date: 2015-02-02T13:54:29Z
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pdf:docinfo:title: Thermal-Economic Modularization of Small, Organic Rankine Cycle Power Plants for Mid-Enthalpy Geothermal Fields
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subject: The costs of the surface infrastructure in mid-enthalpy geothermal power systems, especially in remote areas, could be reduced by using small, modular Organic Rankine Cycle (ORC) power plants. Thermal-economic criteria have been devised to standardize ORC plant dimensions for such applications. We designed a modular ORC 
to utilize various wellhead temperatures (120?170 °C), mass flow rates and ambient temperatures (?10?40 °C). A control strategy was developed using steady-state optimization, in order to maximize net power production at off-design conditions. Optimum component sizes were determined using specific investment cost (SIC) minimization and mean cashflow (MCF) maximization for three different climate scenarios. Minimizing SIC did not yield significant benefits, but MCF proved to be a much better optimization function.

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dc:title: Thermal-Economic Modularization of Small, Organic Rankine Cycle Power Plants for Mid-Enthalpy Geothermal Fields
modified: 2015-02-02T13:54:29Z
cp:subject: The costs of the surface infrastructure in mid-enthalpy geothermal power systems, especially in remote areas, could be reduced by using small, modular Organic Rankine Cycle (ORC) power plants. Thermal-economic criteria have been devised to standardize ORC plant dimensions for such applications. We designed a modular ORC 
to utilize various wellhead temperatures (120?170 °C), mass flow rates and ambient temperatures (?10?40 °C). A control strategy was developed using steady-state optimization, in order to maximize net power production at off-design conditions. Optimum component sizes were determined using specific investment cost (SIC) minimization and mean cashflow (MCF) maximization for three different climate scenarios. Minimizing SIC did not yield significant benefits, but MCF proved to be a much better optimization function.

pdf:docinfo:subject: The costs of the surface infrastructure in mid-enthalpy geothermal power systems, especially in remote areas, could be reduced by using small, modular Organic Rankine Cycle (ORC) power plants. Thermal-economic criteria have been devised to standardize ORC plant dimensions for such applications. We designed a modular ORC 
to utilize various wellhead temperatures (120?170 °C), mass flow rates and ambient temperatures (?10?40 °C). A control strategy was developed using steady-state optimization, in order to maximize net power production at off-design conditions. Optimum component sizes were determined using specific investment cost (SIC) minimization and mean cashflow (MCF) maximization for three different climate scenarios. Minimizing SIC did not yield significant benefits, but MCF proved to be a much better optimization function.

pdf:docinfo:creator: Yodha Y. Nusiaputra, Hans-Joachim Wiemer, Dietmar Kuhn
meta:author: Yodha Y. Nusiaputra, Hans-Joachim Wiemer, Dietmar Kuhn
meta:creation-date: 2014-07-03T09:39:55Z
created: 2014-07-03T09:39:55Z
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Creation-Date: 2014-07-03T09:39:55Z
Author: Yodha Y. Nusiaputra, Hans-Joachim Wiemer, Dietmar Kuhn
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dc:description: The costs of the surface infrastructure in mid-enthalpy geothermal power systems, especially in remote areas, could be reduced by using small, modular Organic Rankine Cycle (ORC) power plants. Thermal-economic criteria have been devised to standardize ORC plant dimensions for such applications. We designed a modular ORC 
to utilize various wellhead temperatures (120?170 °C), mass flow rates and ambient temperatures (?10?40 °C). A control strategy was developed using steady-state optimization, in order to maximize net power production at off-design conditions. Optimum component sizes were determined using specific investment cost (SIC) minimization and mean cashflow (MCF) maximization for three different climate scenarios. Minimizing SIC did not yield significant benefits, but MCF proved to be a much better optimization function.

Keywords: modularization; geothermal; Organic Rankine Cycle; specific investment cost; mean cash flow
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dc:creator: Yodha Y. Nusiaputra, Hans-Joachim Wiemer, Dietmar Kuhn
description: The costs of the surface infrastructure in mid-enthalpy geothermal power systems, especially in remote areas, could be reduced by using small, modular Organic Rankine Cycle (ORC) power plants. Thermal-economic criteria have been devised to standardize ORC plant dimensions for such applications. We designed a modular ORC 
to utilize various wellhead temperatures (120?170 °C), mass flow rates and ambient temperatures (?10?40 °C). A control strategy was developed using steady-state optimization, in order to maximize net power production at off-design conditions. Optimum component sizes were determined using specific investment cost (SIC) minimization and mean cashflow (MCF) maximization for three different climate scenarios. Minimizing SIC did not yield significant benefits, but MCF proved to be a much better optimization function.

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title: Thermal-Economic Modularization of Small, Organic Rankine Cycle Power Plants for Mid-Enthalpy Geothermal Fields
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pdf:docinfo:keywords: modularization; geothermal; Organic Rankine Cycle; specific investment cost; mean cash flow
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creator: Yodha Y. Nusiaputra, Hans-Joachim Wiemer, Dietmar Kuhn
dc:subject: modularization; geothermal; Organic Rankine Cycle; specific investment cost; mean cash flow
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