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Current energy recycling technology for agricultural waste in Malaysia 马来西亚当前的农业废弃物能源回收技术
Pub Date : 2024-01-15 DOI: 10.37934/progee.27.1.1122
Hui Ming Yow, Amir Abdul Razak, Adel Aboulqasim Alheemar
This article examines the production and use of biomass as a renewable energy source in Malaysia, focusing on the agricultural processing industry. Malaysia produces approximately 168 million tonnes of biomass, including palm oil waste, rice husks, coconut debris, sugar cane waste, urban waste, and forestry waste. The abundance of biomass resources provides a competitive advantage over other renewable energy sources. However, the industry faces restrictions and challenges, such as high disposal costs, high electricity consumption, and related expenses. To address these issues, it is crucial to study the types of biomass available, current technology for biomass energy production (waste-to-energy), and relevant environmental motivations, initiatives, and legislation. This paper analyses the agricultural waste available for energy generation, existing technologies for converting waste into energy, and the role of environmental policies in the agricultural processing business. Energy recycling, which involves utilizing agricultural waste to generate electricity and thermal energy, is proposed as a viable solution. Several technologies are explored, including anaerobic digestion, gasification, incineration/combustion, and pyrolysis, each with advantages and disadvantages. Thermochemical processes are highlighted for their effectiveness, requiring minimal pre-treatment, shorter reaction times, and adaptability to various biomass feedstocks and climatic conditions. The implementation of incentives, initiatives, and policies by the Malaysian government serves as guidelines for the agricultural processing industry to adopt energy recycling practices. By emphasising energy sustainability and promoting green building initiatives, the industry can contribute to a more sustainable and environmentally friendly energy landscape.
本文以农产品加工业为重点,探讨了马来西亚生物质能作为可再生能源的生产和使用情况。马来西亚生产约 1.68 亿吨生物质,包括棕榈油废料、稻壳、椰子碎片、甘蔗废料、城市废料和林业废料。与其他可再生能源相比,丰富的生物质资源具有竞争优势。然而,该行业面临着各种限制和挑战,如高昂的处理成本、高耗电量和相关费用。要解决这些问题,研究可利用的生物质类型、生物质能源生产(废物变能源)的现有技术以及相关的环保动机、倡议和立法至关重要。本文分析了可用于能源生产的农业废弃物、将废弃物转化为能源的现有技术以及环境政策在农产品加工业中的作用。能源回收利用是一种可行的解决方案,包括利用农业废弃物发电和产生热能。探讨了几种技术,包括厌氧消化、气化、焚烧/燃烧和热解,每种技术都有优缺点。热化学工艺因其有效性、所需预处理最少、反应时间较短、可适应各种生物质原料和气候条件而受到重视。马来西亚政府实施的激励措施、倡议和政策为农产品加工业采用能源循环利用方法提供了指导。通过强调能源的可持续发展和推广绿色建筑倡议,该行业可以为实现更加可持续和环保的能源环境做出贡献。
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引用次数: 0
Enhancing solar hybrid system efficiency in Libya through PSO & flower pollination optimization 通过 PSO 和花朵授粉优化提高利比亚太阳能混合系统的效率
Pub Date : 2024-01-15 DOI: 10.37934/progee.27.1.2331
Ahmed Moh A Al Smin, Alkbir Munir Faraj Almabrouk, Sairul Izwan Safie, Mohd Al Fatihhi Mohd Szali Januddi, Mohd Fahmi Hussin, Abdulgader Alsharif
The integration and optimization of Concentrated Solar Power-Photovoltaic (CSP-PV) hybrid systems have become a focal point in the field of solar energy research and development. The fusion of the strengths from both forms of power generation in the CSP-PV hybrid system offers the potential to deliver affordable and manageable solar energy solutions. However, the key parameters of the CSP plant can vary in different situations. Taking these variations into account is crucial for optimizing the overall performance of the CSP-PV hybrid system and ensuring its adaptability to different scenarios. Therefore, there is a need for a method that can optimize all the main parameters of the CSP and the hybrid system at the same time. The maximum acquired energy from the CSP is 7 kWh with meeting the objective of Levelized Cost of Energy (LCOE). In this paper utilized the Flower Pollination Algorithm (FPA). method to globally optimize the CSP-PV Hybrid System. The experimental results prove the effectiveness of this method.
