ORCID Profile
0000-0002-5732-9443
Current Organisations
Queensland University of Technology
,
Rajshahi University of Engineering and Technology
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Publisher: AIP Publishing
Date: 2021
DOI: 10.1063/5.0037475
Publisher: Elsevier BV
Date: 11-2016
Publisher: Informa UK Limited
Date: 14-01-2019
Publisher: Universiti Malaysia Pahang Publishing
Date: 30-12-2013
Publisher: Elsevier BV
Date: 05-2022
Publisher: Frontiers Media SA
Date: 17-09-2021
Publisher: No publisher found
Date: 2019
DOI: 10.1007/S11356-018-3626-2
Abstract: Nowadays, the electrical and electronic products are a crucial commodity for different purposes of daily life and they are multiplying five times faster than human like mobile phones, which has reached zero to 7.2 billion in only three decades. A 5-10% yearly increase in the amount of used electrical and electronic equipment that are disposed of prudently can cause environmental hazards that have an aversive effect on human health, marine life, contamination of groundwater, and reduces soil's fertility. Management of this enormous influx of electrical and electronic waste is a challenge for developing countries like Bangladesh with barebones solid waste management infrastructure. Inadequacy of public awareness, policies and poor budget in the field of waste management are few of the key factors behind this delineating scenario. In this study, the picture electrical and electronic waste productions in Bangladesh along with the recent E-waste management systems have been presented comprehensively. Based on the study, it was concluded that most of the adapted E-waste management methods are conversational and detached from current technological capability. A set of sustainable E-waste management system has been suggested along with the challenges, which might appear during the implementation of these strategies. Successful implementation of these suggested systems would advance the quality of E-waste management in Bangladesh increasing the current 35% overall E-waste recycling rate and offer enormous energy from the waste.
Publisher: Elsevier BV
Date: 06-2016
Publisher: Informa UK Limited
Date: 29-04-2017
Publisher: Springer Science and Business Media LLC
Date: 07-02-2022
Publisher: Elsevier BV
Date: 2014
Publisher: Informa UK Limited
Date: 05-07-2018
DOI: 10.1080/10408398.2016.1227299
Abstract: For a long time, food engineers have been trying to describe the physical phenomena that occur during food processing especially drying. Physics-based theoretical modeling is an important tool for the food engineers to reduce the hurdles of experimentation. Drying of food is a multi-physics phenomenon such as coupled heat and mass transfer. Moreover, food structure is multi-scale in nature, and the microstructural features play a great role in the food processing specially in drying. Previously simple macroscopic model was used to describe the drying phenomena which can give a little description about the smaller scale. The multiscale modeling technique can handle all the phenomena that occur during drying. In this special kind of modeling approach, the single scale models from bigger to smaller scales are interconnected. With the help of multiscale modeling framework, the transport process associated with drying can be studied on a smaller scale and the resulting information can be transferred to the bigger scale. This article is devoted to discussing the state of the art multi-scale modeling, its prospect and challenges in the field of drying technology. This article has also given some directions to how to overcome the challenges for successful implementation of multi-scale modeling.
Publisher: Elsevier BV
Date: 2013
Publisher: Springer International Publishing
Date: 2019
Publisher: Springer International Publishing
Date: 2019
Publisher: Informa UK Limited
Date: 27-07-2023
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer Science and Business Media LLC
Date: 27-10-2017
DOI: 10.1007/S11356-017-0429-9
Abstract: The plastic-derived product, nowadays, becomes an indispensable commodity for different purposes. A huge amount of used plastic causes environmental hazards that turn in danger for marine life, reduces the fertility of soil, and contamination of ground water. Management of this enormous plastic waste is challenging in particular for developing countries like Bangladesh. Lack of facilities, infrastructure development, and insufficient budget for waste management are some of the prime causes of improper plastic management in Bangladesh. In this study, the route of plastic waste production and current plastic waste management system in Bangladesh have been reviewed extensively. It emerges that no technical and improved methods are adapted in the plastic management system. A set of the sustainable plastic management system has been proposed along with the challenges that would emerge during the implementation these strategies. Successful execution of the proposed systems would enhance the quality of plastic waste management in Bangladesh and offers enormous energy from waste.
