Analysis of Carbon Footprint Applied to Conceptual Engineering of Offshore Production Units

2021 ◽  
Author(s):  
Leandro Pereira Basilio ◽  
Priscilla Badega Machado ◽  
Débora Calaza de Sousa ◽  
Agremis Guinho Barbosa ◽  
Diego Russo Juliano ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Value Chain ◽  
Carbon Emission ◽  
Ghg Emissions ◽  
Opportunity Identification ◽  
Capital Projects ◽  
Offshore Production ◽  
Conceptual Engineering ◽  
The Impact

Abstract As the environmental impact is critical for industry sustainability, early quantifying Greenhouse Gas (GHG) emissions of offshore units represents a central role and step-change improvement across the O&G value chain. Developing an overarching realistic model to estimate GHG emissions is a challenge due to the different methodologies available, the complexity of offshore installations, and the degree of uncertainty in the estimation of emission factors. The present work focuses on the earlier stages of new development, notably in Front End Loading-1 (FEL-1) and FEL-2, i.e., opportunity identification and conceptual engineering studies, respectively. The primary objective of this study is to propose an innovative modeling methodology to quantify Greenhouse Gas (GHG) emissions in offshore production facilities. Since E&P companies consider current and future carbon dioxide equivalents (CO2e) emissions as a factor into capital projects economics, this study additionally proposes a semi-empirical model for OPEX calculation considering the impact related to emissions (on a CO2e basis). Emissions of GHG in the O&G industry typically occur from one of the following general source classes: (i) combustion sources, including both stationary devices and mobile equipment; (ii) process emissions and vented sources; (iii) fugitive sources; and (iv) indirect sources. The projection of carbon emission costs along the asset life cycle is performed to simulate the economic impact of such emission on an OPEX perspective. After estimating the CO2e emissions, the procedure consists of using the "Carbon Emission Cost Projection" to calculate the cost of the CO2 emitted and penalize the OPEX of the evaluated alternative. The proposed model can be used to estimate Carbon Footprint for each one of the several conceptual engineering alternatives evaluated during the conceptual phase of the project, improving not only the techno-economic analysis but also the decision-making process of Capital Projects in the O&G Industry.

Carbon Footprint Analysis of an Educational Institution

2015 ◽  
Vol 787 ◽  
pp. 187-191
Author(s):  
P.M. Sivaram ◽  
N. Gowdhaman ◽  
D.Y. Ebin Davis ◽  
M. Subramanian
Keyword(s):  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Greenhouse Gas Emission ◽  
Educational Institution ◽  
Ghg Emissions ◽  
Liquefied Petroleum Gas ◽  
Diesel Generator ◽  
Working Paper ◽  
Corporate Carbon Footprint ◽  
The Impact

Global warming and climate change are the foremost environmental challenges facing the world today. It is our responsibility to minimize the consumption of energy and hence reduce the emissions of greenhouse gases. Companies choose ‘Carbon Footprint’ as a tool to calculate the greenhouse gas emission to show the impact of their activities on the environment. In this working paper, we assess the carbon foot print of an educational institution and suggest suitable measures for reducing it. Greenhouse gas emitting protocol for an academic institution in terms of tones of equivalent CO2 per year is projected using three basic steps includes planning (assessment of data’s), calculation and estimation of CO2 emitted. The estimation of carbon foot print is calculated by accounting direct emission from sources owned/controlled by the educational institution and from indirect emission i.e. purchased electricity, electricity produced by diesel Generator (DG), transport, cooking (Liquefied Petroleum Gas) and other outsourced distribution. The CO2 absorbed by trees are also accounted. Some of the options are identified in order to reduce CO2 level. The information of corporate carbon footprint helps us identifying the Green House Gases (GHG) emission “hot spots” and identifies where the greatest capacity exists in order to reduce the GHG emissions. The main prioritization goes to transport and then followed by DG, cooking and then electricity. The per capita CO2 emission and the total CO2 emission for a typical educational institution are estimated.

