Engineering Commons^™

Automated Measurement Of Heavy Equipment Greenhouse Gas Emission: The Case Of Road/Bridge Construction And Maintenance, Reza Akhavian

Mineta Transportation Institute

Road/bridge construction and maintenance projects are major contributors to greenhouse gas (GHG) emissions such as carbon dioxide (CO2), mainly due to extensive use of heavy-duty diesel construction equipment and large-scale earthworks and earthmoving operations. Heavy equipment is a costly resource and its underutilization could result in significant budget overruns. A practical way to cut emissions is to reduce the time equipment spends doing non-value-added activities and/or idling. Recent research into the monitoring of automated equipment using sensors and Internet-of-Things (IoT) frameworks have leveraged machine learning algorithms to predict the behavior of tracked entities.

In this project, end-to-end deep learning models …

Our Energy Future, Fall/Winter 2007, Issue 15

Sustain Magazine

No abstract provided.

Renewable Energy, Fall/Winter 2011, Issue 23

Sustain Magazine

No abstract provided.

Active Transportation, Spring/Summer 2012, Issue 26

Sustain Magazine

No abstract provided.

Sustainable Behavior, Spring/Summer 2013, Issue 28

Sustain Magazine

No abstract provided.

Campus Sustainability, Spring/Summer 2014, Issue 30

Sustain Magazine

No abstract provided.

Carbon Neutral, Spring/Summer 2018, Issue 38

Sustain Magazine

No abstract provided.

Zero Emission Zero Waste Construction Sites In California Commercial Construction: A Case Study, Joseph E. Anderson

Construction Management

Zero emission refers to the absence of waste products that pollute the environment or disrupt the climate from any engine, motor, process, or other energy source systems. CO2 emissions through equipment and machinery, along with toxic chemicals, carcinogens, ash and dust are founded most common in the Construction Industry. Although these findings may not raise an eyebrow, it is quite overlooked, and the numerical data is staggering. Zero waste is also examined in this paper—the conservation of all resources by means of responsible production, consumption, reuse, recovery of products and materials without burning and with no discharges to land, water, …

Modelo De Ruteo De Vehículos Para Disminuir Emisión De Material Particulado Generado Por Transporte De Carga: Empresa Del Sector Retail En Bogotá, Carolina Arévalo Alarcón, Rafael Antonio Rojas Romero

Ingeniería Industrial

En Colombia, la satisfacción de la demanda de productos básicos de la canasta familiar, así como de consumo personal, ha sido suplida en su mayoría por la industria retail. Nuevos formatos de venta como el “Hard Discount” han llegado al país, tales como D1, Ara y Justo y Bueno, que con una estrategia de expansión continua incrementan la oferta. Este formato de venta es sostenible cuando la oferta es constante, lo cual solo es posible con una planificación de distribución apropiada incrementando su complejidad. Esta planificación se puede asociar como un VRP donde están definidas ventanas de tiempo para el …

A Method Of Uncertainty Analysis For Whole-Life Embodied Carbon Emissions (Co2-E) Of Building Materials Of A Net-Zero Energy Building In Australia, Mehdi Robati, Daniel J. Daly, Georgios Kokogiannakis

Faculty of Engineering and Information Sciences - Papers: Part B

The construction of new buildings requires the use of a substantial amount of materials, which have an associated embodied energy for manufacturing, transport, construction and end-of-life disposal. A number of inventories have been developed to collate the typical embodied energy or carbon emissions associated with different building materials and activities, and these can be used to quantify the environmental impacts of different construction methods. However, uncertainty exists in the estimation of embodied CO2-e emissions and other environmental impact results, due to i) inconsistencies in typical embodied carbon emissions values in inventories; ii) errors in estimations of material quantities; iii) assumptions …

Effects Of Variable Valve Actuation On Exhaust Enthalpy And Engine Out Emissions, Zakarie Parker

