Article
Thermodynamics
U. K. Zhapbasbayev, G. I. Ramazanova, D. Zh Bossinov, B. K. Kenzhaliyev
Summary: The study focuses on the transportation of waxy oil in industrial pipelines, using pour point depressants to decrease pour point and increase fluidity for effective transportation. Through numerical methods, continuity, momentum, and energy equations were solved, and the theoretical analysis was verified with experimental data, confirming the effectiveness of pour point depressants for pumping waxy oil at temperatures below pour point.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Construction & Building Technology
Guoping Qian, Xinyue Luo, Huanan Yu, Changyun Shi, Chao Zhang, Ping Li
Summary: Although shear strength is important in asphalt mixtures, it is not included in traditional pavement design. The damage shape in uniaxial penetration and circle shear tests accurately reflects practical asphalt pavement damage. This study conducted various tests to evaluate shear strength in different conditions and found that SBS-modified asphalt mixtures have higher shear strength than conventional mixtures. The shear performance of mixtures is influenced by asphalt binders, aggregates, and mineral powder.
Article
Thermodynamics
Jundie Chen, Marco Lubrano Lavadera, Alexander A. Konnov
Summary: In this study, new measurements of the laminar burning velocity of ammonia + oxygen + argon mixtures were performed and validated against nine kinetic models. It was found that the models by Han et al., Shrestha et al., and Okafor et al. provided the best predictions. The model of Han et al. was modified to better reproduce the experimental data.
COMBUSTION AND FLAME
(2023)
Article
Energy & Fuels
Miriam Reyes, Rosaura Sastre, Blanca Gimenez, Clara Sesma
Summary: This work presents an experimental study and kinetic characterization of combustion process and a morphologic study of hydrogen/methane-air mixtures. The results reveal the relationship between important parameters such as burning velocity and cellularity with fuel percentage and mixture composition through experiments and image processing.
Article
Mechanics
Pititat Itsariyapinyo
Summary: This paper explores the possibility of visualizing low-speed, near-wall flow using schlieren imaging technique. Wind tunnel testing is conducted on a backward-facing step at different Reynolds numbers. The study finds that it is important to reduce the interference to the flow field during visualization and achieve the required visibility for characterizing the flow field.
Article
Physics, Fluids & Plasmas
Yue Xiao, Yi Li, Moli Zhao, Shaowei Wang
Summary: This paper provides a mathematical description of the onset of instability for buoyancy-driven flow around a cone. The self-similar solutions of the basic flow are derived, and the linear instability properties are investigated using the Chebyshev collocation method. Primary instabilities on the cone surface are identified as type-I and type-II modes. Energy analysis reveals the dominant effects in different modes. This study is significant for understanding buoyancy-driven systems.
Article
Thermodynamics
Q. T. Le, S. J. Ormiston, H. M. Soliman
Summary: A detailed numerical model of film condensation from a binary mixture is developed in this study as a potential tool to evaluate the performance of alternative refrigerants. The model can predict the condensation behavior of binary mixtures with any composition and provides detailed results of heat and mass transfer and local flow parameters. The influence of different mixture compositions on condensation rates is also investigated.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2022)
Article
Engineering, Mechanical
A. C. DeVoria
Summary: In this note, a longstanding indeterminacy in the solution of self-similar planar mixing layers is resolved. The importance of the entrainment boundary condition in determining the spatial growth rate and spreading parameter for a given mixing layer is demonstrated. The results are validated using existing experimental data.
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
(2022)
Article
Thermodynamics
Maria Clara de Jesus Vieira, Luis Fernando Figueira da Silva
Summary: The phenomenon of premixed laminar flame flashback in tubes has been studied for several decades. However, the effect of CO2 dilution on flame flashback has not been addressed. This study investigates the critical conditions for flame flashback in mixtures of hydrocarbons diluted with CO2, using experimental and numerical data. The results show that the choice of flame thickness definition has a significant impact on the critical Damkohler number.
FLOW TURBULENCE AND COMBUSTION
(2023)
Article
Chemistry, Physical
V. Pessina, F. Berni, S. Fontanesi, A. Stagni, M. Mehl
Summary: This study provides laminar flame speed correlations for ammonia/hydrogen/air mixtures under high pressure and high temperature conditions, and proposes a formula that adapts to the hydrogen content. It is of great importance for the development of suitable numerical tools for ammonia/hydrogen mixtures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Han Zhang, Xinli Hu, Lehua Wang, Erping Zhao, Chang Liu
Summary: The effect of block convexity on the shear behaviors of soil-rock mixtures (S-RMs) was investigated using accurate 3D models constructed with the discrete element method (DEM). A new block geometry modeling approach was proposed for generating 3D blocks with different convexities but the same form and angularity. A DEM modeling approach was also proposed for generating S-RM models with the same block distribution characteristics and possible block breakage. The shear behaviors of the S-RMs were analyzed to reveal the effect mechanism of block convexity.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Physics, Applied
Rui Yang, Yuxin Zhao, Lican Wang
Summary: In this work, natural transition in a supersonic corner boundary layer has been experimentally studied using a nanoparticle-based planar laser scattering technique. It is inspiring to observe that the natural transition position of the corner boundary layer shows a random behavior among the corner side, flat-plate side, and their combination. Based on an intermittent factor analysis, these stochastic transitions show a dominant preference for transitions occurring near the corner region.
