dilawar husain - Academia.edu (original) (raw)

Papers by dilawar husain

Advances in Materials Science and Engineering

Supercapacitors are the cutting-edge, high performing, and emerging energy storage devices in the... more Supercapacitors are the cutting-edge, high performing, and emerging energy storage devices in the future of energy storage technology. It delivers high energy and produces higher specific capacitances. This research study provides insights into supercapacitor materials and their potential applications by examining different battery technologies compared with supercapacitors’ advantages and disadvantages. Transition metal hydroxides (cobalt hydroxides) have been studied to develop electrodes for supercapacitors and their use in various fields of energy and conversion devices. Cobalt-based metal oxides and hydroxides provide high-capacitance electrodes for supercapacitors. Metal hydroxides combine high electrical conductivity and excellent stability over time. The metal oxides used to prepare the electrodes for supercapacitors are cobalt-based metal oxides and hydroxides. It is stronger than most of the other oxides and has tremendous electrical conductivity. Cobalt hydroxides are als...

Environment, Development and Sustainability

Environmental footprints and eco-design of products and processes, 2023

Authorea (Authorea), Jan 10, 2023

Supercapacitors can be useful in many fields of modern technology due to their high energy storag... more Supercapacitors can be useful in many fields of modern technology due to their high energy storage capacity and fast chargedischarge cycle. It is replacing conventional electrical energy storage devices such as capacitors and batteries. The supercapacitor electrodes are efficient for sustainable energy storage and conversions due to their long lifespan and high cyclic rate. Recently, supercapacitors are used in every field of technology like transportation, consumer electronics, electrical instruments, wearable and portable devices, etc. Cobalt hydroxide thin films were prepared by the electrochemical deposition of CoCl2, Co(NO3)2, and Co(OAc)2 onto stainless steel (SS) substrate. The cobalt-based chemical compounds of 0.1M electrolyte solution is prepared in 100ml double distilled water at room temperature. Further, structural, morphological and capacitive properties were studied. In addition, the electrochemical characteristics of the obtained cobalt hydroxide thin films were determined experimentally to predict their application efficiency in advanced energy storage devices such as supercapacitors.

Environmental footprints and eco-design of products and processes, 2023

Environmental footprints and eco-design of products and processes, 2023

Environmental footprints and eco-design of products and processes, 2023

Journal of Nanomaterials

Nanocatalysts play a significant role to improve the thermal and physical properties of biodiesel... more Nanocatalysts play a significant role to improve the thermal and physical properties of biodiesel. In the present work, the multiwalled carbon nanotubes (MWCNTs) as an additive with the fraction of 30, 40, and 50 ppm are dispersed with the different biodiesel–diesel blends of 10%, 30%, and 50% of waste cooking oil (WCO)-based biodiesel (B10, B30, B50) for the prediction of four-stroke compression ignition (CI) engine emissions using multilayer neural network (MLNN) model. An MLNN model uses a backpropagation algorithm to map input and output parameters. The input parameters to MLNN are load, blends, and MWCNTs in ppm. On the other hand, the output parameters are HC, CO, and NOx. The results for the optimum topological structure of 3-10-3 denoted mean square error (MSE) equal to 0.095 that are capable of predicting the emissions for different operating conditions. Thereafter, the developed MLNN model is tested on an experimental setup consisting of a single-cylinder four-stroke CI en...

Sustainability

Currently, most concrete industries use conventional cement (Ordinary Portland Cement) as a bindi... more Currently, most concrete industries use conventional cement (Ordinary Portland Cement) as a binding material which involves natural resource depletion, colossal CO2 emissions, and a huge energy supply. The present study addresses this critical issue by using stone dust (sun-dried and calcinated) and water treatment sludge (sun-dried and calcinated) to replace cement partly in M20-grade concrete production. The environmental impact of ready-mixed concrete (RMC) production with conventional cement and partially replaced cement by other cementitious material, i.e., stone dust and water treatment sludge in concrete, is assessed through ecological footprint (EF) indicator. Moreover, a novel sustainability index is proposed for ready-mixed concrete plants to scale the environmental impact of different types of concrete (or grades) on the sustainability scale (environmental, social, and economic sustainability). The results showed that the sun-dried water treatment sludge and sun-dried sto...

