Stories tagged with "molten salt reactor"

Advice to Pres. Obama (#5): One Engineer's Advice for Energy Policy

This article is one of a series of articles, offering energy advice to President Obama and his administration.

The incoming Obama administration has promised a much-needed change in the direction of US energy policy (or non-policy, as some see the current situation).  However, some of those changes appear to be campaign gimmicks or aimed at satisfying special interests rather than solving our various problems.  (The heavy-for-light crude swap in the Strategic Petroleum Reserve proposed in the Obama-Biden energy proposal appears to be one such gimmick.)

For much too long, US energy legislation (I hesitate to call it policy, because it lacks the coherence to justify the label) has been aimed at short-term patches on problems which have only gotten worse.  CAFE regulations have barely held fuel economy steady, while low fuel prices caused consumption to skyrocket.  "Free trade" allowed cheap oil imports to kill movement toward efficiency and substitutes.  The auto industry lobbied against fuel taxes to promote its short-term interest in selling profitable trucks, with the long-term result that all 3 US automakers will go bankrupt in the next year if nothing is done.

We've had change before, but the results put us where we are now.  It's time for the right change. 

On the hazards of ignorance of thermodynamics

The feasibility of non-combustion gas turbines in nuclear reactors

In a discussion about nuclear reactors, a discussion subthread about gas turbines as energy converters ended with this late-arriving statement:

Non-combustion gas turbines are not proven. They're mostly in pilot/research stages. You say that the conditions in non-combustion lower temp operation are more reasonable than in higher temp combustion gas turbines, but the fact that they are not commercially competing with Rankine steam cycles, even in the higher temperature regimes, should caution us not to trivialize the engineering/commercial issues.

The one-week period for comment on the post ended before I could write a response.

What's missing from this analysis?  Let me lay out the pieces: