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Mechanical and Aeronautical Engineering: Recent submissions

Now showing items 61-80 of 2901

Optimal heartbeat energy harvesting using electrostatic energy harvesters

Pourahmadi-Nakhli, Meisam; Sasanpour, Bahareh; Mahdavi, Mostafa; Sharifpur, Mohsen (Wiley, 2023-11)

Microelectromechanical system of electrostatic energy harvesters is modeled using a nonlinear state–space approach in this research. The analytical models of in-plane overlap, in-plane gap closing, and their compound ...
Chemical and thermal performance analysis of a solar thermochemical reactor for hydrogen production via two-step WS cycle

Sharma, Jeet Prakash; Kumar, Ravinder; Ahmadi, Mohammad H.; Mukhtar, Azfarizal; Md Yasir, Ahmad Shah Hizam; Sharifpur, Mohsen; Ongar, Bulbul; Yegzekova, Anara (Elsevier, 2023-11)

Ceria-based H2O/CO2-splitting solar-driven thermochemical cycle produces hydrogen or syngas. Thermal optimization of solar thermochemical reactor (STCR) improves the solar-to-fuel conversion efficiency. This research ...
Experimental study on transient and steady-state impinging jet cooling condition with TiO2-water nanofluids

Wilken, Nicolas John; Sharifpur, Mohsen; Atofarati, Emmanuel Olawaseyi; Meyer, Josua P. (Elsevier, 2024-05)

Please read abstract in the article.
Analysis of NePCM melting flow inside a trapezoidal enclosure with hot cylinders : effects of hot cylinders configuration and slope angle

Ben Khedher, Nidhal; Mehryan, S.A.M.; Shahabadi, Mohammad; Hussin, Amira M.; Saif Alghawli, Abed; Sharifpur, Mohsen (Elsevier, 2024-05)

Please read abstract in the article.
Modeling CO2 emission in residential sector of three countries in Southeast of Asia by applying intelligent techniques

Sharifpur, Mohsen; Salem, Mohamed; Buswig, Yonis M.; Fard, Habib Forootan; Rungamornrat, Jaroon (Tech Science Press, 2023)

Residential sector is one of the energy-consuming districts of countries that causes CO2 emission in large extent. In this regard, this sector must be considered in energy policy making related to the reduction of emission ...
Issues relating to licensing and liability for small modular reactors in Africa

Nicholls, D.; Maqabuka, B.G.; Connell, S.H.; Naidoo, P.; Slabber, Johan F.M. (CIGRE, 2023-12)

The internationally accepted nuclear regulation policy is for each country to undertake first principle analysis and approvals for the technical design and operating rules, benchmarking against nationally determined ...
Automated learning rates in machine learning for dynamic mini-batch sub-sampled losses

Kafka, Dominic (University of Pretoria, 2020-12)

Learning rate schedule parameters remain some of the most sensitive hyperparameters in machine learning, as well as being challenging to resolve, in particular when mini-batch subsampling is considered. Mini-batch sub-sampling ...
Modelling and multi-objective optimisation of heat transfer characteristics and pressure drop of nanofluids in microtubes

Meyer, Marcel (University of Pretoria, 2020-02)

A literature study was performed on the inner mechanisms of nanofluids and flow in microchannels. With ever changing technology, the need for smaller and more efficient devices has come about in the last couple of years. ...
The shape optimisation of compliant structures to produce a desired snap-through load-placement path

Bouwer, Johann Mynhardt (University of Pretoria, 2023)

The research problem completed in this thesis is to develop an efficient procedure to design the optimal shape of compliant mechanisms for specified load-deflection paths and snap-through behaviour. Here, computationally ...
Pulsating nanofluid-jet impingement cooling and its hydrodynamic effects on heat transfer

Atofarati, Emmanuel Olawaseyi; Sharifpur, Mohsen; Meyer, Josua P. (Elsevier, 2024-04)

Please read abstract in the article.
Two phase simulation of solar still in the presence of phase change materials in its bottom and aluminum nanoparticles in the water