Analysis of Calculation Methods for Life Cycle Greenhouse Gas Emissions for Road Sector

2017 ◽  
Author(s):  
Viktoras Vorobjovas ◽  
Algirdas Motiejunas ◽  
Tomas Ratkevicius ◽  
Alvydas Zagorskis ◽  
Vaidotas Danila
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Ghg Emissions ◽  
Road Construction ◽  
Evaluation Methods ◽  
The Road ◽  
Construction Methods ◽  
The Impact

Climate change is one of the main nowadays problem in the world. The politics and strategies for climate change and tools for reduction of greenhouse gas (GHG) emissions and green technologies are created and implemented. Mainly it is focused on energy, transport and construction sectors, which are related and plays a significant role in the roads life cycle. Most of the carbon footprint emissions are generated by transport. The remaining emissions are generated during the road life cycle. Therefore, European and other countries use methods to calculate GHG emissions and evaluate the impact of road construction methods and technologies on the environment. Software tools for calculation GHG emissions are complicated, and it is not entirely clear what GHG emission amounts generate during different stages of road life cycle. Thus, the precision of the obtained results are often dependent on the sources and quantities of data, assumptions, and hypothesis. The use of more accurate and efficient calculation-evaluation methods could let to determine in which stages of road life cycle the largest carbon footprint emissions are generated, what advanced road construction methods and technologies could be used. Also, the road service life could be extended, the consumption of raw materials, repair, and maintenance costs could be reduced. Therefore the time-savings could be improved, and the impact on the environment could be reduced using these GHG calculation-evaluation methods.

scholarly journals There is a silver lining: carbon footprint reduction by holding Preventive Cardiology conference 2020 virtually

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
T Batool ◽  
A Neven ◽  
Y Vanrompay ◽  
M Adnan ◽  
P Dendale
Keyword(s):  
Climate Change ◽  
Co2 Emissions ◽  
Carbon Footprint ◽  
Carbon Emission ◽  
Ghg Emissions ◽  
Air Travel ◽  
Co2 Production ◽  
Scientific Conference ◽  
Preventive Cardiology ◽  
Transport Modes

Abstract Funding Acknowledgements Type of funding sources: Other. Main funding source(s): Special Research Fund (BOF), Hasselt University Introduction The transportation sector is one of the major sectors influencing climate change, contributing around 16% of total Greenhouse gases (GHG) emissions. Aviation contributes to 12% of the transport related emissions. Among other climate change impacts, elevated heat exposure is associated with increased cardiac events and exposure to air pollution caused by GHG emissions has also well-known association with increased cardiovascular related morbidity and mortality. The global temperature rise should be restricted to less than 2 °C which requires keeping carbon emission (CO2) less than 2900 billion tonnes by the end of the 21st century. Assuming air travel a major contributing source to GHG, this study aims to raise the awareness about potential carbon emissions reduction due to air travel of international events like a scientific conference. Purpose Due to the global pandemic of COVID-19, the Preventive cardiology conference 2020 which was planned to be held at Malaga Spain, instead was held in virtual online way. This study aims to calculate the contribution of reduced CO2  emissions in tons due to ESC preventive cardiology conference 2020, which was then held online and air travel of the registered participants was avoided. Methods Anonymized participant registration information was used to determine the country and city of the 949 registered participants of the Preventive Cardiology conference 2020. It is assumed that participants would have travelled from the closest airports from their reported city locations to Malaga airport, Spain. At first, the closest city airports were determined using Google maps and flights information, then the flight emissions (direct and indirect CO2-equivalent emissions) per passenger for the given flight distances were calculated. The CO2 emissions (tons) were calculated for round trips in economy class from the participants of 68 nationalities (excluding 60 participants from Spain as they are assumed to take other modes of transport than airplane). Results In total, 1156.51 tons of CO2  emissions were saved by turning the physical conference into a virtual event. This emission amount is equivalent to the annual CO2 production of 108 people living in high-income countries. Conclusion The pandemic situation has forced us to rethink the necessity of trips by air and has shown us the feasibility of digitally organized events. The information from this study can add to the awareness about reduced amount of carbon emission due to air travel by organizing events in a virtual way when possible. Apart from only digitally organized events there are others options to reduce the carbon footprint of conferences such as limiting the number of physical attendees, encouraging the use of relatively sustainable transport modes for participants from nearby countries (e.g. international trains and use of active transport modes at conference venue etc.) and including CO2 emission offsetting costs.

scholarly journals Impacts of Autonomous Vehicles on Greenhouse Gas Emissions—Positive or Negative?

