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 from a kidney infection is usually a bit different from back pain caused by other injuries such as a muscle strain or a back sprain. For starters, kidney infections usually start with a urinary tract infection. The only exception to this is kidney infections that start with a kidney stone. This possibility should be considered in anyone that has low back pain such as yourself. Urinary tract infections often cause burning with urination, pain in the pelvic region, urinary urgency, and sometimes fever.