Extinguishment of liquid fires with sprinklers and water sprays: Description of the tests

Matti Kokkala, Tauno Andsten, Jouni Björkman

Research output: Book/ReportReport

1 Citation (Scopus)

Abstract

An experimental study of extinguishment of liquid pool fires with plain water has been carried out. The number of extinguishment tests was 109, and some additional tests were made to study the free burn characteristics of the pool fires. The extinguishing system consisted of four open sprinklers or nozzles located symmetrically above a pool lying on a weighing platform. The whole test system was set up inside an 18 m high, 14 m wide, and 27 m long tests hall. Tests were made on ten different liquids with a flash point in the range of -6 °C to 234 °C using seven different sprinklers or nozzles. The nozzle height was varied from 3 m to 8 m above the fuel surface. The pool size was varied from 0.4 m2 to 12 m2. Most of the tests were made using a 1.6 m2 circular pool. Temperatures were measured at more than twenty locations both in the plume and in the fuel. Other measurements comprised pressure and flow rate for each nozzle, heat flux to the surroundings, and the weight of the pool. Recordings from each sensor were taken once or twice per second. This report describes the technical details of the experimental arrangement, the direct observations made during the tests, and some direct results of measurements. A more thorough data analysis will be published later.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages186
ISBN (Print)951-38-3384-4
Publication statusPublished - 1989
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports
Number593
ISSN0358-5077

Fingerprint

Nozzles
Fires
Liquids
Water
Weighing
Pressure measurement
Heat flux
Flow rate
Sensors
Temperature

Keywords

  • extinguishing
  • fire extinguishers
  • fire prevention
  • liquids
  • sprinklers
  • nozzles
  • flowe rate
  • heat flux
  • measurement

Cite this

Kokkala, M., Andsten, T., & Björkman, J. (1989). Extinguishment of liquid fires with sprinklers and water sprays: Description of the tests. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 593
Kokkala, Matti ; Andsten, Tauno ; Björkman, Jouni. / Extinguishment of liquid fires with sprinklers and water sprays : Description of the tests. Espoo : VTT Technical Research Centre of Finland, 1989. 186 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 593).
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Kokkala, M, Andsten, T & Björkman, J 1989, Extinguishment of liquid fires with sprinklers and water sprays: Description of the tests. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 593, VTT Technical Research Centre of Finland, Espoo.

Extinguishment of liquid fires with sprinklers and water sprays : Description of the tests. / Kokkala, Matti; Andsten, Tauno; Björkman, Jouni.

Espoo : VTT Technical Research Centre of Finland, 1989. 186 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 593).

Research output: Book/ReportReport

TY - BOOK

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AU - Björkman, Jouni

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N2 - An experimental study of extinguishment of liquid pool fires with plain water has been carried out. The number of extinguishment tests was 109, and some additional tests were made to study the free burn characteristics of the pool fires. The extinguishing system consisted of four open sprinklers or nozzles located symmetrically above a pool lying on a weighing platform. The whole test system was set up inside an 18 m high, 14 m wide, and 27 m long tests hall. Tests were made on ten different liquids with a flash point in the range of -6 °C to 234 °C using seven different sprinklers or nozzles. The nozzle height was varied from 3 m to 8 m above the fuel surface. The pool size was varied from 0.4 m2 to 12 m2. Most of the tests were made using a 1.6 m2 circular pool. Temperatures were measured at more than twenty locations both in the plume and in the fuel. Other measurements comprised pressure and flow rate for each nozzle, heat flux to the surroundings, and the weight of the pool. Recordings from each sensor were taken once or twice per second. This report describes the technical details of the experimental arrangement, the direct observations made during the tests, and some direct results of measurements. A more thorough data analysis will be published later.

AB - An experimental study of extinguishment of liquid pool fires with plain water has been carried out. The number of extinguishment tests was 109, and some additional tests were made to study the free burn characteristics of the pool fires. The extinguishing system consisted of four open sprinklers or nozzles located symmetrically above a pool lying on a weighing platform. The whole test system was set up inside an 18 m high, 14 m wide, and 27 m long tests hall. Tests were made on ten different liquids with a flash point in the range of -6 °C to 234 °C using seven different sprinklers or nozzles. The nozzle height was varied from 3 m to 8 m above the fuel surface. The pool size was varied from 0.4 m2 to 12 m2. Most of the tests were made using a 1.6 m2 circular pool. Temperatures were measured at more than twenty locations both in the plume and in the fuel. Other measurements comprised pressure and flow rate for each nozzle, heat flux to the surroundings, and the weight of the pool. Recordings from each sensor were taken once or twice per second. This report describes the technical details of the experimental arrangement, the direct observations made during the tests, and some direct results of measurements. A more thorough data analysis will be published later.

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Kokkala M, Andsten T, Björkman J. Extinguishment of liquid fires with sprinklers and water sprays: Description of the tests. Espoo: VTT Technical Research Centre of Finland, 1989. 186 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 593).