Dissertations, Master's Theses and Master's Reports

Vehicle emissions standards are becoming increasingly more strict as time progresses. Once all of the emissions devices are in their operational stage, these standards can be met with reasonable effort in powertrain design and calibration. However, the core of this system, the three-way catalyst, is non-operational until it has reached 200-350⁰C. Because of this, cold-start catalyst heating is extremely important in new vehicles. The objective of this project was to improve catalyst heating without increasing engine-out emissions. It was decided that the sensible heat portion of the exhaust enthalpy would be the best metric to judge differences between the different …

Study Of American Wood Pellet Stove Emissions, Sergio Gamarra

All Graduate Theses, Dissertations, and Other Capstone Projects

Problem: The EPA (Environmental Protection Agency) had not specified emissions performance standards for pellet burning stoves. Instead they were lumped in with cordwood burning stoves. IRETI’s decision to pursue this baseline study was guided by Minnesota’s concurrent “2025 Energy Action Plan” and the EPA’s pellet stove testing method development. Wood pellet fuel, a renewable resource, and the technology developed to utilize it for residential heating should be further studied to examine how together they both stand up to newly developed EPA emissions testing methods. This will establish a benchmark for testing American technology, thus guiding IRETI’s efforts of introducing foreign …

Data-Driven Test Cases For Sustainability Assessment Of Smart Grid Initiatives In Organized Electricity Markets, Venkat Durvasulu

Electronic Theses and Dissertations

The primary aim of this dissertation is to deliver a technique to augment power system test cases with realistic open-source data to represent a deregulated power system. These test cases are intended to be used by power system researchers who require a test case that is capable of performing economic and environmental analysis on a bulk-power level. These test cases are capable of estimating the cost of bulk-energy for economic analysis and harmful greenhouse gas (GHG) and air polluting (AP) emissions for environmental sustainability analysis. These cases are developed for simulations that are intended to be at the transmission level …

Development Of A 2d Scr Catalyst On A Diesel Particulate Filter Model For Design And Control Applications To A Ultra Low Nox Aftertreatment System, Venkata Chundru

Dissertations, Master's Theses and Master's Reports

This research focuses on modeling and control of PM and NO_x in diesel engine exhaust using an SCR catalyst on a Diesel Particulate Filter (SCR-F). A 2D SCR-F model was developed that is capable of predicting internal states: 2D temperature, PM and NH₃storage distributions and filtration efficiency, pressure drop, PM mass retained in the PM cake and substrate wall and outlet NO, NO₂and NH₃concentrations. The SCR-F model was used to simulate a DOC + SCR-F + DOC + SCR ultra-low NOx system that can achieve > 99.5% NOx conversion efficiency.

The model was calibrated …

Design And Implementation Of An Instantaneous Fuel Mass Flow Measurement System For Use In Verification Of Locomotive Emissions, Adam Wayne James

Graduate Theses, Dissertations, and Problem Reports

Located in Altoona, PA, the Juniata Thoroughbred Emissions Research lab has provided emissions testing and research for several locomotive companies such as CSX, Electro Motive Diesel (EMD), and General Electric (GE). The emissions laboratory measures locomotive emissions through partial flow dilution (PFD) sampling for particulate matter (PM) using a Sierra Instruments BG3 and measures raw gaseous emissions using a MEXA 7100D gaseous emission analyzer. Fuel consumption is measured on a gravimetric basis and is used in verification of proportional sampling of exhaust flow. There were two research goals for this study which were (1) verify that the emissions measurement system …

Reduction Of Nox Emissions In A Single Cylinder Diesel Engine Using Sncr With In-Cylinder Injection Of Aqueous Urea, Anthony Timpanaro

UNF Graduate Theses and Dissertations

The subject of this study is the effect of in-cylinder selective non-catalytic reduction (SNCR) of NO_x emissions in diesel exhaust gas by means of direct injection of aqueous urea ((NH₂)₂CO) into the combustion chamber. A single cylinder diesel test engine was modified to accept an electronically controlled secondary common rail injection system to deliver the aqueous urea directly into the cylinder during engine operation.

Direct in-cylinder injection was chosen in order to ensure precise delivery of the reducing agent without the risk of any premature reactions taking place. Unlike direct in-cylinder injection of neat water, …