Mustafa, Jawed; Alqaed, Saeed; Sharifpur, Mohsen (Elsevier, 2023-09)

Please read abstract in the article.
Hydrodynamic effects of hybrid nanofluid jet on the heat transfer augmentation

Atofarati, Emmanuel Olawaseyi; Sharifpur, Mohsen; Meyer, Josua P. (Elsevier, 2023-11)

Please read abstract in the article.
Experimental investigations of particle sizes effects on exergy and entropy characteristics of AL2O3 - MWCNT hybrid nanofluid along the transitional flow regime

Umar Ibrahim, Ibrahim; Sharifpur, Mohsen; Meyer, Josua P. (Elsevier, 2023-11)

Please read abstract in the article.
Effect of phase change materials on lithium-Ion plate batteries

Mustafa, Jawed; Alqaed, Saeed; Husain, Shahid; Jamil, Basharat; Sharifpur, Mohsen; Cheraghian, Goshtasp (MDPI, 2023-01-15)

This paper presents the simulations of the cooling system of a battery pack (BTPC) consisting of lithium-ion (LIN) plate batteries. The BTPC includes six battery cells (BTCL) in two rows with three BTCLs, which are placed ...
Reflecting on a community of practice for engineering education research capacity in Africa : who are we and where are we going?

Matemba, Esther; Smith, Lelanie; Inglis, Helen Mary; Mogashana, Disaapele; Jansen, Lauren; Gwynne-Evans, Alison; Campbell, Anita L.; Kwuimy, Cedrick; Nassar, Shamim; Magara, Irene; Kloot, Bruce; Hattingh, Teresa; Raji, Atanda; Musa, Tagwa; Nyamapfene, Abel (Taylor and Francis, 2023)

The Engineering Education Research Network in Africa (EERN-Africa) was created to enable connections between practitioners and researchers with a shared interest in African engineering education contexts. Recognising the ...
Numerical investigation of the effect of rectangular and semicircular cavities filled with phase change materials installed on the solar wall

Mustafa, Jawed; Alqaed, Saeed; Almehmadi, Fahad Awjah; Husain, Shahid; Jamil, Basharat; Sharifpur, Mohsen (Springer, 2024)

The use of alternative energy sources, particularly solar energy, in buildings is rising and spreading around the globe. In this paper, a solar wall is analyzed using a numerical method. On the wall, a number of obstacles ...
Optimization of window solar gain for a building with less cooling load

Mustafa, Jawed; Alqaed, Saeed; Sharifpur, Mohsen; Meyer, Josua P. (Elsevier, 2024-01)

Considering solar gain through the window (SGW), this study investigated the effects of installing shading on cooling load. Approving energy analysis for the base building (without shading), the cooling, heating, and annual ...
Synchronous median instantaneous power spectrum-gram (SM-IPSgram) : A filter banks decomposition for identifying informative frequency band and a weighting function

Sibanda, Thato (Elsevier, 2024-04)

Over the years, informative frequency band (IFB) identification techniques emerged with the aim of guaranteeing optimal demodulation-band for the diagnostics of rotating machinery. A measured vibration signal from complex ...
Analysis of natural convection and the generation of entropy within an enclosure filled with nanofluid-packed structured pebble beds subjected to an external magnetic field and thermal radiation

Hashemi-Tilehnoee, Mehdi; Seyyedi, Seyyed Masoud; Del Barrio, Elena Palomo; Sharifpur, Mohsen (Elsevier, 2023-12)

Please read abstract in the article.
Modelling and optimization of residual stress induction on laser-worked X12Cr turbine blades

Fameso, Festus Oluwadare; Desai, Dawood Ahmed; Kok, Schalk; Armfield, Dylan; Newby, Mark (Erol Kurt, 2023)

The energy and power industry conventionally depends on large-scale turbomachinery to meet the ever-growing global energy demands. However, unplanned in-service failures remain a threat to sustainability with safety and ...

Now showing items 61-80 of 2901

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