... of pipe. The AC voltages measured did not readily tie to an HVAC or an MVAC source. We studied nearby pipelines, to look for any interference patterns, pipe to pipe. A much older steel pipeline, running north to south only 20 feet to east of target pipeline at road intersection, had up to 2.8 VAC; three...

... measurements with a risk model to rank the tower footings severity of degradation. This risk analysis tool can be utilized to prioritize the examination and/or repair of individual towers or circuits. High Voltage Alternating Current HVAC Electrical Towers Corrosion Direct Examination Risk Assessment S e...

... for mitigating AC induction on pipelines. Developments in AC mitigation and grounding techniques will also be examined to illustrate the future trends in AC mitigation practice and technology. AC Interference Mitigation Pipeline Induced AC HVAC Transmission line Soil Resistivity Grounding Grounding...

... induced steady state voltages on a gathering piping system located in several powerline corridors. HVAC simulation software pipeline power transmission line resistive interference conductive interference design validation mitigation INTRODUCTION Increased difficulty in obtaining utility right...

...grounding grid HVAC induced AC induced AC mitigation point ground transferred potential Computer modeling various mitigation schemes clearly showed that installation of a single zinc ribbon mitigation wire would have provided effective grounding of the pipeline in the very low electrical...

... and current are in perfect agreement with these theoretical test cases. In addition, it will be proven that commonly used formula's for the induced EMF need to be handled with care, especially when the distance between the transmission line and the pipeline becomes bigger. simulation software HVAC induced...

... inhibitor HVAC maintenance INTRODUCTION Closed circulating water systems in buildings are primarily the systems responsible for the transference of heating and cooling from boilers, heal exchangers, and chillers to the areas which require heating and cooling. These are commonly referred to as heating...

... to enumeration. Microbial Monitoring at the Indianapolis HVAC System Microbiological counts were measured with SaniCheck B^® dip slides (Biosan; Ferndale, MI). A comparator chart was used to determine the number of organisms per milliliter to the nearest order-of-magnitude. Standard microbiological...

...Scales and deposits, in heating, ventilating, and air conditioning (HVAC) systems, become operating concerns as corrosion rates may accelerate and heat transfer abilities decrease. Large and complicated HVAC systems, often costly and cumbersome to clean, are frequently neglected. Advanced...

... and firewater piping. The paper reviews the causes of corrosion in building water piping and various measures used to control the corrosion. Building HVAC Heating water Chilled water Cooling water Potable water Firewater Bimetallic Erosion INTRODUCTION Corrosion in building water piping can...