Abstract: In this paper, the typical system of solar energy system: natural circulation system and forced circulation system are analyzed. The two systems are simulated on the TRNSYS platform, and the configuration of the system itself has been discussed. The purpose is to provide reference for the scientific implementation of solar energy architecture integration. On …
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Read moreAbstract: The solid-phase synthesis of Cr-Ca-Sn-Si purple red pigment, the preparation of chrome tin pink stains are studied by using eggshell, which is used as the raw materials introducing the calcium carbonate. Through the experiment of formula is optimized, and by controlling the calcinations temperature and mineralizer measures a series of Cr-Ca-SnSi purple red pigments …
Continue reading “Research on preparation of chrome tin purple red pigment by using eggshell”
Read moreAbstract: In order to study the law of spontaneous combustion in goaf under the condition of gas extraction, the method of beam tube monitoring and numerical analysis is adopted to obtain three dimensional distribution of oxygen concentration and contour map under the condition of different negative pressure. Based on the way of regression analysis, reasonable …
Read moreAbstract: The development of the energy sector in the United States of America (USA) represents a rivalry between two different approaches, which has intensified under the last three American administrations. The competition of approaches is expressed in the confrontation between supporters of energy based on renewable sources and supporters of traditional energy resources. A comparative …
Continue reading “Assessment of the impact of US Energy Policy on world oil prices”
Read moreAbstract: The effects of two anionic dispersants (polymeric-carboxy methyl cellulose: CMC and inorganic-sodium tripolyphosphate: STPP) on the rheological properties of coal water slurries (CWS) of varying solid loading were reported and compared. The rheological data was obtained in the shear rate range of 60-160 s-1 and the data was fitted using power law model. For …
Read moreAbstract: A common challenge faced in underground hardrock mines worldwide is post mining-induced seismicity, as the events have been quite disastrous, causing risk to the structures and lives. In the recent years, many of the worked out mining areas are slowly getting populated and in due course of time shall be posing environmental threat to …
Read moreAbstract: Prediction of pillar stability is one of the most critical tasks in underground mining industries. This pillar stability analysis requires many input parameters and some of them are difficult to be determined. Various statistical based analysis is presented in literature for assessing pillar stability successfully. In the present work, the data from three mines …
Read moreAbstract: Optimal ore body boundary and production area geometry (Stope) are essential to maximize the profit from an underground mining project subject to inherent physical, geotechnical and geological constraints. Number of researches have been introduced for stope boundary optimization but true optimal solution in three dimensional spaces is still out of reach. This article proposed …
Read moreAbstract: Coal is the most abundant fossil fuel resource in India, and the country’s industrial and economic heritage has been built upon indigenous coal. India is the world’s 3rd largest energy consumer after China and USA. However, as the country goes through profound economic and societal transformations, such as economic and population growth, urbanization and …
Read moreThe rheological behaviour of drilling mud formulated with sodium hydroxide extracts of Bitter-leaf (BL), Pawpaw (PL), Almond (AL) and Moringa (ML) leaves applied as surfactant (emulsifiers) was studied. The rheological properties (plastic viscosity (PV), yield point (YP), and gel strength) of the mud were measured using standard procedures. The mud specific gravity for BLEM and …
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