Publisher: MDPI AG
Date: 31-05-2023
DOI: 10.3390/EN16114461
Abstract: Shrinkage is an obvious phenomenon that occurs when drying plant-based food materials, and it has a crucial influence on heat–mass transfer mechanisms, energy consumption in drying, and dried product quality. The present study aims to develop a theoretical shrinkage model considering the drying kinetics and shrinkage velocity approach during the convective drying of jackfruit. Since there is no theoretical model in the literature that considers the transfer process along with shrinkage phenomena for jackfruit drying, this work focuses on presenting the drying and shrinkage kinetics behaviour through the development of a mathematical model. Two distinct models were developed, each considering the presence or absence of shrinkage phenomena. Model validation was carried out by comparing the predicted results with experimental data from drying tests conducted at 60 °C, and model accuracy was evaluated through statistical error analysis. In the shrinkage-induced model, the shrinkage exhibited a linear relationship with drying time, as the moisture content decreased from 5.25 to 0.47 kg/kg on a dry basis when the temperature increased to 54 °C. Notably, the shrinkage-induced model demonstrated superior performance, displaying low mean absolute error (MAE) values—0.27 kg/kg on a dry basis for moisture content, 2.07 °C for temperature variation, and 0.04 for shrinkage, when compared to the model without shrinkage. Furthermore, the mean relative error (MRE) values for the shrinkage-induced model were 45.71% and 33.33% lower than those of the model without shrinkage for average moisture content and temperature, respectively. The findings of this study provide valuable insights for the food drying industry, offering new knowledge about drying kinetics and shrinkage characteristics that can contribute to the development of energy-efficient drying systems.
Publisher: Informa UK Limited
Date: 11-09-2015
Publisher: Informa UK Limited
Date: 14-05-2022
Publisher: Informa UK Limited
Date: 10-11-2017
Publisher: Elsevier BV
Date: 2014
Publisher: Informa UK Limited
Date: 02-06-2018
DOI: 10.1080/10408398.2016.1197881
Abstract: The development of a physics-based model of food processing is essential to improve the quality of processed food and optimize energy consumption. Food materials, particularly plant-based food materials, are complex in nature as they are porous and have hygroscopic properties. A multiphase porous media model for simultaneous heat and mass transfer can provide a realistic understanding of transport processes and thus can help to optimize energy consumption and improve food quality. Although the development of a multiphase porous media model for food processing is a challenging task because of its complexity, many researchers have attempted it. The primary aim of this paper is to present a comprehensive review of the multiphase models available in the literature for different methods of food processing, such as drying, frying, cooking, baking, heating, and roasting. A critical review of the parameters that should be considered for multiphase modelling is presented which includes input parameters, material properties, simulation techniques and the hypotheses. A discussion on the general trends in outcomes, such as moisture saturation, temperature profile, pressure variation, and evaporation patterns, is also presented. The paper concludes by considering key issues in the existing multiphase models and future directions for development of multiphase models.
Publisher: Informa UK Limited
Date: 09-06-2015
DOI: 10.1080/10408398.2014.971354
Abstract: Food materials are complex in nature as it has heterogeneous, amorphous, hygroscopic and porous properties. During processing, microstructure of food materials changes which significantly affects other properties of food. An appropriate understanding of the microstructure of the raw food material and its evolution during processing is critical in order to understand and accurately describe dehydration processes and quality anticipation. This review critically assesses the factors that influence the modification of microstructure in the course of drying of fruits and vegetables. The effect of simultaneous heat and mass transfer on microstructure in various drying methods is investigated. Effects of changes in microstructure on other functional properties of dried foods are discussed. After an extensive review of the literature, it is found that development of food structure significantly depends on fresh food properties and process parameters. Also, modification of microstructure influences the other properties of final product. An enhanced understanding of the relationships between food microstructure, drying process parameters and final product quality will facilitate the energy efficient optimum design of the food processor in order to achieve high-quality food.
