fire point
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2021 ◽  
Vol 850 (1) ◽  
pp. 012010
Author(s):  
S Yuvaraj ◽  
C J Thomas Renald ◽  
A P Senthil Kumar ◽  
K Sadesh ◽  
D Naveen Promoth

Abstract In the current age drones are broadly utilized for different applications in pretty much every field. Because of the disturbing expense of the glow fuel utilized in the RC motors, utilization of the equivalent includes a ton of capital. Adding to it, the current fuel brings about intermittent combustion is in demand of alternate fuel. This paper manages the investigation of existing fuel synthesis and discovering the cost required to dispose of the high capital included, so that considerably more tests and study utilizing the RC Engines 2.5 cc can be completed easily. Methanol and Castor oil Combination is considered as an alternate fuel. The approach includes testing of the fuel to decipher the substance parts and their individual pieces through a progression of tests. Followed by the study of possible additives to enhance the performance of the engine without actually altering the timing intervals. The new creation of the fuel showed up is blended in with extraordinary hardware and the equivalent is tried for essential fuel properties viz., Density, Flash point, Fire point, Calorific value, and so forth The productivity arrangement is made utilizing a pulley instrument and the equivalent is tried for both the energizes. Performance of the R/C aircraft engine was tested with existing glow fuel and the new blend. Results are compared and concluded that the designed blend is a potent alternate fuel for R/C aircraft engines. *Future scope: It can be further tested for its SFC and emission standards. The outcome shows that the new fuel is exceptionally cost productive and the essential substance properties are profoundly improved.


2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Fangrong Zhou ◽  
Hao Pan ◽  
Zhenyu Gao ◽  
Xuyong Huang ◽  
Guochao Qian ◽  
...  

In recent years, increasingly severe wildfires have posed a significant threat to the safe and stable operation of transmission lines. Wildfire risk assessment and early warning have become an important research topic in power grid risk assessment. This study proposes a fire prediction model on the basis of the CatBoost algorithm to effectively predict the fire point. Five wildfire risk factors, including vegetation factors, meteorological factors, human factors, terrain factors, and land surface temperature, were combined using the feature selection method on the basis of the gradient boosting decision tree model and principal component analysis to achieve dimensionality reduction of redundant data and create a fire prediction model. The MODIS fire point product is used as the model evaluation data. The verification result uses the AUC value as the evaluation factor. The accuracy of the model is 0.82, and the AUC value is 0.83. The obtained fire point evaluation results are in good agreement with the actual fire points. Results show that this model can effectively predict the risk of wildfires.


Author(s):  
Dana Kareem Hameed

Fresh engine oils or engine lubricants lose some of their properties during service, engine lubricant deterioration leads to change in oil properties, which ultimately have effect on engine overall performance.  Therefore, it is very important to characterize used engine lubricants at different using conditions to check the performance and ability of existing oils, which in turn protects engine parts and also designs new formulations to produce better type of engine oil or improve the existing oil. Therefore, optimizing engine oil lubricant changing time is very important for reducing environmental impact but renewing engine lubricant before it is due rises a customer’s cost. In this study, the most significant parameters such as kinematic viscosity, flash point and fire point were chosen to determine the changes and deterioration in engine oil properties. The oil samples were multigrade fully synthetic with SAE gradation 10W-30 grand ecodrive is used in 5 different passenger cars. Having information about these properties are crucial chemical and physical behaviours of engine oils and for keeping engine’s lifecycle. The test results of this work show that after 10,000 km, 10W-30 Delta NL motor oil brand (special synthetic with API SL) oil properties such as kinematic viscosity at cold start, 40 °C and 100 °C decreased 22.92%, 23.61% and 22.92% respectively. In addition, both flash point and fire point decreased 15.6% and 14.22% consecutively for the base properties, and according to the test results this type of engine oil is suitable to use for 10,000 km.


