to the design and production of hip protectors. The design concept of a hip protector aiming to protect the hip during a fall is the object of this study. The beginning of our project was the biomecha...

The current work focuses on establishing the parameters that influence the wind’s behavior over the Aegean and Ionian Seas and estimating the wind potential in the region based on long-term historic climate data. Combining a downscaling technique performed with the well-founded WRF-ARW computational algorithm and a number of simultaneous meteorological station time series, an attempt is made to investigate how regional changes may affect low-altitude wind speed distribution at hub height (100 m a.s.l.). The provided time-series coastal data span the entire region of interest from north to south. WRF-ARW v.3.9 is utilized to associate the geostrophic wind distribution obtained from long-term Copernicus ERA5 wind data with the localized wind potential over lower altitudes. Evaluation and correlation of the observational data to the predicted wind climate are performed, and the statistical differences that arise are investigated. High-accuracy wind resource potential maps are thus obta...