Publisher: CRC Press
Date: 18-09-2017
Publisher: Informa UK Limited
Date: 05-10-2017
DOI: 10.1080/10408398.2017.1345852
Abstract: Pore formation in food s les is a common physical phenomenon observed during dehydration processes. The pore evolution during drying significantly affects the physical properties and quality of dried foods. Therefore, it should be taken into consideration when predicting transport processes in the drying s le. Characteristics of pore formation depend on the drying process parameters, product properties and processing time. Understanding the physics of pore formation and evolution during drying will assist in accurately predicting the drying kinetics and quality of food materials. Researchers have been trying to develop mathematical models to describe the pore formation and evolution during drying. In this study, existing porosity models are critically analysed and limitations are identified. Better insight into the factors affecting porosity is provided, and suggestions are proposed to overcome the limitations. These include considerations of process parameters such as glass transition temperature, s le temperature, and variable material properties in the porosity models. Several researchers have proposed models for porosity prediction of food materials during drying. However, these models are either very simplistic or empirical in nature and failed to consider relevant significant factors that influence porosity. In-depth understanding of characteristics of the pore is required for developing a generic model of porosity. A micro-level analysis of pore formation is presented for better understanding, which will help in developing an accurate and generic porosity model.
Publisher: Informa UK Limited
Date: 12-09-2017
Publisher: CRC Press
Date: 19-12-2014
DOI: 10.1201/B17949
Publisher: Springer Science and Business Media LLC
Date: 16-01-2019
Publisher: Elsevier BV
Date: 12-2016
Publisher: Elsevier BV
Date: 12-2015
Publisher: CRC Press
Date: 05-09-2023
Publisher: AIP Publishing
Date: 2019
DOI: 10.1063/1.5115881
Publisher: Elsevier BV
Date: 10-2017
Publisher: SAGE Publications
Date: 2012
DOI: 10.1155/2012/190518
Abstract: Among the available alternative sources of energy in Bangladesh bio-oil is recognized to be a promising alternative energy source. Bio-oil can be extracted by pyrolysis as well as expelling or solvent extraction method. In these days bio-oil is merely used in vehicles and power plants after some up gradation. However, it is not used for domestic purposes like cooking and lighting due to its high density and viscosity. This paper outlines the design of a gravity stove to use high dense and viscous bio-oil for cooking purpose. For this, Pongamia pinnata (karanj) oil extracted by solvent extraction method is used as fuel fed under gravity force. Efficiency of gravity stove with high dense and viscous bio-oil (karanj) is 11.81% which of kerosene stove is 17.80% also the discharge of karanj oil through gravity stove is sufficient for continuous burning. Thus, bio-oil can be effective replacement of kerosene for domestic purposes.
Publisher: MDPI AG
Date: 27-06-2023
Abstract: Microwave (MW) heating is a unique approach that, unlike conduction- and convection-based heating, can provide volumetric heating. Complex microstructural changes in food materials occur because of simultaneous heat and mass transfer during drying, significantly affecting food structure and quality. Food properties, drying methods, and other drying parameters all have an impact on the microstructure of food s les, which in turn affects drying kinetics and food quality. However, no study has been undertaken to investigate the development of nano–micro-pores (NM-pores) on the cell walls and their relationship with the moisture migration mechanism. This study presents a novel investigation of the microstructural changes in food during microwave drying, with a focus on the formation of nano–micro-pores (NM-pores) on cell walls and their impact on moisture transport kinetics. The utilized hot air was maintained at a temperature of 70 °C, whereas microwave (MW) power levels of 100 W, 200 W, 300 W, and 400 W were used in microwave drying. The findings of the study indicate that the development of NM-pores occurs only during intermittent microwave drying (IMCD), while the cell wall of the food s les tends to burn or collapse in continuous microwave drying (CMD) due to the high heat generated. Additionally, no NM-pores were observed in the cell wall during convective drying. During IMCD with microwave power ranging from 100 W to 400 W, a range of pore sizes from 0.1 μm to 8.5 μm were observed. Due to the formation of NM-pores and collapses, MW drying takes around 10–20 times less time than convective drying to remove the same quantity of moisture. The effective moisture diffusivity values were found to be the highest in CMD at 4.70 × 10−07 m2/s and the lowest in CD at 2.43 × 10−09 m2/s. IMCD showed a moderate diffusivity of 2.45 × 10−08 m2/s. This study investigates the formation of NM-pores on cell walls during microwave drying and their impact on moisture transport kinetics and establishes correlations between microstructure modifications and moisture migration pathways.
