Solid transport in rotary drums with different internals

Material Flow in Rotary Drums

The experimental investigation of material flow in rotary drums is studied. An equipment in the size of pilot-scale was used to collect experimental data for investigation of validity of the conventional steady-state model of material flow in rotary drums. Also, the transient data of the time required for material movement in the empty drum up to any specified cross section are also reported. T...

Analysis of Heat Penetration into the Solid Bed of Rotary Drums

The heat penetration into the solid bed of rotary drums was experimentally investigated. An indirect heated rotary drum with a diameter of D=600 mm and a length L=450 mm has been used for this purpose. Temperature profiles of the gas, the drum wall and the solid bed were measured using 16 Type K thermocouples assembled on both a rotating and a fixed rod that attached inside the drum. Hence, the...

Sealing of Rotary Drums for Operation Under Pressurized Conditions

GROUPZ Internals

GROUPZ is a small and simple implementation of the virtually synchronous group communication abstraction [1] using the ZOOKEEPER distributed coordination service [3]. It provides view synchrony with sending view delivery and totally ordered multicast in a closed group [2]. The programming interface is minimalist and closely follows the naming and semantics of most literature on the topic. GROUP...

Locating Segments with Drums in Music Signals Locating Segments with Drums in Music Signals

A system is described which segments musical signals according to the presence or absence of drum instruments. Two different yet approximately equally accurate approaches were taken to solve the problem. The first is based on periodicity detection in the amplitude envelopes of the signal at subbands. The band-wise periodicity estimates are aggregated into a summary autocorrelation function, the...