Keyword: Fans

Application Briefs: Aerospace
After rigorous ground testing, NASA’s Four Bed Carbon Dioxide Scrubber will be installed on the ISS.
Briefs: Materials

In the wake of recent developments that have reduced fan and jet noise contributions to overall jet-engine noise, aircraft designers are turning their attention toward reducing engine core...

Briefs: Aerospace

NASA Langley Research Center has developed a novel aircraft design that can carry 150+ passengers over a range of 3,500 nautical miles. Key features include a turboelectric propulsion system, twin...

Articles: Nanotechnology

As the need for nano precision has become increasingly important in many fields of research and manufacturing — such as microelectronics fabrication,...

Articles: Aerospace

This column presents technologies that have applications in commercial areas, possibly creating the products of tomorrow. To learn more about each technology, see the contact information provided for that...

Articles: Automotive
Heavy Duty Aftermarket Super Truck George Sturmon, Ed Murray, Josh Medling, Susan Schmidt, and Glen Harris
Enviro-Cool
Sullivan, MO

The Heavy Duty...

Briefs: Software
An Upwind Parabolized Navier-Stokes Solver (UPS) for Supersonic and Hypersonic Flow Simulation, Version 6.1

The simulation of high-speed flow involves unique challenges such as the treatment of strong flow gradients associated with shock waves and expansion fans, as well as the modeling, at hypersonic speeds, of air chemistry effects. However,...

Briefs: Aerospace

NASA Langley Research Center has developed two tools for turbofan engine acoustic liner design and analysis. The first is a statistical approach for broadband liner design and...

Briefs: Propulsion
High Speed Idle Engine Control Mode

Innovators at NASA's Glenn Research Center have developed an engine control mode that improves an engine's responsiveness to throttle commands during emergency landing conditions. The high speed idle (HSI) control mode increases the speed of the engine's fan and core shafts, allowing faster response and...

Briefs: Mechanical & Fluid Systems
Ultra-Compact Heat Rejection System

Radiator panels are the baseline heat rejection approach for most space systems. This approach is sound, but requires a large amount of surface area to radiate the anticipated heat load. The large panels require support structures to hold them in place and prevent damage. These structures impact mass and cost....

Briefs: Manufacturing & Prototyping
A Statistically Based Approach to Broadband Liner Design and Assessment

The broadband component of fan noise has grown in relevance with the utilization of increased bypass ratio and advanced fan designs. Thus, while the attenuation of fan tones remains paramount, the ability to simultaneously reduce broadband fan noise levels has become more...

Articles: Sensors/Data Acquisition

Testing in rugged applications often includes testing in extreme temperature ranges, which can add constraints to hardware. Cold-start engine testing, for example, uses a test...

Articles: Manufacturing & Prototyping

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft...

Articles: Motion Control

Energy savings are an extremely important topic in virtually every segment of industry today. In general, the largest consumer of power in a converting line or machine is the drive system. As...

Briefs: Manufacturing & Prototyping
Making Flexible Ablators that are Flexible Char Formers

An approach was developed for making low-density, flexible ablators for a thermal protection system (TPS) from a flexible fibrous carbon substrate and a polymer resin. The material is foldable and stowable, and can be deployed in space without compromising performance. In addition, the...

Briefs: Robotics, Automation & Control
Using Harmonics to Control Flutter in Wings with Electrical Motors

As aeronautics engineers develop innovative distributed electric propulsion systems, they face new challenges in ensuring that these innovative aircraft are safe as well as fuel efficient. In particular, these systems involve a large number of electrically driven fan motors...

Briefs: Propulsion
Experimental Testbed for 1-MW Turboelectric Distributed Propulsion Aircraft

Researchers at NASA’s Armstrong Flight Research Center are developing a concept aircraft for testing turbo-electric distributed propulsion (TeDP) experiments. TeDP generally involves providing thrust to an aircraft via wing-mounted ducted electric fans, which consist...

INSIDER Product: Electronics & Computers

TECA Corp. (Chicago, IL) has introduced a powerful new thermoelectric air conditioner for enclosure cooling. The AHP-690 Model features compact dimensions and 55% more cooling capacity than coolers of similar size. As a...

Briefs: Mechanical & Fluid Systems

Machine vibration often originates with rotating driveline components such as rotors, gears, bearings, and fans. Such vibration is the source of unwanted noise and can be destructive to the machine. The vibration ring is a...

Articles: Lighting

Best quality LED A-lamp light bulbs provide a superior, energy-efficient alternative to incandescent bulbs, which have essentially been banned as of January 1, 2014. LED bulbs offer the same amount of light...

Articles: Test & Measurement

Have you ever felt nauseous reading a book in the back seat of a car? Did you ever wake up from a deep sleep feeling disoriented? Momentary incidents like these happen when the sensory systems that...

Articles: Imaging

NASA’s twin Mars rovers, Spirit and Opportunity, remain one of the Agency’s greatest achievements in exploration. On Earth, these robots are best known for their stunning...

Products: Lighting

N2Power (Simi Valley, CA) a division of Qualstar Corporation, has announced constant current versions of its 375W AC-DC power supply dubbed XL375LED. The new units are designed to drive strings of LEDs in...

Products: Lighting

Axelsys LLC (Fremont, CA) has announced the latest addition to its line of Axelerator™ Products and IP — the AXPS3000, High- Lumens LED Lamp power supply unit (PSU). Developed as a complete system power...

Articles: Materials

The Partnership for Next Gen eration Vehicles (PNGV) is not a NASA initiative to develop powerful new rockets and spacecraft, even though it may sound like one. PNGV was a partnership...

Products: Lighting

Spectronics Corporation (Westbury, NY) has introduced the powerful Spectroline® TRITAN ™ 365, an ultra-high-intensity, multi-LED, broad-beam UV-A inspection lamp perfect for NDT applications. The TRITAN 365 features...

Briefs: Manufacturing & Prototyping

The NASA Human Space Flight program is interested in projects where humans, beyond low-Earth orbit (LEO), can make an important and unique contribution that cannot be reasonably...

Application Briefs: Lighting

Branded Cities Network (“BCN”), a division of Phoenix, AZbased EL Media Holdings USA, LLC, announced an exclusive representation agreement to sell digital advertising and integrated...

Articles: Electronics & Computers

AdvancedTCA (ATCA) continues to evolve to meet not just the market demands for the telecom central office, but networking, data center, medical, and military communications applications. The...