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Title: Deep Direct-Use for Industrial Applications: Producing Chilled Water for Gas-Turbine Inlet Cooling

Abstract

Direct use of deep, low-temperature geothermal resources is underutilized due to challenging project economics associated with developing a deep geothermal resource for what are historically small-scale, variable-demand projects. This project assesses the feasibility of geothermal energy integration in natural-gas combined cycle power stations in the Sabine Uplift and Gulf Coast regions of Texas. The low-grade geothermal resource is tapped to drive absorption chillers for production of chilled water at 5-10 degrees C (41-50 degrees F). This chilled water is stockpiled and dispatched to provide turbine inlet cooling (TIC) at the inlet to the compressor of a natural-gas combined cycle power plant, thereby boosting power production during periods of high temperature and high-power demand. This presentation focuses on the system design related to geothermal well-site selection (proximity vs. resource quality), absorption chiller size and location, chilled-water storage capacity, and dispatch logic to realize the maximum financial benefit.

Authors:
 [1]; ORCiD logo [1];  [1];  [1];  [2]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. TAS Energy
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Geothermal Technologies Office (EE-4G)
OSTI Identifier:
1494063
Report Number(s):
NREL/CP-5500-71914
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the Geothermal Resources Council 2018 Annual Meeting: Geothermal's Role in Today's Energy Market, (GRC 2018), 14-17 October 2018, Reno, Nevada
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; deep direct-use; DDU; industrial; absorption cooling; turbine inlet cooling

Citation Formats

Turchi, Craig S, McTigue, Joshua Dominic P, Akar, Sertac, Beckers, Koenraad J, and Tillman, Tom. Deep Direct-Use for Industrial Applications: Producing Chilled Water for Gas-Turbine Inlet Cooling. United States: N. p., 2018. Web.
Turchi, Craig S, McTigue, Joshua Dominic P, Akar, Sertac, Beckers, Koenraad J, & Tillman, Tom. Deep Direct-Use for Industrial Applications: Producing Chilled Water for Gas-Turbine Inlet Cooling. United States.
Turchi, Craig S, McTigue, Joshua Dominic P, Akar, Sertac, Beckers, Koenraad J, and Tillman, Tom. Wed . "Deep Direct-Use for Industrial Applications: Producing Chilled Water for Gas-Turbine Inlet Cooling". United States.
@article{osti_1494063,
title = {Deep Direct-Use for Industrial Applications: Producing Chilled Water for Gas-Turbine Inlet Cooling},
author = {Turchi, Craig S and McTigue, Joshua Dominic P and Akar, Sertac and Beckers, Koenraad J and Tillman, Tom},
abstractNote = {Direct use of deep, low-temperature geothermal resources is underutilized due to challenging project economics associated with developing a deep geothermal resource for what are historically small-scale, variable-demand projects. This project assesses the feasibility of geothermal energy integration in natural-gas combined cycle power stations in the Sabine Uplift and Gulf Coast regions of Texas. The low-grade geothermal resource is tapped to drive absorption chillers for production of chilled water at 5-10 degrees C (41-50 degrees F). This chilled water is stockpiled and dispatched to provide turbine inlet cooling (TIC) at the inlet to the compressor of a natural-gas combined cycle power plant, thereby boosting power production during periods of high temperature and high-power demand. This presentation focuses on the system design related to geothermal well-site selection (proximity vs. resource quality), absorption chiller size and location, chilled-water storage capacity, and dispatch logic to realize the maximum financial benefit.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}

Conference:
Other availability
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