The Journal of The Institution of Engineers Malaysia最新文献

Feasibility Study of Solar-Powered Electric Vehicle Charging Infrastructure at Selected Petrol Stations in Malaysia 马来西亚部分加油站太阳能电动汽车充电基础设施可行性研究

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-05-13 DOI: 10.54552/v85i1.223

Chun Lim Siow, Adeesarn Chindamanee

{"title":"Feasibility Study of Solar-Powered Electric Vehicle Charging Infrastructure at Selected Petrol Stations in Malaysia","authors":"Chun Lim Siow, Adeesarn Chindamanee","doi":"10.54552/v85i1.223","DOIUrl":"https://doi.org/10.54552/v85i1.223","url":null,"abstract":"The transition from the conventional internal combustion engine (ICE) to electric vehicles (EV) are expected to result in higher total electricity demand in the country. With the introduction of more EVs into the market, the need for charging stations will grow, subsequently increasing power consumption. This research study aims to assess the potential of solar energy production at petrol stations in central region of Peninsular Malaysia and assess the feasibility of solar-powered petrol stations in meeting the energy demands of electric vehicles. 10 samples of existing petrol stations are selected to install a solar-powered DC charging station as a case study. To study their energy consumption, 90kW DC charger was evaluated. The design of the PV systems for the petrol stations was done by using the PVsyst simulation software. As a result, it is found that 90% of the designed PV systems are able to generate enough energy to meet the estimated annual energy consumption of the 90kW DC charging system. The results also showed that the cost to install the solar-powered charging system for both power ratings can be recouped in less than 2 years. Overall, this research study offers valuable insights for addressing the rising energy consumption resulting from the increased penetration of electric vehicles in the future. Additionally, the implementation of solar-powered charging infrastructure aligns with the country’s renewable energy objectives and efforts to reduce greenhouse gas emissions. However, the assessment of EV penetration and the adoption of charging infrastructure was conducted based on government targets rather than relying on current data regarding the actual numbers and trends of EVs and chargers in Malaysia. The availability of accurate and up-to-date data on the number of EVs, their battery characteristics, chargers, and user charging behaviors in Malaysia would contribute to further enhancing this research work.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":"35 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140983929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on the Benefits of the Implementation of Green Building Rating in Malaysia 马来西亚实施绿色建筑评级的益处研究

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-05-13 DOI: 10.54552/v85i1.226

Wong Hon Lam, Chee Fui Wong, O. Tan, Boon Hui Yap

{"title":"Study on the Benefits of the Implementation of Green Building Rating in Malaysia","authors":"Wong Hon Lam, Chee Fui Wong, O. Tan, Boon Hui Yap","doi":"10.54552/v85i1.226","DOIUrl":"https://doi.org/10.54552/v85i1.226","url":null,"abstract":" \u0000 \u0000 \u0000 \u0000 \u0000A green building is a sustainable design incorporating environmentally friendly practices in its construction and management. The objective of green building development is to reduce the negative impact of buildings on the environment by mitigating carbon dioxide emissions. Several countries worldwide, including Malaysia have established rating tools under the World Green Building Council to measure sustainability for various types of development. The goal is to encourage all nations to promote green building and replace conventional methods that harm the environment. In Malaysia, two of the most commonly used assessment tools for green building are GBI and GreenRE. The Malaysian government has implemented various policies to manage the construction process of green buildings, such as the National Green Technology Policy, Green Performance Assessment System, and the establishment of Green Technology Master Plan for managing green operations. However, green building projects in Malaysia are still in the formative stage, indicating that the construction industry in Malaysia is still in its infancy with regard to sustainable development. This study aims to investigate the perceived benefits of implementing Green Building Rating Tools in Malaysia. Specific factors that enable company readiness to adopt rating tools include benefits to occupants, facility management, and environmental sustainability. The research methodology used in this study was quantitative, employing a questionnaire survey with 140 respondents. The findings indicate that Facility Management and Environmental Sustainability are significantly related to Company's Readiness to adopt Green Building Rating. It is crucial for policymakers to provide incentives to project teams (developers, consultants, and contractors) to increase awareness about green construction and its implementation. \u0000 \u0000 \u0000 \u0000 \u0000","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":"23 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140984327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the Geological Significance and Industrial Application of Limestone: A Comprehensive Review 揭示石灰石的地质意义和工业应用：全面回顾

