‘ENPROD’ MODEL – estimating the energy impact of the use of heavy duty construction equipment by using productivity rate

Abstract

The effect of the electric fields on crystalline structure and functional group of mendong fiber (Fimbristylis globulosa) AIP Conference Proceedings 1778, 030007 (2016) Abstract. Heavy duty diesel (HDD) construction equipment plays an important role in building and rebuilding Indonesia's infrastructure and has a significant impact on national energy consumption in the form of diesel fuel. This paper demonstrates an 'energy-productivity' (ENPROD) model, a practice-ready methodology in developing an energy estimating model for HDD equipment that establishes a baseline of current fuel use based on the equipment's productivity rates. The model was formulated by using the productivity model to obtain the total duration of work, and combined with the NONROAD's brake specific fuel consumption (BSFC) to gain the fuel consumption rate in term of liter per horsepower-hour (liter/hp-hr). ENPROD model is good to be used as a benchmark for estimating fuel use from some certain types of construction equipment performing earthwork activities. Based on the methodology presented in this paper, the results revealed several trends related to total fuel use of the equipment.

Determining the environmental impact of material hauling with wheel loaders during earthmoving operations

“…Environmental Protection Agency to develop models or methods for assessing heavy-duty construction equipment emissions (Li and Lei 2010;Rasdorf et al 2012;Hajji and Lewis 2013a and b;Arocho, Rasdorf, and Hummer 2014;Hajji, Muladi, and Larasati 2016). This model performs assessments based on the engine load factor, equipment age, and activity type.…”

“…In addition, there is a lack of predictive methods that can be used during project planning (Melanta et al 2013). Thus, to minimize the environmental impact of construction work, planners and estimators will need to consider the environmental impact of their machinery selections, although this is rarely done at present (Hajji, Muladi, and Larasati 2016). A procedure to quantify and categorize the different pollutants emitted from each construction process is needed to improve emissions mitigation strategies (Marshall et al 2012), especially given the global need for contractors to meet client requirements that include increasingly stringent environmental demands (Marshall et al 2012).…”