Transport sector energy use and carbon emissions: a study on sectoral fiscal policies

2020 ◽  
Vol 5 (3) ◽  
pp. 17-30
Author(s):  
Işıl Selçuk ◽  
Altuğ Köktaş
Keyword(s):  
Carbon Emissions ◽  
Energy Use ◽  
Transport Sector ◽  
Fiscal Policies

Sektor energetyczny na całym świecie w dużej mierze opiera się na paliwach kopalnych, co skutkuje ciągłym wzrostem emisji dwutlenku węgla na skalę światową. Jedną z najważniejszych przyczyn wzrostu emisji jest sektor transportu, którego rozwój jest powiązany z procesami globalizacji. Rozwój transportu lądowego, morskiego i lotniczego wraz z handlem międzynarodowym i zwiększonym zużyciem energii powoduje problemy środowiskowe. W związku z tym szacuje się, że jedna czwarta całkowitej emisji dwutlenku węgla pochodzi obecnie z sektora transportu. W tym kontekście, w celu zwalczania problemów środowiskowych, takich jak globalne ocieplenie i zmiany klimatyczne w skali międzynarodowej, wdrażane są takie inicjatywy, jak porozumienie klimatyczne z Paryża, a także zalecana jest polityka środowiskowa mająca na celu zmniejszenie ilości emisji. Celem niniejszego opracowania jest analiza polityki środowiskowej, która była szeroko omawiana w literaturze, pod kątem polityki fiskalnej. W tym kontekście omówiono narzędzia polityki fiskalnej, takie jak podatki, dotacje, zachęty i przepisy specyficzne dla sektora transportu. Niniejsze badanie, w którym zastosowano metodę opisową, dowodzi, że praktyki polityki fiskalnej mogą być skuteczną metodą zmniejszania ilości emisji dwutlenku węgla.

scholarly journals Thermal and Photocatalytic Performance of Unsaturated Polyester Resins Modified with TiO2 Nanoparticles as Panel Bodies for Vehicles

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2036
Author(s):  
Miren Blanco ◽  
Cristina Monteserín ◽  
Nerea Uranga ◽  
Estíbaliz Gómez ◽  
Estíbaliz Aranzabe ◽  
...  
Keyword(s):  
Tio2 Nanoparticles ◽  
Energy Use ◽  
Near Infrared ◽  
Uv Light ◽  
Unsaturated Polyester ◽  
Curing Kinetics ◽  
Pollutant Emissions ◽  
Transport Sector ◽  
Scanning Calorimetry ◽  
Photocatalytic Effect

The transport sector is the fastest growing contributor to climate emissions and experiences the highest growth in energy use. This study explores the use of TiO2 nanoparticles for obtaining photocatalytic nanocomposites with improved infrared reflectance properties. The nanocomposites were prepared by dispersing 0–20 wt% of TiO2 nanoparticles in an unsaturated polyester resin. The effect of TiO2 on the curing kinetics was studied by differential scanning calorimetry, showing a significant delay of the curing reactions. The thermal reflectance of the modified resins was characterized by UV-Vis-NIR spectrophotometry, measuring total solar reflectance (TSR). The TiO2 greatly increased the TSR of the resin, due to the reflectance properties of the nanoparticles and the change in color of the modified resin. These nanocomposites reflect a significant part of near-infrared radiation, which can contribute to a reduction of the use of heating, ventilation, and air conditioning. Moreover, the photocatalytic effect of the TiO2 modified nanocomposites was studied by monitoring the degradation of an organic model contaminant in an aqueous medium under UV light, and the reusability of the nanocomposites was studied with 5 cycles. The developed nanocomposites are proposed as a solution for reducing global warming and pollutant emissions.

Towards Optimizing Building Energy Use to Reduce Electric System Carbon Emissions

2010 ◽  
Author(s):  
Erik M. Greensfelder ◽  
Gregor P. Henze ◽  
Vincent J. Cushing
Keyword(s):  
Carbon Emissions ◽  
Energy Use ◽  
Strong Relationship ◽  
Temporal Variations ◽  
Simple Relationship ◽  
System Load ◽  
Electric System ◽  
Plant Emissions ◽  
Building Operation ◽  
Future Work

In spite of heightened interest in anthropogenic climate change, little attention has been paid to optimizing a building’s carbon emissions at the source. Most work in building efficiency has assumed that generating plant carbon emissions are constant at their long-term average values. This study sought to improve our understanding of the temporal variations in carbon emissions on a diurnal time scale and their relation to electric system dispatch and load in order to motivate future work in optimizing building operation to reduce carbon emissions. Hourly fossil fuel plant emissions and load data, available from the EPA, were used to characterize power system performance for four US locations (IL, NY, TX, and CA). The study had set out with a hypothesis hoping to find a simple relationship between electric system load and emissions. It was found that there is a significant correlation between increased system load and decreased emissions rates, yet this correlation is not easily defined. During high load conditions, emissions reductions are related to the increased use of gas generators, or may be related to operating plants at more efficient part load ratios. The work conducted in this study shows that, while more complex than hoped for, there is indeed a strong relationship between electric system load and carbon emissions rates.

scholarly journals Design and Pinch Analysis of a GFT Process for Production of Biojet Fuel from Biomass and Plastics

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6035
Author(s):  
Alejandro López-Fernández ◽  
David Bolonio ◽  
Isabel Amez ◽  
Blanca Castells ◽  
Marcelo F. Ortega ◽  
...  
Keyword(s):  
Energy Demand ◽  
Energy Use ◽  
Cooling Water ◽  
Calorific Value ◽  
Transport Sector ◽  
Selling Price ◽  
Pinch Analysis ◽  
Steam Generation ◽  
Fischer Tropsch ◽  
Fuel Density

