Zobrazeno 1 - 10
of 165
pro vyhledávání: '"Sotirios Karellas"'
Publikováno v:
Eng, Vol 5, Iss 3, Pp 1337-1359 (2024)
Carbon capture and utilization (CCU) has emerged in recent years as a promising decarbonization solution for hard-to-abate industries. Compared to carbon capture and storage (CCS), CCU aims not for the storage of carbon dioxide (CO2) but for its use
Externí odkaz:
https://doaj.org/article/e6751af922764821ae94539b22c90e05
Autor:
Zahra Mahdi, Johannes Christoph Sattler, Spiros Alexopoulos, Konstantinos Braimakis, Cristiano Teixeira Boura, Ulf Herrmann, Sotirios Karellas
Publikováno v:
SolarPACES Conference Proceedings, Vol 2 (2024)
In the present study, an on-demand solar combined cooling, heating, and power (CCHP) system with parabolic trough collector (PTC) and solid-state thermal energy storage (TES) is investigated, which will be demonstrated on-site in 2024 at the Administ
Externí odkaz:
https://doaj.org/article/97b142002f524812822e89a2ea7863df
Autor:
Dimitrios-Sotirios Kourkoumpas, Angeliki Sagani, Anastasios Vallianatos, Spyros Kiartzis, Sotirios Karellas, Vassilis Dedoussis, Panagiotis Grammelis
Publikováno v:
Green Technologies and Sustainability, Vol 2, Iss 2, Pp 100076- (2024)
The purpose of this paper is to perform a comprehensive Life Cycle Assessment to evaluate the environmental performance, in terms of GHG emissions, of co-processing Used Cooking Oil (UCO) with fossil light gas oil into a current diesel hydrotreater u
Externí odkaz:
https://doaj.org/article/06126c8368a94623acfb1f5901a96e26
Autor:
Tryfon C. Roumpedakis, Aris-Dimitrios Leontaritis, Prokopios Vlachogiannis, Efstratios Varvagiannis, Antonios Charalampidis, Sotirios Karellas
Publikováno v:
Thermo, Vol 3, Iss 4, Pp 657-681 (2023)
This study regards the evaluation of the performance of a thermally stratified tank as an intermediate combi-storage tank for a solar-driven residential thermal system coupled to a seasonal energy storage system. In such applications, the efficient o
Externí odkaz:
https://doaj.org/article/3bb11e8d3d504a2eb1b09798ad7b10a5
Autor:
Dimitrios Tziritas, Konstantinos Braimakis, Dimitris Bakirtzis, George M. Stavrakakis, Sofia Yfanti, Konstantinos Terzis, Panagiotis Langouranis, Panagiotis L. Zervas, Sotirios Karellas
Publikováno v:
Energies, Vol 17, Iss 12, p 2819 (2024)
To pave the way towards buildings’ decarbonization in the context of the European Union’s (EU) policy, the methodology of cost-optimality assessment based on regulation 244/2012/EU is a useful tool to explore and foster the application of energy
Externí odkaz:
https://doaj.org/article/0d39b33d921f44caaa5068576e0e5398
Publikováno v:
Energies, Vol 16, Iss 23, p 7705 (2023)
Reducing emissions from fluorinated gases (F-gases) is considered one of the key conditions for the European Union (EU) to be able to meet the requirements of the European Green Deal, primary objectives of which are the reduction in greenhouse gas em
Externí odkaz:
https://doaj.org/article/dc99e10e897c46a9b8f5ed940e8a4bbd
Publikováno v:
Open Research Europe, Vol 2 (2022)
This work investigates a vapour injection scroll compressor integrated in a heat pump using the refrigerant R1234ze(E). The water-to-water heat pump was tested under a wide temperature range at the evaporator and condenser sides. The test results rev
Externí odkaz:
https://doaj.org/article/702bc57f247d443e9af48736af4ebce0
Autor:
Tryfon C. Roumpedakis, Nikolaos Fostieris, Konstantinos Braimakis, Evropi Monokrousou, Antonios Charalampidis, Sotirios Karellas
Publikováno v:
Thermo, Vol 1, Iss 1, Pp 77-105 (2021)
The present work focuses on the techno-economic assessment and multi-objective genetic algorithm optimization of small-scale (40 kWth input), solar Organic Rankine Cycle (ORC) systems driven by medium-to-high temperature (up to 210 °C) parabolic dis
Externí odkaz:
https://doaj.org/article/4112f6f3a1df47ff96b4ecfed22fe059
Publikováno v:
Open Research Europe, Vol 1 (2022)
The aim of this work is to evaluate three methodologies regarding semi-empirical scroll compressor modeling for different refrigerants and conduct a comparative analysis of their results and accuracy. The first step is to improve a semi-empirical mod
Externí odkaz:
https://doaj.org/article/0ed5f677298f43999ee622912bd907a7
Publikováno v:
Open Research Europe, Vol 1 (2022)
The aim of this work is to evaluate three methodologies regarding semi-empirical scroll compressor modeling for different refrigerants and conduct a comparative analysis of their results and accuracy. The first step is to improve a semi-empirical mod
Externí odkaz:
https://doaj.org/article/b239647510774d29bb0b972c17e1b9ed