2021 ◽  
Vol 18 (11) ◽  
pp. 5567
Author(s):  
Moneim Massar ◽  
Imran Reza ◽  
Syed Masiur Rahman ◽  
Sheikh Muhammad Habib Abdullah ◽  
Arshad Jamal ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Autonomous Vehicles ◽  
Significant Contribution ◽  
Ghg Emissions ◽  
Interval Estimate ◽  
Modal Shift ◽  
Vehicle Mile Travel ◽  
Emission Changes ◽  
Negative Impacts ◽  
The Impact

The potential effects of autonomous vehicles (AVs) on greenhouse gas (GHG) emissions are uncertain, although numerous studies have been conducted to evaluate the impact. This paper aims to synthesize and review all the literature regarding the topic in a systematic manner to eliminate the bias and provide an overall insight, while incorporating some statistical analysis to provide an interval estimate of these studies. This paper addressed the effect of the positive and negative impacts reported in the literature in two categories of AVs: partial automation and full automation. The positive impacts represented in AVs’ possibility to reduce GHG emission can be attributed to some factors, including eco-driving, eco traffic signal, platooning, and less hunting for parking. The increase in vehicle mile travel (VMT) due to (i) modal shift to AVs by captive passengers, including elderly and disabled people and (ii) easier travel compared to other modes will contribute to raising the GHG emissions. The result shows that eco-driving and platooning have the most significant contribution to reducing GHG emissions by 35%. On the other side, easier travel and faster travel significantly contribute to the increase of GHG emissions by 41.24%. Study findings reveal that the positive emission changes may not be realized at a lower AV penetration rate, where the maximum emission reduction might take place within 60–80% of AV penetration into the network.

Making the world’s longest subsea tunnel sustainable

2018 ◽  
Author(s):  
Ketil Søyland ◽  
Christer Wolden ◽  
Christopher Garmann ◽  
Debbie Harrison
Keyword(s):  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Large Scale ◽  
Ghg Emissions ◽  
Infrastructure Projects ◽  
Subsea Tunnel ◽  
Engineering Practices

<p>How can large-scale infrastructure projects be sustainable? The purpose of this paper is to discuss how engineering practices were changed in order to reduce the carbon footprint of the E39 Rogfast project, the world’s longest roadway sub-sea tunnel. The project will generate greenhouse gas (GHG)-emissions exceeding 1% of Norway’s total annual GHG-emissions. The paper covers the project process, including some of the challenges to be overcome.</p>

Impacts of Government Policies, Fuel Cell Cost, and Battery Cost on Greenhouse Gas Emission of Light-Duty Vehicles

2013 ◽  
Author(s):  
Swithin S. Razu ◽  
Shun Takai
Keyword(s):  
Public Policy ◽  
Fuel Cell ◽  
Greenhouse Gas ◽  
Greenhouse Gas Emission ◽  
Ghg Emissions ◽  
Government Policies ◽  
Alternative Fuel Vehicles ◽  
Enterprise Model ◽  
The Government ◽  
The Impact

The aim of this paper is to study the impact of public government policies, fuel cell cost, and battery cost on greenhouse gas (GHG) emissions in the US transportation sector. The model includes a government model and an enterprise model. To examine the effect on GHG emissions that fuel cell and battery cost has, the optimization model includes public policy, fuel cell and battery cost, and a market mix focusing on the GHG effects of four different types of vehicles, 1) gasoline-based 2) gasoline-electric hybrid or alternative-fuel vehicles (AFVs), 3) battery-electric (BEVs) and 4) fuel-cell vehicles (FCVs). The public policies taken into consideration are infrastructure investments for hydrogen fueling stations and subsidies for purchasing AFVs. For each selection of public policy, fuel cell cost and battery cost in the government model, the enterprise model finds the optimum vehicle design that maximizes profit and updates the market mix, from which the government model can estimate GHG emissions. This paper demonstrates the model using FCV design as an illustrative example.