聚光太阳能-光伏(CSP-PV)混合系统的集成和优化已成为太阳能研发领域的一个焦点。CSP-PV 混合系统融合了两种发电形式的优势,为提供经济实惠、易于管理的太阳能解决方案提供了可能。然而,在不同的情况下,CSP 电站的关键参数会有所不同。考虑到这些变化对于优化 CSP-PV 混合系统的整体性能并确保其对不同情况的适应性至关重要。因此,需要一种能同时优化 CSP 和混合系统所有主要参数的方法。在满足平准化能源成本(LCOE)目标的前提下,从 CSP 获得的最大能量为 7 千瓦时。本文利用授粉算法(FPA)方法对 CSP-PV 混合系统进行了全局优化。实验结果证明了该方法的有效性。
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引用次数: 0
Efficient methylene blue dye removal using hybrid ZnO/Co/Cs photocatalyst beads 使用 ZnO/Co/Cs 混合光催化剂珠高效去除亚甲基蓝染料
Pub Date : 2024-01-15 DOI: 10.37934/progee.27.1.110
Ong Kwang Zhean, Mohd Fadhil Majnis, Mohd Azam Mohd Adnan, Suhanna Natalya Mohd Suhaimy
This study highlighted the developments of the hybrid photocatalytic system for wastewater treatment in the textile industry. Chitosan (Cs) and cobalt (Co) were introduced into the conventional catalyst zinc oxide (ZnO) to form the hybrid photocatalyst beads. Four different weight ratios of ZnO/Cs (1:1) and ZnO/Co/Cs (1:1:1, 1:2:1 and 2:1:1) beads were synthesized by the sol-gel method. The photocatalytic degradation properties of the hybrid ZnO/Co/Cs were investigated under visible light irradiation for methylene blue (MB) photodegradation. The study focused on the effect of ZnO/Co/Cs composition ratio, irradiation time and the amount of catalyst loading in the photoreactor for five hours of exposure time. The result was that the 1:1:1 ZnO/Co/Cs photocatalyst beads had the highest degradation rate compared to the other systems. Adding Co to the ZnO/Cs photocatalyst improved the photocatalytic activity by increasing the decolourization percentage of methylene blue
本研究重点介绍了用于纺织业废水处理的混合光催化系统的发展情况。在传统催化剂氧化锌(ZnO)中引入壳聚糖(Cs)和钴(Co),形成混合光催化剂珠。采用溶胶-凝胶法合成了四种不同重量比的 ZnO/Cs (1:1)和 ZnO/Co/Cs (1:1:1、1:2:1 和 2:1:1)珠子。研究了混合 ZnO/Co/Cs 在可见光照射下光催化降解亚甲基蓝(MB)的性能。研究重点是 ZnO/Co/Cs 成分比、辐照时间和光反应器中催化剂负载量对 5 小时辐照时间的影响。结果表明,与其他体系相比,1:1:1 ZnO/Co/Cs 光催化剂珠的降解率最高。在 ZnO/Cs 光催化剂中添加 Co 可提高亚甲基蓝的脱灰比例,从而改善光催化活性。
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引用次数: 0
Revenue/cost production sharing contract (psc) fiscal regime on marginal gas fields in Malaysia: Case study 马来西亚边际气田的收益/成本生产分成合同(psc)财政制度:案例研究
Pub Date : 2023-10-15 DOI: 10.37934/progee.26.1.1118
None Sumitra Muniandy, None Syuhaida Ismail, None Md Ezamudin Said
Despite the increasing global demand for natural gas, there are many marginal oil and gas fields that lie idle and are not developed mainly due to the uneconomic feasibility of the project. One of the main factors hindering the monetization of these small fields is the unfavourable fiscal conditions. This is the main reason why many potential marginal fields that do not meet the economic criteria required for commercial development are stranded. Thus, this paper aims at assessing the existing Revenue/Cost (R/C) Production Sharing Contract (PSC) fiscal regime on marginal gas fields in Malaysia via sensitivity and scenario analysis studies. It is found that reduction in cost of capital, tax rate or other PSC payments parameters helps to improve the NPV however the analysis shows the R/C tranches consists of cost recovery limit, excess cost recovery and profit-sharing percentage are the significant factors driving the cash flow.
