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Christos Tzivanidis

National Technical University of Athens

SCHOLARLY PAPERS

6

DOWNLOADS

344

TOTAL CITATIONS

1

Scholarly Papers (6)

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1.

Data-Driven Energy Efficiency Comparison between Operating R744 and R448a Supermarket Refrigeration Systems Based on Hybrid Experimental-Simulation Analysis

Downloads 94 (720,278)

Data-Driven Energy Efficiency Comparison between Operating R744 and R448a Supermarket Refrigeration Systems Based on Hybrid Experimental-Simulation Analysis

Number of pages: 41 Posted: 05 Mar 2024
Dimitrios Tsimpoukis, Evangelos Syngounas, Evangelos Bellos, Maria Koukou, Christos Tzivanidis, Stavros Anagnostatos and Michail Gr. Vrachopoulos
National and Kapodistrian University of Athens, National and Kapodistrian University of Athens, National Technical University of Athens, National and Kapodistrian University of Athens, National Technical University of Athens, National Technical University of Athens and National and Kapodistrian University of Athens
Downloads 55 (1,027,773)

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CO2, R744, Freon, Refrigeration, experimental, Energy analysis

Data-Driven Energy Efficiency Comparison between Operating R744 and R448a Supermarket Refrigeration Systems Based on Hybrid Experimental-Simulation Analysis

Number of pages: 43 Posted: 01 May 2024
Dimitrios Tsimpoukis, Evangelos Syngounas, Evangelos Bellos, Maria Koukou, Christos Tzivanidis, Stavros Anagnostatos and Michail Gr. Vrachopoulos
National and Kapodistrian University of Athens, National and Kapodistrian University of Athens, National Technical University of Athens, National and Kapodistrian University of Athens, National Technical University of Athens, National Technical University of Athens and National and Kapodistrian University of Athens
Downloads 39 (1,224,220)

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CO2, R744, Freon, Refrigeration, Experimental, Energy Analysis

2.

A Novel Asymmetric Compound Parabolic Collector Under Experimental and Numerical Investigation

Number of pages: 22 Posted: 15 Apr 2022
Dimitrios Nikolaos Korres and Christos Tzivanidis
affiliation not provided to SSRN and National Technical University of Athens
Downloads 66 (907,769)

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Novel CPC, numerical, experimental, Validation, flow simulation, asymmetrical reflector

3.

An Innovative Small-Sized Double Cavity Ptc Under Investigation and Comparison with a Conventional Ptc

Number of pages: 24 Posted: 14 May 2022
Dimitrios Nikolaos Korres and Christos Tzivanidis
affiliation not provided to SSRN and National Technical University of Athens
Downloads 64 (933,592)
Citation 1

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Parabolic trough collector, cavity receiver, optimization, thermal enhancement, optical enhancement

4.

A Flat Plate Collector with a Cavity Receiver as an Alternative: A Comparative Study

Number of pages: 18 Posted: 09 May 2022
Dimitrios Nikolaos Korres and Christos Tzivanidis
affiliation not provided to SSRN and National Technical University of Athens
Downloads 57 (989,921)

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FPC, cavity receiver, corrugated absorber, Enhancement, innovative

5.

Optimal Design of an Industrial Polygeneration Unit with Thermal Storage Driven by Waste Heat and Solar Thermal Collectors

Number of pages: 43 Posted: 30 Apr 2025
Panagiotis Lykas, Alexandros Tsimpoukis, Evangelos Bellos, Nikolaos Tsagkalidis, Nikolaos Nikolopoulos and Christos Tzivanidis
affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Centre for Research and Technology Hellas (CERTH) and National Technical University of Athens
Downloads 36 (1,263,436)

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Waste heat management, polygeneration, ORC, absorption chiller, thermal energy storage, industry

6.

Parametric Study on the Parameters Affecting the Performance of a Floating Solar Platform: Numerical Approach with Experimental Validation

Number of pages: 1 Posted: 14 Aug 2025
Konstantinos Polychronakis, Dimitrios N. Korres and Christos Tzivanidis
National Technical University of Athens, National Technical University of Athens and National Technical University of Athens
Downloads 27 (1,372,601)

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Floating solar PV, Computational Fluid Dynamics, Thermal modeling, Energy production