Comparisons of Temperature and Heat Flux in Furnaces Controlled by Different Types of Temperature Sensors

Sultan, Mohamed A.

doi:10.1520/jai102334

Cited by 5 publications

(4 citation statements)

References 7 publications

(9 reference statements)

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“…The heat flux for the F2 furnace curve would have continued to increase until approximately 60 minutes when the decay phase of the programed furnace curve began. Based on previous work, the heat flux during the standard fire curve would have continued to roughly 175 kW/m 2 at 2 hours . While the peak heat flux occurred faster in the design fire furnace curves (F1 and F2) when compared with the standard fire curve, the maximum heat fluxes are still below what would be expected in an actual fire compartment.…”

Section: Discussionmentioning

confidence: 90%

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Simulating real compartment fire conditions in a furnace

et al. 2019

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Summary In the United States, wood has been traditionally used in residential construction. However, the combustibility of wood still limits its use as a building material in prescriptive building codes, and to overcome the limitations, performance‐based codes can be used. In order to properly analyze performance‐based designs, more information on the fire performance of materials is required, including fire performance under different fire exposures. The char rate when timber elements are exposed to the standard time‐temperature curve have been well characterized and can be used to determine the fire‐resistance rating. However, much less is known about the rate of char formation under other fire exposures and time‐temperature curves. In this study, we used time‐temperature data from full‐scale compartment fire tests and applied that data in an intermediate‐scale horizontal furnace. By measuring the furnace temperature, fuel consumption, and heat flux during the various tests, we identified that the furnace could closely replicate the shape of a real time‐temperature fire curve from a ventilation controlled compartment. However, the furnace fell short in terms of meeting the peak temperatures at flashover and heat fluxes expected in a real compartment fire.

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Section: Discussionmentioning

confidence: 90%

“…Sultan, et al found that the furnace temperature measuring device response time is crucial in assessing building elements performance particularly in a short duration tests . The furnace temperatures here were controlled based on measurements made by thermocouples inside protection pipes as specified in ASTM E119 .…”

Section: Discussionmentioning

confidence: 99%

Simulating real compartment fire conditions in a furnace

et al. 2019

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“…The plate thermometer measures the effective temperature of the specimen inside a refractory furnace during a fire-resistance test [42]. Additionally, the plate thermometer can also be used for measuring heat flux in several fire experiments [43][44][45][46]. The construction of the plate thermometer is given in EN1363-1 and ISO 834-1.…”

Section: Fire-resistance Furnacesmentioning

confidence: 99%

Fire-Resistance Testing Procedures for Construction Elements—A Review

Chaturvedi

Vedrtnam

Youssef

et al. 2022

Fire

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Fire accidents are a significant risk to human life and civil infrastructure. As a countermeasure, the regulatory bodies of different countries have established standards for evaluating the performance of construction elements during fire exposure. ISO 834 is the globally accepted fire-resistance testing standard. Other standards include ASTM E119, BS 476, IS 3809, JIS A 1304, AS 1503, EN 1363, and GB/T 9978, which are utilized by the US, Britain, India, Japan, Australia, Europe, and China, respectively. This article presents a summary and comparison of the fire-resistance testing standards. In reality, standard tests for isolated structural members may not efficiently portray realistic fire scenarios due to the fire location, its intensity, etc. Thus, researchers have utilized a variety of specialized setups and full-scale non-standard fire tests to fulfill their research objectives. The article includes a summary of selected full-scale, ad hoc, and specialized setups that were reported in the literature. The article highlights the need for timely updates of fire standards to accommodate the testing of newly developed construction materials, structural systems, and possible regional fire scenarios. The article also identifies the research areas that require significant focus in experimental structural fire-resistant testing.

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“…What is more, the average temperature of the furnace during the test is measured by several Type K chromel-alumel thermocouples which are placed in specimen (Mostafaei, 2013). However, it has been stated that there exists a significant difference between furnace temperatures measured by different types of thermocouples, expecially at the begning of the operation (Sultan, 2010). Besides, due to the high costs of furnaces, many specimens were tested in a single furnace at the same time (Anagnostopoulos, Sideris, & Georgiadis, 2009).…”

Section: Conventional Fire Tests Of Concretementioning

confidence: 99%

Fire Performance of High Strength Concrete using a Novel Fire Testing Method

Zhu¹

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Comparisons of Temperature and Heat Flux in Furnaces Controlled by Different Types of Temperature Sensors

Cited by 5 publications

References 7 publications

Simulating real compartment fire conditions in a furnace

Simulating real compartment fire conditions in a furnace

Fire-Resistance Testing Procedures for Construction Elements—A Review

Fire Performance of High Strength Concrete using a Novel Fire Testing Method

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