Daniel Madrzykowski - Academia.edu (original) (raw)

Uploads

Papers by Daniel Madrzykowski

LIST OF TABLES...................................................................................... more LIST OF TABLES................................................................................................. iv

B.4 Spray density figures for burn building tests 13) CAF Solid Stream Mid (upper left), 14) CAF ... more B.4 Spray density figures for burn building tests 13) CAF Solid Stream Mid (upper left), 14) CAF Solid Stream Back (upper right), 15) CAF Solid Stream Mid (lower left), and 16) CAF Fog Mid (lower right

A study was conducted to develop a sprinkler fire suppression algorithm for use with sprinkler ac... more A study was conducted to develop a sprinkler fire suppression algorithm for use with sprinkler activation time models. Large scale experiments were performedto determine the heat release rate (HRR) of selected office fuel packages with and without sprinklers operating. Eight different fuel packages were evaluated. The results from these experiments were used to develop a time dependent HRR reduction factor. HRR R e d u c t i o n F a c t o rwhere: t-Time a f t e r sprinkler a c t i v a t i o n (s) The sprinkler fire suppression algorithm consists of multiplying the HRR reduction factor by the HRR at the time of sprinkler activation, Qact, yielding an expected upper bound to the HRR at a given time after sprinkler activation, Q(t) I for office furnishing fires that are not heavily shielded. This sprinkler fire suppression algorithm can be thought of as a !?zeroth ordert1 fire suppression model for "light hazard" occupancies with a sprinkler spray density of 0.07 mm/s (0.1 gpmift2) or greater .

, when the Omnibus Trade and Competitiveness Act was signed. NIST retains all NBS functions. Its ... more , when the Omnibus Trade and Competitiveness Act was signed. NIST retains all NBS functions. Its new programs will encourage improved use of technology by U.S. industry.

On February 9, 2022, Cobb County Fire and Emergency Services responded to a fire in a ground floo... more On February 9, 2022, Cobb County Fire and Emergency Services responded to a fire in a ground floor unit in a garden apartment building. At arrival, the fire was a post-flashover fire in a bedroom. Initial fire control was attempted by an interior fire attack team which was unable to quickly locate the fire. Exterior suppression through the bedroom window was started prior to discovery of the fire by the interior team. Shortly after fire discovery by the internal team, a mayday was called. Four firefighters from the interior fire attack team received first and second degree burns. This report analyzes photographic, video, and written documentation from the incident to evaluate the timeline of the incident and to assess the fire conditions present. Computer modeling using the Fire Dynamics Simulator (FDS) was performed to provide further insight into the fire conditions and the impact of decisions and actions on the fire ground. Additionally, data from a full scale fire test of a simi...

In no event shall UL be responsible to anyone for whatever use or non-use is made of the informat... more In no event shall UL be responsible to anyone for whatever use or non-use is made of the information contained in this Report, and in no event shall UL, its employees, or its agents incur any obligation or liability for damages including, but not limited to, consequential damage arising out of or in connection with the use or inability to use the information contained in this Report. Information conveyed by this Report applies only to the specimens actually involved in these tests. UL has not established a factory Follow-Up Service Program to determine the conformance of subsequently produced material, nor has any provision been made to apply any registered mark of UL to such material. The issuance of this Report in no way implies Listing, Classification or Recognition by UL, and does not authorize the use of UL Listing, Classification or Recognition Marks or other reference to UL on or in connection with the product or system.

Unwanted fires result in loss of life and property. These fires can also create an adverse econom... more Unwanted fires result in loss of life and property. These fires can also create an adverse economic impact on a community. The investigation of fires provides a means to identify the cause of the fire in order to develop a knowledge base that could enable the elimination of that cause and thus reduce the losses from unwanted fires. Questions about the lack of science in the practice of fire investigation have been raised during the review of several arson homicide cases and a forensics science review by the U.S. National Academy of Sciences. Specifically, the National Academy of Sciences indicated that "...research is needed on the natural variability of burn patterns..." This study addresses that need in two ways: 1. Examining the repeatability of several small fire sources and the fire patterns that were generated by those fires. 2. Examining the capability of numerical models to simulate the fires and the resulting fire patterns based on input data collected from engine...

