TY - JOUR A1 - Pfeiffelmann, Björn A1 - Benim, Ali Cemal A1 - Joos, Franz T1 - Water-Cooled Thermoelectric Generators for Improved Net Output Power: A Review JF - Energies N2 - Thermoelectric generators (TEGs) have the ability to convert waste heat into electrical energy under unfavorable conditions and are becoming increasingly popular in academia, but have not yet achieved a broad commercial success, due to the still comparably low efficiency. To increase the efficiency and economic viability of TEGs, research is performed on the materials on one hand and on the system connection on the other. In the latter case, the net output power of the cooling system plays a key role. At first glance, passive cooling seems preferable to active cooling because it does not affect the net electrical output power. However, as shown in the present review, the active cooling is to be preferred for net output power. The situation is similar in air and water-cooling. Even though air-cooling is easier to set up, the water-cooling should be preferred to achieve higher net output power. It is shown that microchannel cooling has similar hydraulic performance to conventional cooling and inserts increase the net output power of TEG. As the review reveals that active water-cooling should be the method of choice to achieve high net output power, it also shows that a careful optimization is necessary to exploit the potential. KW - Energy Engineering and Power Technology KW - Renewable Energy, Sustainability and the Environment KW - Electrical and Electronic Engineering KW - Control and Optimization KW - DOAJ Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-37323 SN - 1996-1073 VL - 14 IS - 24 PB - MDPI ER - TY - JOUR A1 - Pfeiffelmann, Björn A1 - Özman, Cansu A1 - Benim, Ali Cemal A1 - Joos, Franz T1 - Variable temperature effects on TEG performance JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27893 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Gül, Fethi A1 - Assmann, Alexander A1 - Akhyari, Payam A1 - Lichtenberg, Artur A1 - Joos, Franz T1 - Validation of loss-coefficient-based outlet boundary conditions for simulating aortic flow JF - Journal of Mechanics in Medicine and Biology Y1 - 2016 U6 - https://doi.org/10.1142/s0219519416500111 VL - 16 IS - 2 PB - World Scientific ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Pfeiffelmann, Björn T1 - Validation of Combustion Models for Lifted Hydrogen Flame JF - E3S Web of Conferences Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27815 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Saeedrashed, Younis Saida A1 - Benim, Ali Cemal T1 - Validation Methods of Geometric 3D-CityGML Data for Urban Wind Simulations JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27906 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Nahavandi, A. A1 - Syed, Khawar J. T1 - URANS and LES analysis of turbulent swirling flows JF - Progress in Computational Fluid Dynamics, An International Journal Y1 - 2005 U6 - https://doi.org/10.1504/pcfd.2005.007680 VL - 5 IS - 8 PB - inderscience ER - TY - JOUR A1 - Chattopadhyay, Himadri A1 - Benim, Ali Cemal T1 - Turbulent Heat Transfer Over a Moving Surface Due to Impinging Slot Jets JF - Journal of Heat Transfer Y1 - 2011 U6 - https://doi.org/10.1115/1.4004075 VL - 133 IS - 10 PB - ASME ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Gobinda Das, Sampad A1 - Chattopadhyay, Himadri A1 - Benim, Ali Cemal A1 - Moghimi, M. A. T1 - Transport Phenomenon of Simultaneously Developing Flow and Heat Transfer in Twisted Sinusoidal Wavy Microchannel under Pulsating Inlet Flow Condition JF - E3S Web of Conferences Y1 - 2019 U6 - https://doi.org/10.1051/e3sconf/201912801011 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Das, Sampad Gobinda A1 - Bhattacharyya, Suvanjan A1 - Chattopadhyay, Himadri A1 - Benim, Ali Cemal T1 - Transport Phenomenon of Simultaneously Developing Flow and Heat Transfer in Twisted Sinusoidal Wavy Microchannel under Pulsating Inlet Flow Condition JF - Heat Transfer