Hot hydraulics, controls drive new solar energy field

Powerful hydraulic actuators rotate and tilt solar collector assemblies as they track the sun’s motion in the desert sky over the new Nevada Solar One power plant (link to photos, videos). The actuators and attached controls make minor adjustments to...

05/15/2008


Wadsworth, OH – Powerful hydraulic actuators rotate and tilt solar collector assemblies as they track the sun’s motion each day through the desert sky from the new

Nevada Solar One power plant

(video,

Parker Hannifin Corp

.


Trouble-free positioning systems are needed for solar thermal plants to ensure maximum heat. Parker Hannifin helped out with this Nevada Solar One plant.

Located in Boulder City, NV, about 25 miles south of Las Vegas, the plant, a 64-MW solar thermal plant, is the world’s third largest solar energy field. Spanning more than 300 acres, Solar One will generate approximately 129 million kW hours of solar electricity annually– enough to provide power to 15,000 homes. At the facility’s energy field, 760 solar collector assemblies, holding about 182,000 curved mirrors, are aligned in parallel rows on a north-to-south axis, enabling single-axis troughs to track the sun from east to west during the day to ensure concentrated sunlight.
The Parker system on each of the 760 solar collectors includes one customized

Parker HTR300 Series rack-and-pinion hydraulic actuator

, control valves, solenoid valves, pumps, cylinders, seals and wear bands, and pre-bent tubing/fitting assemblies. Each actuator drives 12 panels that weigh more than 2,000 lb; each panel has 20 curved mirrors. Parker provided all components in the self-contained hydraulic system, which uses the same fluid to power and to lubricate the system. The design is predicted to deliver nearly maintenance-free operation for more than 20 years.
Actuators are the primary structural element between solar panels and support pylons. The actuators provide lockdown capabilities with wind load control up to 84 mph– hurricane-force – to protect the solar arrays while in stow.

Acciona Solar Power (ASP)

, a unit of Spain’s Acciona Group, chose Parker to develop the motion control system for the solar panels. Gilbert Cohen, senior vice president of developer ASP said the plant is creating interest in the energy industry because it provides a renewable energy alternative to plants powered by fossil fuels, with no emissions except excess steam/vapor.

Control Engineering News Desk
Register here and scroll down to select your choice of eNewsletters free .





No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2015 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
World-class maintenance: The three keys to success - Deploy people, process and technology; 2016 Lubrication Guide; Why hydraulic systems get hot
Your leaks start here: Take a disciplined approach with your hydraulic system; U.S. presence at Hannover Messe a rousing success
Hannover Messe 2016: Taking hold of the future - Partner Country status spotlights U.S. manufacturing; Honoring manufacturing excellence: The 2015 Product of the Year Winners
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Improving flowmeter calibration; Selecting flowmeters for natural gas; Case study: Streamlining assembly systems using PC-based control; CLPM: Improving process efficiency, throughput
Putting COPS into context; Designing medium-voltage electrical systems; Planning and designing resilient, efficient data centers; The nine steps of designing generator fuel systems
Warehouse winter comfort: The HTHV solution; Cooling with natural gas; Plastics industry booming

Annual Salary Survey

Before the calendar turned, 2016 already had the makings of a pivotal year for manufacturing, and for the world.

There were the big events for the year, including the United States as Partner Country at Hannover Messe in April and the 2016 International Manufacturing Technology Show in Chicago in September. There's also the matter of the U.S. presidential elections in November, which promise to shape policy in manufacturing for years to come.

But the year started with global economic turmoil, as a slowdown in Chinese manufacturing triggered a worldwide stock hiccup that sent values plummeting. The continued plunge in world oil prices has resulted in a slowdown in exploration and, by extension, the manufacture of exploration equipment.

Read more: 2015 Salary Survey

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.
This article collection contains several articles on the vital role that compressed air plays in manufacturing plants.
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
This article collection contains several articles on strategic maintenance and understanding all the parts of your plant.
click me