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Automated Pothole Sealer
Published in P. C. Thomas, Vishal John Mathai, Geevarghese Titus, Emerging Technologies for Sustainability, 2020
Amal Chandra, Alen Mathew, Alfi Ann, V Anagha, Jithin Kurian
The aggregate obtained from the quarry should strictly meet the gradation requirements from the sieve size analysis. The coarse aggregates should be present in major proportions i.e. gravel and sand should contain fine aggregates (silt and clay) in very less or negligible proportions of less than 2% in total. The aggregate should be angular in shape and should meet all the specifications of that used for the dense graded hot mix asphalt such as Bituminous Concrete (BC). The aggregate should be dried before mixing operations and if it is not available dried make it dry by using a dryer of a potable mixing plant. Also, the warming of the aggregate just facilitates good mixing. The temperature should not exceed 65° Celsius and mainly kept between the range of 25–65° Celsius for proper mixing and viscosity and stiffness conditions.
Preparing Fabric Filter Specifications
Published in Howard E. Hesketh, Frank L. Cross, Sizing and Selecting Air Pollution Control Systems, 2020
The system shall be designed such that the characteristics of the exhaust gas exiting the stack do not exceed the following criteria maximum temperature–300° Fmaximum hydrogen chloride concentration–50 ppmmaximum particulate concentration–0.015 gr/dscf @ 7% O2
Gas Treatment
Published in T. H. Christensen, R. Cossu, R. Stegmann, Landfilling of Waste: Biogas, 2020
T. H. Christensen, R. Cossu, R. Stegmann
Among the main LFG components, carbon dioxide (CO2) and nitrogen (N2) are not involved in the combustion process, while oxygen is the oxidizing agent. Trace components do not influence the combustion process, owing to their low concentration in LFG. Nevertheless, they are important with regard to the composition of the exhaust gas in order to not exceed the limit standards of existing emission regulations.
Combustion and performance characteristics of a diesel engine fueled with coal-based hybrid fuel at various altitudes
Published in International Journal of Green Energy, 2023
Surong Dong, Zekun Liu, Ruilin Liu, Guangmen Zhou, Zhongjie Zhang, Qikai Peng
The increasingly stringent regulations also pose challenges to the study of Plateau adaptability of diesel engines. From 2002, the U.S. Federal Environmental Protection Agency required heavy duty vehicles to meet NTE(Not-To-Exceed) emission limits, which limits the emissions of heavy vehicles operating between 0 and 1676 meters (5,500 ft) above sea level, based on in vehicle emission testing techniques. The European requirements for emissions at 1,600 m above sea level meet OBD(On-Board Diagnostics) regulations (Gompel Van and Koornneef 2010). China’s plateau environmental conditions are far more severe than Europe and the United States. To adapt to China’s environmental conditions, China has put forth strict requirements on vehicle emissions in Plateau areas in the six emission regulations that have been promulgated, stipulating that vehicle emissions at 2400 m should meet the emission regulatory limits. The development of a new form of clean alternative fuel combustion technology for diesel engines is of tremendous scientific and practical importance (Elkelawy et al. 2020, 2021).