Engineering Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27697 SP - 1 EP - 14 PB - Taylor & Francis ER - TY - JOUR A1 - Vishwakarma, Devendra Kumar A1 - Bhattacharyya, Suvanjan A1 - Soni, Manoj Kumar A1 - Benim, Ali Cemal T1 - Transitional Mixed Convection in Inclined Solar Air Heater Tube with Wavy Inserts JF - Heat Transfer Engineering KW - Numerische Strömungssimulation KW - Sonnenenergie KW - Konvektion Y1 - 2025 U6 - https://doi.org/10.1080/01457632.2025.2480906 SN - 0145-7632 PB - Informa ER - TY - CHAP A1 - Vishwakarma, Devendra Kumar A1 - Bhattacharyya, Suvanjan A1 - Soni, Manoj Kumar A1 - Ghosh, Soumya A1 - Benim, Ali Cemal ED - Benim, Ali Cemal ED - Bennacer, Rachid ED - Mohamad, Abdulmajeed A. ED - Ocłoń, Paweł ED - Suh, Sang-Ho ED - Taler, Jan T1 - Transition Flow Heat Transfer and Pressure Drop in a Uniformly Heated Inclined Solar Air Heater Fitted with Wavy Tapes T2 - Advances in Computational Heat and Mass Transfer: Proceedings of the 14th International Conference on Computational Heat and Mass Transfer (ICCHMT 2023), 4-8 September, 2023, Düsseldorf, Germany KW - Numerische Strömungssimulation KW - Druckabfall KW - Wärmeübertragung Y1 - 2024 SN - 9783031672408 U6 - https://doi.org/10.1007/978-3-031-67241-5_63 SN - 2195-4356 VL - 1 SP - 703 EP - 712 PB - Springer Nature CY - Cham ER - TY - CHAP A1 - Biswas, Nirmalendu A1 - Mandal, Dipak Kumar A1 - Manna, Nirmal K. A1 - Benim, Ali Cemal T1 - Thermomagnetic Convection in a Hybrid Nanofluid-Filled Wavy-Walled Porous System with Protruded Bottom Heating T2 - Advances in Computational Heat and Mass Transfer: Proceedings of the 14th International Conference on Computational Heat and Mass Transfer (ICCHMT 2023), 4-8 September, 2023, Düsseldorf, Germany KW - Numerische Strömungssimulation KW - Thermomagnetischer Effekt KW - Magnetische Flüssigkeit KW - Finite-Elemente-Methode Y1 - 2024 SN - 9783031666087 U6 - https://doi.org/10.1007/978-3-031-66609-4_35 SN - 2195-4356 VL - 2 SP - 375 EP - 385 PB - Springer Nature CY - Cham ER - TY - JOUR A1 - Biswas, Nirmalendu A1 - Mandal, Dipak Kumar A1 - Manna, Nirmal K. A1 - Benim, Ali Cemal T1 - Thermomagnetic convection and entropy generation in a hybrid nanofluid filled wavy-walled cavity heated non-uniformly JF - Archives of Thermodynamics N2 - In this work, thermomagnetic convection and irreversibility production in a hybrid nanofluid-filled wavy-walled porous thermal system containing a semi-circular heated bottom is presented. Both the sidewalls of the enclosure are cooled and undulated with varying undulation numbers. The lower wall is partially undulated following a semi-circular-shaped object and is heated isothermally. The horizontal walls are insulated. The cavity is occupied with Cu-Al2O3/water-based hybrid nanofluid and porous substances under the impact of the evenly applied horizontal magnetic field. This work significantly contributes to the existing research rendering an exhaustive understanding of the hydrothermal flow-physics as well as irreversibility production of a hybrid nanofluid in the cavity having surface undulation. The Galerkin weighted finite element method is utilized to solve the mathematical model. The hydrothermal performance of the thermal system is considerably influenced by various pertinent factors such as Darcy-Rayleigh number, Darcy number, Hartmann number, and number of undulations. The wall undulations have a critical role in altering the hydrothermal performance. Heatlines are used to analyse heat transport dynamics from the protruded hot surface to the heat sink. The protruded heater wall induces the formation of a hot upward plume in the nearest fluid layers. The flow divides into two parts forming a pair of circulations due to symmetrical cooling at the sidewalls. The flow behaviours are significantly dampened by increasing the Hartmann number. The associated total entropy generation is also demonstrated. This study contributes to the existing domain knowledge and provides insights for designing and optimizing similar thermal systems. KW - Wärmeübertragung KW - Numerische Strömungssimulation KW - Finite-Elemente-Methode KW - Nanofluidik Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-52344 SN - 1231-0956 SP - 61 EP - 81 PB - Polish Academy of Sciences ER - TY - JOUR A1 - Bhattacharyya, Suvanjan A1 - Benim, Ali Cemal A1 - Pathak, Manabendra A1 - Chamoli, Sunil A1 - Gupta, Ashutosh T1 - Thermohydraulic characteristics of inline and staggered angular cut baffle inserts in the turbulent flow regime JF - Journal of Thermal Analysis and Calorimetry Y1 - 2020 U6 - https://doi.org/10.1007/s10973-019-09094-8 SN - 1388-6150 VL - 140 IS - 3 SP - 1519 EP - 1536 PB - Springer Nature ER - TY - JOUR A1 - Suh, S.-H. A1 - Benim, Ali Cemal T1 - The primitive variables formulation of the Navier-Stokes equations using the finite analytic method JF - Applied Mathematical Modelling KW - Navier-Stokes-Gleichung KW - Finite analytische Methode KW - Numerische Strömungssimulation Y1 - 1989 U6 - https://doi.org/10.1016/0307-904X(89)90066-8 SN - 0307-904X VL - 13 IS - 9 SP - 550 EP - 554 PB - Elsevier ER - TY - JOUR A1 - Farooq, Asma A1 - Ali, Ramzan A1 - Benim, Ali Cemal T1 - Soret and Dufour effects on three dimensional Oldroyd-B fluid JF - Physica A: Statistical Mechanics and its Applications Y1 - 2018 U6 - https://doi.org/10.1016/j.physa.2018.02.204 SN - 0378-4371 VL - 503 SP - 345 EP - 354 PB - Elsevier ER - TY - JOUR A1 - Mandal, Dipak Kumar A1 - Bose, Sharmistha A1 - Biswas, Nirmalendu A1 - Manna, Nirmal K. A1 - Cuce, Erdem A1 - Benim, Ali Cemal T1 - Solar Chimney Power Plants for Sustainable Air Quality Management Integrating Photocatalysis and Particulate Filtration: A Comprehensive Review JF - Sustainability N2 - Urban air pollution has become a pressing challenge in recent times, demanding innovative solutions. This review delves into the potential of Solar Chimney Power Plants (SCPPs) as a sustainable approach to mitigating air pollution. The idea of mitigation of pollution may be an added advantage to the use of SCPPs in practice. Recent advancements, such as the integration of photocatalytic reactors (PCRs) for the elimination of greenhouse gases (GHGs), emphasizing the importance of addressing non-CO2 GHGs like CH4 and N2O are analyzed. The novelty of this review is that it not only focuses on the shifting and removal of particulate matter but also on the removal of greenhouse gases. Numerous case studies, ranging from filter-equipped SCPPs to Solar-Assisted Large-Scale Cleaning Systems (SALSCSs), are reviewed, providing a comprehensive understanding of their design, performance, and potential benefits. This review serves as a guide for researchers and policymakers, emphasizing the need for multifaceted approaches to address the intricate nexus of air pollution, renewable energy generation, and climate change mitigation. KW - solar chimney KW - air pollution KW - greenhouse gases KW - particulate matter KW - photocatalysis KW - Luftverschmutzung KW - Photokatalyst KW - Treibhausgas KW - Feinstaub KW - Aufwindkraftwerk Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-45814 SN - 2071-1050 VL - 16 IS - 6 PB - MDPI ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Stegelitz, P. A1 - Epple, Bernd T1 - Simulation of the two-phase flow in a laboratory coal pulveriser JF - Forschung im Ingenieurwesen KW - Numerische Strömungssimulation KW - Verbrennung KW - Zweiphasenströmung KW - Kohle Y1 - 2005 U6 - https://doi.org/10.1007/s10010-005-0002-4 SN - 0015-7899 VL - 69 IS - 4 SP - 197 EP - 204 PB - Springer Nature ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Diederich, Michael T1 - Prediction of Roughness Effects on Wind Turbine Aerodynamics JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27775 SN - 2267-1242 VL - 128 PB - edp sciences ER - TY - JOUR A1 - Benim, Ali Cemal A1 - Pfeiffelmann, Björn T1 - Prediction of hydrogen flame propagation in a channel with exit contraction JF - E3S Web of Conferences KW - DOAJ Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:hbz:due62-opus-27806 SN - 2267-1242 VL - 128 IS - 01013 PB - edp sciences ER -