Environmental Assessment of Recycled Waste

Journal of Cleaner Production

International Journal of Environmental Science and Technology

Insights into Regional Development

India is one of the largest countries in the world, with a population mainly living in villages a... more India is one of the largest countries in the world, with a population mainly living in villages and primarily engaged in dairy activities along with agriculture. Despite being the largest milk-producing nation, lives of local farmers are challenging due to the lack of access to technology in rural areas. This study aims to develop an integrated system that can solve the problems faced by farmers by utilizing locally available resources. Due to the time lag between milking and storage, milk spoilage is more likely to occur in remote areas. Immediate pasteurization and storage facilities are required. Heating and refrigeration are essential for pasteurization. In India, most villages face power shortages, so biomass heat is suitable for pasteurizing milk. A steam jet refrigeration system is also proposed as it runs with waste biomass for chilling milk. Steam required for both heating and chilling milk is generated in the same biomass-fired boiler. Also, make-up water requirements in the boiler are fulfilled using a rainwater harvesting system. In a conventional dairy plant, a cooling tower is used to supply condensate water required in the condenser. Here this water requirement is fulfilled using a bore well. Subsequently, this water is stored in the irrigation pond to cool it by natural cooling through surface evaporation, making the water suitable for irrigation purposes. Also, the payback period of this system is estimated to be less than six months. Looking at the multiple benefits, this integrated system will further facilitate in achieving sustainable development goals through rural development by 2030.

Advances in Civil Engineering

Rapid urbanization significantly impacts natural resource demands and waste management in the con... more Rapid urbanization significantly impacts natural resource demands and waste management in the construction sector. In this study, a novel methodology has been developed that could assess the overall environmental impact of a building during its lifespan by considering resources such as building materials, energy use, emissions, water, manpower, and wastes. The proposed method can estimate the life cycle ecological footprint (EFT) of a building. The result indicates that 957.07 global hectares (gha) of bioproductive land are required during the lifespan of the case building. The CO2 absorption land is the most significant bioproductive land in the EFT of the building. The low environmental impact of building materials may reduce the ecological footprint (EF) of buildings, and using renewable energy can also reduce the operational EF of a building. The proposed building materials and solar PV systems have the potential to reduce the building’s life cycle environmental impact by up to ...

Environmental Footprints of Recycled Products, 2022

Environmental Footprints of Recycled Products, 2022

Urban Ecology, 2020

Abstract Energy efficiency is now considered an essential requirement for all new and existing bu... more Abstract Energy efficiency is now considered an essential requirement for all new and existing buildings because buildings consume nearly one-fourth of the total electricity production in India. This study focuses on some carbon reduction strategies for the built envelope of a tropical urban area by examining four representative buildings in the city of Prayagraj (Allahabad), Uttar Pradesh, India. Through simulation models using eQuest and RETScreen software, four case studies were examined: (1) for a primary school building, a rooftop solar PV system may reduce 13.5 tCO2 emissions annually with a payback period of 8.5 years; (2) for ISKCON temple complex, by utilizing solar PV-wind hybrid power system and earth air tunnels (EAT), the annual electricity saving of 23.49 MWh can reduce 36 tCO2 annually; (3) for a college building, solar PV with solar hot water system may reduce the annual emissions by 170 tCO2; (4) for an auditorium building, rooftop wind turbines and EAT for thermal comfort can replace mechanical air-conditioning thereby saving 217 MWh electricity and 347 tCO2 emissions annually. These case studies demonstrate that significant potential exists for improving the urban ecology in a tropical climate.

In order to provide thermal comfort in a tropical country like India, the use of conventional win... more In order to provide thermal comfort in a tropical country like India, the use of conventional window air-conditioners is very much electricity intensive, which may lead to a further increase in the greenhouse gas (GHG) emissions. A significant economic and environmental advantage can be achieved by adopting modified air cooling systems. This paper presents a case study for proposing a design of an energy-efficient and affordable cooling system for a hostel building located at the Motilal Nehru National Institute of Technology, Allahabad located at Prayagraj (UP), India. The design consists of a solar electricity-based centralized chilled water air conditioning system and an earth air heat exchanger (EAHE) as a passive cooling solution. The EAHE takes advantage of the fact that at a depth of 4 meters, the earth’s temperature remains constant throughout the year. An earth air tunnel can provide year round thermal comfort i.e. both heating and cooling depending on inlet air temperature...