Publisher: SAGE Publications
Date: 2012
DOI: 10.1155/2012/316806
Abstract: The renovation of biomass waste in the form of date seed waste into activated carbon and biofuel by fixed bed pyrolysis reactor has been focused in this study to obtain gaseous, liquid, and solid products. The date seed in particle form is pyrolysed in an externally heated fixed bed reactor with nitrogen as the carrier gas. The reactor is heated from 400°C to 600°C. A maximum liquid yield of 50 wt.% and char of 30 wt.% are obtained at a reactor bed temperature of 500°C with a running time of 120 minutes. The oil is found to possess favorable flash point and reasonable density and viscosity. The higher calorific value is found to be 28.636 MJ/kg which is significantly higher than other biomass derived. Decolonization of 85–97% is recorded for the textile effluent and 75–90% for the tannery effluent, in all cases decreasing with temperature increase. Good adsorption capacity of the prepared activated carbon in case of diluted textile and tannery effluent was found.
Publisher: Elsevier
Date: 2022
Publisher: Elsevier BV
Date: 09-2011
DOI: 10.1016/J.WASMAN.2011.04.017
Abstract: In this study on the basis of lab data and available resources in Bangladesh, feasibility study has been carried out for pyrolysis process converting solid tire wastes into pyrolysis oils, solid char and gases. The process considered for detailed analysis was fixed-bed fire-tube heating pyrolysis reactor system. The comparative techno-economic assessment was carried out in US$ for three different sizes plants: medium commercial scale (144 tons/day), small commercial scale (36 tons/day), pilot scale (3.6 tons/day). The assessment showed that medium commercial scale plant was economically feasible, with the lowest unit production cost than small commercial and pilot scale plants for the production of crude pyrolysis oil that could be used as boiler fuel oil and for the production of upgraded liquid-products.
Publisher: Elsevier BV
Date: 12-2018
Publisher: Elsevier BV
Date: 05-2018
Publisher: Springer International Publishing
Date: 2016
Publisher: Frontiers Media SA
Date: 23-05-2018
Publisher: Springer International Publishing
Date: 2016
Publisher: Informa UK Limited
Date: 25-02-2015
Publisher: Springer International Publishing
Date: 2016
Publisher: Hindawi Limited
Date: 2014
DOI: 10.1155/2014/252848
Abstract: Biofuel produced by fast pyrolysis from biomass is a promising candidate. The heart of the system is a reactor which is directly or indirectly heated to approximately 500°C by exhaust gases from a combustor that burns pyrolysis gas and some of the by-product char. In most of the cases, external biomass heater is used as heating source of the system while internal electrical heating is recently implemented as source of reactor heating. However, this heating system causes biomass or other conventional forms of fuel consumption to produce renewable energy and contributes to environmental pollution. In order to overcome these, the feasibility of incorporating solar energy with fast pyrolysis has been investigated. The main advantages of solar reactor heating include renewable source of energy, comparatively simpler devices, and no environmental pollution. A lab scale pyrolysis setup has been examined along with 1.2 m diameter parabolic reflector concentrator that provides hot exhaust gas up to 162°C. The study shows that about 32.4% carbon dioxide (CO 2 ) emissions and almost one-third portion of fuel cost are reduced by incorporating solar heating system. Successful implementation of this proposed solar assisted pyrolysis would open a prospective window of renewable energy.
Publisher: Author(s)
Date: 2017
DOI: 10.1063/1.4984677
Publisher: Elsevier BV
Date: 11-2015
Publisher: SNF Swedish Nutrition Foundation
Date: 10-10-2018
Publisher: Elsevier BV
Date: 09-2018
Publisher: Elsevier BV
Date: 10-2017
Publisher: Informa UK Limited
Date: 08-10-2018
Publisher: Springer International Publishing
Date: 2016
Publisher: Springer International Publishing
Date: 2016
Publisher: Elsevier BV
Date: 2014
Location: Bangladesh
No related grants have been discovered for Mohammad Uzzal Hossain Joardder.