Dear Captain Rawles,
Are you perchance familiar with Brumby Well Pumps? They work using compressed air and are being manufactured in Australia. From what I can tell, this is a good idea if you can get compressed air to the pump. This leads to the next question: Is there a practical way of operating an air compressor with either a wind turbine or a mechanical means not requiring the grid or a gasoline engine of some sort?
When I lived in Germany I saw a number of old Volkswagen air-cooled engines that had been converted to serve as air compressors. (These operated off of two cylinders and compressed air with the other two). That would work if you had gas, but after the Schumer hits, gas will be too valuable if it can be found at all.
I’d appreciate your advice and maybe some of the readers are familiar with a means of compressing air, off the grid. I know that you have extensive experience at water wells, pumping etc.
Best Regards, – Mike B. in Florida
JWR Replies: The Brumby design is fascinating. I don’t yet have any experience with them, so perhaps some readers that do would like to chime in.
In answer to your question: Yes, it is conceivable that an air compressor could be powered by a wind turbine, but that might require a gearing arrangement to achieve the requisite compression. And I can’t help but wonder about the relative efficiency of compressing air with a windmill to drive a Brumby pump, rather than using traditional direct drive to raise and lower a sucker rod. My gut level instinct is to opt for simplicity, and my suspicion is that adding another energy transformation is almost certainly less efficient–due to friction losses, if nothing else.