The focus is growing on Geothermal power as one of the most promising forms of renewable energy. Often referred to as limitless, reservoirs are found on fault lines and near volcanic active areas. Replenishing is natural through rain water and snow melt, in addition to leftover fluids injected back into the well.
Geothermal Steam Turbine Governor Control Read More »
Geothermal energy has become a focal point in generation company portfolio’s with the demand for renewable energy continuing to expand. Geothermal energy production is known for it’s reduction in greenhouse gas emissions as it can be extracted without burning any fossil fuels. Currently, geo-fields are producing about one-sixth of the carbon dioxide of a clean natural gas fueled plant, and unlike solar and wind power, geothermal energy is always available.
Geothermal Wellhead Shutoff and Control Read More »
Heap leaching is an industrial mining process that extracts precious metals from ore through a series of acidic chemical reactions. During this process the non-valuable earth materials or gangue are put through a series of acidic chemical reactions that absorb specific minerals and re-separate them. Comparable to in situ mining, heap leach mining differs in that uses a heap pad to separate the ore.
Heap Leaching Acid Feed Control Read More »
Recovery of nickel has become increasingly challenging as yield per ton of ore has decreased dramatically. Existing mines grade decreases and new viable ore bodies are located in remote locations. Certain methods of recovery, such as traditional leaching, have been outmoded. In the last decade, high pressure acid leaching (HPAL) in autoclaves has become the technologically preferred method for processing gold present in sulfide minerals.
High Pressure Acid Leaching Read More »
Mining of copper typically encompasses separating of sulfide ore and recovery of the purer metal particles from gangue minerals using froth flotation. The process follows crushing, grinding, and milling of the ore into fine particles, which are mixed with water into a slurry that is then fed into a flotation cell.
Improve Copper Recovery Read More »
In transporting crude oil and pipeline petroleum products to refineries, storage tanks, and other delivery points, metering of the fluid is essential for determining flow rate, volume, and ultimately, cost. In situations where the flow in the input line may vary significantly, multiple meter runs are required in order to maintain flow rates within the optimum accuracy range of each flowmeter.
Meter Balance Valve and Meter Back Pressure Valve Read More »
Controlling the power needle is critical to any hydroelectric plant with an impulse turbine configuration. Operating head ranges are between 20-2000 meters where the water is converted to a high velocity jet stream when released from the nozzle’s orifice. As part of the nozzle for an impulse turbine, the power needle controls the water jet that impinges on a series of buckets rotating the runner.
A major midstream pipeline company is undertaking several projects to expand its capacity to meet the energy transportation needs of North America. One of the projects – a pipeline hundreds of miles long – will result in an increase in flow to more than 1,000,000 barrels of crude oil per day from the original design capacity of 400,000 barrels per day. The project will involve modification and upgrading of the existing pump stations, as well as the addition of a number of new pump stations.
Pump Station Pressure Control Read More »
Recovery of gold ore has become increasingly challenging as yield per ton of ore has decreased dramatically. Existing mines grades are decreasing, new viable ore bodies are being discovered in remote locations and certain methods of recovery, such as traditional leaching, have been outmoded. In the last decade, pressure oxidation (POX) in autoclaves has become the technologically preferred method for processing gold present in sulfide minerals.
Slurry Feed and Discharge Isolation Control Read More »
Steel making is an energy intensive process. At a tier one integrated steel mill in Jamshedpur, India, the mill energy consumption required for steel production is met with power generation produced at the power houses on site. The primary fuel sources used are by-product gases from the blast furnaces and coke ovens. Blast Furnace Gas (BFG) is the key fuel source used at the combustion boiler to generate steam.
Steel Mill Blast Furnace Gas Pressure Control Read More »