Potential Shortage of Fracking Sands

A short time ago, following an article in the February 2015 Issue of Materials World Magazine on  “Inside Fracking Fluids” I wrote a letter pointing out that it overlooked one of the most important constituents ” fracking sand”. The article is available on the internet  My letter was based on what I had read in an American […]

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A Claverton Group Think Tank Member Discusses the Real Efficiency of a CCGT

“55% efficient CCGTs” (David Olivier)  – no such thing.  The headline efficiencies cited now are 58% but they deliberately play a marketing trick in pretending that the latent heat of vaporisation in the wettish steam within the OCGT exhaust that is finally vented to atmosphere after passing through the heat exchanger is somehow doing useful […]

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