Environmental problems are frequently related to energy use, estimated to grow at 1.6% per year until 2035. The transport sector accounts for 30% of energy demand and aviation is growing around 2.6% per year. Thus, low-emissions policies promote the use of sustainable aviation fuels. This work simulates a gasification and Fischer-Tropsch process to obtain biojet fuel from biomass and plastic waste. Syngas obtained through cogasification is purified by amine scrubbing and subjected to a Fischer-Tropsch process to produce hydrocarbons, which are upgraded for optimal fuel properties. Pinch analysis is applied to minimize energy usage, while Rankine cycles and a cooling tower are designed to cover the demand of electricity and cooling water. Results show that mass yields of the process towards biofuels are 13.06%, with an output of 1697.45 kg/h of biojet fuel. Density, kinematic viscosity, pour and flammability points and the lower calorific value of the biojet fuel comply with the ASTM D7566 standard. Pinch analysis allows to reduce 41.58% and 100% of cooling and heating demands, respectively, using biomass as renewable energy for heating. Moreover, steam generation covers 38.73% of the required electricity. The produced biojet fuel emits 20.14 gCO2eq/MJ and has a minimum selling price of 1.37 EUR/L.

scholarly journals Alternative and Transitional Energy Sources for Urban Transport

2020 ◽  
pp. 586-596 ◽  
Author(s):  
Dmitriy Ya. Rozhko
Keyword(s):  
Energy Consumption ◽  
Carbon Emissions ◽  
Urban Areas ◽  
Alternative Energy ◽  
Negative Impact ◽  
Urban Transport ◽  
Transport Sector ◽  
Energy Sources ◽  
Political Factors ◽  
Alternative Energy Sources

In urban areas, the transport sector is one of the main sources of significant energy consumption and carbon emissions. Although diesel and gasoline are still the main sources of energy used in urban transport, more and more attention is now being paid to alternative and transitional sources of energy, as they are renewable and have less negative impact on the environment. However, the successful use of alternative energy sources can be hindered by various technical, economic and political factors. This article discusses the latest literature on alternative and transitional energy sources in order to understand the possibility of their use in urban transport at present, as well as the possibility of introducing these sources in the future

scholarly journals The Impact of Climate Change on the Value of Growing Maize as a Biofuel

2020 ◽  
Vol 4 (1) ◽  
pp. 13-26
Author(s):  
Sally Olasogba ◽  
Les DUCKERS
Keyword(s):  
Climate Change ◽  
Carbon Footprint ◽  
Carbon Emissions ◽  
Energy Use ◽  
Farm Management ◽  
Energy Output ◽  
Net Energy ◽  
Primary Concern ◽  
Impact Of Climate Change ◽  
The Impact

Abstract: Aim: According to COP23, Climate Change threatens the stability of the planet’s ecosystems, with a tipping point believed to be at only +2°C.  With the burning of fossil fuels, held responsible for the release of much of the greenhouse gases, a sensible world- wide strategy is to replace fossil fuel energy sources with renewable ones. The renewable resources such as wind, hydro, geothermal, wave and tidal energies are found in particular geographical locations whereas almost every country is potentially able to exploit PV and biomass. This paper examines the role that changing climate could have on the growing and processing of biomass. The primary concern is that future climates could adversely affect the yield of crops, and hence the potential contribution of biomass to the strategy to combat climate change. Maize, a C4 crop, was selected for the study because it can be processed into biogas or other biofuels. Four different Nigerian agricultural zones growing maize were chosen for the study. Long-term weather data was available for the four sites and this permitted the modelling of future climates. Design / Research methods: The results of this study come from modelling future climates and applying this to crop models. This unique work, which has integrated climate change and crop modelling to forecast yield and carbon emissions, reveals how maize responds to the predicted increased temperature, change in rainfall, and the variation in weather patterns. In order to fully assess a biomass crop, the full energy cycle and carbon emissions were estimated based on energy and materials inputs involved in farm management: fertilizer application, and tillage type. For maize to support the replacement strategy mentioned above it is essential that the ratio of energy output to energy input exceeds 1, but of course it should be as large as possible. Conclusions / findings: Results demonstrate that the influence of climate change is important and in many scenarios, acts to reduce yield, but that the negative effects can be partially mitigated by careful selection of farm management practices. Yield and carbon footprint is particularly sensitive to the application rate of fertilizer across all locations whilst climate change is the causal driver for the increase in net energy and carbon footprint at most locations. Nonetheless, in order to ensure a successful strategic move towards a low carbon future, and sustainable implementation of biofuel policies, this study provides valuable information for the Nigerian government and policy makers on potential AEZs to cultivate maize under climate change. Further research on the carbon footprint of alternative bioenergy feedstock to assess their environmental carbon footprint and net energy is strongly suggested. Originality / value of the article: This paper extends the review on the impact of climate change on maize production to include future impacts on net energy use and carbon footprint using a fully integrated assessment framework. Most studies focus only on current farm energy use and historical climate change impact on farm GHG emissions.   

scholarly journals Understanding driving patterns of carbon emissions from the transport sector in China: evidence from an analysis of panel models

2019 ◽  
Vol 21 (6) ◽  
pp. 1307-1322 ◽  
Author(s):  
Danting Lin ◽  
Lanyi Zhang ◽  
Cheng Chen ◽  
Yuying Lin ◽  
Jiankai Wang ◽  
...  
Keyword(s):  
Carbon Emissions ◽  
Transport Sector ◽  
Panel Models ◽  
Driving Patterns
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