FR2234532A1 - Heat exchanger - employing electrically initiated exothermic chemical reaction in enclosed metal tube - Google Patents

Heat exchanger - employing electrically initiated exothermic chemical reaction in enclosed metal tube

Info

Publication number
FR2234532A1
FR2234532A1 FR7322268A FR7322268A FR2234532A1 FR 2234532 A1 FR2234532 A1 FR 2234532A1 FR 7322268 A FR7322268 A FR 7322268A FR 7322268 A FR7322268 A FR 7322268A FR 2234532 A1 FR2234532 A1 FR 2234532A1
Authority
FR
France
Prior art keywords
heat exchanger
chemical reaction
metal tube
exothermic chemical
vol
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.)
Granted
Application number
FR7322268A
Other languages
French (fr)
Other versions
FR2234532B1 (en
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.)
Societe Nationale des Poudres et Explosifs
Original Assignee
Societe Nationale des Poudres et Explosifs
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 Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs
Priority to FR7322268A priority Critical patent/FR2234532A1/en
Publication of FR2234532A1 publication Critical patent/FR2234532A1/en
Application granted granted Critical
Publication of FR2234532B1 publication Critical patent/FR2234532B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion

Abstract

Very high rates of heat transfer are derived from oxidn-redn. reactions, which result in no change in vol., between solid materials in a sealed spiral tube. Typical materials are 63% CuO/37% Zr mixts. ignited electrically. Due to the high heat of reaction from small vols. of material, the exchanger has a small vol. with low thermal inertia, thereby contributing to a very high rate of heat liberation for a shot period of time. For example, a 15 gram charge can transfer 10Kcal to water in 0.815 seconds. Used for almost instantaneous heating applications where light weight is required e.g. for heating combustion air in the cold starting of internal combustion engines. Completely sealed unit eliminates pollution risk.
FR7322268A 1973-06-19 1973-06-19 Heat exchanger - employing electrically initiated exothermic chemical reaction in enclosed metal tube Granted FR2234532A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7322268A FR2234532A1 (en) 1973-06-19 1973-06-19 Heat exchanger - employing electrically initiated exothermic chemical reaction in enclosed metal tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7322268A FR2234532A1 (en) 1973-06-19 1973-06-19 Heat exchanger - employing electrically initiated exothermic chemical reaction in enclosed metal tube

Publications (2)

Publication Number Publication Date
FR2234532A1 true FR2234532A1 (en) 1975-01-17
FR2234532B1 FR2234532B1 (en) 1976-04-30

Family

ID=9121162

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7322268A Granted FR2234532A1 (en) 1973-06-19 1973-06-19 Heat exchanger - employing electrically initiated exothermic chemical reaction in enclosed metal tube

Country Status (1)

Country Link
FR (1) FR2234532A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004104490A1 (en) * 2003-05-21 2004-12-02 Alexza Pharmaceuticals, Inc. Self-contained heating unit and drug-supply unit employing same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7402777B2 (en) 2004-05-20 2008-07-22 Alexza Pharmaceuticals, Inc. Stable initiator compositions and igniters

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004104490A1 (en) * 2003-05-21 2004-12-02 Alexza Pharmaceuticals, Inc. Self-contained heating unit and drug-supply unit employing same
WO2004104491A3 (en) * 2003-05-21 2005-01-06 Alexza Molecular Delivery Corp Percussively ignited or electrically ignited self-contained heating unit and drug-supply unit employing same
EP2096374A3 (en) * 2003-05-21 2012-01-25 Alexza Pharmaceuticals, Inc. Self-contained heating unit and drug-supply unit employing same

Also Published As

Publication number Publication date
FR2234532B1 (en) 1976-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse