Green Construction Towards Reducing Energy Consumption and Minimizing the Carbon Dioxide (CO2) Emissions

Reducing Carbon Dioxide Emissions

DEBATE ABOUT the increasing concentration of carbon dioxide (CO2) in the atmosphere, and fears that it will result in an intensification of the Greenhouse Effect and global warming, have spurred consideration of sustainable development. It has been claimed that technology to improve energy efficiency already exists that is cost-effective without consideration of the gains from abatement of carb...

Reducing energy consumption and CO2 emissions in extractive distillation

In this paper, design and optimization procedures are developed for a conventional extractive distillation sequence and a thermally coupled extractive distillation scheme. The proposedmethodologies detect the optimal values of the design variables in order to guarantee theminimumenergy consumption. It was found that the optimumenergy consumption can be related to the minimum total annual operat...

Approaches to Reducing Carbon Dioxide Emissions

Reducing energy consumption and CO2 emissions in extractive distillation: Part II. Dynamic behavior

The structure of thermally coupled distillation systems offers several control challenges arising from the transfer of vapor (or liquid) streams between columns. In particular, the presence of recycle streams for coupled schemes has led to the notion that control problems might be expected during the operation of these systems, in contrast to the rather well-known behavior of conventional disti...

Selection of Cutting Inserts in Dry Machining for Reducing Energy Consumption and CO2 Emissions

Manufacturing processes are responsible for climate change due to the emissions produced as result of energy consumption. This paper analyzes the influence of the cutting conditions and the characteristics of cutting tools on the energy required in machining processes and the carbon dioxide equivalent (CO2-eq) emissions generated per material removed ratio (MRR) in an effort to define common cr...