Browsing by Author "Muhib, Md. Iftakharul"

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A COMPARATIVE STUDY OF MULTISTORIED BUILDING USING THE BUILDING INFORMATION MODELLING (BIM) METHOD & CONVENTIONAL MODELING METHOD
(AMERICAN INTERNATIONAL JOURNAL OF SCIENCES AND ENGINEERING RESEARCH (AIJSER ), 2022) Khan, Md. Shawkut Ali; Muhib, Md. Iftakharul
Although the construction industry has been evolving for centuries and researchers have been seeking innovative solutions for decades, diverse challenges still exist in making the construction process faster, safer, cheaper, and more accurate. Building Information Modelling (BIM) is one of the emerging tools in the field of architectural engineering to overcome these problems. Applications of this tool are very promising but its uses are still relatively limited in many countries including Bangladesh. So this study conducted a pilot project and case study analysis using Building Information Modeling (BIM) to control the project’s time and cost from Bangladesh's perspective. The objectives of this study are: (1) to examine the benefits of using BIM for project time and cost control and (2) to study the challenges of applying BIM to a case project during its life cycle. This project is being achieved by introducing Autodesk Revit MEP (2021) as the methodological tool of BIM software. The resultant data in the BIM system are extremely useful and can be generated to optimize the project delivery processes. The results also revealed that using a case study, BIM functions to help reduce costs, optimise the schedule, and make benefits for all project participants. Thus, model-based cost estimation and time schedule optimization show effective results of using BIM instead of conventional modelling methods.
A Comparative Study of Non-Frost Refrigerator Over the Frost Refrigerator in Economical and Environmental Perspective
(The Millennium University, 2020) Khan, Md. Shawkut Ali; Muhib, Md. Iftakharul
The study focuses on a comparative operation cost analysis between the non-frost and frost type refrigerator. Refrigerator is an essential equipment for food storage technique around the world. Both frost and non-frost refrigerators are widely used nowadays. However, their costing operations are not same. So the objective of this study was set to find out more economical refrigerator type that is either the frost type is economical or the non-frost type. A comparative analysis was done for both type refrigerators with the focus on the calculative results of initial cost (i.e. assembly cost, decoration cost, process cost), maintenance cost and the total 10 years’ power consumption cost. The calculated results depicted that though initial cost is found higher in non-frost inverter refrigerator, the other cost like maintenance cost as well as the overall 10 years’ power consumption cost was found to be cheaper in non-frost inverter refrigerator. Based on the experimental data it can be suggested that the non-frost with inverter type refrigerator is found to be more economical than frost type refrigerator. So it can be recommended that nonfrost with inverter type refrigerator can be used in both domestically and industrially in the minimum costing rate.
A Comparative Study of VRF Air Conditioning System over the Conventional Domestic Air-Conditioning System
(The Millennium University, 2021) Khan, Md. Shawkut Ali; Muhib, Md. Iftakharul
All over the world there is a call to encourage sustainable energy thinking and implementation. There is an urgent need to consider sustainable solutions that are able to reduce energy consumption cost. In air conditioning field, the rise of the variable refrigerant flow systems has made big progress. This study focuses on cost analysis to evaluate the economic feasibility of conventional, VRF and VRF duct type air conditioning system. The hourly and daily energy consumption of both systems were characterized based on corresponding outdoor air temperatures. Results showed that VRF air conditioning system is 15% less costly than conventional air condition. Though VRF duct system is less costly than conventional VRF, the standard rooftop height of the studied building doesn’t support VRF duct type installation. Besides the open ducting line up will not look good and creating cover for these duct will pile up the cost further. The analysis also shows that the VRF system uses 17% and 73% less energy than the rooftop System in cooling and heating seasons, respectively. The implementation of this pilot result on the National level will promote the use of sustainable energy technologies such as the VRF system.