Journal of Burn Care & Research, 2020

On August 27 and 28, 2018, the American Burn Association, in conjunction with Underwriters Labora... more On August 27 and 28, 2018, the American Burn Association, in conjunction with Underwriters Laboratories, convened a group of experts on burn and inhalation injury in Washington, DC. The goal of the meeting was to identify and discuss the existing knowledge, data, and modeling gaps related to understanding cutaneous thermal injury and inhalation injury due to exposure from a fire environment, and in addition, address two more areas proposed by the American Burn Association Research Committee that are critical to burn care but may have current translational research gaps (inflammatory response and hypermetabolic response). Representatives from the Underwriters Laboratories Firefighter Safety Research Institute and the Bureau of Alcohol, Tobacco, Firearms and Explosives Fire Research Laboratory presented the state of the science in their fields, highlighting areas that required further investigation and guidance from the burn community. Four areas were discussed by the full 24 particip...

Fire Technology, 2019

There has been prior research exploring the exposure of common electrical cords and cables to fir... more There has been prior research exploring the exposure of common electrical cords and cables to fire, but that has traditionally been at the lab scale and under near steady-state exposures. The goal of these experiments was to expose six types of cords and cables in a room-scale compartment with a fuel load sufficient to drive the compartment through flashover. The basic test design was to expose the cords and cables on the floor of a compartment to a growing fire to determine the conditions under which the cord/cable would trip the circuit protection device. All of the cords were energized and installed on a non-combustible surface. The six cables and cords were protected by three different circuit protection devices which were remote from the thermal exposure. This configuration resulted in 18 exposures per experiment. The room fires experiments consisted of three replicate fires with two sofas as the main fuel source, two replicate fires with one sofa as the main fuel source and on...

Journal of fire sciences, 2018

A series of cooking fire experiments were conducted by the National Institute of Standards and Te... more A series of cooking fire experiments were conducted by the National Institute of Standards and Technology (NIST) to examine the hazard associated with cooking oil fires. First, a series of twelve experiments were conducted on a free-standing stove situated in the open. The experiments were based on scenarios outlined in the draft UL 300A standard for fire suppression apparatus. Both gas and electric ranges were tested. The amount of oil and types of cooking pans were varied in the experiments. Oil was heated on a cook top burner until autoignition took place. Measurements of oil and pan temperatures, heat release rates, and heat fluxes characterized the hazard of the ensuing fires. Next, two experiments were conducted using a full-scale residential kitchen arrangement to examine the hazard associated with the free burning oil fires situated within a compartment equipped with commercial furnishings, fiberboard cabinets, and countertops. The dimensions of the test room were 3.6 m × 3....

This work has been completed under the sponsorship and funding of the Federal Railroad Administra... more This work has been completed under the sponsorship and funding of the Federal Railroad Administration. The findings, conclusions and recommendations are those of the authors and the National Institute of Standards and Technology. In addition, due to the interim nature of the report, the contents are provided for information exchange and do not necessarily reflect the technical acceptance by the Federal Railroad Administration for regulatory or other purposes. Certain commercial entities, equipment, or materials may be identified in this document in order to describe an experimental procedure or concept adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the entities, materials, or equipment are necessarily the best available for the purpose.

A study was conducted for the General Services Administration to investigate and quantify sprinkl... more A study was conducted for the General Services Administration to investigate and quantify sprinklered fire exposure on an exit corridor and spaces adjacent to that corridor. The study compares the conditions in the test facility due to a 1 MW crib fire with those of a fire under control by a sprinkler. The effect of a sprinkler positioned in the corridor, outside of the burn room, was also examined. The test facility consisted of a burn room, a target room and a corridor connecting the two rooms. The burn room was a 2.44 m square with a 2.44 m high ceiling. 2.44 m high. room with a total volume of 15 m 3. The target room was protected using a simulated "standard door" (6 mm top cut, 6 mm side cut and a 13 mm undercut). Gas temperatures and concentrations of oxygen, carbon dioxide, and carbon monoxide were measured at selected points' in the three rooms. Tenability was assessed using both temperature and gas toxicity criteria. This assessment showed that sprinklers maintained tenable conditions outside the room of fire origin. The corridor was 12.8 m long, 2.44 m wide and The target room consisted of an entry alcove and a rectangular

Journal of Burn Care & Research, 2020

Fire Technology, 2019

Journal of fire sciences, 2018