International Journal of Sustainable Engineering, 2019

The food processing industries significantly contribute to the consumption of fossil energy, mate... more The food processing industries significantly contribute to the consumption of fossil energy, materials, and other resources with commensurate GHG emissions. In this study, the Ecological Footprint (EF) assessment of four different food products (Pickles, Jams, Honey and Chutney) manufactured in a food processing industry (Merry Foods) in India has been presented. Simultaneously, the reduction potential in terms of the EF of the food products has also been estimated by suggesting the installation of some sustainable technologies. The ecological footprint of packaged pickle, jam, honey and chutney products have been estimated as 1.67, 0.54, 15.94 and 2.18 gha/ton, respectively. The overall bio-productive land that had the maximum involvement for the food products' processing at the industry was Cropland (85.7%) followed by CO 2 absorption land (11.2%). The life cycle EF of suggested sustainable systems such as grid connected rooftop solar PV system, biogas plant, and rooftop rainwater harvesting system has been estimated as 56.18 gha, 1.33 gha, and 2.92 gha, respectively. Hence, the EF reduction potential of the food products by using all the suggested sustainable technologies was estimated as 99.6 gha. This study is a step towards the sustainability of industrial food products.

Journal of The Institution of Engineers (India): Series A, 2018

Buildings are responsible for significant natural resource consumption, waste generation and envi... more Buildings are responsible for significant natural resource consumption, waste generation and environmental pollution. Building impacts are generally assessed through life cycle analysis (LCA). This study integrates LCA with the Ecological Footprint indicator for the assessment of a building's impact on the planet. In order to determine ecological impact of a building, a methodology has been established for the estimation of life cycle ecological footprint (LCEF total) of the building, as well as to assess its impact due to resource consumption (energy, water, building materials, manpower, etc.) and waste assimilation over the life cycle. For an academic building located in India taken as a case study, the LCEF total is found to be 4426.47 gha and the LCEF total per unit floor area is 0.6 gha/ m 2. The average annual Ecological Footprint (EF avg) of the academic building has been estimated as 73.77 gha/year, that is, approximately 101 times more than the built-up land of the academic building. For the academic year of 2015-2016, the average annual Ecological Footprint per student (EF avg/student) of the academic building is 0.05 gha/ student-year. If annual grid electricity consumption of the building is replaced by the grid-connected rooftop photovoltaic system in the ratios of 100%, 75%, 50% and 25%, it can be reduced up to 61%, 46%, 31% and 15% of the total LCEF total of the academic building, respectively.

Advances in Materials Science and Engineering

Supercapacitors are the cutting-edge, high performing, and emerging energy storage devices in the... more Supercapacitors are the cutting-edge, high performing, and emerging energy storage devices in the future of energy storage technology. It delivers high energy and produces higher specific capacitances. This research study provides insights into supercapacitor materials and their potential applications by examining different battery technologies compared with supercapacitors’ advantages and disadvantages. Transition metal hydroxides (cobalt hydroxides) have been studied to develop electrodes for supercapacitors and their use in various fields of energy and conversion devices. Cobalt-based metal oxides and hydroxides provide high-capacitance electrodes for supercapacitors. Metal hydroxides combine high electrical conductivity and excellent stability over time. The metal oxides used to prepare the electrodes for supercapacitors are cobalt-based metal oxides and hydroxides. It is stronger than most of the other oxides and has tremendous electrical conductivity. Cobalt hydroxides are als...

Environment, Development and Sustainability

Environmental footprints and eco-design of products and processes, 2023

Authorea (Authorea), Jan 10, 2023

Supercapacitors can be useful in many fields of modern technology due to their high energy storag... more Supercapacitors can be useful in many fields of modern technology due to their high energy storage capacity and fast chargedischarge cycle. It is replacing conventional electrical energy storage devices such as capacitors and batteries. The supercapacitor electrodes are efficient for sustainable energy storage and conversions due to their long lifespan and high cyclic rate. Recently, supercapacitors are used in every field of technology like transportation, consumer electronics, electrical instruments, wearable and portable devices, etc. Cobalt hydroxide thin films were prepared by the electrochemical deposition of CoCl2, Co(NO3)2, and Co(OAc)2 onto stainless steel (SS) substrate. The cobalt-based chemical compounds of 0.1M electrolyte solution is prepared in 100ml double distilled water at room temperature. Further, structural, morphological and capacitive properties were studied. In addition, the electrochemical characteristics of the obtained cobalt hydroxide thin films were determined experimentally to predict their application efficiency in advanced energy storage devices such as supercapacitors.

