Potensi penurunan konsumsi energi di DKI Jakarta dengan menggunakan rumah ramah lingkungan

Background: With the rapid development of DKI Jakarta, it is estimated that the energy demand will increase. With the current trend of environmentally friendly housing concepts, a decrease in energy consumption is expected if people are willing to switch to eco-friendly homes or use eco-friendly components such as LED lights, water-saving showers, or solar panels. There are several inhibiting factors for people to use eco-friendly homes, including willingness to pay, preferences regarding eco-friendly homes, reluctance towards eco-friendly homes, and environmental awareness. The aim of this research is to understand the understanding, preferences, and reluctance of the public regarding eco-friendly homes, analyze the potential of DKI Jakarta residents to move to eco-friendly homes or their components, and analyze the potential decrease in energy usage in DKI Jakarta through the use of eco-friendly homes and their components. Methods: This research was conducted using a quantitative approach with qualitative and quantitative methods. The analysis method in this study is descriptive analysis and energy consumption reduction potential calculation. Findings: The results of this study show that the majority of DKI Jakarta residents already understand eco-friendly homes and have preferences to move despite some reluctance factors. Conclusion: Moreover, the majority of DKI Jakarta residents (more than 50%) have the potential to use eco-friendly homes and switch to water, electricity, and construction material-saving components. The potential decrease in energy consumption in DKI Jakarta in the future is predicted to reach over 15% if moving to eco-friendly homes altogether and potentially reducing energy needs by more than 15% in water consumption and over 30% in electricity consumption. These results are obtained by combining the desire to move and the potential energy savings from each component

Assesing wave power potential in Nkhatabay, Malawi

Background: This thesis is an investigation of the wave power resource on Lake Malawi, precisely Nkhatabay, focusing on the spatial distribution of wave power of the said places exposed to the highest wave power. Findings: The main objective of this study was to determine the wave potential of Lake Malawi in Malawi in order to allow design and usage of wave energy in Malawi. Methods: The study methodology employed to achieve this main objective entails an analysis of measured wave data recorded at wave recording station along Lake Malawi. Conclusion: The analysis provided a general description of wave power at the location for which wave data exist. From this analysis,it was found that Nkhatabay is exposed to average wave power of approximately 202 KW/m annually. Data was collected from the Department of Climate Change and Meteorological Services (DCCMS), who have implanted a Lake buoy at Usisya in Nkhatabay. The data gathered was analyzed using Microsoft excel and R studio to come up with graphs for proper description of results. Power calculations were conducted as well to determine the output of turbines used with respect to the wave data observed

Pembentukan hidrogen dari koh menggunakan katalis aluminium foil dari limbah bungkus rokok

Background: As we know, at this time the State of Indonesia is experiencing an energy crisis due to the increasing number of population which has a direct effect on fuel consumption. Hydrogen is very likely to be an alternative fuel for the future. Findings: The hydrogen production process can be carried out biologically or chemically. Chemical production of hydrogen is to use alkaline aluminum to be used as an alkaline aluminum fuel cell. An alkaline-air aluminum fuel cell is a series of aluminum anodes in an alkaline solution and oxygen gas in the cathode that will produce electrical energy. Methods: This research tries to utilize aluminum foil waste (Cigarette Wrapper) as a source of aluminum for hydrogen production. For this reason, research into the production of hydrogen gas from aluminum foil waste using a KOH catalyst. Hydrogenation is done by the process of Hydrognation with temperatures of 25 ° C, 30 ° C, and 40 ° C, with the activator used is Potassium Hydroxide with concentrations of 1M, 2M, 3M, and 4M. Conclusion: The results showed that at 25 ° C with a concentration of 1M there was a volume weight of 286.04 ml. The 2M concentration contained a volume weight of 165.31. 3M concentrations have a volume weight of 118.80 ml. The 4M concentration contained a volume weight of 112.90 ml. At a temperature of 30 ° C with a concentration of 1M there is a volume weight of 217.19 ml. The 2M concentration contained a volume weight of 271.22 ml. 3M concentration contained a volume weight of 273.48 ml. 4M concentration was 272.79 ml. At 40 ° C with a concentration of 1M there is a volume weight of 927 ml. The 2M concentration contained a volume weight of 640.9 ml. 3M concentration contained a volume weight of 453.6 ml. and the 4M concentration contained a volume weight of 299.7 ml. The best results are shown in KOH Activator temperature 40 ° C with a volume weight of 299.7 ml and a concentration of 4M