Effect of wheat varieties and growth regulators on soil greenhouse gas emissions

2021 ◽  
Author(s):  
Elsbe von der Lancken ◽  
Victoria Nasser ◽  
Katharina Hey ◽  
Stefan Siebert ◽  
Ana Meijide
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Greenhouse Gas ◽  
Growth Regulators ◽  
Production Systems ◽  
Ghg Emissions ◽  
Closed Chamber ◽  
Wheat Varieties ◽  
The Impact ◽  
Modern Varieties

&lt;p&gt;The need to sustain global food demand while mitigating greenhouse gases (GHG) emissions is a challenge for agricultural production systems. Since the reduction of GHGs has never been a breeding target, it is still unclear to which extend different crop varieties will affect GHG emissions. The objective of this study was to evaluate the impact of N-fertilization and of the use of growth regulators applied to three historical and three modern varieties of winter wheat on the emissions of the three most important anthropogenic GHGs, i.e. carbon dioxide (CO&lt;sub&gt;2&lt;/sub&gt;), methane (CH&lt;sub&gt;4&lt;/sub&gt;) and nitrous oxide (N&lt;sub&gt;2&lt;/sub&gt;O). Furthermore, we aimed at identifying which combination of cultivars and management practises could mitigate GHG emissions in agricultural systems without compromising the yield. GHG measurements were performed using the closed chamber method in a field experiment located in G&amp;#246;ttingen (Germany) evaluating three historical and three modern winter wheat varieties, with or without growth regulators under two fertilization levels (120 and 240&amp;#160;kg nitrogen ha&lt;sup&gt;-1&lt;/sup&gt;). GHG measurements were carried out for 2 weeks following the third nitrogen fertilizer application (where one third of the total nitrogen was applied), together with studies on the evolution of mineral nitrogen and dissolved organic carbon in the soil. Modern varieties showed significantly higher CO&lt;sub&gt;2&lt;/sub&gt; emissions (i.e. soil and plant respiration; +23&amp;#160;%) than historical varieties. The soils were found to be a sink for CH&lt;sub&gt;4,&lt;/sub&gt; but CH&lt;sub&gt;4&lt;/sub&gt; fluxes were not affected by the different treatments. N&lt;sub&gt;2&lt;/sub&gt;O emissions were not significantly influenced by the variety age or by the growth regulators, and emissions increased with increasing fertilization level. The global warming potential (GWP) for the modern varieties was 7284.0 &amp;#177; 266.9&amp;#160;kg CO&lt;sub&gt;2-eq&lt;/sub&gt; ha&lt;sup&gt;-1&lt;/sup&gt;. Even though the GWP was lower for the historic varieties (5939.5 &amp;#177; 238.2&amp;#160;kg CO&lt;sub&gt;2&lt;/sub&gt;-&lt;sub&gt;eq&lt;/sub&gt; ha&lt;sup&gt;-1&lt;/sup&gt;), their greenhouse gas intensity (GHGI), which relates GHG and crop yield, was larger (1.5 &amp;#177; 0.3&amp;#160;g CO&lt;sub&gt;2&lt;/sub&gt;-&lt;sub&gt;eq&lt;/sub&gt; g&lt;sup&gt;-1&lt;/sup&gt; grain), compared to the GHGI of modern varieties (0.9 &amp;#177; 0.0&amp;#160;g CO&lt;sub&gt;2&lt;/sub&gt;-&lt;sub&gt;eq&lt;/sub&gt; g&lt;sup&gt;-1&lt;/sup&gt; grain), due to the much lower grain yield in the historic varieties. Our results suggest that in order to mitigate GHG emissions without compromising the grain yield, the best management practise is to use modern high yielding varieties with growth regulators and a fertilization scheme according to the demand of the crop.&lt;/p&gt;

Greenhouse Gas Emissions from the Petroleum Industry

2017 ◽  
pp. 213-241
Author(s):  
Lidia Hrnčević
Keyword(s):  
Greenhouse Gas ◽  
Global Climate ◽  
Petroleum Industry ◽  
Ghg Emissions ◽  
High Energy ◽  
Global Market ◽  
Special Focus ◽  
Global Industry ◽  
High Emission ◽  
The Impact