Environmental footprints and eco-design of products and processes, 2023

Environmental footprints and eco-design of products and processes, 2023

Environmental footprints and eco-design of products and processes, 2023

Journal of Nanomaterials

Nanocatalysts play a significant role to improve the thermal and physical properties of biodiesel... more Nanocatalysts play a significant role to improve the thermal and physical properties of biodiesel. In the present work, the multiwalled carbon nanotubes (MWCNTs) as an additive with the fraction of 30, 40, and 50 ppm are dispersed with the different biodiesel–diesel blends of 10%, 30%, and 50% of waste cooking oil (WCO)-based biodiesel (B10, B30, B50) for the prediction of four-stroke compression ignition (CI) engine emissions using multilayer neural network (MLNN) model. An MLNN model uses a backpropagation algorithm to map input and output parameters. The input parameters to MLNN are load, blends, and MWCNTs in ppm. On the other hand, the output parameters are HC, CO, and NOx. The results for the optimum topological structure of 3-10-3 denoted mean square error (MSE) equal to 0.095 that are capable of predicting the emissions for different operating conditions. Thereafter, the developed MLNN model is tested on an experimental setup consisting of a single-cylinder four-stroke CI en...

Sustainability

Currently, most concrete industries use conventional cement (Ordinary Portland Cement) as a bindi... more Currently, most concrete industries use conventional cement (Ordinary Portland Cement) as a binding material which involves natural resource depletion, colossal CO2 emissions, and a huge energy supply. The present study addresses this critical issue by using stone dust (sun-dried and calcinated) and water treatment sludge (sun-dried and calcinated) to replace cement partly in M20-grade concrete production. The environmental impact of ready-mixed concrete (RMC) production with conventional cement and partially replaced cement by other cementitious material, i.e., stone dust and water treatment sludge in concrete, is assessed through ecological footprint (EF) indicator. Moreover, a novel sustainability index is proposed for ready-mixed concrete plants to scale the environmental impact of different types of concrete (or grades) on the sustainability scale (environmental, social, and economic sustainability). The results showed that the sun-dried water treatment sludge and sun-dried sto...

Environmental Assessment of Recycled Waste

Journal of Cleaner Production

International Journal of Environmental Science and Technology

Insights into Regional Development

India is one of the largest countries in the world, with a population mainly living in villages a... more India is one of the largest countries in the world, with a population mainly living in villages and primarily engaged in dairy activities along with agriculture. Despite being the largest milk-producing nation, lives of local farmers are challenging due to the lack of access to technology in rural areas. This study aims to develop an integrated system that can solve the problems faced by farmers by utilizing locally available resources. Due to the time lag between milking and storage, milk spoilage is more likely to occur in remote areas. Immediate pasteurization and storage facilities are required. Heating and refrigeration are essential for pasteurization. In India, most villages face power shortages, so biomass heat is suitable for pasteurizing milk. A steam jet refrigeration system is also proposed as it runs with waste biomass for chilling milk. Steam required for both heating and chilling milk is generated in the same biomass-fired boiler. Also, make-up water requirements in the boiler are fulfilled using a rainwater harvesting system. In a conventional dairy plant, a cooling tower is used to supply condensate water required in the condenser. Here this water requirement is fulfilled using a bore well. Subsequently, this water is stored in the irrigation pond to cool it by natural cooling through surface evaporation, making the water suitable for irrigation purposes. Also, the payback period of this system is estimated to be less than six months. Looking at the multiple benefits, this integrated system will further facilitate in achieving sustainable development goals through rural development by 2030.

Advances in Civil Engineering

Rapid urbanization significantly impacts natural resource demands and waste management in the con... more Rapid urbanization significantly impacts natural resource demands and waste management in the construction sector. In this study, a novel methodology has been developed that could assess the overall environmental impact of a building during its lifespan by considering resources such as building materials, energy use, emissions, water, manpower, and wastes. The proposed method can estimate the life cycle ecological footprint (EFT) of a building. The result indicates that 957.07 global hectares (gha) of bioproductive land are required during the lifespan of the case building. The CO2 absorption land is the most significant bioproductive land in the EFT of the building. The low environmental impact of building materials may reduce the ecological footprint (EF) of buildings, and using renewable energy can also reduce the operational EF of a building. The proposed building materials and solar PV systems have the potential to reduce the building’s life cycle environmental impact by up to ...

