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| Title: |
Condensation film coefficients for mixtures of isobutane and isopentane |
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| Creator/Author: |
Tleimat, B.W.
;
Rie, H.
;
Laird, A.D.K.
;
Zhao, S.
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| Publication Date: | None |
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| OSTI Identifier: | OSTI 5263172 |
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| Report Number(s): | LBL-11025; CONF-800806-34 |
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| DOE Contract Number: | W-7405-ENG-48 |
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| Document Type: | Conference |
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| Specific Type: | Technical Report |
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| Coverage: | |
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| Resource Relation: | Conference: 15. intersociety energy conversion engineering conference, Seattle, WA, USA, 18 Aug 1980 |
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| Other Number(s): | |
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| Research Org: | California Univ., Berkeley (USA). Lawrence Berkeley Lab.; California Univ., Richmond (USA). Sea Water Conversion Lab. |
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| Sponsoring Org: | Not Available |
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| Subject: | 15 GEOTHERMAL ENERGY; 2-METHYLBUTANE; FILM CONDENSATION; 2-METHYLPROPANE; BINARY-FLUID SYSTEMS; WORKING FLUIDS; GEOTHERMAL POWER PLANTS; MIXTURES; REYNOLDS NUMBER; TUBES; ALKANES; DISPERSIONS; FLUIDS; HYDROCARBONS; ORGANIC COMPOUNDS; POWER PLANTS; THERMAL POWER PLANTS; VAPOR CONDENSATION |
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| Keywords: | Geothermal Legacy |
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| Description/Abstract: | Research designed to obtain baseline data on heat transfer for working fluids in geothermal binary cycle systems is described. The working fluid loop in the experimental apparatus simulates the binary cycle with steam as the heating fluid and a throttling valve instead of the turbine. Data on film coefficient for the condensation of 90/10 and 80/20 mixtures of isobutane-isopentane on a horizontal tube at various temperatures and condensation rates are presented. Data indicate that mixtures of isobutane-isopentane have lower condensation film coefficients than that of the pure isobutane under equivalent conditions of temperatures and condensation rates. Depending on the mass condensation rate, the film coefficient for the 80/20 mixture can be as low as 30 percent of the film coefficient for pure isobutane at the same mass condensation rate. |
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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; Size: Pages: 6 |
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| Rights: | |
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| Availability: | NTIS, PC A02/MF A01. |
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| System Entry Date: | 2009 Sep 24 |
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