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L E G A C Y
Citation URL: http://www.osti.gov/geothermal/product.biblio.jsp?osti_id=895110
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| Title: |
Chapter 11. Heat Exchangers |
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| Creator/Author: |
Rafferty, Kevin D.
;
Culver, Gene
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| Publication Date: | 1998 Jan 01 |
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| OSTI Identifier: | OSTI 895110 |
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| Report Number(s): | None |
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| DOE Contract Number: | |
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| Document Type: | Book |
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| Research Org: | Geo-Heat Center, Klamath Falls, Oregon |
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| Sponsoring Org: | USDOE |
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| Subject: | 15 GEOTHERMAL ENERGY |
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| Keywords: | Geothermal Legacy |
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| Description/Abstract: | Most geothermal fluids, because of their elevated
temperature, contain a variety of dissolved chemicals. These
chemicals are frequently corrosive toward standard materials
of construction. As a result, it is advisable in most cases to
isolate the geothermal fluid from the process to which heat
is being transferred.
The task of heat transfer from the geothermal fluid to a
closed process loop is most often handled by a plate heat
exchanger. The two most common types used in geothermal
applications are: bolted and brazed.
For smaller systems, in geothermal resource areas of a
specific character, downhole heat exchangers (DHEs) provide
a unique means of heat extraction. These devices eliminate
the requirement for physical removal of fluid from the
well. For this reason, DHE-based systems avoid entirely the
environmental and practical problems associated with fluid
disposal.
Shell and tube heat exchangers play only a minor role in
low-temperature, direct-use systems. These units have been
in common use in industrial applications for many years and,
as a result, are well understood. For these reasons, shell and
tube heat exchangers will not be covered in this chapter. |
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| Publisher: | |
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| Country of Publication: | US |
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| Language: | English |
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| Size/Format: | Medium: ED |
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| Rights: | |
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| Availability: | |
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| System Entry Date: | 2008 Oct 06 |
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