A corn-stover harvest scheduling problem arising in cellulosic ethanol production

Aguayo, Maichel M.; Sarin, Subhash C.; Cundiff, John S.; Comer, Kevin; Clark, Tim W.

doi:10.1016/j.biombioe.2017.09.013

Cited by 25 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They estimated the transportation cost at 8.88-9.50 USD per dry Mg. Similar concepts were investigated by others [17][18][19]42]. These authors suggested that a smaller SSLs (in storage volume) may be more desirable when compared larger SSLs, due to the low cost of moving the loaders.…”

Section: Satellite Storage Locationsmentioning

confidence: 64%

“…Most complex logistics chains are organized with central control. A study specific to corn stover in the Midwest (large rectangular bales) was done by Aguayo et al [17] and Aguayo et al [18], and a study specific to switchgrass in the Piedmont (round bales, rack system) was done by Judd et al [19]. In each study, the productivity of the system of equipment was enhanced (in tons/week) using central control.…”

Section: Centralized Controlmentioning

confidence: 99%

See 1 more Smart Citation

Multi-Bale Handling Unit for Efficient Logistics

2020

Self Cite

View full text Add to dashboard Cite

This paper presents a design for a feedstock logistics system to supply a bioenergy plant located in the Southeast USA, specifically Piedmont, a physiographic region covering part of five states (VA, NC, SC, GA, and AL). The design uses a perennial grass (switchgrass) as the feedstock. Harvest is done with a round baler, and round bales are stored in single-layer ambient storage in satellite storage locations. New technology, 20-bale racks, was designed as the multi-bale handling unit. The analysis shows how proper design of the interactions between the several unit operations in a “logistics chain” can be used to minimize average delivered cost for the feedstock required for 24/7 operation. Racks are loaded at the satellite storage and delivered by hauling contractors hired by the plant and controlled by a “Feedstock Manager” at the plant to insure approximately the same number of loads are received each day. Single-bale handling at the plant is eliminated, thus the truck unload time is reduced and truck productivity (tons/day) is increased. At-plant handling and storage in 20-bale racks increases plant receiving facility productivity, and gives a reduction in plant cost to supply a continuous steam of material for 24/7 operation.

show abstract

Section: Satellite Storage Locationsmentioning

confidence: 64%

Section: Centralized Controlmentioning

confidence: 99%

Multi-Bale Handling Unit for Efficient Logistics

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…The advantage gained with central control of hauling was documented by Aguayo et al [7]. They developed a method for scheduling shipment of bales of corn stover from actual road-size storage locations in the Midwest USA.…”

mentioning

confidence: 99%

Load and Unload Technology to Improve Round-Bale Hauling Efficiency

Cundiff

Grisso

2021

AgriEngineering

Self Cite

View full text Add to dashboard Cite

There are two key parameters in short-haul truck operations to deliver biomass to a biorefinery: (1) mass of the load and (2) cycle time (load, travel, unload, and return). A plan to optimize both these parameters is outlined in this study. Operation of a logistics system to deliver 20-bale racks to a biorefinery for continuous 24/7 operation, 48 weeks/year is described. Round bales are stored in satellite storage locations (SSLs) by feedstock producers. A truckload consists of two tandem trailers (40, 0.4 Mg bales), a specification that maximizes load mass. Load-out at the SSL (loading bales into racks) is performed by a contractor and paid by the biorefinery. Subsequent hauling (truck tractor to pull the trailers) is also contracted for by the biorefinery. Central control is specified; the “feedstock manager” at the biorefinery decides the order SSLs are loaded out and can route a truck to any SSL where a load is ready. Tandem trailers with empty racks are dropped at the SSL, and the trailers with full racks are towed to the biorefinery. Uncoupling the loading and hauling in this manner reduces the time the truck waits for loading and the SSL load-out waits for a truck; thus, productivity of both operations is increased. At the biorefinery receiving facility, full racks are removed from the trailers and replaced with empty racks. The objective for this transfer is a 10 min unload time, which completes a logistics design that minimizes cycle time. A delivered rack is placed in a rack unloader to supply bales for immediate processing, or it is placed in central storage to supply bales for nighttime and weekend operations. Three biorefinery capacities were studied: 0.5, 1.0, and 1.5 bale/min. The analysis shows that rack cost to supply a biorefinery processing a bale/min for 24/7 operation is ~3.00 USD/Mg of annual biorefinery capacity, and the rack trailer cost is ~3.25 USD/Mg. Total delivery cost, beginning with bales in SSL storage and ending with a rack being placed in an unloader to deliver individual bales for processing, is 31.51, 28.42, and 26.92 USD/Mg for a biorefinery processing rates of 0.5, 1.0, and 1.5 bale/min, respectively.

show abstract

“…It shows a summary of recent scientific publications on decision making of biofuel supply chain (Table 3) It is observed that most biofuel supply chain planning and management problems are formulated as a Mixed Integer Linear Programming (MILP) problem, covering 21 papers out of 32 articles. Aguayo et al [15] present a MILP model to address a static and dynamic corn-stover harvest scheduling problem in cellulosic ethanol production by minimising system cost. Ahn et al [16] developed a mathematical programming model for strategic planning and design of microalgae biomass-to-biodiesel supply chain which minimise the total cost of the supply chain by taking resource constraints, demand constraints and technology into accounts.…”

mentioning

confidence: 99%

“…However, publication solely focusing on biofuel supply chain with case study characterising biofuel production in this region is missing. [15] x [16] x [42] x [30] x…”

mentioning

confidence: 99%

Operational Management Implemented in Biofuel Upstream Supply Chain and Downstream International Trading: Current Issues in Southeast Asia

2020

View full text Add to dashboard Cite

Bioenergy is one of the alternatives to secure energy demand, despite increasing debate on the sustainability of using bioenergy as a renewable source. As the source is disseminated over a large area and affected by seasonality, the potential benefit is highly dependent on other cost and benefit trade-offs along the supply chain. This review paper aims to assess operational management research methods used in biofuel supply chain planning, including both upstream production and international downstream trading. There have been considerable operational management studies done on upstream processes in biofuel production based on different strategic and tactical decision making of a single or multiple feedstocks, considering economic and environmental factor. However, the environmental consideration is often limited to carbon emission where the other environmental impact such as land-use change, biodiversity loss, irrigation and fertilisation are often being overlooked. Biofuel supply chain and trading at international level remain as an apparent research potential where only limited numbers of global energy models explicitly simulate international bioenergy trade. The leading biofuel producing countries in Southeast Asia: Malaysia, Indonesia and Thailand, are selected as a case study to investigate further on how the supply chain management model could be applied considering the existing biofuel support policies. This study is expected to contribute to the selection of operational management research methods used for decision making under robust policy context, followed by several recommendations.

show abstract

A corn-stover harvest scheduling problem arising in cellulosic ethanol production

Cited by 25 publications

References 25 publications

Multi-Bale Handling Unit for Efficient Logistics

Multi-Bale Handling Unit for Efficient Logistics

Load and Unload Technology to Improve Round-Bale Hauling Efficiency

Operational Management Implemented in Biofuel Upstream Supply Chain and Downstream International Trading: Current Issues in Southeast Asia

Contact Info

Product

Resources

About