Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Christos Tzivanidis"'
Autor:
Evangelos Bellos, Panagiotis Lykas, Christos Sammoutos, Angeliki Kitsopoulou, Dimitrios Korres, Christos Tzivanidis
Publikováno v:
Energy Nexus, Vol 11, Iss , Pp 100229- (2023)
The partial evaporation organic Rankine cycle (PE-ORC) is an emerging technology for the efficient exploitation of low-temperature heat sources. The purpose of the present study is the energy and thermodynamic analysis of a solar-fed PE-ORC with a so
Externí odkaz:
https://doaj.org/article/d5fb49c7bc764272ab4bcc130719a7f9
Publikováno v:
Energies, Vol 17, Iss 3, p 576 (2024)
This study examined the performance of a concentrating solar collector with an asymmetric reflector. Two receivers were investigated, differing in the presence of photovoltaic cells. The first one was equipped with cells on both sides while the other
Externí odkaz:
https://doaj.org/article/4b18595a160746cf8b39a1b2a5963050
Autor:
Dimitrios Tsimpoukis, Evangelos Syngounas, Evangelos Bellos, Maria Koukou, Christos Tzivanidis, Stavros Anagnostatos, Michail Gr. Vrachopoulos
Publikováno v:
Energy Conversion and Management: X, Vol 18, Iss , Pp 100351- (2023)
Aiming to reduce the use of conventional energy sources, alternative methods should be applied in order to cover society’s needs. In this context, in the present study, the operation of a transcritical CO2 commercial refrigeration unit is investiga
Externí odkaz:
https://doaj.org/article/b294b9e7d0ba4957990dacd7a76b887c
Autor:
Angeliki Kitsopoulou, Evangelos Bellos, Panagiotis Lykas, Christos Sammoutos, Michail Gr. Vrachopoulos, Christos Tzivanidis
Publikováno v:
Energies, Vol 16, Iss 22, p 7521 (2023)
Energy retrofit solutions that concern a building’s roof structure play a significant role in the enhancement of a building’s thermal behaviour. This study investigates the integration of phase change materials (PCMs) with cool coatings (CCs) or
Externí odkaz:
https://doaj.org/article/c733f96101114b70b1a6dc355e830dc6
Publikováno v:
Applied Sciences, Vol 13, Iss 19, p 10669 (2023)
The specific work presents an optical and thermal investigation of a hybrid thermo-photovoltaic solar collector with an asymmetrical compound parabolic mirror. Such collectors offer an innovative and sustainable approach to address both the thermal a
Externí odkaz:
https://doaj.org/article/b1987430d2de4c3d80ee168648a0ecd8
Autor:
Christos Sammoutos, Angeliki Kitsopoulou, Panagiotis Lykas, Evangelos Bellos, Christos Tzivanidis
Publikováno v:
Applied System Innovation, Vol 6, Iss 4, p 71 (2023)
The exploitation of solar irradiation is a critical weapon for facing the energy crisis and critical environmental problems. One of the most emerging solar technologies is the use of solar towers (or central receiver systems) coupled with high-perfor
Externí odkaz:
https://doaj.org/article/0b89c479d3924bb1b5ea5b24accd3550
Autor:
Evangelos Bellos, Christos Tzivanidis
Publikováno v:
Energy and Built Environment, Vol 2, Iss 3, Pp 278-289 (2021)
The objective of this paper is the parametric analysis of a solar-fed trigeneration system ideal for the building sector that produces useful heat, electricity and cooling. The examined unit is driven by 100 m2 of parabolic trough collectors which ar
Externí odkaz:
https://doaj.org/article/511bef0b3ec84baa9c7d0d19e0bca8ca
Publikováno v:
Applied System Innovation, Vol 6, Iss 2, p 43 (2023)
The exploitation of renewable energy sources in the building sector is a challenging aspect of achieving sustainability. The incorporation of a proper storage unit is a vital issue for managing properly renewable electricity production and so to avoi
Externí odkaz:
https://doaj.org/article/6c536cd2b8d4440d9702b6c9cce0f035
Autor:
Evangelos Bellos, Panagiotis Lykas, Dimitrios Tsimpoukis, Dimitrios N. Korres, Angeliki Kitsopoulou, Michail Gr. Vrachopoulos, Christos Tzivanidis
Publikováno v:
Applied Sciences, Vol 13, Iss 6, p 4066 (2023)
The goal of this investigation is the thorough analysis and optimization of a solar-assisted heat pump heating unit for covering the space heating demand for a building in Athens, Greece. The novelty of the studied system is the use of a high-tempera
Externí odkaz:
https://doaj.org/article/f0de2d277eee473a8f36de1b9e326d3a
Autor:
Evangelos Bellos, Dimitrios Tsimpoukis, Panagiotis Lykas, Angeliki Kitsopoulou, Dimitrios N. Korres, Michail Gr. Vrachopoulos, Christos Tzivanidis
Publikováno v:
Applied Sciences, Vol 13, Iss 4, p 2072 (2023)
High-temperature heat pumps consist of a promising choice for substituting conventional boilers and producing hot water with temperature levels in the range of 70–80 °C. The use of high-temperature heat pumps makes it possible to exploit the exist
Externí odkaz:
https://doaj.org/article/15e6385b9d3446c2af6993fda83b1a1d