Ten Years of Increased Hydrocarbon Temperature Curves in French Tunnels

Taillefer, Nicolas; Carlotti, Pierre; Larive, Catherine; Lemerle, Christophe; Avenel, R.; Pimienta, Pierre

doi:10.1007/s10694-012-0259-8

Cited by 10 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The latter one was developed as a result of several full scale fire tests where temperatures well in excess of 1100 • C were recorded. The HCM curve is given by [9]:…”

Section: Fire Dynamicsmentioning

confidence: 99%

Small Scale Hydrocarbon Fire Test Concept

et al. 2017

View full text Add to dashboard Cite

Abstract:In the oil and gas industry, hydrocarbon process equipment was previously often thermally insulated by applying insulation directly to the metal surface. Fire protective insulation was applied outside the thermal insulation. In some cases, severe corrosion attacks were observed due to ingress of humidity and condensation at cold surfaces. Introducing a 25 mm air gap to prevent wet thermal insulation and metal wall contact is expected to solve the corrosion issues. This improved insulation methodology does, however, require more space that may not be available when refurbishing older process plants. Relocating structural elements would introduce much hot work, which should be minimized in live plants. It is also costly. The aim of the present study is therefore to develop a test concept for testing fire resistance of equipment protected with only air-gap and thermal insulation, i.e., without the fire-protective insulation. The present work demonstrates a conceptual methodology for small scale fire testing of mockups resembling a section of a distillation column. The mockups were exposed to a small-scale propane flame in a test configuration where the flow rate and the flame zone were optimized to give heat flux levels in the range 250-350 kW/m 2 . Results are presented for a mockup resembling a 16 mm thick distillation column steel wall. It is demonstrated that the modern distance insulation in combination with the heat capacity of the column wall indicates 30+ minutes fire resistance. The results show that this methodology has great potentials for low cost fire testing of other configurations, and it may serve as a set-up for product development.

show abstract

“…The latter one was developed as a result of several full scale fire tests where temperatures well in excess of 1100 • C were recorded. The HCM curve is given by [9]:…”

Section: Fire Dynamicsmentioning

confidence: 99%

Small Scale Hydrocarbon Fire Test Concept

et al. 2017

View full text Add to dashboard Cite

show abstract

“…According to this temperature-time-curve the temperature in the fire compartment rises within 5 min from ambient temperature to 1200 • C, stays there for 25 min and sinks linearly with time within 110 min down to room temperature. French and Swedish investigations have been based on similar time-temperatures curves [3][4][5].…”

Section: Demands On the Fire Protection According To The Rabtmentioning

confidence: 99%

“…), too. But, also other countries have increased their efforts in research, and developed regulations and guidelines to improve the fire safety of their traffic systems [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Fire safety assessment and upgrading of existing traffic tunnels

Diederichs

Bodnárová

Petránek

2013

MATEC Web of Conferences

View full text Add to dashboard Cite

Abstract. Many traffic tunnels in the European Union need records of their conservation and safety status, including fire performance. Besides other countries the German road transport authorities plan to enhance the safety of their tunnels. As an example, the results of investigations performed with a two-tube tunnel in Northern Germany, which has been examined to assess fire safety, is reported. It turned out, that the older tube, which got fire protection boards on the ceilings and the wall crowns, fully fits the demands according to the current rules. The later tube needs an upgrading to avoid catastrophic impairment of air and car traffic in the vicinity of the tunnels. For the retrofitting a number of protection materials are in the market. The execution of the measure requires smart planning as to reach the strived goal.

show abstract

“…Since 2000, French regulation for fire safety in tunnels requires tests to assess the potential impact of spalling on concrete structures [1] CSTB has made a large number of tests on different size specimen, both for research and commercial project. Since tested concrete and test configurations vary from one test to the other, many useful information and teachings could be drawn out this extended experimental feedback.…”

Section: Introductionmentioning

confidence: 99%

Spalling of concrete: A synthesis of experimental tests on slabs

Taillefer

Pimienta

Dhima

2013

MATEC Web of Conferences

Self Cite

View full text Add to dashboard Cite

Abstract. The article reviews the results of many commercial or research tests carried out in CSTB on middle size concrete slabs. They concern 22 concrete slabs, made of normal and high strength concrete, for a rather wide range of thickness and compressive strength classes. Test procedures and a synthesis of main results are presented in order to provide deeper understanding of near-reality conditions of concrete structures. The tests concerned both new and existing tunnels. Results are detailed in relation with main parameters that are identified as impacting spalling in previous studies, such as concrete composition, concrete properties and specimen size.

show abstract

Ten Years of Increased Hydrocarbon Temperature Curves in French Tunnels

Cited by 10 publications

References 2 publications

Small Scale Hydrocarbon Fire Test Concept

Small Scale Hydrocarbon Fire Test Concept

Fire safety assessment and upgrading of existing traffic tunnels

Spalling of concrete: A synthesis of experimental tests on slabs

Contact Info

Product

Resources

About