TY  - JOUR
AU  - Stijepović, Mirko Z.
AU  - Papadopoulos, Athanasios I.
AU  - Linke, Patrick
AU  - Grujić, Aleksandar
AU  - Seferlis, Panos
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1563
AB  - This work adopts the (ECCs) under bar (exergy composite curves) approach to explore the potential for ORC (organic Rankine cycle) process improvements. The method is used to explore different ORC configurations supported by a mathematical model representing a generic multi-pressure ORC cascade and developed based on the principles of the ECCs method. The model facilitates interconnectivity at different temperature and pressure levels, also considering two types of turbines, namely an expansion and an induction turbine. It is employed to investigate the performance of two major ORC configurations, namely one considering independent pressure loops with an expansion turbine and the other considering pressure loops contacted through induction turbines. These configurations are updated with new features within an iterative procedure supporting the systematic identification of the optimum number of pressure loops together with several operating optimization parameters. The optimization is performed using an inclusive objective function, while the obtained results indicate ORC systems of high performance.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Energy
T1  - An exergy composite curves approach for the design of optimum multi-pressure organic Rankine cycle processes
VL  - 69
SP  - 285
EP  - 298
DO  - 10.1016/j.energy.2014.03.006
ER  - 

@article{
author = "Stijepović, Mirko Z. and Papadopoulos, Athanasios I. and Linke, Patrick and Grujić, Aleksandar and Seferlis, Panos",
year = "2014",
abstract = "This work adopts the (ECCs) under bar (exergy composite curves) approach to explore the potential for ORC (organic Rankine cycle) process improvements. The method is used to explore different ORC configurations supported by a mathematical model representing a generic multi-pressure ORC cascade and developed based on the principles of the ECCs method. The model facilitates interconnectivity at different temperature and pressure levels, also considering two types of turbines, namely an expansion and an induction turbine. It is employed to investigate the performance of two major ORC configurations, namely one considering independent pressure loops with an expansion turbine and the other considering pressure loops contacted through induction turbines. These configurations are updated with new features within an iterative procedure supporting the systematic identification of the optimum number of pressure loops together with several operating optimization parameters. The optimization is performed using an inclusive objective function, while the obtained results indicate ORC systems of high performance.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Energy",
title = "An exergy composite curves approach for the design of optimum multi-pressure organic Rankine cycle processes",
volume = "69",
pages = "285-298",
doi = "10.1016/j.energy.2014.03.006"
}

Stijepović, M. Z., Papadopoulos, A. I., Linke, P., Grujić, A.,& Seferlis, P.. (2014). An exergy composite curves approach for the design of optimum multi-pressure organic Rankine cycle processes. in Energy
Oxford : Pergamon-Elsevier Science Ltd., 69, 285-298.
https://doi.org/10.1016/j.energy.2014.03.006

Stijepović MZ, Papadopoulos AI, Linke P, Grujić A, Seferlis P. An exergy composite curves approach for the design of optimum multi-pressure organic Rankine cycle processes. in Energy. 2014;69:285-298.
doi:10.1016/j.energy.2014.03.006 .

Stijepović, Mirko Z., Papadopoulos, Athanasios I., Linke, Patrick, Grujić, Aleksandar, Seferlis, Panos, "An exergy composite curves approach for the design of optimum multi-pressure organic Rankine cycle processes" in Energy, 69 (2014):285-298,
https://doi.org/10.1016/j.energy.2014.03.006 . .

TY  - JOUR
AU  - Stijepović, Vladimir
AU  - Linke, Patrick
AU  - Alnouri, Sabla
AU  - Kijevčanin, Mirjana
AU  - Grujić, Aleksandar
AU  - Stijepović, Mirko Z.
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/960
AB  - Environmental regulations imposed on transport fuels, especially specifications on sulfur and nitrogen content, generally boost hydrogen requirements in refining industries. The catalytic naphtha reformer (CNR) process is one of the major sources of hydrogen in naphtha refinery, thus improving its hydrogen production would be of great importance for refining industries. Close examination of the reaction kinetics of CNR processes has identified temperature, hydrogen concentration and catalyst activity as key variables affecting the process's performance. In this paper, a new reactor concept is developed that better exploits these process variables. The proposed membrane moving-bed reactor promises to significantly outperform the conventional continuous catalyst regenerative (CCR) design. A case study identifies improvements of 23.6 mol% in hydrogen production, 18.8 mol% in aromatics production. Moreover, the reformate yield was found to increase by 10.6 wt%, while the production of light gases decreases to a value of 18.6 wt%. Copyright
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - International Journal of Hydrogen Energy
T1  - Toward enhanced hydrogen production in a catalytic naphtha reforming process
VL  - 37
IS  - 16
SP  - 11772
EP  - 11784
DO  - 10.1016/j.ijhydene.2012.05.103
ER  - 

