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Posts tagged “otec”

By Robert Rapier on Jul 27, 2010 with 50 responses

The Missing Oil, Death of a Climate Bill, and French Engineering

The Missing Oil I just wanted to briefly touch on three energy stories that were in the news over the past week. The first is that the oil flowing into the Gulf of Mexico seems to be slowing: BP Oil Spill: Clean-Up Crews Can’t Find Crude in the Gulf Thousands of small oil patches remain below the surface, but experts say an astonishing amount has disappeared, reabsorbed into the environment. “[It's] mother nature doing her job,” said Ed Overton, a professor of environmental studies at Louisiana State University. Experts stress that even though there’s less and less oil as time goes on, there’s still plenty around the spill site. And in the long term, no one knows what the impact… Continue»

By Robert Rapier on Feb 22, 2010 with 16 responses

Answering Questions on OTEC – Part II

This is the second installment responding to reader questions and comments on ocean thermal energy conversion (OTEC) by Dr. Robert Cohen. Dr. Cohen’s previous entries are: Ocean Thermal Energy Conversion Potential Markets and Benefits from Ocean Thermal Energy Answering Questions on OTEC – Part I RESPONSE TO COMMENTS RE OCEAN THERMAL ENERGY POSTED ON THE R-SQUARED ENERGY BLOG Robert Cohen, February 16, 2010 Environmental, Operational, and CO2 Issues Since the operation of an ocean thermal plant requires the circulation through the plant of a veritable “river of water”, careful design consideration must be given to minimizing effects on the local and downstream temperature distribution with depth. Hence a lot will depend upon how the effluent seawater is discharged following passage… Continue»

By Robert Rapier on Feb 21, 2010 with 38 responses

Answering Questions on OTEC – Part I

Dr. Robert Cohen has been involved in ocean thermal energy conversion (OTEC) since the early 1970′s. He has posted two guest essays here previously: Ocean Thermal Energy ConversionPotential Markets and Benefits from Ocean Thermal Energy Following both essays, a number of questions and concerns were raised, so I asked Dr. Cohen if he would respond. He has written me a thoughtful and detailed response, and I will present it here in two parts. Dr. Cohen also has a website with more information on OTEC. His contact information is available there. Part I is a general commentary on history, current status, and the projections for cost and a market-entry outlook. Part II will delve deeper into the engineering and environmental questions… Continue»