Search Results - "Kosmadakis, George"

Industrial waste heat: Estimation of the technically available resource in the EU per industrial sector, temperature level and country by Papapetrou, Michael, Kosmadakis, George, Cipollina, Andrea, La Commare, Umberto, Micale, Giorgio

“…•New methodology for estimation of recoverable waste heat potential.•Differences between countries and energy efficiency developments considered.•Estimation of…”
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Experimental comparative assessment of butanol or ethanol diesel-fuel extenders impact on combustion features, cyclic irregularity, and regulated emissions balance in heavy-duty diesel engine by Rakopoulos, Constantine D., Rakopoulos, Dimitrios C., Kosmadakis, George M., Papagiannakis, Roussos G.

“…This work studies the impact of using n-butanol or ethanol in blends with diesel fuel (extenders) on combustion, cyclic irregularity, and exhaust emissions…”
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Investigating the EGR rate and temperature impact on diesel engine combustion and emissions under various injection timings and loads by comprehensive two-zone modeling by Rakopoulos, Constantine D., Rakopoulos, Dimitrios C., Mavropoulos, George C., Kosmadakis, George M.

“…The impact of exhaust gas recirculation (EGR) on combustion and emissions in direct injection (DI) diesel engine is examined in a predominately computational…”
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Exergy assessment of combustion and EGR and load effects in DI diesel engine using comprehensive two-zone modeling by Rakopoulos, Dimitrios C., Rakopoulos, Constantine D., Kosmadakis, George M., Giakoumis, Evangelos G.

“…A model extended to include exergy terms is presented in this investigation, providing more useful results. It complements the energy analysis, based on…”
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Evidence for Anti-Inflammatory Effects of Exercise in CKD by VIANA, João L, KOSMADAKIS, George C, WATSON, Emma L, BEVINGTON, Alan, FEEHALLY, John, BISHOP, Nicolette C, SMITH, Alice C

“…CKD is associated with a complex state of immune dysfunction characterized by immune depression, predisposing patients to infections, and immune activation,…”
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Modeling of an Integrated Renewable-Energy-Based System for Heating, Cooling, and Electricity for Buildings by Pilou, Marika, Kosmadakis, George, Meramveliotakis, George

“…An integrated numerical model that describes the operation of a renewable-energy-based system for a building’s heating, cooling, and domestic hot water needs…”
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Constipation in Peritoneal Dialysis Patients by Kosmadakis, George, Albaret, Julie, Da Costa Correia, Enrique, Somda, Frederic, Aguilera, Didier

“…Constipation in peritoneal dialysis (PD) is an infrequent but potentially serious condition affecting the mechanical properties of dialysis techniques and…”
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Exergy Analysis in Highly Hydrogen-Enriched Methane Fueled Spark-Ignition Engine at Diverse Equivalence Ratios via Two-Zone Quasi-Dimensional Modeling by Rakopoulos, Dimitrios C., Rakopoulos, Constantine D., Kosmadakis, George M., Giakoumis, Evangelos G., Kyritsis, Dimitrios C.

“…In the endeavor to accomplish a fully de-carbonized globe, sparkling interest is growing towards using natural gas (NG) having as vastly major component…”
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A Fast CFD-Based Methodology for Determining the Cyclic Variability and Its Effects on Performance and Emissions of Spark-Ignition Engines by Kosmadakis, George M., Rakopoulos, Constantine D.

“…A methodology for determining the cyclic variability in spark-ignition (SI) engines has been developed recently, with the use of an in-house computational…”
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Effect of Two Mechanisms Contributing to the Cyclic Variability of a Methane–Hydrogen-Fueled Spark-Ignition Engine by Using a Fast CFD Methodology by Kosmadakis, George M., Rakopoulos, Dimitrios C., Rakopoulos, Constantine D.

