Pecologix Political Ecology Blotter

Scallop larval production systems in Norway have changed from the use of batch to continuous flow through systems (FTS) during the last decade. Energy use to heat water in both larval and spat nurseries is considerable. Two experiments (June 2010 and February 2011) using water recirculation technology (RAS) were performed in large scale systems (3500 L [...]

Latent heat storage systems can improve the energy use efficiency and conserve limited energy resources. Microcapsules of lauric acid (LA) as the core and melamineformaldehyde (MF) resin as the shell were prepared as phase change material for latent heat thermal storage by in situ polymerization. The obtained microcapsules were characterized in their surface morphology, particle [...]

Recently, there is growing demand for energy saving technologies in buildings due to global warming and environmental impact issue. As a result to this, energy-efficient technologies are becoming more popular amongst researchers and designers. In this regards, to fulfil energy conservation demands, researchers have focused on the development of advance heat or energy recovery with [...]

Three decades ago, Volkswagen engineer Peter Hofbauer found himself staring at a Beetle engine’s cylinder head—that awkward slab of metal sitting on the combustion chamber—and wondering, Can’t we just replace that thing with more pistons? The answer turned out to be yes, so he eventually started a company, EcoMotors, to do just that. The company’s [...]

Global aluminum demand is anticipated to triple by 2050, by which time global greenhouse gas (GHG) emissions are advised to be cut 50–85% to avoid catastrophic climate impacts. To explore mitigation strategies systematically, a dynamic material flow model was developed to simulate the stocks and flows of the U.S. aluminum cycle and analyze the corresponding [...]

Improved energy efficiency is among the key measures for CO2 emission abatement in the industry. Energy benchmark curves provide data measured at individual plants and they offer a basis to estimate the sectoral energy efficiency improvement potentials (IP) compared to a best practice technology (BPT) currently in operation worldwide. In this paper, we estimate the [...]

From this new analysis, it is found that the studied reverse osmosis desalination plant has very low second law efficiency (<2%) even when using the available energy recovery systems. Therefore, an energy recovery system is proposed using the (PRO) pressure retarded osmotic method. The proposed alternative design has a second law efficiency of 20%, and [...]