scholarly journals Machinery Space Fire Fighting – Modern Alternatives

Author(s):  
T Goode

Machinery spaces in the majority of Royal Navy (RN) vessels use carbon dioxide (CO2) as the primary fire suppressant. While CO2 is very effective for firefighting, particularly in machinery space application, it is harmful to life in the concentrations required for effective fire suppression; exposure to concentrations greater than 15% can cause death within sixty seconds. The use of CO2 and similar fire suppressant systems in machinery spaces presents a risk due to the potential exposure of personnel. This may occur in a fire scenario where personnel are unable to escape the affected compartment, if there is a leak in the system, or due to accidental discharge. These risks are typically mitigated through physical means and procedural controls. However, in the hierarchy of safety controls the primary means should always be the elimination of the hazard. Babcock Energy and Marine undertook a study for the United Kingdom Ministry of Defence (MoD) into alternative methods of firefighting on Royal Navy minor warship machinery spaces with the safety of personnel considered a key requirement. The study identified five alternatives to CO2 available on the market. One particular aerosol fire suppression system was found to be superior to the others for application in small craft. This system is not toxic, non-ozone depleting and leaves almost no residue after application to the affected space, enabling re-entry (provided that the space has been ventilated to remove the products of combustion). The study concluded that traditional methods of fire suppression should be reconsidered across all small craft due to the health and safety issues associated with CO2 and the availability of improved alternatives. This paper considers the use of traditional firefighting systems on naval vessels in light of 21st century health and safety regulations. An assessment of current fire extinguishing agents is presented followed by a case study to determine the most appropriate solution for a minor warship concept with a particular aerosol system being justified as the preferred option. The paper also considers if the same conclusions would be reached for major warships or if the difference in scale results in an alternative solution.

2011 ◽  
Vol 9 (1-2) ◽  
pp. 43-50 ◽  
Author(s):  
Julia Liou ◽  
Catherine Porter ◽  
Thu Quach

The nail salon sector is growing rapidly. Nail salon workers are predominantly Vietnamese immigrant women who are exposed to numerous harmful chemicals in nail care products. The situation is exacerbated by limited safety information, language barriers to information, and lack of government oversight. This brief discusses the health and safety issues faced by workers at the nexus of environmental and worker justice and the policy recommendations by which to address these issues from a public health and regulatory perspective. Although these policy recommendations pertain to California where the sector is largest, they also have far-reaching implications at the national level.


Safety ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 44
Author(s):  
J. L. Gibbs ◽  
K. Walls ◽  
C. Sheridan ◽  
D. Sullivan ◽  
M. Cheyney ◽  
...  

Young adults enrolled in collegiate agricultural programs are a critical audience for agricultural health and safety training. Understanding the farm tasks that young adults engage in is necessary for tailoring health and safety education. The project analyzed evaluation survey responses from the Gear Up for Ag Health and Safety™ program, including reported agricultural tasks, safety concerns, frequency of discussing health and safety concerns with healthcare providers, safety behaviors, and future career plans. The most common tasks reported included operation of machinery and grain-handling. Most participants intended to work on a family-owned agricultural operation or for an agribusiness/cooperative following graduation. Reported safety behaviors (hearing protection, eye protection, and sunscreen use when performing outdoor tasks) differed by gender and education type. Male community college and university participants reported higher rates of “near-misses” and crashes when operating equipment on the roadway. One-third of participants reported discussing agricultural health and safety issues with their medical provider, while 72% were concerned about the health and safety of their family and co-workers in agriculture. These findings provide guidance for better development of agricultural health and safety programs addressing this population—future trainings should be uniquely tailored, accounting for gender and educational differences.


2021 ◽  
Author(s):  
Weixin Zhang ◽  
Lin Wu ◽  
Dujin Qiao ◽  
Jie Tian ◽  
Yan Li ◽  
...  

Safety issues limit the large-scale application of lithium-ion batteries. In this work, a new type of N-H-microcapsule fire extinguishing agent is prepared by using melamine-urea-formaldehyde resin as shell material, perfluoro(2-methyl-3-pentanone)...


Sensors ◽  
2021 ◽  
Vol 21 (7) ◽  
pp. 2406
Author(s):  
Mashaalah Zarejousheghani ◽  
Parvaneh Rahimi ◽  
Helko Borsdorf ◽  
Stefan Zimmermann ◽  
Yvonne Joseph

Globally, there is growing concern about the health risks of water and air pollution. The U.S. Environmental Protection Agency (EPA) has developed a list of priority pollutants containing 129 different chemical compounds. All of these chemicals are of significant interest due to their serious health and safety issues. Permanent exposure to some concentrations of these chemicals can cause severe and irrecoverable health effects, which can be easily prevented by their early identification. Molecularly imprinted polymers (MIPs) offer great potential for selective adsorption of chemicals from water and air samples. These selective artificial bio(mimetic) receptors are promising candidates for modification of sensors, especially disposable sensors, due to their low-cost, long-term stability, ease of engineering, simplicity of production and their applicability for a wide range of targets. Herein, innovative strategies used to develop MIP-based sensors for EPA priority pollutants will be reviewed.


2014 ◽  
Vol 915-916 ◽  
pp. 356-361
Author(s):  
Zheng Wen Xie

FDS simulation software was used to establish the full size lampblack physics model of single wind pipe, using the orthogonal design method design of analog calculation conditions, research in the nozzle pressure, the droplet radius, nozzle, flow quantity and injection angle parameters under different conditions of water mist fire extinguishing effect. Based on a full-scale combustion and water mist fire extinguishing experiment, the water mist fire suppression was observed and test analysis etc, to better understand the flue water mist fire extinguishing feasibility, provides the theory basis for the design of efficient, reliable flue fire extinguishing system.


AAOHN Journal ◽  
2007 ◽  
Vol 55 (8) ◽  
pp. 321-325 ◽  
Author(s):  
Belinda J. McGrath

Childcare workers are exposed to several health and safety risks in their work environment, the most common being infectious diseases, musculoskeletal injuries, accidents, and occupational stress. Pregnant childcare workers have an additional risk of potential harm to the fetus. Occupational health nurses can work collaboratively with childcare workers to reduce these risks and provide workplace health promotion programs. This article explores the occupational health and safety issues for childcare workers and suggests health promotion strategies that could be implemented by occupational health nurses working in this arena.


1982 ◽  
Vol 24 (3) ◽  
pp. 337-364 ◽  
Author(s):  
W.B. Creighton

This article examines the increasingly important issue of the role of statutory safety representatives and safety committees in helping to promote and protect the health, safety and welfare of the Australian workforce. It consists first of an examination of the development of statutory provision in this area in the United Kingdom, culminating in the passing of the Health and Safety at Work Act 1974 and the introduction of the far-reaching Safety Representatives and Safety Committees Regulations of 1977. It then describes and analyses the reception of these provisions, and the philosophy which underpins them, in Australia. Thirdly, it attempts to identify and discuss some of the more important legal and practical implications of this kind of statutory provision. There is reason to suppose that some of these issues have not been analysed in sufficient detail in either Britain or Australia, but overall it is clear that a properly structured system of statutory safety representatives/com mittees can play an important and constructive part in helping to promote a proper awareness of health and safety issues in this country.


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