Profil dan analisa risiko transisi pada level global

oai:ojs2.journal-iasssf.com:article/622Background: The driving factor for world transition risk is the agreement on a commitment to a net zero carbon economy in order to fulfill agreements between countries that are part of the Paris Agreement, for example levies on carbon or an emissions trading system (ETS). The four risks driving the global transition are Policy, Technology, Consumer Preferences/Market Sentiment. Transition risk has weak valuation validity because it is only based on the principles of each country's commitment, such as the Net Zero Emissions commitment in the Paris Agreement. Transition risks are systemic, for example economic sector risks that disrupt business globally, the occurrence of stranded assets, requiring wise investment, rising commodity and energy prices. The global level transition risk profile for (policies) in the primary energy mix with the NZE 2050 scenario has a greater projection of the use of New Renewable Energy/EBT for (Biomass, Wind, Hydro and Geothermal) compared to the current policy which still uses fossil energy. Methods: This research uses qualitative methods through literature analysis and literature research. Findings: The risk profile of the global (technology) transition from Global Power Generation to EBT with the Further Acceleration and Achieved Commitment (Solar, Wind Offshore and Onshore) scenarios in 2050 has a greater projected use of EBT compared to Fading Momentum and Current Trajectory. Global level Transition Risk Profile for (Investor Sentiment) in global energy sector investment with the Further Acceleration and Achieved Commitment (Power T&D, Decarbonization technology and Power|renewables) scenarios in 2050 has a projected percentage of total investment that is greater than the Fading Momentum scenario and Current Trajectory. The transition risk scores of all countries according to the Europan Investment Bank (EIB) paint a different picture. Countries that export fossil fuels are those most at risk. Conclusion: High-income countries, which consume a large share of the world's resources and produce significant emissions, generally face higher risks from the transition to a low-carbon world economy. Global risk analysis for the first impact of all driving factors (policy, technology, investor and consumer sentiment) is at a severe impact with a very close chance or probability of occurring. However, if all mitigation is carried out well and correctly, consistently and all countries fulfill the same commitments (for example, complying with the Paris Agreement commitments), then the residual impacts produced within a certain time will be small with the possibility of this occurring and a shift in the risk rating from extreme to moderate

Studi analisis manfaat limbah fly ash pada industri bahan baku semen

Background: The demand for electrical energy and dependence on coal energy sources, while the coal combustion process does not burn out, resulting in waste in the form of fly ash. The utilization of fly ash waste in the cement industry can potentially cause environmental impacts in the form of air pollution. Therefore, the concept of sustainability of fly ash waste utilization as an alternative raw material in the cement industry is needed. The objectives of this study are to analyze the potential environmental impacts on the utilization of fly ash waste into cement, analyze the financial benefits for the cement industry, and determine alternative sustainability of fly ash waste utilization based on the concept of clean production. Methods: The research method used is quantitative method with AHP method. Findings: The results showed that particulate concentrations in fly ash waste utilization activities did not exceed quality standards but had the potential to cause environmental impacts with a 24-hour period distribution of 219 µg/m3, while the highest annual period was 67.2 µg/m3. Utilization of fly ash waste can reduce the use of gypsum and trass raw materials by up to 3.2%. The financial benefits received by the cement industry are material cost efficiency of Rp6,052,872,369.02 in 2018 and Rp32,730,142,087.09 in 2022. Conclusion: The concept of clean production as an alternative to the sustainability of fly ash waste utilization in the cement industry of PT ABC is to implement the recycle of particulates captured by DC and EP