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1

Optimization of biogas production from olive-oil mill wastewater, by codigesting with diluted poultry-manure

John Gelegenis, Dimitris Georgakakis, Irini Angelidaki, Nicholetta Christopoulou, Maria Goumenaki

Journal:

Year:

2007

Language:

english

File:

PDF, 503 KB

english, 2007

2

Optimization of biogas production by co-digesting whey with diluted poultry manure

John Gelegenis, Dimitris Georgakakis, Irini Angelidaki, Vassilis Mavris

Journal:

Renewable Energy

Year:

2007

Language:

english

File:

PDF, 202 KB

english, 2007

3

A simplified quadratic expression for the approximate estimation of heating degree-days to any base temperature

John J. Gelegenis

Journal:

Year:

2009

Language:

english

File:

PDF, 510 KB

english, 2009

4

A numerical method for the solution of geothermal reservoir model equations

J.J. Gelegenis, V.A. Lygerou, N.G. Koumoutsos

Journal:

Year:

1989

Language:

english

File:

PDF, 759 KB

english, 1989

5

Analysis of Muskingum Equation Based Flood Routing Schemes

Gelegenis, John J., Serrano, Sergio E.

Journal:

Journal of Hydrologic Engineering

Year:

2000

Language:

english

File:

PDF, 45 KB

english, 2000

6

Optimum insulation thickness for external walls on different orientations considering the speed and direction of the wind

Axaopoulos, Ioannis, Axaopoulos, Petros, Gelegenis, John

Journal:

Year:

2014

Language:

english

File:

PDF, 1.66 MB

english, 2014

7

Diagrams for the Correction of Heating Degree-Days to Any Base Temperature

Gelegenis, John J.

Journal:

International Journal of Green Energy

Year:

2010

Language:

english

File:

PDF, 541 KB

english, 2010

8

Optimal economic thickness of various insulation materials for different orientations of external walls considering the wind characteristics

Axaopoulos, Ioannis, Axaopoulos, Petros, Panayiotou, Gregoris, Kalogirou, Soteris, Gelegenis, John

Journal:

Year:

2015

Language:

english

File:

PDF, 5.86 MB

english, 2015

9

Heating of a fish wintering pond using low-temperature geothermal fluids, Porto Lagos, Greece

John Gelegenis, Paschalis Dalabakis, Andreas Ilias

Journal:

Year:

2006

Language:

english

File:

PDF, 335 KB

english, 2006

10

Estimation of hourly temperature data from their monthly average values:: case study of Greece

Journal:

Renewable Energy

Year:

1999

Language:

english

File:

PDF, 231 KB

english, 1999

11

Rapid estimation of geothermal coverage by district-heating systems

Journal:

Year:

2005

Language:

english

File:

PDF, 325 KB

english, 2005

12

Use of a probabilistic model to design energy transmission and distribution networks for low enthalpy geothermal multiple use schemes

John J. Gelegenis

Journal:

Year:

2009

Language:

english

File:

PDF, 205 KB

english, 2009

13

Undergraduate studies in energy education – A comparative study of Greek and British courses

Gelegenis, J.J., Harris, D.J.

Journal:

Renewable Energy

Year:

2014

Language:

english

File:

PDF, 170 KB

english, 2014

14

Perspectives of energy efficient technologies penetration in the Greek domestic sector, through the analysis of Energy Performance Certificates

Gelegenis, J., Diakoulaki, D., Lampropoulou, H., Giannakidis, G., Samarakou, M., Plytas, N.

Journal:

Year:

2014

Language:

english

File:

PDF, 1.67 MB

english, 2014

15

Residential cogeneration of heat and power: a promising way to sustainability, a challenging field for tutors

Gelegenis, John, Axaopoulos, Petros

Journal:

International Journal of Higher Education and Sustainability

Year:

2015

Language:

english

File:

PDF, 432 KB

english, 2015

16

Optimum Sizing of Residential Cogeneration for Prefeasibility Estimations. An Analytical Approach

Gelegenis, John, Mavrotas, George

Journal:

Energy Procedia

Year:

2015

Language:

english

File:

PDF, 524 KB

english, 2015

17

An analytical study of critical factors in residential cogeneration optimization

Gelegenis, John, Mavrotas, George

Journal:

Year:

2016

Language:

english

File:

PDF, 759 KB

english, 2016

18

Determination of fixed expenses in central heating costs allocation

Gelegenis, John Joachim, Harris, Douglas, Diakoulaki, Danae, Lampropoulou, Helen, Giannakidis, George

Journal:

Management of Environmental Quality An International Journal

Year:

2015

Language:

english

File:

PDF, 492 KB

english, 2015

19

Technical and economic assessment of geothermal soil heating systems in row covered protected crops: A case study from Greece

Dalampakis, Paschalis, Gelegenis, John, Ilias, Andreas, Ladas, Angelos, Kolios, Petros

Journal:

Year:

2017

Language:

english

File:

PDF, 5.83 MB

english, 2017

20

Optimum external wall insulation thickness considering the annual CO 2 emissions

Axaopoulos, Ioannis, Axaopoulos, Petros, Gelegenis, John, Fylladitakis, Emmanouil D

Journal:

Journal of Building Physics

Year:

2018

Language:

english

File:

PDF, 1.89 MB

english, 2018

21

A Multi-Parametric Mathematical Approach on the Selection of Optimum Insulation Thicknesses in Buildings

Gelegenis, John, Axaopoulos, Petros

Journal:

Year:

2017

Language:

english

File:

PDF, 6.28 MB

english, 2017