“…AbstractThe effect of two mechanisms that contribute to the cyclic variability of a spark-ignition (SI) engine fueled with lean methane–hydrogen blends was…”
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Numerical and Experimental Study by Quasi-Dimensional Modeling of Combustion and Emissions in Variable Compression Ratio High-Speed Spark-Ignition Engine by Rakopoulos, Dimitrios C, Rakopoulos, Constantine D, Giakoumis, Evangelos G, Kosmadakis, George M

“…AbstractThis work presents the development and use of a comprehensive, quasi-dimensional, two-zone combustion model aiming at predicting the combustion…”
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Comparative Evaluation of Ethanol, n-Butanol, and Diethyl Ether Effects as Biofuel Supplements on Combustion Characteristics, Cyclic Variations, and Emissions Balance in Light-Duty Diesel Engine by Rakopoulos, Dimitrios C, Rakopoulos, Constantine D, Giakoumis, Evangelos G, Komninos, Neofytos P, Kosmadakis, George M, Papagiannakis, Roussos G

“…AbstractThis work evaluates experimentally on a comparative basis the effects of using three customary biofuels on the cyclic variability (irregularity) of…”
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Evaluation of the Economic and Environmental Performance of Low-Temperature Heat to Power Conversion using a Reverse Electrodialysis – Multi-Effect Distillation System by Papapetrou, Michael, Kosmadakis, George, Giacalone, Francesco, Ortega-Delgado, Bartolomé, Cipollina, Andrea, Tamburini, Alessandro, Micale, Giorgio

“…In the examined heat engine, reverse electrodialysis (RED) is used to generate electricity from the salinity difference between two artificial solutions. The…”
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Review of Experimental Research on Supercritical and Transcritical Thermodynamic Cycles Designed for Heat Recovery Application by Lecompte, Steven, Ntavou, Erika, Tchanche, Bertrand, Kosmadakis, George, Pillai, Aditya, Manolakos, Dimitris, De Paepe, Michel

“…Supercritical operation is considered a main technique to achieve higher cycle efficiency in various thermodynamic systems. The present paper is a review of…”
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Towards a 100% renewable energy share for heating and cooling in office buildings with solar and geothermal energy by Pilou, Marika, Kosmadakis, George, Meramveliotakis, George, Krikas, Achileas

“…An integrated energy system for office buildings is examined, with the use of a numerical tool that has been developed for simulating renewable energy-based…”
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Gastrointestinal Disorders in Peritoneal Dialysis Patients by Kosmadakis, George, Albaret, Julie, da Costa Correia, Enrique, Somda, Frederic, Aguilera, Didier

“…Gastrointestinal (GI) disorders in peritoneal dialysis (PD) patients are relatively understudied in the literature, even though they have a serious impact in…”
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Estimating the potential of industrial (high-temperature) heat pumps for exploiting waste heat in EU industries by Kosmadakis, George

“…•Assessment of heat consumption and waste heat potential in EU industries.•Matching of heat consumption and upgraded heat of industrial heat pumps.•Heat…”
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Identifying the performance and losses of a scroll compressor with vapour injection and R1234ze(E) by Meramveliotakis, George, Kosmadakis, George, Karellas, Sotirios

“…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…”
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Methods based on a semi-empirical model for simulating scroll compressors with HFC and HFO refrigerants by Meramveliotakis, George, Kosmadakis, George, Karellas, Sotirios

“…The aim of this work is to evaluate three methodologies regarding semi-empirical scroll compressor modeling for different refrigerants and conduct a…”
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Performance Evaluation of a Helical Coil Heat Exchanger Working under Supercritical Conditions in a Solar Organic Rankine Cycle Installation by Lazova, Marija, Huisseune, Henk, Kaya, Alihan, Lecompte, Steven, Kosmadakis, George, De Paepe, Michel

“…Worldwide interest in low grade heat valorization using organic Rankine cycle (ORC) technologies has increased significantly. A new small-scale ORC with a net…”
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