An Overview of Health and Environmental Threats From the Brick Kiln Industry Around the Capital of Bangladesh
(Sciences and Engineering Research, 2022-10-01) Muhib, Md. Iftakharul; Khan, Md. Shawkut Ali
Bangladesh is one of the top brick manufacturing countries in the globe. With rapid urbanization and industrialization, the brick manufacturing industry is elevating to its peak level day by day and contributing to the country’s GDP significantly. This research aims to investigate the current environmental and health threat coming from brick kilns around the capital of Bangladesh. The selected areas are Savar, Tongi, Amin Bazar and Ashulia. The methodology followed in this study was field surveying in the selected areas and information acquisitions from the secondary data. Results from this study revealed that brick kilns are highly responsible for environmental pollution that subsequently deteriorates the air quality, causes land degradation, threatens biodiversity and poses a potential impact on human health. Results also revealed that there are mainly four types of brick kilns found in selected areas e.g. Chimney Kiln (CK), Zigzag kiln (ZK), Hoffman Kiln (HK) and Hybrid Hoffman Kiln (HHK). Of these, the Fixed Chimney Kiln is found to be very obsolete at present days and creates environmental pollution at different levels. Besides these, strict implementation of the Brick Manufacturing and Brick Kilns Establishment (Control) Act, 2013 in the studied locations is still far away. This paper urges the attention of the policymakers as well as the researchers to prioritize the solution to this promising but ever-increasing pollution-causing industry of Bangladesh in sustainable ways
AN OVERVIEW OF HEALTH AND ENVIRONMENTAL THREATS FROM THE BRICK KILN INDUSTRY AROUND THE CAPITAL OF BANGLADESH
((AMERICAN INTERNATIONAL JOURNAL OF SCIENCES AND ENGINEERING RESEARCH )AIJSER, 2022) Muhib, Md. Iftakharul; Khan, Md. Shawkut Ali
Bangladesh is one of the top brick manufacturing countries in the globe. With rapid urbanization and industrialization, the brick manufacturing industry is elevating to its peak level day by day and contributing to the country’s GDP significantly. This research aims to investigate the current environmental and health threat coming from brick kilns around the capital of Bangladesh. The selected areas are Savar, Tongi, Amin Bazar and Ashulia. The methodology followed in this study was field surveying in the selected areas and information acquisitions from the secondary data. Results from this study revealed that brick kilns are highly responsible for environmental pollution that subsequently deteriorates the air quality, causes land degradation, threatens biodiversity and poses a potential impact on human health. Results also revealed that there are mainly four types of brick kilns found in selected areas e.g. Chimney Kiln (CK), Zigzag kiln (ZK), Hoffman Kiln (HK) and Hybrid Hoffman Kiln (HHK). Of these, the Fixed Chimney Kiln is found to be very obsolete at present days and creates environmental pollution at different levels. Besides these, strict implementation of the Brick Manufacturing and Brick Kilns Establishment (Control) Act, 2013 in the studied locations is still far away. This paper urges the attention of the policymakers as well as the researchers to prioritize the solution to this promising but ever-increasing pollution-causing industry of Bangladesh in sustainable ways.
ANALYSING THE BEST QUALITY PARAMETER OF DIE-CASTING PRODUCTS
(AMERICAN INTERNATIONAL JOURNAL OF SCIENCES AND ENGINEERING RESEARCH(AIJSER)(, 2022) Khan, Md. Shawkut Ali; Muhib, Md. Iftakharul
Die casting has revolutionized manufacturing technology by facilitating mass production while maintaining dimensional accuracy, stability, and strength. It has a broad array of applications in the automotive, lighting, industrial, and domestic sectors. The design parameters have a substantial impact on the quality of die castings. As a response, the aim of this research is set to look into the design characteristics of a hot chamber die-casting. The analysis was carried out using a hot chamber injection molding machine and ZAMAK 5 (Zinc: 96%, Al: 3.5%, and Cu: 0.5%) as the material. To determine the optimal quality parameters for a hot chamber die casting method, the injection speed, chilled water temperature, and cooling time were varied. The injection speeds were set to 4 ms-1, 5 ms-1, and 5 ms1, respectively, while the chiller temperatures were set at 13°C, and 18°C. In addition, cooling times of 0.8s, 1.2s, 1.6s, and 2s were also recorded. The production analysis was further investigated for casting weights of 40g, 60g, 80g, and 100g. The cooling time was set to 2 seconds, 1.6 seconds, 1.2 seconds, and 0.8 seconds. Following the collection of data, we discovered and examined the most successful and cost-effective parameters for mass production, which offer promises for the industries.
DISSEMINATING THE BIOMEDICAL WASTE GENERATION SCENARIO DURING COVID-19
(AMERICAN INTERNATIONAL JOURNAL OF NURSING EDUCATION AND PRACTICE, 2021) Muhib, Md. Iftakharul; Akter, Rifat; Kabir, Md. Humaun; Rayhan, Md. Shamim; Khan, Md. Shawkut Ali
This study investigates the present COVID-19-related medical waste generation scenario and suggests a way forward from the perspective of lower-middle-income countries like Bangladesh. Bangladesh is a densely populated vulnerable country in the perspective of the COVID-19 induced biomedical waste management field. The pandemic COVID-19 has already created enormous instability in healthcare waste handling and subsequent recycling around the world. The medical waste management sector in Bangladesh is struggling and COVID-19 makes the situation even more complicated. A rigorous timeseries calculation was done to determine the facemask and medical waste load during COVID-19 in Bangladesh from March 8, 2020, to September 13, 2021 period. Results showed that about 1,58,10,400 pieces of facemask are disposed of alone in different urban areas which is equivalent to 517 tons of solid waste while extra 5,203 tons of biomedical waste is added every day to regular waste streams during this pandemic. The findings of this study suggest that these extra tons of hazardous waste threaten the aquaculture of the country and promote the risk of contagious diseases to the waste workers especially women and as well as at the community level. The findings also reveal that this pandemic has already created a hindrance to achieving the country’s SDGs by 2020.
