Reducing energy consumption during bitumen separation from oil sand

Heavy Oil and Tar Sand Bitumen

A brief overview of the geology of heavy oil, bitumen and oil sand deposits

Introduction There are three major oil sand areas in Canada, all in Alberta. There is also an oil sand deposit on Melville Island in the Arctic. The three major oil sand areas are from highest to lowest volume of reserves-in-place (AEUB 2003) Athabasca, Cold Lake and Peace River oil sand areas notwithstanding that bitumen reserves are also evident in subcropping carbonate rocks in Athabasca and...

Reducing Cluster Energy Consumption through Workload Management

Energy consumption is a major and costly problem in data centers. For many workloads, a large fraction of energy goes to powering idle machines that are not doing any useful work. There are two causes of this inefficiency: low server utilization and a lack of power proportionality. We focus on addressing this problem for two workloads: (1) a traditional, front-end web server workload and (2) an...

VLIW Operation Refinement for Reducing Energy Consumption

The demand for mobile computer power has exploded in the recent years. Variable length VLIW processors offer the necessary performance at low power. Software optimizations are necessary to further decrease the energy consumption. In this article we present a compiler optimization which reduces the dynamic power dissipation resulting from the switching activities during instruction fetch. Energy...

Reducing Energy Consumption of Ip--ops

Flip-ops are one of the most power-consuming components of digital circuits. Even when there is no activity at their inputs, the mere triggering of the clock produces a signiicant waste of energy. This paper presents some techniques to reduce power consumption by selectively deactivating the clock when ip-ops do not have to change their value. Several ip-op structures are proposed and criteria ...