In This Issue
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WaterStrategies to Reduce Sulfuric Acid Usage in Evaporative Cooling Water Systems
Concentrated sulfuric acid is often used to prevent calcium-based scale formation on condenser and heat exchanger tube surfaces in power plant evaporative cooling water systems. Unfortunately, the chemical’s price has jumped more than 300% over the past three years. If the rising cost of water treatment has you under the budget gun, here are some alternative strategies that can reduce or even eliminate your sulfuric acid usage.
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O&MRestraining Torsional Vibration
All rotating equipment power trains found in a power plant have some amount of vibration, usually caused by mechanical unbalance of the rotating system, shaft misalignment, or weakness in the bearing support.
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CoalDetermining Carbon Capture and Sequestration’s Water Demands
The U.S. Department of Energy’s National Energy Technology Laboratory is pursuing a new integrated energy-water R&D program that addresses water management issues relative to coal-fired power generation that takes into account the major impacts of CCS on water use. The goal of this research is to promote more efficient use of water in power plant operations and increase the availability of heretofore unusable waters for power plant use. Those practices can mitigate the impacts of CCS on power plant water use and allow for continued development of energy resources.
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WaterHarnessing Energy from Upward Heat Convection
The atmospheric vortex engine exploits the natural energy content of the vortex produced during upward heat convection in the atmosphere. The heat source can be solar energy, warm sea water, warm humid air, or even waste heat rejected in a cooling tower. When mature, the technology — currently in the small-scale testing phase — promises to be an efficiency game-changer for fossil-fired power plants.
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NewsUniversal Beam Clamps
Harrington Hoists launched its new Universal Beam Clamps, a product line that complements its core product offering of hoists, cranes, and material-handling equipment. The beam clamps are available in metric tons rated 1 through 10; they meet ASME BTH-1 and ASME B30.20, and comply with portions of ASME B30.16; and they have a design factor […]
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Commentary
Going Coastal: The Case for Offshore Wind
Offshore wind projects involve regulatory, technological, and economic challenges that are greater than those confronted by onshore wind projects. Overcoming these challenges will be necessary to permit offshore wind to achieve its full potential.
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NewsMass Flow Meters Conform to EPA Reporting Rule
Sierra Instruments introduced a line of mass flow meters that conform to the new emissions reporting rule from the Environmental Protection Agency. That rule, 40 CFR Part 98, mandates that as of Jan. 2, 2010, U.S. companies that emit more than 25,000 tons a year of carbon dioxide equivalent must report their greenhouse gas (GHG) […]
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NewsIncreased Pressure Convertible Water Jet Pump
NLB Corp. has extended the operating pressure range of its convertible NLB 325 Series water jet pump units to 40,000 psi — providing what the company calls the “industry’s widest operating pressure range available with up to 400 hp.” These units can be converted in just 30 minutes to operate at 8,000 psi, 10,000 psi, […]
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NewsLaser Welding System with Enclosed Chamber
Huffman Corp. introduced model HP-245ACC, a laser welding system with a fully enclosed atmospheric welding chamber for welding in an inert gas environment. The system is designed for welding oxygen-sensitive or -reactive materials like titanium. The system can be configured with a variety of features like antechambers, inert gas handling and purification systems, oxygen and […]
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News
Double-Edged Sword
A loosely knit coalition of state leaders and environmental activists petitioned the Securities and Exchange Commission (SEC) in late 2007 for interpretive guidance on the corporate obligation to disclose material information about all aspects of climate change. The petitioners received what they asked for and a little bit more.