APPLIED PHYSICS LETTERS
(2023)
Article
Food Science & Technology
Xuedong Gu, Juan Li, Lin Yang, Lei Liu, Lan Xiao
Summary: To extend the shelf life and maintain the quality of blueberries, researchers investigated the waxy layer of wax gourd epidermis to mimic the blueberry epidermis, and fabricated magnolol-loaded shellac/zein nanoparticles. The optimized nanoparticles and wax gourd epidermis were then used to create a protective coating sprayed on the surface of postharvested blueberries.
Article
Engineering, Geological
Mohammad Adnan Farooq, Sanjay Nimbalkar
Summary: The major drawbacks of railway tracks are noise, vibration, and track degradation. Resilient mats and asphalt have been used to reduce noise and vibration, but they are expensive. This study aims to develop a sustainable and resilient base layer for railway tracks using ground rubber and polyurethane foam adhesive. Tests were conducted to evaluate the performance of the material, and it was found that the polyurethane foam adhesive helped reduce settlement and improve soil shear strength, while the ground rubber increased the damping ratio of the soil. Optimum dosages of polyurethane foam adhesive and ground rubber were recommended.
Article
Materials Science, Composites
Charbel Y. Seif, Ilige S. Hage, Ramsey F. Hamade
Summary: Two-parameter Weibull reliability plots are used to investigate the effect of strain rate on the interfacial strengths of unidirectional carbon fiber reinforced epoxy composites. The results show a slight decrease in the Weibull modulus with increasing strain rates, while the ILSS and ILPS increase with increasing strain rates.
POLYMER COMPOSITES
(2022)
Article
Energy & Fuels
Samira Haj-Shafiei, Anil K. Mehrotra
Article
Chemistry, Multidisciplinary
Samira Haj-Shafiei, Ben Workman, Milana Trifkovic, Anil K. Mehrotra
CRYSTAL GROWTH & DESIGN
(2019)
Article
Energy & Fuels
Sina Ehsani, Samira Haj-Shafiei, Anil K. Mehrotra
Article
Energy & Fuels
Sina Ehsani, Anil K. Mehrotra
Article
Engineering, Chemical
Sina Ehsani, Anil K. Mehrotra
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Review
Engineering, Chemical
Anil K. Mehrotra, Sina Ehsani, Samira Haj-Shafiei, Adebola S. Kasumu
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2020)
Article
Engineering, Chemical
Steven D. Herman, Anil K. Mehrotra
Summary: Research shows that fouling in OTSGs introduces significant thermal resistance, reducing heat transfer rate and increasing tube-wall temperature, potentially exceeding safe operating limits.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
Engineering, Chemical
Simant R. Upreti, Anil K. Mehrotra
Summary: This work delves into the complex phenomenon of gas diffusion in liquids, highlighting the challenges in estimating diffusivity and presenting various experimental methods for determining gas diffusivity. It summarizes diffusivity data for a wide range of gas-liquid systems and provides empirical correlations for interpolating gas diffusivity.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Anil K. Mehrotra, Kunal Karan, Michael S. Kallos, Arindom Sen, Sina Ehsani, Brett Abraham, Erin L. Roberts
Summary: Leo Augustus Behie was a dedicated teacher and mentor, known for his research in classical chemical engineering challenges, biotechnology, and biomedical engineering. He founded a unique research laboratory at the University of Calgary and trained numerous doctoral students, master's degree students, and postdoctoral scholars. His research ranged from gas-solid fluidized bed reactors to cellular secretome studies for developing a cure for Parkinson's disease.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Editorial Material
Engineering, Chemical
Anil K. Mehrotra, Kunal Karan, Michael S. Kallos, Arin Sen
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Review
Engineering, Chemical
Anil K. Mehrotra, Peter Englezos
Summary: This paper reviews the research contributions of Professor Bishnoi in the field of chemical engineering. With a productive and illustrious career spanning over four decades, Prof. Bishnoi has made significant contributions to understanding thermodynamics, kinetics, and process design in chemical engineering. The review highlights his academic achievements and the impact of his research in various areas, including gas hydrates and hydrocarbon systems.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Anil K. Mehrotra, Joao B. P. Soares, Krishnaswamy Nandakumar, Pierre J. Carreau, Norman Epstein, Gregory S. Patience
Summary: The history and achievements of The Canadian Journal of Chemical Engineering highlight the multifaceted development of chemical engineering and its crucial role in advancing chemical sciences and engineering.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Editorial Material
Engineering, Chemical
Peter Englezos, Anil K. Mehrotra
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Saheli Rao, Sivanesh Murugan, Gopal Achari, Basil Perdicakis, Anil K. Mehrotra
Summary: Steam generation at steam-assisted gravity drainage facilities produces large amounts of wastewater with high pH and high silica levels. Neutralization of these concentrated streams results in the formation of a gel-like substance, making filtration of amorphous silica gel difficult. Experimental investigation was conducted to study the effects of SiO2 concentration, NaCl:SiO2 ratio, and pH. Response surface methodology was applied to optimize the responses and determine the optimal ranges of independent factors for maximum silica removal and filtration effectiveness.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Editorial Material
Engineering, Chemical
Anil K. Mehrotra, Ajay K. Dalai, Simant R. Upreti, Suddhasatwa Basu, Chinthapudi Eswaraiah, Ranjan K. Dwari
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
