The VINNOVA water mist research project: A description of the 500 m3 machinery space tests

Arvidson, MagnusRISE,SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ) (author)

The VINNOVA water mist research project : A description of the 500 m3 machinery space tests

This report describes water mist and water spray system tests inside a simulated machinery space. The tests were conducted inside a compartment measuring 8,0 m by 12,5 m with a ceiling height of 5,0 m. The corresponding volume was 500 m3. The walls and the ceiling were constructed from steel plates. The test compartment replicates an intermediate size machinery space compartment onboard a ship. Either diesel oil or heptane pool fires were used as the fire source. The fires had nominal heat release rates of 500 kW, 1 MW and 2 MW, respectively and were either fully exposed to the water spray or completely shielded by a horizontal obstruction steel plate measuring 2 m by 2 m. Three different systems were tested; (1) a water spray system flowing 500 L/min at 2 bar (this system was designed according to the SOLAS convention), (2) a low-pressure system flowing 97 L/min at 12 bar and (3) a high-pressure system flowing 60 L/min at 70 bar. In addition to the tests using these three systems, free burn tests were conducted inside the compartment. This report contains a description of the test set-up, its instrumentation, the fire test procedures and a limited presentation of the results. A more thorough analysis of the test results will be made in subsequent reports, articles and papers.

Hertzberg, TommyRISE,SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, material (BRm) (author)
RISESP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ) (creator_code:org_t)

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