GB917714A - Continuous enthalpy meter - Google Patents

Continuous enthalpy meter

Info

Publication number
GB917714A
GB917714A GB3493960A GB3493960A GB917714A GB 917714 A GB917714 A GB 917714A GB 3493960 A GB3493960 A GB 3493960A GB 3493960 A GB3493960 A GB 3493960A GB 917714 A GB917714 A GB 917714A
Authority
GB
United Kingdom
Prior art keywords
stream
temperature
vapour
heat exchanger
determined
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3493960A
Inventor
Norman Harold Wild
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB3493960A priority Critical patent/GB917714A/en
Publication of GB917714A publication Critical patent/GB917714A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
    • G01N25/58—Investigating or analyzing materials by the use of thermal means by investigating moisture content by measuring changes of properties of the material due to heat, cold or expansion
    • G01N25/60—Investigating or analyzing materials by the use of thermal means by investigating moisture content by measuring changes of properties of the material due to heat, cold or expansion for determining the wetness of steam

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

917,714. Determining the liquid content of vapour streams. ESSO RESEARCH & ENGINEERING CO. Sept. 22, 1961 [Oct.12, 1960], No. 34939/60. Class 97 (3). The enthalpy of a vapour stream at temperature T H taken from a header 1 through line 2 is determined by cooling the vapour stream to a temperature T 1 in a heat exchanger 3 so that the vapour stream is condensed completely to the liquid phase, further cooling the stream in a second heat exchanger 8 to a temperature T c , recycling the cold liquid stream through line 4 to heat exchanger 3 so that it is heated substantially to temperature T 1 and determining T 1 - T c such as by thermocouples 11, 12 and galvanometer 13. The proportion of liquid phase present in the vapour stream, e.g. the dryness of steam, is then determined by reference to a calibration chart. In a modification the recycled cold liquid stream is circulated several times through the heat exchangers to enable the dryness of steam to be determined over the full range of 0-100%.
GB3493960A 1960-10-12 1960-10-12 Continuous enthalpy meter Expired GB917714A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3493960A GB917714A (en) 1960-10-12 1960-10-12 Continuous enthalpy meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3493960A GB917714A (en) 1960-10-12 1960-10-12 Continuous enthalpy meter

Publications (1)

Publication Number Publication Date
GB917714A true GB917714A (en) 1963-02-06

Family

ID=10371823

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3493960A Expired GB917714A (en) 1960-10-12 1960-10-12 Continuous enthalpy meter

Country Status (1)

Country Link
GB (1) GB917714A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596516A (en) * 1969-03-27 1971-08-03 Texaco Inc Method and apparatus for measuring steam properties
US4681466A (en) * 1986-01-31 1987-07-21 Texaco Inc. Method for determining quality of reduced quality steam
US5363905A (en) * 1992-03-06 1994-11-15 Bayer Aktiengesellschaft Method of controlling heat exchangers using enthalpy flow as the correcting variable
EP0890833A2 (en) * 1997-07-11 1999-01-13 Mmm Münchener Medizin Mechanik Gmbh Method for determining the calorific state of steam, in particular for determining the wetness of steam and apparatus therefore

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596516A (en) * 1969-03-27 1971-08-03 Texaco Inc Method and apparatus for measuring steam properties
US4681466A (en) * 1986-01-31 1987-07-21 Texaco Inc. Method for determining quality of reduced quality steam
US5363905A (en) * 1992-03-06 1994-11-15 Bayer Aktiengesellschaft Method of controlling heat exchangers using enthalpy flow as the correcting variable
EP0890833A2 (en) * 1997-07-11 1999-01-13 Mmm Münchener Medizin Mechanik Gmbh Method for determining the calorific state of steam, in particular for determining the wetness of steam and apparatus therefore
EP0890833A3 (en) * 1997-07-11 2004-02-11 Mmm Münchener Medizin Mechanik Gmbh Method for determining the calorific state of steam, in particular for determining the wetness of steam and apparatus therefore

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