Mechanical Engineering, Energy, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology
16
Scopus Publications
239
Scholar Citations
8
Scholar h-index
6
Scholar i10-index
Scopus Publications
Assessment of Second Moment Closure Models for Modelling of Natural Convection in a Tall Cavity and Displacement Ventilation A. Sibo Anthony, Huirem Neeranjan Singh, Tikendra Nath Verma Heat Transfer, 2026 This study examines turbulence models for predicting natural convection in two scenarios: a differentially heated cavity (AR = 28.68) and a displacement‐ventilated room. For the tall cavity, the elliptic blending Reynolds stress model (EBRSM), the standard Reynolds stress model (RSM), the model, and the model are investigated. In contrast, in the displacement‐ventilated room scenario, EBRSM and are examined. For the EBRSM, the elliptic blending differential flux model (EBDFM) computes the turbulent heat flux. The RSM employs a differential flux model (DFM), while the and models use the Simple Gradient Diffusion Hypothesis (SGDH). Transient simulation is conducted for the tall cavity, whereas a steady‐state simulation is performed for displacement ventilation. The simulation results indicate that the EBRSM delivers improved predictions of both the turbulent and mean quantities near the wall in the 2D case. Both EBRSM and RSM provide a better representation of the secondary motions in the cavity, particularly at the corners. Except for the model, all models yield good predictions of the wall heat flux. In the displacement ventilation scenario, the EBRSM and EBDFM combination provides better predictions of the temperature and velocity fields, capturing sharper gradients than the model. Additionally, it predicts a stronger, more pronounced plume structure compared to the model.
An exposition on the results of utilizing biogas as an alternative fuel on the attributes of internal combustion engines International Journal of Renewable Energy Research, 2019
Experimental study of the effect of compression ratio on the characteristics of a biogas fueled dual fuel compression ignition engine International Journal of Renewable Energy Research, 2018
Modeling and optimization of castor biodiesel production employing chicken and swan goose eggshell derived green alkali heterogeneous catalyst: Comparative study of RSM, ANN … MR Khan, HN Singh Biomass and Bioenergy 201, 108091 , 2025 2025 Citations: 7
Sustainable biodiesel synthesis using bamboo leaves ash doped with Anser cygnoides eggshell derived CaO (BLA@ SiO2-CaO) green catalyst: Characterization and optimization study MR Khan, HN Singh, WR Singh Biomass and Bioenergy 198, 107815 , 2025 2025 Citations: 8
Intelligent approaches to process optimization of biodiesel synthesis from Ricinus communis seed using a fusion of chicken and duck eggshells doped with KBr catalyst WR Singh, HN Singh, MR Khan Biomass and Bioenergy 195, 107679 , 2025 2025 Citations: 8
CCD-RSM optimization of biodiesel production from waste cooking oil using Angulyagra oxytropis and Bellamya crassa snail shell-based heterogeneous catalysts WR Singh, HN Singh Fuel 378, 132953 , 2024 2024 Citations: 15
Clean biodiesel production approach using waste swan eggshell derived heterogeneous catalyst: an optimization study employing box-behnken-response surface methodology MR Khan, HN Singh Industrial Crops and Products 220, 119181 , 2024 2024 Citations: 17
RSM Optimization of Biodiesel from Waste Cooking Oil Using Snail Shell Derived Heterogeneous Catalyst WR Singh, HN Singh Recent Advances in Materials: Select Proceedings of ICSTE 2023 25, 133 , 2023 2023 Citations: 3
Computation of turbulent natural convection in an enclosure with differential flux models AS Anthony, HN Singh, TN Verma International Journal of Heat and Mass Transfer 202, 123659 , 2023 2023 Citations: 8
Swan eggshell derived CaO as a heterogeneous catalyst for biodiesel production from castor oil MR Khan, HN Singh International Conference on Science, Technology and Engineering, 189-199 , 2023 2023 Citations: 5
A lab scale waste to energy conversion study for pyrolysis of plastic with and without catalyst: Engine emissions testing study TS Singh, TN Verma, HN Singh Fuel 277, 118176 , 2020 2020 Citations: 81
An exposition on the results of utilizing biogas as an alternative fuel on the attributes of internal combustion engines HN Singh, A Layek International Journal of Renewable Energy Research (IJRER) 9 (3), 1249-1259 , 2019 2019 Citations: 12
Experimental study of biogas production using starch-rich food waste at pilot scale HN Singh, TS Singh, TN Verma IOP Conf. Ser. Mater. Sci. Eng , 2018 2018 Citations: 5
