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Previous| Title: | Transient Temperature Measurement Errors | ||||
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| Author: | N.R. Keltner, B.L. Bainbridge | ||||
| Abstract: | The estimation of transient temperature measurement errors is often required to help understand thermal experiments and improve the accuracy of estimated thermal parameters. Thermal response models used in conjunction with experimental techniques are very effective. A hybrid of finite differences and the Unsteady Surface Element method is developed and used for modeling temperature measurements made with intrinsic thermocouples and resistance temperature detectors. In the latter case, experimental data obtained with the Loop Current Step Response method is used to estimate model parameters. | ||||
| Report: | FSR-0104 | Pages: | 7 | Size: | 737 KB |
| Title: | Water Mist Fire Protection Systems For Telecommunications Switch Gear And Other Electronic Facilities | ||||
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| Author: | Andrew T. Hills, Terence Simpson, David P. Smith | ||||
| Abstract: | Although water is known to be an effective Class A and B fire suppressant, skepticism remains over its use in Class C applications due to its conductivity. Therefore, a joint Kidde-Fenwal/GTE/FSI Research feasibility study into water mist fire protection in live telecommunication switch gear was carried out. The switch gear bays, which were composed of vertically mounted, parallel printed circuit boards (PCBs), were found to be a considerable fire threat. A localized �in cabinet� fire suppression system comprising single fluid spray nozzles operating at high pressure was used. Test fires were extinguished in 1-2 seconds using less than 1 L (0.26 US gal) of water. In addition, the current trips contained in the switch were activated when water was incident and this result, coupled with the low volume of water used, reduces the electric shock hazard considerably. Therefore, water was found to be an efficient and safe fire suppressant in switch gear. Since these initial experiments, further tests have been carried out on alternative equipment supplied by Mercury Communications, for which findings are briefly presented. |
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| Report: | FSR-0024 | Pages: | 19 | Size: | 776 KB |
| Title: | What Everyone Should Know About Fire Retardant for Plastics | ||||
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| Author: | Charles D. Storrs | ||||
| Abstract: | Fuel, oxygen, and heat sufficient to raise the material to its ignition temperature must be presented to produce a flame. The effect the fire-retardant system will have on each of these components must be considered during the development of effective fire-retardant polymer formulations. | ||||
| Report: | FSR-0231 | Pages: | 4 | Size: | 488 KB |
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