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-05-13 DOI: 10.54552/v85i1.238

Hamasa Kambakhsh, Masoud Haqbin, Saifullah Inanch, Kongul Qarizada, Deana Qarizada

{"title":"Unveiling the Geological Significance and Industrial Application of Limestone: A Comprehensive Review","authors":"Hamasa Kambakhsh, Masoud Haqbin, Saifullah Inanch, Kongul Qarizada, Deana Qarizada","doi":"10.54552/v85i1.238","DOIUrl":"https://doi.org/10.54552/v85i1.238","url":null,"abstract":"Limestone emerges as a fundamental component within sedimentary rock formations, which provides important information about previous geological eras and environmental circumstances. It retains fossils and remnants of extinct living forms because it mostly contains calcium carbonate. These deposits are used as traces of freshwater, marine, and terrestrial habitats from the past. Furthermore, variations in the creation of limestone provide hints about past geological events like tectonic activity and sea level shifts. Scientists can reconstruct previous ecosystems, temperatures, and evolutionary patterns by analyzing limestone, which helps us better comprehend Earth's environmental dynamics and history over millions of years. Its versatility extends beyond its geological significance, and its primary uses are in the manufacturing of steel and cement, as well as in the purification of wastewater and the processes involved in the production of bread and sugar. Limestone is also essential for supporting the carbon cycle and improving soil health in agricultural settings. In the review paper, we endeavored to conduct additional research to comprehend the intricacies of geology and the industrial application of limestone, as well as the need for interdisciplinary collaboration, sustainable practices, and cutting-edge technologies to leverage mineral resources for industrial growth. To be effective, it is essential. This study concludes with a strong call to action, imploring stakeholders to emphasize sustainable practices and encourage interdisciplinary collaboration while using limestone. By adhering to these guidelines, we can maximize the benefits of this priceless natural resource for both industrial use and environmental sustainability while also protecting it for future generations.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":"54 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140983575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Strength Properties of Lightweight Foamed Concrete with Steel Fiber 含钢纤维的轻质发泡混凝土的强度特性

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-05-13 DOI: 10.54552/v85i1.221

Siong Kang Lim, Yik Wong Wong, Ming Kun Yes, Hao Yee Chong

{"title":"Strength Properties of Lightweight Foamed Concrete with Steel Fiber","authors":"Siong Kang Lim, Yik Wong Wong, Ming Kun Yes, Hao Yee Chong","doi":"10.54552/v85i1.221","DOIUrl":"https://doi.org/10.54552/v85i1.221","url":null,"abstract":"The advancement in lightweight cementitious composite strength enhancement has promoting the usage of lightweight material across modern construction industry. Likewise, Lightweight foamed concrete (LFC) was introduced as an alternative material in the construction industry due to its properties including good thermal and sound insulation, lighter in weight and cost-effectiveness. In corresponded to LFC strength issue which often found to be diminished due to its lower density and porous structures. Studies have shown that the incorporation of steel fiber into concrete can recover the diminished strength of lightweight foamed concrete. Hence, this research focusses on the strength properties of LFC incorporate with 30 kg/m3 of steel fiber. Three types of LFC were prepared in this study including a trial mix of LFC (LFC-TM), a control mix of LFC (LFC-CTR), and LFC with 30 kg/m3 steel fiber (LFC-30SF). The LFC-CTR and LFC-30SF were casted based on the obtained optimum water-to-cement ratio from the plotted performance index graph, which was 0.56 for both mixes. The fresh properties of LFC-CTR and LFC-30SF were determined based on the result obtained from fresh density, flow table and inverted slump tests. Besides, the strength properties studied for LFC-CTR and LFC-30SF were compressive strength, splitting tensile strength and flexural strength at 7, 28 and 56 days after curing. From the test results obtained, the compressive, splitting tensile and flexural strength of LFC was found to be improved by adding the steel fiber into the mix. As for the fresh properties of LFC, the stability was found to decreased after the steel fiber was added into the mix, while the flowability and consistency was observed with an improvement subject to fibre addition. In short, incorporating steel fiber can improve the strength properties of LFC, which driving their usability and encouraging wider adoption across modern industries.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141128582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