@article{
author = "Stijepović, Vladimir and Linke, Patrick and Alnouri, Sabla and Kijevčanin, Mirjana and Grujić, Aleksandar and Stijepović, Mirko Z.",
year = "2012",
abstract = "Environmental regulations imposed on transport fuels, especially specifications on sulfur and nitrogen content, generally boost hydrogen requirements in refining industries. The catalytic naphtha reformer (CNR) process is one of the major sources of hydrogen in naphtha refinery, thus improving its hydrogen production would be of great importance for refining industries. Close examination of the reaction kinetics of CNR processes has identified temperature, hydrogen concentration and catalyst activity as key variables affecting the process's performance. In this paper, a new reactor concept is developed that better exploits these process variables. The proposed membrane moving-bed reactor promises to significantly outperform the conventional continuous catalyst regenerative (CCR) design. A case study identifies improvements of 23.6 mol% in hydrogen production, 18.8 mol% in aromatics production. Moreover, the reformate yield was found to increase by 10.6 wt%, while the production of light gases decreases to a value of 18.6 wt%. Copyright",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "International Journal of Hydrogen Energy",
title = "Toward enhanced hydrogen production in a catalytic naphtha reforming process",
volume = "37",
number = "16",
pages = "11772-11784",
doi = "10.1016/j.ijhydene.2012.05.103"
}

Stijepović, V., Linke, P., Alnouri, S., Kijevčanin, M., Grujić, A.,& Stijepović, M. Z.. (2012). Toward enhanced hydrogen production in a catalytic naphtha reforming process. in International Journal of Hydrogen Energy
Oxford : Pergamon-Elsevier Science Ltd., 37(16), 11772-11784.
https://doi.org/10.1016/j.ijhydene.2012.05.103

Stijepović V, Linke P, Alnouri S, Kijevčanin M, Grujić A, Stijepović MZ. Toward enhanced hydrogen production in a catalytic naphtha reforming process. in International Journal of Hydrogen Energy. 2012;37(16):11772-11784.
doi:10.1016/j.ijhydene.2012.05.103 .

Stijepović, Vladimir, Linke, Patrick, Alnouri, Sabla, Kijevčanin, Mirjana, Grujić, Aleksandar, Stijepović, Mirko Z., "Toward enhanced hydrogen production in a catalytic naphtha reforming process" in International Journal of Hydrogen Energy, 37, no. 16 (2012):11772-11784,
https://doi.org/10.1016/j.ijhydene.2012.05.103 . .

TY  - JOUR
AU  - Stijepović, Mirko Z.
AU  - Linke, Patrick
AU  - Papadopoulos, Athanasios I.
AU  - Grujić, Aleksandar
PY  - 2012
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1035
AB  - The performance of ORC systems strongly depends on working fluid properties. We explore the relationships between working fluid properties and ORC common economic and thermodynamic performance criteria from a theoretical and an analytical point of view. The mapping of individual properties and performance criteria presented in this paper will provide a basis for the development of efficient and systematic strategies and approaches for ORC working fluid selection in future. Published by Elsevier Ltd.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Applied Thermal Engineering
T1  - On the role of working fluid properties in Organic Rankine Cycle performance
VL  - 36
SP  - 406
EP  - 413
DO  - 10.1016/j.applthermaleng.2011.10.057
ER  - 

@article{
author = "Stijepović, Mirko Z. and Linke, Patrick and Papadopoulos, Athanasios I. and Grujić, Aleksandar",
year = "2012",
abstract = "The performance of ORC systems strongly depends on working fluid properties. We explore the relationships between working fluid properties and ORC common economic and thermodynamic performance criteria from a theoretical and an analytical point of view. The mapping of individual properties and performance criteria presented in this paper will provide a basis for the development of efficient and systematic strategies and approaches for ORC working fluid selection in future. Published by Elsevier Ltd.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Applied Thermal Engineering",
title = "On the role of working fluid properties in Organic Rankine Cycle performance",
volume = "36",
pages = "406-413",
doi = "10.1016/j.applthermaleng.2011.10.057"
}

Stijepović, M. Z., Linke, P., Papadopoulos, A. I.,& Grujić, A.. (2012). On the role of working fluid properties in Organic Rankine Cycle performance. in Applied Thermal Engineering
Oxford : Pergamon-Elsevier Science Ltd., 36, 406-413.
https://doi.org/10.1016/j.applthermaleng.2011.10.057

Stijepović MZ, Linke P, Papadopoulos AI, Grujić A. On the role of working fluid properties in Organic Rankine Cycle performance. in Applied Thermal Engineering. 2012;36:406-413.
doi:10.1016/j.applthermaleng.2011.10.057 .

Stijepović, Mirko Z., Linke, Patrick, Papadopoulos, Athanasios I., Grujić, Aleksandar, "On the role of working fluid properties in Organic Rankine Cycle performance" in Applied Thermal Engineering, 36 (2012):406-413,
https://doi.org/10.1016/j.applthermaleng.2011.10.057 . .