A Soil-Aggregate Crushing-Energy Meter

Aggregate production: Fines generation during rock crushing

The energy required to crush rocks is proportional to the amount of new surface area that is created; hence, a very important percentage of the energy consumed to produce construction aggregates is spent in producing non-commercial fines. Data gathered during visits to quarries, an extensive survey and laboratory experiments are used to explore the role of mineralogy and fracture mode in fines ...

A Global Personal Energy Meter

Abstract. Every day each of us consumes a significant amount of energy, both directly through transportation, heating and use of appliances, and indirectly from our needs for the production of food, manufacture of goods and provision of services. I envisage a personal energy meter which can record and apportion an individual’s energy usage in order to provide baseline information and incentives...

Autonomous Wireless Heat Energy Meter based on Piezoelectric Energy Harvester for Heat Energy Measurement in Building Complexes

This paper presents a platform for power autonomous wireless energy meter device using piezoelectric energy harvesters. This device can be mainly used for measuring the share of heat energy consumption in a fair manner in building complex with central heat energy system. In the suggested device, the piezoelectric energy harvester is also used as a flow-meter to reduce the power consumption of t...

Energy Systems and Crushing Behavior of Fiber Reinforced Composite Materials

Effect of geometry on crushing behavior, energy absorption and failure mode of woven roving jute fiber/epoxy laminated composite tubes were experimentally studied. Investigations were carried out on three different geometrical types of composite tubes (circular, square and radial corrugated) subjected to axial compressive loading. It was observed in axial crushing study that the load bearing ca...

Surfactant effects on soil aggregate tensile strength