Greenhouse Gas (GHG) emissions occur, more or less, in all aspects of the petroleum industry's activities. Besides the direct emissions of some GHG, the petroleum industry is also characterised with high energy intensity usually followed by emissions of adverse gases, especially at old facilities, and also the products with high emission potential. Being the global industry and one of the major players on global market, the petroleum industry is also subjected to global regulatory provisions regarding GHG emissions. In this chapter, the impact of global climate change on the petroleum industry is discussed. The emissions from the petroleum industry are analysed with a special focus on greenhouse gases that occur in petroleum industry activities and types and sources of emissions from the petroleum industry activities. In addition, recommendations for estimation, monitoring, and reductions of GHG emissions from the petroleum industry are given.

scholarly journals Implications of potential future grand solar minimum for ozone layer and climate

2017 ◽  
Author(s):  
Pavle Arsenovic ◽  
Eugene Rozanov ◽  
Julien Anet ◽  
Andrea Stenke ◽  
Thomas Peter
Keyword(s):  
Solar Activity ◽  
Greenhouse Gas ◽  
21St Century ◽  
Atmospheric Chemistry ◽  
Solar Minimum ◽  
Climate Model ◽  
Ghg Emissions ◽  
Ozone Production ◽  
22Nd Century ◽  
The Impact

Abstract. Continued anthropogenic greenhouse gas (GHG) emissions are expected to cause further global warming throughout the 21st century. Understanding potential interferences with natural forcings is thus of great interest. Here we investigate the impact of a recently proposed 21st century grand solar minimum on atmospheric chemistry and climate using the SOCOL3-MPIOM chemistry-climate model with interactive ocean. We examine several model simulations for the period 2000–2199, following the greenhouse gas scenario RCP4.5, but with different solar forcings: the reference simulation is forced by perpetual repetition of solar cycle 23 until the year 2199, whereas the grand solar minimum simulations assume strong declines in solar activity of 3.5 and 6.5 W m−2 with different durations. Decreased solar activity is found to yield up to a doubling of the GHG induced stratospheric and mesospheric cooling. Under the grand solar minimum scenario tropospheric temperatures are also projected to decrease. On the global scale the reduced solar forcing compensates at most 15 % of the expected greenhouse warming at the end of 21st and around 25 % at the end of 22nd century. The regional effects are predicted to be stronger, in particular in northern high latitude winter. In the stratosphere, the reduced incoming ultraviolet radiation leads to less ozone production by up to 8 %, which overcompensates the anticipated ozone increase due to reduced stratospheric temperatures and an acceleration of the Brewer-Dobson circulation. This, in turn, leads to a delay in total ozone column recovery from anthropogenic chlorine-induced depletion, with a global ozone recovery to the pre-ozone hole values happening only upon completion of the grand solar minimum in the 22nd century or later.

scholarly journals Carbon Footprint Assessment of Spanish Dairy Cattle Farms: Effectiveness of Dietary and Farm Management Practices as a Mitigation Strategy

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2083
Author(s):  
Ridha Ibidhi ◽  
Sergio Calsamiglia
Keyword(s):  
Greenhouse Gas ◽  
Carbon Footprint ◽  
Management Practices ◽  
Ghg Emissions ◽  
System Model ◽  
Feeding Strategies ◽  
Management Scenarios ◽  
Dietary Practices ◽  
Enteric Methane ◽  
Increase Milk Production

Greenhouse gas emissions and the carbon footprint (CF) were estimated in twelve Spanish dairy farms selected from three regions (Mediterranean, MED; Cantabric, CAN; and Central, CEN) using a partial life cycle assessment through the Integrated Farm System Model (IFSM). The functional unit was 1 kg of energy corrected milk (ECM). Methane emissions accounted for the largest contribution to the total greenhouse gas (GHG) emissions. The average CF (kg CO2-eq/kg of ECM) was 0.84, being the highest in MED (0.98), intermediate in CEN (0.84), and the lowest in CAN (0.67). Two extreme farms were selected for further simulations: one with the highest non-enteric methane (MED1), and another with the highest enteric methane (CAN2). Changes in management scenarios (increase milk production, change manure collection systems, change manure-type storage method, change bedding type and installation of an anaerobic digester) in MED1 were evaluated with the IFSM model. Changes in feeding strategies (reduce the forage: concentrate ratio, improve forage quality, use of ionophores) in CAN2 were evaluated with the Cornell Net Carbohydrate and Protein System model. Results indicate that changes in management (up to 27.5% reduction) were more efficient than changes in dietary practices (up to 3.5% reduction) in reducing the carbon footprint.

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