Environmental Footprints of Recycled Products, 2022

Environmental Footprints of Recycled Products, 2022

Urban Ecology, 2020

Abstract Energy efficiency is now considered an essential requirement for all new and existing bu... more Abstract Energy efficiency is now considered an essential requirement for all new and existing buildings because buildings consume nearly one-fourth of the total electricity production in India. This study focuses on some carbon reduction strategies for the built envelope of a tropical urban area by examining four representative buildings in the city of Prayagraj (Allahabad), Uttar Pradesh, India. Through simulation models using eQuest and RETScreen software, four case studies were examined: (1) for a primary school building, a rooftop solar PV system may reduce 13.5 tCO2 emissions annually with a payback period of 8.5 years; (2) for ISKCON temple complex, by utilizing solar PV-wind hybrid power system and earth air tunnels (EAT), the annual electricity saving of 23.49 MWh can reduce 36 tCO2 annually; (3) for a college building, solar PV with solar hot water system may reduce the annual emissions by 170 tCO2; (4) for an auditorium building, rooftop wind turbines and EAT for thermal comfort can replace mechanical air-conditioning thereby saving 217 MWh electricity and 347 tCO2 emissions annually. These case studies demonstrate that significant potential exists for improving the urban ecology in a tropical climate.

In order to provide thermal comfort in a tropical country like India, the use of conventional win... more In order to provide thermal comfort in a tropical country like India, the use of conventional window air-conditioners is very much electricity intensive, which may lead to a further increase in the greenhouse gas (GHG) emissions. A significant economic and environmental advantage can be achieved by adopting modified air cooling systems. This paper presents a case study for proposing a design of an energy-efficient and affordable cooling system for a hostel building located at the Motilal Nehru National Institute of Technology, Allahabad located at Prayagraj (UP), India. The design consists of a solar electricity-based centralized chilled water air conditioning system and an earth air heat exchanger (EAHE) as a passive cooling solution. The EAHE takes advantage of the fact that at a depth of 4 meters, the earth’s temperature remains constant throughout the year. An earth air tunnel can provide year round thermal comfort i.e. both heating and cooling depending on inlet air temperature...

International Journal of Sustainable Engineering, 2019

The food processing industries significantly contribute to the consumption of fossil energy, mate... more The food processing industries significantly contribute to the consumption of fossil energy, materials, and other resources with commensurate GHG emissions. In this study, the Ecological Footprint (EF) assessment of four different food products (Pickles, Jams, Honey and Chutney) manufactured in a food processing industry (Merry Foods) in India has been presented. Simultaneously, the reduction potential in terms of the EF of the food products has also been estimated by suggesting the installation of some sustainable technologies. The ecological footprint of packaged pickle, jam, honey and chutney products have been estimated as 1.67, 0.54, 15.94 and 2.18 gha/ton, respectively. The overall bio-productive land that had the maximum involvement for the food products' processing at the industry was Cropland (85.7%) followed by CO 2 absorption land (11.2%). The life cycle EF of suggested sustainable systems such as grid connected rooftop solar PV system, biogas plant, and rooftop rainwater harvesting system has been estimated as 56.18 gha, 1.33 gha, and 2.92 gha, respectively. Hence, the EF reduction potential of the food products by using all the suggested sustainable technologies was estimated as 99.6 gha. This study is a step towards the sustainability of industrial food products.

Journal of The Institution of Engineers (India): Series A, 2018

Buildings are responsible for significant natural resource consumption, waste generation and envi... more Buildings are responsible for significant natural resource consumption, waste generation and environmental pollution. Building impacts are generally assessed through life cycle analysis (LCA). This study integrates LCA with the Ecological Footprint indicator for the assessment of a building's impact on the planet. In order to determine ecological impact of a building, a methodology has been established for the estimation of life cycle ecological footprint (LCEF total) of the building, as well as to assess its impact due to resource consumption (energy, water, building materials, manpower, etc.) and waste assimilation over the life cycle. For an academic building located in India taken as a case study, the LCEF total is found to be 4426.47 gha and the LCEF total per unit floor area is 0.6 gha/ m 2. The average annual Ecological Footprint (EF avg) of the academic building has been estimated as 73.77 gha/year, that is, approximately 101 times more than the built-up land of the academic building. For the academic year of 2015-2016, the average annual Ecological Footprint per student (EF avg/student) of the academic building is 0.05 gha/ student-year. If annual grid electricity consumption of the building is replaced by the grid-connected rooftop photovoltaic system in the ratios of 100%, 75%, 50% and 25%, it can be reduced up to 61%, 46%, 31% and 15% of the total LCEF total of the academic building, respectively.