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Title: THE INTEGRATION OF PROCESS HEAT APPLICATIONS TO HIGH TEMPERATURE GAS REACTORS

Abstract

A high temperature gas reactor, HTGR, can produce industrial process steam, high-temperature heat-transfer gases, and/or electricity. In conventional industrial processes, these products are generated by the combustion of fossil fuels such as coal and natural gas, resulting in significant emissions of greenhouse gases such as carbon dioxide. Heat or electricity produced in an HTGR could be used to supply process heat or electricity to conventional processes without generating any greenhouse gases. Process heat from a reactor needs to be transported by a gas to the industrial process. Two such gases were considered in this study: helium and steam. For this analysis, it was assumed that steam was delivered at 17 MPa and 540 C and helium was delivered at 7 MPa and at a variety of temperatures. The temperature of the gas returning from the industrial process and going to the HTGR must be within certain temperature ranges to maintain the correct reactor inlet temperature for a particular reactor outlet temperature. The returning gas may be below the reactor inlet temperature, ROT, but not above. The optimal return temperature produces the maximum process heat gas flow rate. For steam, the delivered pressure sets an optimal reactor outlet temperature based onmore » the condensation temperature of the steam. ROTs greater than 769.7 C produce no additional advantage for the production of steam.« less

Authors:
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
DOE - NE
OSTI Identifier:
1031701
Report Number(s):
INL/CON-11-22179
TRN: US1200154
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Conference
Resource Relation:
Conference: 2011 International Mechanical Engineering Congress and Exposition,Denver, Colorado,11/11/2011,11/17/2011
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 03 NATURAL GAS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 22 GENERAL STUDIES OF NUCLEAR REACTORS; AVAILABILITY; CARBON DIOXIDE; COAL; COMBUSTION; ELECTRICITY; FOSSIL FUELS; GAS FLOW; GASES; GREENHOUSE GASES; HEAT TRANSFER; HELIUM; MECHANICAL ENGINEERING; NATURAL GAS; PROCESS HEAT; PRODUCTION; STEAM; HTGR Process Heat Integration

Citation Formats

McKellar, Michael G. THE INTEGRATION OF PROCESS HEAT APPLICATIONS TO HIGH TEMPERATURE GAS REACTORS. United States: N. p., 2011. Web. doi:10.1115/IMECE2011-64124.
McKellar, Michael G. THE INTEGRATION OF PROCESS HEAT APPLICATIONS TO HIGH TEMPERATURE GAS REACTORS. United States. doi:10.1115/IMECE2011-64124.
McKellar, Michael G. Tue . "THE INTEGRATION OF PROCESS HEAT APPLICATIONS TO HIGH TEMPERATURE GAS REACTORS". United States. doi:10.1115/IMECE2011-64124. https://www.osti.gov/servlets/purl/1031701.
@article{osti_1031701,
title = {THE INTEGRATION OF PROCESS HEAT APPLICATIONS TO HIGH TEMPERATURE GAS REACTORS},
author = {McKellar, Michael G},
abstractNote = {A high temperature gas reactor, HTGR, can produce industrial process steam, high-temperature heat-transfer gases, and/or electricity. In conventional industrial processes, these products are generated by the combustion of fossil fuels such as coal and natural gas, resulting in significant emissions of greenhouse gases such as carbon dioxide. Heat or electricity produced in an HTGR could be used to supply process heat or electricity to conventional processes without generating any greenhouse gases. Process heat from a reactor needs to be transported by a gas to the industrial process. Two such gases were considered in this study: helium and steam. For this analysis, it was assumed that steam was delivered at 17 MPa and 540 C and helium was delivered at 7 MPa and at a variety of temperatures. The temperature of the gas returning from the industrial process and going to the HTGR must be within certain temperature ranges to maintain the correct reactor inlet temperature for a particular reactor outlet temperature. The returning gas may be below the reactor inlet temperature, ROT, but not above. The optimal return temperature produces the maximum process heat gas flow rate. For steam, the delivered pressure sets an optimal reactor outlet temperature based on the condensation temperature of the steam. ROTs greater than 769.7 C produce no additional advantage for the production of steam.},
doi = {10.1115/IMECE2011-64124},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {11}
}

Conference:
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