Saad Akhtar

Vehicle Decarbonization @ National Renewable Energy Laboratory

Publications


2021


Development and validation of an asymptotic solution for a two-phase Stefan problem in a droplet subjected to convective boundary condition


Saad Akhtar, Minghan Xu, Agus P. Sasmito

International Journal of Thermal Sciences, vol. 164, 2021 Apr 31


Development and validation of a semi-analytical framework for droplet freezing with heterogeneous nucleation and non-linear interface kinetics


Saad Akhtar, Minghan Xu, Agus P. Sasmito

International Journal of Heat and Mass Transfer, vol. 166, 2021 31


2020


Analytical Modeling of Outward Solidification With Convective Boundary in Cylindrical Coordinates


Minghan Xu, Saad Akhtar, Ahmad F. Zueter, Mahmoud A. Alzoubi, Agus P. Sasmito

ASME International Mechanical Engineering Congress and Exposition, Volume 11: Heat Transfer and Thermal Engineering, 2020 Nov


Development of Analytical Solution for a Two-Phase Stefan Problem in Artificial Ground Freezing Using Singular Perturbation Theory


Minghan Xu, Saad Akhtar, Ahmad Zueter, Victor Auger, Mahmoud Alzoubi, Agus Pulung Sasmito

Journal of Heat Transfer-transactions of The Asme, vol. 142(12), 2020 Oct 30


2019


Verification and Validation of Droplet Freezing for Convective Boundary Condition Using Matched Asymptotic Perturbation Method and Computational Fluid Dynamics


Saad Akhtar, Minghan Xu, Agus Sasmito

ASME International Mechanical Engineering Congress and Exposition, Volume 8: Heat Transfer and Thermal Engineering, 2019 Nov


Singular Perturbation Solution for a Two-Phase Stefan Problem in Outward Solidification


Minghan Xu, Saad Akhtar, Mahmoud A. Alzoubi, Agus P. Sasmito

ASME 2019 International Mechanical Engineering Congress and Exposition, 2019 Oct 10


2018


Numerical investigation of flame structure and blowout limit for lean premixed turbulent methane-air flames under high pressure conditions


Saad Akhtar, Saad Akhtar, Stefano Piffaretti, Tariq Shamim, Tariq Shamim

Applied Energy, vol. 228, 2018 Sep 14, pp. 21-32


2017


Correlating variability of the leakage characteristics with the hydraulic performance of an auxiliary ventilation system


Saad Akhtar, Mustafa Kumral, Agus P Sasmito

Building and Environment, vol. 121, Elsevier, 2017, pp. 200--214


Characterization of an Open-loop Seasonal Thermal Energy Storage System


Mahmoud A. Alzoubi, Saad Akhtar, Matthew Fong, Agus P. Sasmito

Energy Procedia, vol. 142, 2017 Oct 30, pp. 3401-3406


Prediction of air flow, methane, and coal dust dispersion in a room and pillar mining face


Lu Yueze, Saad Akhtar, Agus P. Sasmito, Jundika C. Kurnia

International journal of mining science and technology, vol. 27(4), 2017 May 30, pp. 657-662


Investigation of energy conversion and flame stability in a curved micro-combustor for thermo-photovoltaic (TPV) applications


Saad Akhtar, Saad Akhtar, Mohammed N. Khan, Jundika C. Kurnia, Tariq Shamim

Applied Energy, vol. 192, 2017 Mar 14, pp. 134-145


2016


Advances in biofuel production from oil palm and palm oil processing wastes: A review


Jundika C. Kurnia, Sachin V. Jangam, Saad Akhtar, Agus P. Sasmito, Arun S. Mujumdar, Arun S. Mujumdar

Biofuel Research Journal, vol. 3(1), 2016 Jan 29, pp. 332-346


2015


Numerical Investigation of H2-air Premixed Combustion in a Curved Micro-combustor for Thermo-photovoltaic (TPV) Applications


Saad Akhtar, Mohammed N. Khan, Jundika C. Kurnia, Tariq Shamim

Energy Procedia, vol. 75, 2015, pp. 3060-3065


A three-dimensional computational model of H2-air premixed combustion in a circular micro-channel for thermo-photovoltaic (TPV) application


Saad Akhtar, Jundika C. Kurnia, Mohammad Khan, Tariq Shamim

AIP Conference Proceedings, vol. 1648, 2015, p. 850098


Numerical Investigation of Heat Transfer Performance of Various Coiled Square Tubes for Heat Exchanger Application


Jundika C. Kurnia, Agus P. Sasmito, Saad Akhtar, Tariq Shamim, Arun S. Mujumdar

Energy Procedia, vol. 75, 2015 Jun 31, pp. 3168-3173