Subbu Kumarappan
Ohio State University
Publications 16
Biorefineries are keen to design optimal biomass supply chains to minimize production, harvest, transport, and other costs. Such a design problem is challenging with the availability of multiple feedstocks (agricultural residues, perennials such as energy crops, short rotation woody crops), sourced from multiple harvest sheds, and transported across multiple modes (trucks, rails, and barges). This paper presents a multi-period optimization model to analyze the feasibility of collection from mult...
#1Subbu Kumarappan (OSU: Ohio State University)H-Index: 3
#2Satish Joshi (MSU: Michigan State University)H-Index: 17
This paper evaluates the optimal composition of annual and perennial biomass feedstocks for a biorefinery. A generic optimization model is built to minimize costs – harvest, transport, storage, seasonal, and environmental costs – subject to various constraints on land availability, feedstock availability, processing capacity, contract terms, and storage losses. The model results are demonstrated through a case study for a midwestern U.S. location, focusing on bioethanol as the likely product. Th...
4 CitationsSource
#1V. Kavitha (TNAU: Tamil Nadu Agricultural University)
#2S. Angles (TNAU: Tamil Nadu Agricultural University)
Last.Subbu Kumarappan (OSU: Ohio State University)H-Index: 3
view all 4 authors...
Oil seeds and edible oils are the essential commodities in Indian trade. Among the edible oils, soybean oil is highly recommended for reducing the level of bad cholesterol in the blood. Though it is used in large quantities in other parts of India, its usage in South India is quite limited. The analysis of growth rate of total oil seeds area in India showed a positive growth of 0.75%, and the production statistics revealed a growth rate of 2.98% per annum . This indicated that there is a need to...
#1Subbu KumarappanH-Index: 3
#2Satish JoshiH-Index: 17
The Energy Independence and Security Act (EISA) 2007 mandate the use of 21 billion gallons of advanced biofuels including 16 billion gallons of cellulosic biofuels by the year 2022. While much previous advanced biofuel related research has focused on cellulosic ethanol, advanced drop-in-biofuels such as biobutanol and renewable diesel are gaining significant attention because of their attractive combustion properties, compatibility with existing vehicle fleet, fuel distribution, and retailing in...
1 Citations
This paper proposes a Hegelian dialectic method as a teaching strategy to not only teach pluralism but also to compare and contrast it with the neoclassical economics. The Hegelian dialectic derives meaningful theories (or viewpoints) from opposing ideas and concepts, summarised by the triad 'thesis-antithesis-synthesis'. Students can also learn how opposing viewpoints culminate in a consensus view among economists (termed as synthesis in Hegelian dialectic). This paper provides several techniqu...
#1Subbu Kumarappan (OSU: Ohio State University)H-Index: 3
#2Satish Joshi (MSU: Michigan State University)H-Index: 17
Abstract Replacing petroleum fuels with biofuels such as ethanol and biodiesel has been shown to reduce greenhouse gas (GHG) emissions. These GHG benefits can potentially be traded in the fledgling carbon markets, and methodologies for quantifying and trading are still being developed. We review the main challenges in developing such carbon trading frameworks and outline a proposed framework for the US, the main features of which include, lifecycle assessment of GHG benefits, a combination of pr...
5 CitationsSource
This teaching module shows how U.S. antitrust laws are affected by 'intentional' and 'evolutionary' visions of socio-economic market processes. The extent of government's role is studied to review whether the U.S. antitrust laws should be strengthened, reformed or repealed. The focus of Chicago (and Austrian) school is discussed: 'antitrust laws should promote and enhance the trio of -- consumer welfare, competition process, and dynamic (productive and allocative) efficiency.’The role of U.S. an...
#1Subbu Kumarappan (OSU: Ohio State University)H-Index: 3
Crude oil price speculation during 2000s could have increased installed capacity in corn ethanol plants beyond what was warranted by the market factors. We use Muth’s commodity pricing model and Flood and Garber’s tests to test for speculative investment in US corn ethanol industry. The ethanol price expectations are derived using a system of supply-demand-inventory describing US ethanol markets under rational expectations (perfect foresight). These price expectations can help differentiate the ...
#1Subbu Kumarappan (MSU: Michigan State University)H-Index: 3
#2Satish JoshiH-Index: 17
Last.Heather L. MacLean (U of T: University of Toronto)H-Index: 24
view all 3 authors...
The potential supply of biomass feedstocks in the US and Canada is estimated using a static supply function approach. Estimated total biomass available at a price of 100 per metric ton is 568 million metric tons in the US and 123 million tons in Canada, which together can displace 23-45 billion gallons of gasoline. Sufficient biomass, mainly agricultural and mill residues, will be available at prices of around 0/ton to meet the advanced biofuel mandates of the US Energy Independence and Secur...
22 CitationsSource