Author(s):  
R. Vinodhkumar ◽  
P. Vinodhkumar

The use of plastic and related materials is increasing exponentially due to tremendous growth in population, urbanization and changed life style leads to widespread littering of plastic on the landscape. Disposal of waste plastic is a serious problem globally due to their non-biodegradability and hazardous to human healths, since these are not disposed scientifically and thus, create ground and water. If this curse to mankind in the form of waste plastic is used as a boon for mankind by using it as additives in road construction, it will proved to be a best solution over worst road condition. In the present paper techniques has been developed to use plastic waste for construction of bituminous roads and flexible pavements. In general bitumen is used as binder in road construction. Binding properties of this bitumen can be modified by blending it with waste plastic pieces. It can be used for construction purpose. Keywords— Bitumen, Coarse Aggregate, Ductility Test, Flash and Fire Point test, Plastic Waste


2021 ◽  
Vol 35 (2) ◽  
pp. 124-133
Author(s):  
Jung-Ju Park ◽  
Euy-Hong Hwang ◽  
Don-Mook Choi

According to the current firefighting facility ordinance, connecting water pipes can be more than five stories in length, and the installation standard is applied to specific objects with a total floor area of > 6,000 m<sup>2</sup> or more than seven stories. This standard is intended to enable fire brigades to quickly move to a fire point and extinguish a fire with extinguishing water supplied smoothly. However, the strict fire safety standards make it possible to install both the connecting water pipe facility and the indoor fire hydrant and sprinkler connecting the water outlet, thus creating a fire extinguishing facility that firefighters cannot use at the fire site. In this study, both domestic and foreign standards and fire cases of consolidated water pipes were reviewed, and various problems were analyzed through field surveys, experiments, and surveys. In addition, using the engineering mathematical calculation method and mathematical calculation program, it was confirmed that direct delivery to the 50th floor is possible with the A1 pump on fire trucks. The fire safety standards have been revised to ensure that fire brigades can extinguish fires under any circumstances, and it is suggested that piping should be installed.


2021 ◽  
Vol 35 (2) ◽  
pp. 124-133
Author(s):  
Jung-Ju Park ◽  
Euy-Hong Hwang ◽  
Don-Mook Choi

According to the current firefighting facility ordinance, connecting water pipes can be more than five stories in length, and the installation standard is applied to specific objects with a total floor area of > 6,000 m<sup>2</sup> or more than seven stories. This standard is intended to enable fire brigades to quickly move to a fire point and extinguish a fire with extinguishing water supplied smoothly. However, the strict fire safety standards make it possible to install both the connecting water pipe facility and the indoor fire hydrant and sprinkler connecting the water outlet, thus creating a fire extinguishing facility that firefighters cannot use at the fire site. In this study, both domestic and foreign standards and fire cases of consolidated water pipes were reviewed, and various problems were analyzed through field surveys, experiments, and surveys. In addition, using the engineering mathematical calculation method and mathematical calculation program, it was confirmed that direct delivery to the 50th floor is possible with the A1 pump on fire trucks. The fire safety standards have been revised to ensure that fire brigades can extinguish fires under any circumstances, and it is suggested that piping should be installed.


2021 ◽  
Vol 39 (4) ◽  
pp. 1043-1049
Author(s):  
A.A. Murana ◽  
A.A. Abdulkarim ◽  
A.T. Olowosulu

This work evaluate the influence of waste pure water sachet (WPS) as a modifier in Hot Mix Asphalt (HMA). The properties of the constituent materials were determined. Modified HMA samples were prepared at varying concentration of 2, 4, 6, 8 and 10% WPS content by weight of the Optimum Binder Content (OBC). The properties of the modified HMA were determined using Marshall Method of mix design. The properties of the constituent materials showed that they are suitable for HMA production. The modified bitumen showed an increase in softening point (61 – 73.5%), flash point (258 – 2820C), fire point (289 – 3110C) and ductility (92.67 –118.67cm) as the WPS content increases from 2% to 10% while decrease in penetration (62.33 – 56.5mm) as WPS content increases from 2% to 6%. Stability and Bulk density increases from 4.64kN to 8.84kN and 2.21g/cm3 to 2.34g/cm3 respectively while flow, voids in mineral aggregates (VMA) and Air voids decreases from 3.6 to 2.98mm, 23.85 to 20.16% and 19.73 to 13.97% respectively as the WPS content was increased from 2 to 8%. An optimum polyethylene from WPS modifier content of 8% by weight of the OBC is  recommended for use in the HMA. Keywords: Bitumen, Hot Mix Asphalt, Pure Water Sachet, modified bitumen, Marshall Properties, Polyethylene.


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