Material flow

About: Material flow is a research topic. Over the lifetime, 3050 publications have been published within this topic receiving 36844 citations. The topic is also known as: material stream.

Analysis of Engineering Structures and Material Behavior

Abstract: The book discusses the behavior of the material of construction in terms of stress analysis, deformation, creep, structural response modeling, etc. The book analyzes the relationship between stress and deformation, material flow criteria, rheological models used to model the material behavior under load, the mechanical testing of materials in terms of determining material properties and the elements of linear and elastic - plastic fracture mechanics. In the sense of structural analysis, the basic finite element equation as well as structure equation were considered. In addition, different types of finite elements and their features such as stiffness matrix and load vector are also discussed.

Future Raw Material Supply: Opportunities and Limits of Aluminium Recycling in Austria

Abstract: In order to promote sustainable production by using secondary raw material from existing material stocks, complementary to primary raw material, information about the future availability of secondary resources constitutes a prerequisite. In this study, a dynamic material flow model of historic aluminium (Al) flows in Austria is combined with forecasts on future Al consumption to estimate the development of old scrap generation and in-use stocks until 2050. In-use stocks are estimated to increase by 60 % to 515 kg/cap. by 2050 assuming a scenario of moderate economic growth. Old scrap generation in 2050 would thereby more than double (up to 30 kg/cap.) in comparison to the 2010 amounts. Despite this substantial increase in old scrap generation, industrial self-supply from old scrap will probably not exceed 20 %, and final consumption self-supply of Al will not exceed 40 % given present conditions. Opportunities and limits of increasing self-supply through higher collection rates and lower scrap export levels are investigated in this study as the European Raw Material Initiative considers enhanced recycling to be a key measure to ensure future resource supply. Based on these analyses, a self-sustaining Al supply from post-consumer Al is not expected if current trends of Al usage continue. Therefore, comprehensive resource policy should be based on a profound understanding of the availability of primary and secondary resources potentials and their dynamics.

Packing element for methods of exchange or conversion of materials designed as a heat-transfer element

Abstract: A heat-transfer element forms a packing element for material exchange or material conversion processes. The packing element has a plurality of parallel layers which extend in a main direction (15) of material flow and are formed by bodies (1) with hollow spaces (17) for a heat-transfer medium. Each of the heat-transfer bodies (1) has a pair of shells (1a, 1b) made from a foil-like material. The side surfaces of the shells are wave-shaped such that wave crests (141) are inclined with respect to the main direction (15) and that open flow channels crossing each other are provided between adjacent layers in mutual contact. The relief-like profiling of the shells (1a, 1b) provides a distribution and a collection channel system (121, 121') for the heat-transfer medium in addition to the heat-transfer channels (17). On the inner side of the shell pair a plurality of connection points may be made along the flow channels to form a connection which can withstand the excess pressure of the heat-transfer medium. The material of the shells ( 1a, 1b) is preferably a metal alloy and the profiling is made by pressing.

Material flow detecting and controlling method under special environment

Abstract: This invention discloses detection and control method for material flow on special condition. Wherein, the material convey system comprises material outlet warehouse 1 with outlet 5, bracket 2 with weight detection device 3 and belt conveyer 4 under outlet; calculating reduced quantity of material weight for some time to obtain conveyer velocity through material flow, current belt velocity and object determined value and converse the velocity into frequency value for frequency converter; by program, adjusting the conveyer velocity to close to or equal to object value. The invention is benefit to improve produce stability and automation degree, and raises product quality.