Stirling engine micro-CHP This technology is new to the market, although the principal of the Stirling engine is well established. The electrical output is small relative to the heat output (about 6:1) but this is not necessarily a problem for micro-CHP.
Kidney pain is caused by infection, inflammation, injury or enlargement of the kidney, or by conditions that block the flow of urine out of the kidney. Pyelonephritis (kidney infection) and kidney stones are the most common causes of kidney pain. Pyelonephritis is often accompanied by other symptoms of urinary tract infection, such as burning with urination, frequent or urgent need to urinate, bloody urine, fever, and nausea with or without vomiting.
Back Pain or Kidney Pain. Back pain in kidney area caused by some type of kidney disorder is typically harsh and pounding, contrasted with a boring pain which stems from a regular pain in the back. The pain caused by a kidney disease is coming in waves. The harsh pain appears, lasts for a certain period of time and then diminishes by itself.