Experimental study of the effect of compression ratio on the characteristics of a biogas fueled dual fuel compression ignition engine HN Singh, A Layek Int. J. Renew. Energy Res 8 (4), 2075-2084 , 2018 2018 Citations: 6
Investigation of bearing characteristic number by experimental and numerical approach TN Verma, HN Singh, P Nashine 2017 8th Annual Industrial Automation and Electromechanical Engineering … , 2017 2017 Citations: 1
FEM model for stochastic mechanical and thermal postbuckling response of functionally graded material plates applied to panels with circular and square holes having material … A Lal, HN Singh, NL Shegokar International Journal of Mechanical Sciences 62 (1), 18-33 , 2012 2012 Citations: 49
Radar reflections from varying depths of rain volume(Forward scattered radar reflections from various depths of rain volume, employing ultrasonic simulation) HS HAYRE, HN SINGH 1970
Serum levels at varying intervals after administration of 250 mg. of oxytetracycline. H Singh, A Lal The Indian Journal of Medical Research 55 (9), 930-934 , 1967 1967
MOST CITED SCHOLAR PUBLICATIONS
A lab scale waste to energy conversion study for pyrolysis of plastic with and without catalyst: Engine emissions testing study TS Singh, TN Verma, HN Singh Fuel 277, 118176 , 2020 2020 Citations: 81
FEM model for stochastic mechanical and thermal postbuckling response of functionally graded material plates applied to panels with circular and square holes having material … A Lal, HN Singh, NL Shegokar International Journal of Mechanical Sciences 62 (1), 18-33 , 2012 2012 Citations: 49
Clean biodiesel production approach using waste swan eggshell derived heterogeneous catalyst: an optimization study employing box-behnken-response surface methodology MR Khan, HN Singh Industrial Crops and Products 220, 119181 , 2024 2024 Citations: 17
CCD-RSM optimization of biodiesel production from waste cooking oil using Angulyagra oxytropis and Bellamya crassa snail shell-based heterogeneous catalysts WR Singh, HN Singh Fuel 378, 132953 , 2024 2024 Citations: 15
An exposition on the results of utilizing biogas as an alternative fuel on the attributes of internal combustion engines HN Singh, A Layek International Journal of Renewable Energy Research (IJRER) 9 (3), 1249-1259 , 2019 2019 Citations: 12
Sustainable biodiesel synthesis using bamboo leaves ash doped with Anser cygnoides eggshell derived CaO (BLA@ SiO2-CaO) green catalyst: Characterization and optimization study MR Khan, HN Singh, WR Singh Biomass and Bioenergy 198, 107815 , 2025 2025 Citations: 8
Intelligent approaches to process optimization of biodiesel synthesis from Ricinus communis seed using a fusion of chicken and duck eggshells doped with KBr catalyst WR Singh, HN Singh, MR Khan Biomass and Bioenergy 195, 107679 , 2025 2025 Citations: 8
Computation of turbulent natural convection in an enclosure with differential flux models AS Anthony, HN Singh, TN Verma International Journal of Heat and Mass Transfer 202, 123659 , 2023 2023 Citations: 8
Modeling and optimization of castor biodiesel production employing chicken and swan goose eggshell derived green alkali heterogeneous catalyst: Comparative study of RSM, ANN … MR Khan, HN Singh Biomass and Bioenergy 201, 108091 , 2025 2025 Citations: 7
Experimental study of the effect of compression ratio on the characteristics of a biogas fueled dual fuel compression ignition engine HN Singh, A Layek Int. J. Renew. Energy Res 8 (4), 2075-2084 , 2018 2018 Citations: 6
Swan eggshell derived CaO as a heterogeneous catalyst for biodiesel production from castor oil MR Khan, HN Singh International Conference on Science, Technology and Engineering, 189-199 , 2023 2023 Citations: 5
Experimental study of biogas production using starch-rich food waste at pilot scale HN Singh, TS Singh, TN Verma IOP Conf. Ser. Mater. Sci. Eng , 2018 2018 Citations: 5
RSM Optimization of Biodiesel from Waste Cooking Oil Using Snail Shell Derived Heterogeneous Catalyst WR Singh, HN Singh Recent Advances in Materials: Select Proceedings of ICSTE 2023 25, 133 , 2023 2023 Citations: 3
Investigation of bearing characteristic number by experimental and numerical approach TN Verma, HN Singh, P Nashine 2017 8th Annual Industrial Automation and Electromechanical Engineering … , 2017 2017 Citations: 1
Radar reflections from varying depths of rain volume(Forward scattered radar reflections from various depths of rain volume, employing ultrasonic simulation) HS HAYRE, HN SINGH 1970
Serum levels at varying intervals after administration of 250 mg. of oxytetracycline. H Singh, A Lal The Indian Journal of Medical Research 55 (9), 930-934 , 1967 1967