scholarly journals INNOVATIVE TECHNOLOGY OF REACTIVE ENERGY COMPENSATION FOR IMPROVING SHIP'S EEDI

2020 ◽  
pp. 4-15
Author(s):  
Denis Lisovenko ◽  
Sergiy Dudko
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Efficient ◽  
Operating Conditions ◽  
Innovative Technology ◽  
Gas Emissions ◽  
Innovative Technologies ◽  
Energy Compensation ◽  
Energy Efficiency Design Index

Global warming, caused mainly by greenhouse gas emissions, prompted the world community to sign the Kyoto Protocol in 1997. The regulation of greenhouse gas emissions and related economic activities have ceased to be the prerogative of national authorities and become the subject of international agreements. Due to the largest air pollutants from the world's oceans are ships, the International Maritime Organization (IMO) adopted in 2003 Resolution А.962 (23): "IMO Policy and Practice on Reducing Greenhouse Gas Emissions from Ships", and determined that it is possible to achieve significant reductions in greenhouse gas emissions from ships through the adoption of technical and operational measures. This suggests that ships need to be more energy efficient, operating conditions are well thought out, and a clear methodology for assessing ships in terms of greenhouse gas emissions. The estimated energy efficiency factor of the vessel is the Energy Efficiency Design Index (EEDI), which is calculated according to a formula developed by IMO with the possibility of improving it through innovative energy efficient technologies. Since the entry into force of the IMO resolution, mainly work is underway to improve the EEDI based on existing innovative technologies in various categories. Progress does not stand still, but the list of new innovative technologies for energy efficiency categories has not expanded. The presented article is devoted to the development of innovative technology of category C, to improve the energy efficiency index of the ship structure. This technology can used on its own, as well as an additional tool to extend the capabilities of existing energy efficiency technologies. In addition, the innovative technology for reactive energy compensation allows improving the EEDI and environmental performance of already operating vessels, through their simple modernization during planned repairs. Keywords. Energy Efficiency Design Index (EEDI), innovative energy saving technologies, power factor correction

scholarly journals Conducting Life Cycle Assessments (LCAs) to Determine Carbon Payback: A Case Study of a Highly Energy-Efficient House in Rural Alaska

Energies ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1732 ◽  
Author(s):  
Yasmeen Hossain ◽  
Tom Marsik
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Efficient ◽  
Interior Space ◽  
Gas Emissions ◽  
Rural Alaska ◽  
Minimum Requirements

Buildings are responsible for a large portion of global greenhouse gas emissions. While energy efficiency features can significantly reduce the greenhouse gas emissions during a building’s operational stage, extra materials and processes associated with these features typically involve higher greenhouse gas emissions during the construction phase. In order to study this relationship, a case study of a highly energy-efficient house in rural Alaska was performed. For the purposes of this case study, a theoretical counterpart home was designed that has the same interior space, but insulation values close to the code minimum requirements. Using computer simulations, a Life Cycle Assessment (LCA) was performed for the case study home as well as its conventional counterpart. The extra greenhouse gas emissions associated with the construction of the case study home were compared to the annual savings in greenhouse gas emissions achieved thanks to the energy efficiency features, and carbon payback was calculated. The carbon payback was calculated to be just over three years, which is only a small fraction of the life of the building. The results of this study show that despite higher greenhouse gas emissions during the construction phase, highly energy-efficient homes can play an important role in addressing climate change.

<i>Modeling of photosynthetic aeration for energy-efficient wastewater treatment and reduced greenhouse gas emissions</i>

2017 ◽  
Author(s):  
Brendan T Higgins ◽  
Matthew B. Paddock ◽  
Simon Staley ◽  
Shannon J. Ceballos ◽  
Jean S. VanderGheynst
Keyword(s):  
Wastewater Treatment ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Efficient ◽  
Gas Emissions

scholarly journals Smart Solutions for Sustainable Cities—The Re-Coding Experience for Harnessing the Potential of Urban Rooftops

2020 ◽  
Vol 10 (20) ◽  
pp. 7112
Author(s):  
Valeria Todeschi ◽  
Guglielmina Mutani ◽  
Lucia Baima ◽  
Marianna Nigra ◽  
Matteo Robiglio
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Geographical Information Systems ◽  
Urban Landscape ◽  
Geographical Information ◽  
Renewable Energy Resources ◽  
Gas Emissions ◽  
The City

Urban rooftops are a potential source of water, energy, and food that contribute to make cities more resilient and sustainable. The use of smart technologies such as solar panels or cool roofs helps to reach energy and climate targets. This work presents a flexible methodology based on the use of geographical information systems that allow evaluating the potential use of roofs in a densely built-up context, estimating the roof areas that can be renovated or used to produce renewable energy. The methodology was applied to the case study of the city of Turin in Italy, a 3D roof model was designed, some scenarios were investigated, and priorities of interventions were established, taking into account the conditions of the urban landscape. The applicability of smart solutions was conducted as a support to the review of the Building Annex Energy Code of Turin, within the project ‘Re-Coding’, which aimed to update the current building code of the city. In addition, environmental, economic, and social impacts were assessed to identify the more effective energy efficiency measures. In the Turin context, using an insulated green roof, there was energy saving in consumption for heating up to 88 kWh/m2/year and for cooling of 10 kWh/m2/year, with a reduction in greenhouse gas emissions of 193 tCO2eq/MWh/year and 14 tCO2eq/MWh/year, respectively. This approach could be a significant support in the identification and promotion of energy efficiency solutions to exploit also renewable energy resources with low greenhouse gas emissions.

Applying optimization techniques to improve of energy efficiency and GHG (greenhouse gas) emissions of wheat production

Energy ◽  
2016 ◽  
Vol 103 ◽  
pp. 672-678 ◽  
Author(s):  
Ashkan Nabavi-Pelesaraei ◽  
Homa Hosseinzadeh-Bandbafha ◽  
Peyman Qasemi-Kordkheili ◽  
Hamed Kouchaki-Penchah ◽  
Farshid Riahi-Dorcheh
Keyword(s):  
Energy Efficiency ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Optimization Techniques ◽  
Gas Emissions ◽  
Wheat Production
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