Taking into account the experience and results of the investigation of certain events on the gas and associated facilities (fire, explosion, poisoning, fumes, prohibited manipulation, etc.) from the perspective of a forensic expert we have prepared material, which will be published on the continuation. Contents of this material is based on real cases. Material according to the extent of individual reported cases includes:
The purpose of the material is to highlight the potential risks when designing, installing, testing, inspecting, maintening and operating of gas and associated equipment and also to identify possible breaches of regulations and procedures in everyday practice.
Individual cases are accompanied by photographs, measurements and in some cases by used calculations.
The material will be regularly complemented by other practical cases.
Russia is estimated to have slowly becoming a leading global player in the noble biofuels. Double-digit growth was expected according to the latest figures revises about 2/3 value, which still represents a significant strengthening of the production of wood pellets in the Russian region, but at a slower rate.
Combined power control of central heating includes two components. The condition of successful solutions and the correct operation of dynamic systems is to understand their meaning. The article presents a normally inaccessible information and comprehensive look at this issue from the base of TTV (think-tank heating).
Combined power control of central heating includes two components. The condition of successful solutions and the correct operation of dynamic systems is to understand their meaning. The article presents a normally inaccessible information and comprehensive look at this issue from the base of TTV (think-tank heating).
Air pollution caused by dust particles poses a serious problem for human health and environment. The negative effect of the ultrafine dust particles (particles with the size less than 100 nm) on the human health depends for example on the number of particles, specific surface of the particles, respirability and ability to bind other chemical compounds (e.g. PAHs). The paper summarizes findings gained from combustions tests of brown coal in small combustion devices. The combustion tests were performed in typical hot water boilers at the nominal power. The low-pressure cascade impactor DLPI was used for the characteriza tion of the ultrafine particles.
This example happens every time we find that previous approaches and knowledge need correction, or abandon, or even to be thrown away. Sometimes however, we do not want to leave something that has not fully fulfill our requirements. Either it is a question of habit, or we do not know that there are better things.
How does the subsidy for boilers with biplanes? It's a fairy tale, and fairy tales are mere fiction. In other words, every author in his tale that might suggest what he wants. This will, inter alia, trying to do a little of the horror genre enjoyable and I hope too that it reduces the possibility for me to sue the speech.
Article features basic relations for determination of heat loss at warmwatter tube with thermal isolation from differences of flue watter temperature and ambient air temperature at planar and cylindric form. Calculation coming-out from coefficient of heat transmission according to coefficient of thermal conductivity and coefficents of heat transfer.
Problems fraudulent coal boilers included in EU subsidies for replacement of old boilers in the Czech Republic has already begun in a big deal in czech media. Czech Television aired May 30, 2016 report on substandard subsidized boiler and identified him as FD Automat by Slovak producer ATTACK, s.r.o.
The contribution evaluates the effect of three important parameters (combustion air shortage, not-well maintained chimney and boiler) on the change in quality of the natural gas combustion and operation safety of the appliance. The common gas boiler with atmospheric burner was used for the experiment. The limited air supply, poor draft conditions and not-well maintained chimney were simulated by closing the chimney damper. The not-well maintained appliance was simulated by covering the boiler heat exchanger. The results show that the combustion gases were released to the testing space at approx. 50% closing of the chimney damper and approx. 80% clogging of the boiler heat exchanger. 10× higher concentrations of poisonous CO comparing to the normal operation were measured for 60% clogging of the boiler heat exchanger. Regular maintenance of boiler and chimney increases operation safety of combustion appliances.
A woman died of CO poisoning perhaps only because her son wanted to save money and he bought and installed a door in his new house. Insufficient air supply to the burning fuel is accompanied by a poorer quality of combustion and thus increased production of poisonous CO. If CO is not safely discharged outside the building by a flue-gas duct, it is only a matter of time when a disaster occurs. During the investigation, the judge asked questions to the workers of Energy Research Center relating to the formation of CO. The answers are listed in this article.
The active fire safety devices, by which are in the contribution meant especially electric fire alarms, stabile fire extinguishing means and devices for smoke and heat removal, are an important part of building security systems. For the proper function of these systems it is necessary to pay attention to the priority how to put into operation the particular device, their coordina tion and interaction between them.
The principles of the prioritizing how to put into the operation the individual active fire safety devices are described on the basis of the reasons for the devices installation and their priority or eventually secondary protection targets. The attention is paid also to the coordina tion of the fire safety means.
Extraction and combustion of coal have changed the world and the climate of our planet within last two hundred years, but both are declining. This fact alongside with many others belongs to key messages of a new, representative publication, the Coal Atlas. Coal has started the industrial revolution and at the same time caused environmental and social destruction of large areas. At present, coal significantly contributes to climate change by being responsible for 43 % of global carbon dioxide emissions and more than one third of all greenhouse gas emissions respectively. Progressive countries are therefore leaving coal behind. What is more, consumption of coal has recently stagnated also in China, so far the biggest consumer. While the coal business seems to be inevitably coming to the end, some investors still hope for a profit. Why some buy something that the others consider as “stranded assets”?
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