scholarly journals Value Proposition of Different Methods for Utilisation of Sugarcane Wastes

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5483
Author(s):  
Ihsan Hamawand ◽  
Wilton da Silva ◽  
Saman Seneweera ◽  
Jochen Bundschuh

There are four main waste products produced during the harvesting and milling process of sugarcane: cane trash, molasses, bagasse and mill mud–boiler ash mixture. This study investigates the value proposition of different techniques currently not being adopted by the industry in the utilisation of these wastes. The study addresses the technical challenges and the environmental impact associated with these wastes and comes up with some recommendations based on the recent findings in the literature. All the biomass wastes such as bagasse, trash (tops) and trash (leaves) have shown great potential in generating higher revenue by converting them to renewable energy than burning them (wet or dry). However, the energy content in the products from all the utilisation methods is less than the energy content of the raw product. This study has found that the most profitable and challenging choice is producing ethanol or ethanol/biogas from these wastes. The authors recommend conducting more research in this field in order to help the sugar industry to compete in the international market.

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4054 ◽  
Author(s):  
Youssef Benchaabane ◽  
Rosa Elvira Silva ◽  
Hussein Ibrahim ◽  
Adrian Ilinca ◽  
Ambrish Chandra ◽  
...  

Remote and isolated communities in Canada experience gaps in access to stable energy sources and must rely on diesel generators for heat and electricity. However, the cost and environmental impact resulting from the use of fossil fuels, especially in local energy production, heating, industrial processes and transportation are compelling reasons to support the development and deployment of renewable energy hybrid systems. This paper presents a computer model for economic analysis and risk assessment of a wind–diesel hybrid system with compressed air energy storage. The proposed model is developed from the point of view of the project investor and it includes technical, financial, risk and environmental analysis. Robustness is evaluated through sensitivity analysis. The model has been validated by comparing the results of a wind–diesel case study against those obtained using HOMER (National Renewable Energy Laboratory, Golden, CO, United States) and RETScreen (Natural Resources Canada, Government of Canada, Canada) software. The impact on economic performance of adding energy storage system in a wind–diesel hybrid system has been discussed. The obtained results demonstrate the feasibility of such hybrid system as a suitable power generator in terms of high net present value and internal rate of return, low cost of energy, as well as low risk assessment. In addition, the environmental impact is positive since less fuel is used.


2021 ◽  
Vol 13 (1) ◽  
pp. 396
Author(s):  
Norasikin Ahmad Ludin ◽  
Nurfarhana Alyssa Ahmad Affandi ◽  
Kathleen Purvis-Roberts ◽  
Azah Ahmad ◽  
Mohd Adib Ibrahim ◽  
...  

Sustainability has been greatly impacted by the reality of budgets and available resources as a targeted range of carbon emission reduction greatly increases due to climate change. This study analyses the technical and economic feasibility for three types of solar photovoltaic (PV) renewable energy (RE) systems; (i) solar stand-alone, a non-grid-connected building rooftop-mounted structure, (ii) solar rooftop, a grid-connected building rooftop-mounted structure, (iii) solar farm, a grid-connected land-mounted structure in three tropical climate regions. Technical scientific and economic tools, including life cycle assessment (LCA) and life cycle cost assessment (LCCA) with an integrated framework from a Malaysian case study were applied to similar climatic regions, Thailand, and Indonesia. The short-term, future scaled-up scenario was defined using a proxy technology and estimated data. Environmental locations for this scenario were identified, the environmental impacts were compared, and the techno-economic output were analysed. The scope of this study is cradle-to-grave. Levelised cost of energy (LCOE) was greatly affected due to PV performance degradation rate, especially the critical shading issues for large-scale installations. Despite the land use impact, increased CO2 emissions accumulate over time with regard to energy mix of the country, which requires the need for long-term procurement of both carbon and investment return. With regards to profitably, grid-connected roof-mounted systems achieve the lowest LCOE as compared to other types of installation, ranging from 0.0491 USD/kWh to 0.0605 USD/kWh under a 6% discounted rate. A simple payback (SPB) time between 7–10 years on average depends on annual power generated by the system with estimated energy payback of 0.40–0.55 years for common polycrystalline photovoltaic technology. Thus, maintaining the whole system by ensuring a low degradation rate of 0.2% over a long period of time is essential to generate benefits for both investors and the environment. Emerging technologies are progressing at an exponential rate in order to fill the gap of establishing renewable energy as an attractive business plan. Life cycle assessment is considered an excellent tool to assess the environmental impact of renewable energy.


