JPS57112652A - Solar heat collector - Google Patents

Solar heat collector

Info

Publication number
JPS57112652A
JPS57112652A JP55188486A JP18848680A JPS57112652A JP S57112652 A JPS57112652 A JP S57112652A JP 55188486 A JP55188486 A JP 55188486A JP 18848680 A JP18848680 A JP 18848680A JP S57112652 A JPS57112652 A JP S57112652A
Authority
JP
Japan
Prior art keywords
water
pipe
smoothened
volume
heat
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.)
Pending
Application number
JP55188486A
Other languages
Japanese (ja)
Inventor
Naohisa Watabiki
Moriaki Tsukamoto
Takanobu Yamamoto
Kazutake Imani
Isao Sumida
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.)
Hitachi Ltd
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
Hitachi Ltd
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 Hitachi Chemical Co Ltd, Hitachi Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP55188486A priority Critical patent/JPS57112652A/en
Publication of JPS57112652A publication Critical patent/JPS57112652A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
    • F24S40/70—Preventing freezing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To prevent the damage of the heat pipe upon freezing and increase the reliability of the solar heat collector by providing a capillary acting part and a smoothened part for absorbing volmetric expansion of water upon freezing within the heat pipe. CONSTITUTION:The heat collecting part of the heat pipe 1 is constituted by a grooved part 4 and a smoothened part 5. The grooved part 4 causes a capillary operation and improves heat transfer characteristic of the heat pipe 1. The smoothened part 5 is selected to have in inner volume approximately 1.1-1.3 times the volume of water so that water is accumulated upon stopping the operation of the pipe 1. Even when the volume of water expands upon freezing of the smoothened part 5, so far as the volume of water expands over a space 7, the frictional resistance between ice and the smooth face is small, and no large stress is applied upon the pipe, and hence the pipe 1 is not damaged even though water freezes.
JP55188486A 1980-12-29 1980-12-29 Solar heat collector Pending JPS57112652A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55188486A JPS57112652A (en) 1980-12-29 1980-12-29 Solar heat collector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55188486A JPS57112652A (en) 1980-12-29 1980-12-29 Solar heat collector

Publications (1)

Publication Number Publication Date
JPS57112652A true JPS57112652A (en) 1982-07-13

Family

ID=16224569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55188486A Pending JPS57112652A (en) 1980-12-29 1980-12-29 Solar heat collector

Country Status (1)

Country Link
JP (1) JPS57112652A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017072280A (en) * 2015-10-06 2017-04-13 古河電気工業株式会社 heat pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017072280A (en) * 2015-10-06 2017-04-13 古河電気工業株式会社 heat pipe

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