尽管全球对天然气的需求不断增加,但仍有许多边缘油气田处于闲置状态,主要原因是项目的经济可行性不高。阻碍这些小油田货币化的主要因素之一是不利的财政条件。这就是为什么许多不符合商业开发所需经济标准的潜在边际油田陷入困境的主要原因。因此,本文旨在通过敏感性和情景分析研究,评估马来西亚边际天然气田现有的收入/成本(R/C)生产分成合同(PSC)财政制度。研究发现,降低资本成本、税率或其他PSC支付参数有助于提高NPV,但分析表明,由成本回收限额、超额成本回收和利润分享百分比组成的R/C部分是驱动现金流的重要因素。
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引用次数: 0
Marine hydrokinetic energy potential of Peninsular Malaysia by using hybrid site selection method 利用混合选址法研究马来西亚半岛的海洋水动能潜力
Pub Date : 2023-10-15 DOI: 10.37934/progee.26.1.110
None Nur Amira Nabilah, None Cheng Yee Ng, None Nauman Riyaz Maldar, None Fatin Khalida Abd Khadir
The exponential increase in global energy demand is a direct result of the rapid growth of the world's population and technological advancements. However, the use of fossil fuels to meet this demand has led to the issue of CO2 emission and global warming, which prompting nations to undertake mitigation plans for further negative repercussions. Seeing the fact that extensive usage of non-renewable energies is the root cause of these negative effects, renewable energies have become the focus of most research. On top of that too, the implementation of clean energy is urgent to achieve sustainable development. Located in Southeast Asia, Peninsular Malaysia is surrounded by the Strait of Malacca and the South China Sea, making it abundant in the source of hydrokinetic energy. Consequently, researchers have taken a keen interest in exploring marine renewable energy within the region. Coastal regions particularly, can significantly benefit from hydrokinetic energy. Henceforth, this study aims to provide a comprehensive approach to identify the optimal locations for marine hydrokinetic energy extraction in Peninsular Malaysia, considering all essential factors that influence decision-making.
全球能源需求的指数级增长是世界人口快速增长和技术进步的直接结果。然而,使用化石燃料来满足这一需求导致了二氧化碳排放和全球变暖的问题,这促使各国采取缓解计划,以防止进一步的负面影响。鉴于不可再生能源的广泛使用是这些负面影响的根本原因,可再生能源已成为大多数研究的焦点。除此之外,实施清洁能源是实现可持续发展的迫切需要。马来西亚半岛位于东南亚,被马六甲海峡和南海环抱,水动能来源丰富。因此,研究人员对探索该地区的海洋可再生能源产生了浓厚的兴趣。特别是沿海地区,可以显著受益于水动能。因此,本研究旨在提供一种综合的方法来确定马来西亚半岛海洋水动力能源开采的最佳地点,同时考虑到影响决策的所有重要因素。
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引用次数: 0
Evacuated tubes solar air collectors: A review on design configurations, simulation works and applications 真空管太阳能集热器:设计结构、仿真工作及应用综述
Pub Date : 2023-08-10 DOI: 10.37934/progee.25.1.1032
Nabila Sulaiman, Sany Izan Ihsan, Syed Noh Syed Abu Bakar, Zafri Azran Abdul Majid, Zairul Azrul Zakaria
One of the primary components of solar energy utilization systems is evacuated tube solar air collectors (ETSACs). The irradiance is absorbed by these collectors, which is then transformed into thermal energy at the absorbing surface before being transmitted to the air passing through the collectors. This type of collector outperforms flat plate collectors in terms of reducing heat loss through conduction and convection and also during cloudy days; thus, ETSACs are the most preferred collectors to be applied for space heating, crop drying, and industrial applications. This review focuses on a summary of design configurations, simulation works, and applications of ETSACs in order to understand the influence of the thermal performance of ETSACs so that these collectors can be applied more effectively. Studies on the use of nanofluids as thermal performance enhancers and phase change materials as thermal storage media can be considered to enhance the thermal performance of ETSACs.