2021 ◽  
Vol 13 (23) ◽  
pp. 13261
Author(s):  
Alberto-Jesus Perea-Moreno

Energy is a very important resource for the development of the residential and industrial sectors, and it should be used with high efficiency, low environmental impact, and at the lowest possible cost [...]


2021 ◽  
pp. 4-6
Author(s):  
M. Renuka Devi ◽  
G. A. HEMA

A green product as one that has less of an environmental impact or is less detrimental to human health that the traditional product equivalent. Now-a-days, peoples are becoming more conscious about health and environment. Green products will be produced by using organic fertilizers, without using any pesticides, insecticides, any inorganic fertilizers, or toxic elements. So, the demand for such products has doubled when compared to the last ten years. The changing climatic condition is not just a talk but has become an international concern. This awareness is greatly affecting consumer's purchasing decision. Even marketers are taking measures to minimize the production of harmful wastes. In the present scenario, brands producing green products use green marketing to communicate their value proposition to the market. Green products will be healthier in nature and safe to use.In this present study, to make a research on green products marketing among the consumers and their perspective.


2020 ◽  
Vol 17 (2) ◽  
pp. 291-315
Author(s):  
Rudy Kahsar ◽  

Renewable energy technology is often seen as a positive expression of technology, meeting energy needs with minimal environmental impact. But, by integrating nature (e.g., wind and sunlight) with the ordering of the electric grid, renewables silently convert that nature into what Martin Heidegger referred to as standing reserve—resources of the technological commodity chain to be ordered, controlled, converted, and consumed on demand. However, it may be possible to mitigate the downsides of this process through a transition to more decentralized, local sources of renewable energy operations and management that maintain awareness of the ways in which energy is generated and distributed.


Author(s):  
Stephan Reinhold ◽  
Sara Dolnicar

A business model is like an ultrasound for businesses: it provides – from the outside – detailed insight into six vital elements of a business which explain their functioning (Chapter 3). Each peer-to-peer accommodation network is slightly different and requires an independent business model analysis. Here we analyze the business model of Airbnb because it is the international market leader in commercial peer-to-peer accommodation trading and a model other platforms aspire to. We focus on value proposition, creation, communication, and transfer. The other two elements (value capture and dissemination) are discussed in Chapter 5.


Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4509 ◽  
Author(s):  
Janusz Adamczyk ◽  
Robert Dylewski

Energy saving is at the heart of sustainable development in the context of climate change. Saving energy is not only the amount of energy that we save, but also reducing emissions of pollutants to the atmosphere, as well as reducing the consumption of energy resources that are used to produce energy. Reducing pollutant emissions and the use of energy resources can be achieved by increasing the use of renewable energy sources, but at present, this method of obtaining energy in the world is not representative. It should be noted that renewable energy devices throughout the life cycle generate environmental impact. Similar to this situation, the building’s thermo-modernization, which is focused on reducing the pressure on the environment of the building’s user, also has an impact on the environment throughout the building’s life cycle. Determining this environmental impact and ecological or economic benefits or costs is the purpose of the following article. Thermo-modernization of the building, for the purposes of the article, is understood as thermal insulation of walls and replacement of the heat source for heating the building and preparation of hot utility water. The need to replace the heat source with a much more ecological one results in Poland from provincial legal regulations announced by virtue of a resolution. In the study, data from the Ecoinvent data library included in the SimaPro computer program was used for the LCA (Life Cycle Assessment) analysis. As a result of thermo-modernization of the representative buildings, large ecological benefits were obtained, while economic costs remain at a high level.


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