| 1. |
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
- Evegren, Franz, et al.
(författare)
-
Fire testing of external combustible ship surfaces
- 2014
-
Ingår i: Proceedings of 11th International Symposium on Fire Safety Science. Christchurch, New Zealand. 2014-02-13. - : International Association for Fire Safety Science. ; , s. 905-918
-
Konferensbidrag (refereegranskat)abstract
- Reduced weight makes use of fiber reinforced polymer composite desirable in maritime construction applications. Exterior ship surfaces in combustible materials are although not covered by firesafety regulations and their fire protection is therefore a key issue. This paper reports how SP FIRE 105, a standardized test method for testing reaction to fire properties of façade systems, was adjusted and used to evaluate the potential for fire growth on external combustible ship surfaces; in particular fiber reinforced polymer composite surfaces protected with active or passive measures. The trials show that the test method is highly suitable but that some adjustments could be made to reduce uncertainties; in particular to use a gas burner instead of a heptane pool fire source and to add a strong criterion for when to activate active measures. Further efforts should also be made to develop suitable performance criteria, which were suggested to be based on the produced heat and the gas temperatures at the top of the panel.
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
|
|
| 8. |
- Evegren, Franz, et al.
(författare)
-
Structural fire integrity testing of lightweight multiple core sandwich structures
- 2017
-
Ingår i: Progress in the Analysis and Design of Marine Structures - The 6th International Conference on Marine Structures (MARSTRUCT 2017). - : CRC Press. ; , s. 869-876
-
Konferensbidrag (refereegranskat)abstract
- Lightweight structures become increasingly important to reduce environmental impact and to improve payload/deadweight ratio of ships. Significant weight savings can be accomplished by replacing steel with fibre reinforced polymer (FRP) sandwich panels. An assessment is then necessary to ensure that equivalent fire safety is provided, since these structures are combustible. To support such assessments, this paper presents results from vertically loaded fire resistance tests of two structures: (1) a “conventional” FRP sandwich bulkhead with thermal insulation (providing load carrying fire resistance for 60 minutes) and (2) a multiple core FRP sandwich bulkhead without insulation. Both bulkheads were constructed for and tested with the same design load. The multiple core sandwich bulkhead demonstrated structural fire integrity performance well beyond 60 minutes whilst having a significantly lower structural weight and thickness. The new type of multiple core sandwich structure thus provides great potential, both from a weight-savings and a fire safety perspective.
|
|
| 9. |
|
|
| 10. |
- Larsson, Ida, et al.
(författare)
-
Assessment of the Self-heating Potential of Wood Pellets
- 2012
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The use of biomass pellets is increasing. As a consequence, large indoor storage facilities are needed along the transportation chain. The increased production volumes, transportation, handling and storage of pellets result in increased risks. A number of fire incidents due to spontaneous ignition in wood pellets have been reported. Increased efforts concerning safety and quality assurance are, therefore, important. The aim of the present work is to provide methods for estimating risks for self-heating from pellets stored in bulk quantities. The experimental work ranges from small-scale characterizations to medium-scale storage tests and includes several different types of pellets. One aim has been to develop small scale screening methods to assess the propensity for self-heating, thereby trying to define the specific type of “activity” occurring in the pellets as well as characterising it. Isothermal calorimetry (micro calorimeter) has been used as small scale screening test method and the results has then been validated with crossing point tests and in medium scale tests (1 m3). Thirteen samples from different types of pellets have been ranked relative to each other in micro calorimeter tests and two pellet types; one “reactive” and one “less reactive” were also tested for validation in crossing point and medium scale. The results clearly reveal that different activity levels of the pellets can be measured using small scale screening methods.
|
|