真空管太阳能集热器是太阳能利用系统的主要组成部分之一。辐照度被这些集热器吸收,然后在吸收表面转化为热能,然后传输到通过集热器的空气中。这种类型的集热器优于平板集热器在减少热量损失方面,通过传导和对流,也在阴天;因此,etsac是应用于空间加热,作物干燥和工业应用的最优选集热器。本文对ETSACs的设计配置、模拟工作和应用进行了综述,旨在了解ETSACs热性能的影响,从而使ETSACs集热器能够更有效地应用。可以考虑利用纳米流体作为热性能增强剂和相变材料作为储热介质来提高etsac的热性能。
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引用次数: 1
Malaysia green residential buildings and factors affecting the willingness of public on buying green residential buildings 马来西亚绿色住宅及影响公众购买绿色住宅意愿的因素
Pub Date : 2023-08-10 DOI: 10.37934/progee.25.1.3343
Chin Yee Ha, Terh Jing Khoo, Soo Chin Teh
Green building has reduced the negative impact on natural environment which caused by construction activities. Commonly, these green building are built based on opinion and knowledge of construction players such as contractors, developer and engineer and their most critical point is to earn more return on investment, and the practicability and functionality of buildings. However, public is the consumer for green buildings, thus sometimes should listen to the voice out from public. In order to raise public demand for green building, this study is aimed to identify the factors affecting the willingness of public on buying green residential property. There is a rating system that Green Building Index (GBI) as a measurement standard to green building certification in Malaysia. A literature review was performed, followed by a questionnaire survey and a total of fifty-three valid responses are obtained through snowball sampling method. Apart from that, Cronbach’s alpha and mean score analysis were performed in this study. The results revealed that “improve indoor air quality”, “enhance occupant comfort and health” and “lower greenhouse gas emission” were the most important factors affecting public to buy the green residential property. The results of this study could contribute that young generation nowadays actually is most focus on own health and comfortable rather than cost since all the top three ranking is related with indoor environment quality. However, majority young generation respondent is also one of the limitations for this study.
绿色建筑减少了建筑活动对自然环境的负面影响。通常,这些绿色建筑是根据承包商、开发商和工程师等建筑参与者的意见和知识建造的,他们最关键的一点是获得更多的投资回报,以及建筑的实用性和功能性。然而,公众是绿色建筑的消费者,因此有时应该倾听公众的声音。为了提高公众对绿色建筑的需求,本研究旨在找出影响公众购买绿色住宅物业意愿的因素。马来西亚有绿色建筑指数(GBI)作为绿色建筑认证的衡量标准的评级体系。首先进行文献综述,然后进行问卷调查,通过滚雪球抽样法共获得53份有效问卷。除此之外,本研究还进行了Cronbach’s alpha和mean score分析。结果显示,“改善室内空气质素”、“提升住户舒适度和健康”及“降低温室气体排放”是影响市民购买绿色住宅物业的最重要因素。本研究的结果可以说明,现在的年轻一代实际上更关注自己的健康和舒适,而不是成本,因为前三名的排名都与室内环境质量有关。然而,年轻一代受访者居多也是本研究的局限性之一。
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引用次数: 0
Current status of green building development in Malaysia 马来西亚绿色建筑发展现状
Pub Date : 2023-08-10 DOI: 10.37934/progee.25.1.19
Chin Yee Ha, Terh Jing Khoo, Zheng Yik Koo
Terrible environmental conditions on Earth have warned us over the past decade. To avoid the current situation going further, many countries started to implement sustainable green building development. Sustainable green building development tends to preserve and conserve the environment by using sustainable green material, decrease of negative impact from construction industry and improve on the building life cost cycle. Although the number of green buildings increased compared to last century, but adoption of sustainable green building in the Malaysian construction industry is considered slow. Besides, sustainable green building development also concerns social and economic aspects. This study will analyze the current status of green building development in Malaysia. The study has reviewed articles pertinent to green building development from reputable science databases. The result obtained showed the current status of green building development is decreasing due to the impact of Pandemic COVID-19. Furthermore, the results also showed the number of green buildings in Malaysia is comparatively low. This study provided a benchmark for policy makers and construction key stakeholders about the current status of green building development in Malaysia which can be utilized as a guideline in promoting green building development.
