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可再生能源

项目概述

Today’s consumer is more environmentally conscious than ever before.  F有远见的公司,比如 海洋可再生能源公司 (ORPC) and US Synthetic, are teaming up to develop new ways to capture and convert hydrokinetic energy from ocean waves and river currents into 可再生、无排放的电力.

ORPC的RivGen® Power System was built in 2014 and deployed in the Kvichak River near the remote Alaskan village of Igiugig in 2015. Using the latest technology advancements, like diamond bearings from US Synthetic, the RivGen Power System is now supplying one-third of the village’s electrical needs, significantly offsetting diesel fuel use.

To meet the challenges of operating in a wet and dirty environment, renewable energy companies are relying on seal-less, corrosion-resistant diamond bearings to deliver on the promise of local, sustainable, clean continuous power.

项目: RivGen®电源系统

类别: 发电、水处理

应用程序: 海洋 & 河流能源-淹没

位置: 阿拉斯加的lgiugig村

年建成: 2015

“Engineers [in the renewable energy space] have to design systems that can survive the corrosive effects of seawater and withstand the intensity of waves….” Fast 公司 Magazine: Could Wave Power Be the Next Boom in 可再生能源?2019年4月
水下含金刚石.

问题

The dirty water passing through a hydrokinetic system poses significant challenges to rotating equipment.  海洋 waves and river currents generally carry significant amounts of damaging sediment (like sand, 砾石, 等.), 腐蚀性矿物(包括盐), high amounts of fluid pressure caused by violent waves or powerful river currents, and even barnacles and mud that can compromise component life in any system.  在大多数情况下, 频繁的机械故障是常见的, due to eroded and contaminated rotating equipment–especially bearing seals.  Traditional ball bearings running in these harsh environments must be replaced or repaired often, significantly increasing critical power outages and costly downtime. 

Engineers have tried to overcome these challenges in the past, by adding redundant ball bearing stacks and/or encasing the bearings in large sealed sleeves for protection. These conventional methods work to a degree, but the power of ocean waves and river currents, combined with the eroding sediments within the water, still manage to break down these common counter measures. These methods of protecting traditional bearings also introduce complexity into the system and typically increase the overall size of the tool–increasing the cost, 限制使用寿命, and significantly reducing the efficiency of this critical system.

澳门在线威尼斯官方登录

ORPC and US Synthetic teamed up to develop a diamond-based bearing solution that completely overcomes the challenges of rotating equipment running in corrosive, 磨蚀的海洋和河流环境. By utilizing US Synthetic’s proprietary diamond technology, the ORPC RivGen Power System leverages:

  • 一个seal-less, fluid-cooled diamond bearing that eliminates excess component weight and the need for contaminating lubricants and maintenance;
  • A polycrystalline diamond material that can easily resist corrosive and damaging material flowing in the water;
  • A sliding-element bearing that delivers a low coefficient of friction (0.01).  使用约200小时后, diamond “wears in” and the coefficient of friction will perform similar to a polymer. 在这些低摩擦水平, diamond provides improved operating efficiency and eliminates excessive drag on the system’s rotating elements.
“We’re designing for a 20-year service life.” ——ORPC工程副总裁ian Marnagh

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