New Capacity Model for Malaysian Urban Roads Using Macroscopic Fundamental Diagram and Multiple Linear Regression Approach 使用宏观基本图和多元线性回归法的马来西亚城市道路新通行能力模型

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-05-13 DOI: 10.54552/v85i1.217

H. L. Khoo, Lum Li Kai, KS Ashita

{"title":"New Capacity Model for Malaysian Urban Roads Using Macroscopic Fundamental Diagram and Multiple Linear Regression Approach","authors":"H. L. Khoo, Lum Li Kai, KS Ashita","doi":"10.54552/v85i1.217","DOIUrl":"https://doi.org/10.54552/v85i1.217","url":null,"abstract":"The existing manuals used to estimate urban road capacity have limitations. Adapting these manuals to compute the road capacity at urban roads reduces estimation accuracy. This study attempts to develop a capacity model to characterize urban road capacity. Twenty-two sites consisting of the collector/distributor roads and local roads in the Cheras-Kajang area in Klang Valley are selected for traffic data collection during the morning peak hour from 8 a.m. to 9 a.m. Site video camera recording is carried out, and the traffic data is extracted from the video footage. The speed-density and flow-density curves of the macroscopic fundamental diagram are fitted with the traffic data extracted. The capacity value is then derived from these curves. The urban road capacity model, termed the UrbanCap model, is developed in this study using the multiple linear regression approach. The results show that the urban road capacity depends on the type of road and carriageway and speed limit. The comparison of the capacity values produced from the UrbanCap model with other manuals justifies that it has a better estimate than the existing manuals used in Malaysia. The results also signify a need to develop a manual/guideline to quantify the urban road capacity in Malaysia for road design and analysis.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":" 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141128496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review on Lightweight Mobile Flood Wall Barrier: Way Forward for Malaysia 关于轻型移动式防洪墙屏障的评论：马来西亚的前进之路

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-02-14 DOI: 10.54552/v84i2.210

Woon Yang Tan, Fang Yenn Teo, Celine Xin Yi Chong, Chaofeng Tan, Chow Hock Lim

{"title":"Review on Lightweight Mobile Flood Wall Barrier: Way Forward for Malaysia","authors":"Woon Yang Tan, Fang Yenn Teo, Celine Xin Yi Chong, Chaofeng Tan, Chow Hock Lim","doi":"10.54552/v84i2.210","DOIUrl":"https://doi.org/10.54552/v84i2.210","url":null,"abstract":"Flooding is a persisting challenge in Malaysia. Combating flood risk has become a main priority for sustainable development in this country. The application of sophisticated engineering in hard structure approaches and flood control systems are often incongruous to the public. Therefore, there is a need to integrate the soft engineering approaches and the best practises of flood management to mitigate flood risk. There is also a need to integrate the concept of sustainable development into its planning policies towards flood hazard reduction. Mobile flood protection measures are useful as an alternative solution in flood protection and mitigation purposes. Mobile protective systems can be used for temporarily increasing the height of permanent flood protection structures during extreme events and can be utilised as emergency measure against flooding in unprotected low-lying areas. As the available mobile systems differ in the type of material, method of installation and available protection height, a description of their features, and potential application were examined including their respective opportunities and drawbacks. This article presents a review on different types of lightweight mobile flood wall barrier (MFWB) that were implemented to cope with floods in Malaysia with examples of application in other countries such as United Kingdom, Slovakia, and Netherlands. The MFWB products are reviewed and compared to each other according to the types, characteristics, mechanisms, drawbacks and how these measures are integrated into spatial planning. Based on the findings, several suggestions are given on how to improve the flood risk management in flood-prone areas and way forward for Malaysia.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":"69 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140527563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insight into Kedah State’s Coastal Perils: Tsunamis, Floods, and Sea Level Increase 洞察吉打州的沿海危险：海啸、洪水和海平面上升