在过去的十年里,地球上可怕的环境状况向我们发出了警告。为了避免现状愈演愈烈,许多国家开始实施可持续的绿色建筑发展。可持续的绿色建筑发展倾向于通过使用可持续的绿色材料,减少建筑业的负面影响,改善建筑物的生命周期成本来保护和保护环境。虽然与上个世纪相比,绿色建筑的数量有所增加,但马来西亚建筑业采用可持续绿色建筑的速度被认为是缓慢的。此外,绿色建筑的可持续发展还涉及到社会和经济方面。本研究将分析马来西亚绿色建筑发展的现状。该研究回顾了来自知名科学数据库的有关绿色建筑发展的文章。结果表明,受新冠肺炎疫情的影响,绿色建筑发展的现状正在下降。此外,结果还显示马来西亚的绿色建筑数量相对较少。本研究为政策制定者和建筑业关键利益相关者提供了一个关于马来西亚绿色建筑发展现状的基准,可以作为促进绿色建筑发展的指导方针。
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引用次数: 0
Risk management framework and practices for boiler operations in Malaysia 马来西亚锅炉操作的风险管理框架和实践
Pub Date : 2023-03-27 DOI: 10.37934/progee.23.1.2638
Mohd Fahmi Mohd Yusof, Roslina Mohammad
Boiler operations had a reputation for being one of the most hazardous work environments. Workers in the boiler plant face many safety risks due to the nature of the job. The work environment is often hot and noisy, consisting of several major equipment and operations involved in its process, and there is always a risk for crushing injuries, electrical shocks and burns, boiler fires and explosions, and contact with hazardous chemicals. Numerous activities performed in boiler operations are complex; these operations are hazardous and can cause accidents. This study aims to develop and propose risk management frameworks for working in a hazardous working environment at the boiler plant in Malaysia to prevent and control accidents and implement adequate safety and health management. Next, to analyze the risk factors and hazards for boiler operations based on the nature of work at the boilers in Malaysia using several methods: Bowtie Risk Assessment, Hazard and Operability Study (HAZOP), Failure Mode and Effect Analysis (FMEA). The result showed that the rate based on hazard sources in the boiler division has Extreme Risk levels (8%), High (14%), Medium (35%), and Low (43%). Risk assessment based on the type of hazard in the boiler division has risk levels ranging from high to the lowest score is the danger of Mechanical (25%), Electrical hazard (10%), chemical hazards (6%), and physical hazards (59%). The developed risk management framework with enhanced risk assessment techniques may solve the integration of sustainability aspects in boiler operations safety and risk management.
锅炉操作被认为是最危险的工作环境之一。由于锅炉厂的工作性质,工人面临着许多安全隐患。工作环境通常是炎热和嘈杂的,包括几个主要的设备和操作,在其过程中,总是有压伤、电击和烧伤、锅炉火灾和爆炸以及接触危险化学品的危险。在锅炉运行中执行的许多活动是复杂的;这些操作是危险的,可能会导致事故。本研究旨在制定和提出在马来西亚锅炉厂危险工作环境中工作的风险管理框架,以预防和控制事故,并实施适当的安全和健康管理。其次,根据马来西亚锅炉的工作性质,采用Bowtie风险评估、危害和可操作性研究(HAZOP)、失效模式和影响分析(FMEA)等几种方法,分析锅炉运行的风险因素和危害。结果表明,锅炉分区的危险源危险率分为极端危险度(8%)、高危险度(14%)、中危险度(35%)和低危险度(43%)。基于锅炉部门危害类型的风险评估有从高到低的风险等级,分别是机械危害(25%)、电气危害(10%)、化学危害(6%)和物理危害(59%)。开发的风险管理框架和改进的风险评估技术可以解决锅炉运行安全和风险管理中可持续性方面的整合问题。
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引用次数: 0
Barriers to green building implementation in Malaysia: A systematic review 马来西亚实施绿色建筑的障碍:系统回顾
Pub Date : 2023-03-27 DOI: 10.37934/progee.24.1.1121
Chin Yee Ha, Terh Jing Khoo, Jia Xuan Loh
In recent years, green building has been a trend in the world. Green building in Malaysia is still lagging in terms of development in green building. The construction industry has contributed the greatest percentage of greenhouse gas emissions. In order to reduce this issue, the increase in implementing green buildings is a concern among different construction stakeholders. The aim of this study is to investigate the barriers to implementing green buildings in Malaysia. A systematic review was used to achieve the research aim. A PRISMA protocol was used to present the systematic review. The systematic literature review was conducted between 2018 and 2022, and a total of 18 articles were analyzed. In the process, Scopus and Google Scholar databases were used to find the pertinent articles. In this study, the barrier the green building implementation in Malaysia were identified and categorized into several barriers related to economic, technology and training, knowledge, financial and political aspects. The highlighted key barriers contributed to both industry and government increasing the implementation of green building in Malaysia.
近年来,绿色建筑在世界范围内已成为一种趋势。马来西亚的绿色建筑在绿色建筑的发展方面仍然落后。建筑行业对温室气体排放的贡献率最大。为了减少这一问题,增加绿色建筑的实施是不同建筑利益相关者关注的问题。本研究的目的是调查在马来西亚实施绿色建筑的障碍。为了达到研究目的,采用了系统综述法。采用PRISMA方案进行系统评价。系统文献综述于2018 - 2022年间进行,共分析18篇文章。在此过程中,使用Scopus和Google Scholar数据库查找相关文章。在本研究中,马来西亚绿色建筑实施的障碍被确定并分类为与经济,技术和培训,知识,金融和政治方面相关的几个障碍。突出的主要障碍有助于行业和政府在马来西亚增加绿色建筑的实施。
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引用次数: 4
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Progress in Energy and Environment
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