RISK PRIORITIZATION OF ENVIRONMENTAL ASPECTS AND OCCUPATIONAL HEALTH SAFETY IN TEXTILE INDUSTRIES OF GAZIPUR INDUSTRIAL AREA, BANGLADESH
(CRIBFB, 2021) Muhib, Md. Iftakharul; Khan, Md. Shawkut Ali; Akter, Rifat
Though textile industries are the backbone of country's economy; it possesses the environmental and occupational health safety risks also. After the Rana Plaza tragedy, the environmental and occupational health safety regulations become started to come spotlight. However, still there found anomalies that threaten environmental and occupational health safety. So to get an overview of present risk levels in different industries, the aim of this study was set to evaluate the risk prioritization for both environmental aspects and occupational health safety. A total of 10 textile industries were selected and a direct field survey along with an interview from workers to top management was done to conduct the study. Risk assessment results for environmental aspects showed that water pollution shows a moderate risk rating value while air quality, soil quality, noise, waste generation, hazardous material handling, and miscellaneous use showed low risks. Again calculated results for occupational health safety showed that necessary action is recommended to avoid future risk in all-hazard categories of different types except for electrical hazards. Controlling measures were suggested in accordance with the risk priority. Thus it is high time to explore and evaluate the risk level and take necessary action on the resultant priority basis.
THERMOELECTRIC POWER GENERAION FROM WASTE HEAT OF GAS STOVE BY USING THE THERMOELECTRIC GENERATOR
(AMERICAN INTERNATIONAL JOURNAL OF SCIENCES AND ENGINEERING RESEARCH, 2022-12) Khan, Md. Shawkut Ali; Muhib, Md. Iftakharul; Nafis, Mahdee
The objective of this research is set to produce energy by utilizing the unused heat of gas stove through thermoelectric generator. Currently, an increasing concern of environmental issues of emissions like greenhouse effects and the scarcity of fossil fuel has resulted in extensive research into the alternative ways of generating electrical power. Thermoelectric power generator has been considering as one of the promising alternatives due to its advantages. The application of this alternative option in converting waste-heat energy directly into electrical power that may also enhance the overall efficiencies of energy conversion systems. In this study, a gas burner was set to generate electricity that will produce waste heat. One thermoelectric unit is installed underneath the burner cap of the gas burner. Gas flame at the edge of the burner cap creates heat sources (hot side) for the thermoelectric unit. A gas-mixing chamber underneath the thermoelectric unit functions as heat sink (cold side) for the thermoelectric unit. An insulation plate is inserted in between the thermoelectric unit and the burner cap to control the hot side temperature. The thermoelectric unit generates electricity while the gas burner is in use and the flame heats up the burner cap. The thermoelectric unit connects to an electric circuit and provides electricity to power devices
Thermoelectric Power Generaion From Waste Heat Of Gas Stove By Using The Thermoelectric Generator
(American Center of Science and Education, 2022-12-30) Khan, Md. Shawkut Ali; Muhib, Md. Iftakharul; Nafis, Mahdee
The objective of this research is set to produce energy by utilizing the unused heat of gas stove through thermoelectric generator. Currently, an increasing concern of environmental issues of emissions like greenhouse effects and the scarcity of fossil fuel has resulted in extensive research into the alternative ways of generating electrical power. Thermoelectric power generator has been considering as one of the promising alternatives due to its advantages. The application of this alternative option in converting waste-heat energy directly into electrical power that may also enhance the overall efficiencies of energy conversion systems. In this study, a gas burner was set to generate electricity that will produce waste heat. One thermoelectric unit is installed underneath the burner cap of the gas burner. Gas flame at the edge of the burner cap creates heat sources (hot side) for the thermoelectric unit. A gas-mixing chamber underneath the thermoelectric unit functions as heat sink (cold side) for the thermoelectric unit. An insulation plate is inserted in between the thermoelectric unit and the burner cap to control the hot side temperature. The thermoelectric unit generates electricity while the gas burner is in use and the flame heats up the burner cap. The thermoelectric unit connects to an electric circuit and provides electricity to power devices.