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- W2247806592 abstract "The purpose of this study was to develop and test an optimization model that willprovide a deployment plan of emission reduction technologies to reduce emissions fromnon-road equipment. The focus of the study was on the counties of Texas that havenonattainment (NA) and near-nonattainment (NNA) status.The objective of this research was to develop methodologies that will help todeploy emission reduction technologies for non-road equipment of TxDOT to reduceemissions in a cost effective and optimal manner. Three technologies were consideredfor deployment in this research, (1) hydrogen enrichment (HE), (2) selective catalyticreduction (SCR) and (3) fuel additive (FA). Combinations of technologies were alsoconsidered in the study, i.e. HE with FA, and SCR with FA. Two approaches wereinvestigated in this research. The first approach was in which all thetechnologies, i.e. FA, HE and SCR were deployed in the NA counties at the first stage.In the second stage the same technologies were deployed in the NNA counties with theremaining budget, if any. The second approach was called in which all thetechnologies, i.e. FA, HE and SCR were deployed in the NA counties along with deploying only FA in the NNA counties at the first stage. Then with the remainingbudget, SCR and HE were deployed in the NNA counties in the second stage. In each ofthese methods, 2 options were considered, i.e. maximizing NOx reduction with andwithout fuel economy consideration in the objective function. Thus, the four optionsinvestigated each having different mixes of emission reduction technologies includeCase 1A: Method 1 with fuel economy consideration; Case 1B: Method 1 without fueleconomy consideration; Case 2A: Method 2 with fuel economy consideration; and Case2B: Method 2 without fuel economy consideration and were programmed with VisualC++ and ILOG CPLEX. These four options were tested for budget amounts rangingfrom $500 to $1,183,000 and the results obtained show that for a given budget oneoption representing a mix of technologies often performed better than others. This isconceivable because for a given budget the optimization model selects an affordableoption considering the cost of technologies involved while at the same time maximumemission reduction, with and without fuel economy consideration, is achieved.Thus the alternative options described in this study will assist the decisionmakers to decide about the deployment preference of technologies. For a given budget,the decision maker can obtain the results for total NOx reduction, combined dieseleconomy and total combined benefit using the four models mentioned above. Based ontheir requirements and priorities, they can select the desired model and subsequentlyobtain the required deployment plan for deploying the emission reduction technologiesin the NA and NNA counties." @default.
- W2247806592 created "2016-06-24" @default.
- W2247806592 creator A5015135479 @default.
- W2247806592 date "2012-01-03" @default.
- W2247806592 modified "2023-09-24" @default.
- W2247806592 title "Optimal Deployment Plan of Emission Reduction Technologies: for TxDOT’S Construction Equipment" @default.
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