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-02-14 DOI: 10.54552/v84i2.218

E. Al-Qadami, M. Razi, Syed Muzzamil Hussain Shah, Mohamad Fahmi Mohamad Ideris, Mahran Mahamud

{"title":"Insight into Kedah State’s Coastal Perils: Tsunamis, Floods, and Sea Level Increase","authors":"E. Al-Qadami, M. Razi, Syed Muzzamil Hussain Shah, Mohamad Fahmi Mohamad Ideris, Mahran Mahamud","doi":"10.54552/v84i2.218","DOIUrl":"https://doi.org/10.54552/v84i2.218","url":null,"abstract":"Coastal hazards refer to various natural processes and events occurring at coastlines and are driven by a combination of geological, meteorological, and oceanographic factors, posing risks to human activities, infrastructure, and the environment. Efforts to mitigate the consequences of these hazards are essential to minimize the potential risks and ensure the sustainability of the nearshore communities. Such efforts are developing early warning systems, constructing protective structures, proper land-use planning, and sustainable coastal management practices. In the last decade, coastal hazards become more severe due to the climate change consequences which directly contribute to sea level rise, storm intensification, and flooding. Therefore, investigating the coastal hazards in a specific region is of utmost importance to understand the degree of hazard and prepare effective mitigation strategies. This study specifically delves into the examination of coastal hazards along the mainland of Kedah and the coastal areas of Langkawi Island. It involves a comprehensive analysis of historical incidents and the prognosis of future scenarios. The study focuses on three primary natural hazards: tsunamis, floods, and the rising sea levels. Particularly, it scrutinizes significant past occurrences, notably the devastating tsunami of 2004. Additionally, projections regarding sea level increments for 2030, 2050, and 2100 are presented and deliberated upon. The paper concludes by suggesting recommendations for appropriate coastal management practices and effective mitigation strategies.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":"1077 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140527714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Polymer Treatment on Polypropylene Fibre Reinforced Mortar at the Fibre/Matrix Interfacial Transition Zone 聚合物处理对纤维/基质界面过渡区聚丙烯纤维增强砂浆的影响

The Journal of The Institution of Engineers Malaysia Pub Date : 2024-02-14 DOI: 10.54552/v84i2.216

Foo Wei Lee

{"title":"Effects of Polymer Treatment on Polypropylene Fibre Reinforced Mortar at the Fibre/Matrix Interfacial Transition Zone","authors":"Foo Wei Lee","doi":"10.54552/v84i2.216","DOIUrl":"https://doi.org/10.54552/v84i2.216","url":null,"abstract":"Polypropylene, a widely used thermoplastic, has become a major contributor to environmental waste due to its extensive production and the gradual degradation of its fibres. To address this critical issue, a comprehensive study was undertaken to investigate the impact of polypropylene fibre reinforcement in mortar. The study involved a battery of tests designed to evaluate the effectiveness of this approach. Results indicated that the optimal percentage of polypropylene fibres for achieving maximum compressive strength after 7 and 28 days was found to be 0.4%. This percentage performed best within a specific water-to-cement ratio (w/c) range of 0.6 to 0.8. Additionally, the research revealed that the most effective combination for enhancing flexural strength was a water-to-cement ratio (w/c) in the range of 0.6 to 0.8, along with a 0.6% polypropylene fibre content. It's worth noting that this innovative technique not only promises to bolster the strength characteristics of mortar but also offers a sustainable solution by reducing the environmental burden associated with polypropylene waste. These findings have significant implications for achieving commercial and engineering goals while addressing the limitations of traditional mortar practices. In summary, the study offers a promising path toward enhanced construction materials and reduced environmental impact.","PeriodicalId":518472,"journal":{"name":"The Journal of The Institution of Engineers Malaysia","volume":"251 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140527723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0