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Aerospace

Thermal Management Techniques in Avionics Cooling

Innovation is carrying airborne technologies farther and higher than ever before, and avionic cooling practices have had to evolve to keep up.

News
Power

Mahle Advances 3D Printing Capabilities

Slashing the time to produce prototypes for complex components, from several months to a few days, explains in part why Mahle’s technology group decided to build a new facility for additive...

News
Power

German OEMs Flex 3D Manufacturing Muscle

A chief impediment for wider adoption of additive manufacturing long has been its potential for application in high-volume and high-throughput production. But continuing process and technique...

Articles
Mechanical & Fluid Systems

Why Heat Exchanger Manufacturers Need to Rethink Design and Fabrication

Brazing isn't efficient, says an industry expert, and it's time for a change.

Briefs
Automotive

High-Performance, Lightweight, Easy-to-Fabricate Heat Exchanger

This can be used in energy-recovery systems in industrial, space, automotive, and military applications.

Articles
AR/AI

Getting to the ‘Core’ of AV Thermal Management

The universal understanding of autonomous vehicle (AV) safety is one of the most critical keys to broad adoption of self-driving technology. For AVs, what is “safe enough?” This...

News
Mechanical & Fluid Systems

New Ampere EV Motor Aims for Power, Torque Benchmarks

Consider an EV traction motor rated at 220 kW and weighing 10 kg (22 lb). Is it too good to be true? “We’ll find out within nine months when we build it,” said Ian Foley,...

Articles
Aerospace

Bringing Turbine Power to Small Aircraft

A regenerative, high-temperature heat exchanger doubles the efficiency of low-power turbines.

Briefs
Electronics & Computers

Transport Method Boosts Capacity of Heat Exchangers

A simple modification can improve the capability of turbulent heat exchangers by 500%.

Technical Innovation
Electronics & Computers

Leak Testing of Commercial-Vehicle AC Systems Critical as Move to HFO Refrigerants Looms

Passenger car and light-truck makers in the U.S. already have switched to more environmentally friendly hydrofluoroolefin (HFO) refrigerants from...

Articles
Manned Systems

Air Exchange System Shows Potential to Reduce Winter BEV Range Loss

Battery-electric vehicle (BEV) range loss from winter use of PTC (positive temperature coefficient) heating has become a source of major concern as the industry works...

Briefs
Electronics & Computers

Combustion Gas Heat Exchanger

Two very challenging problems facing the U.S. and the world are energy security and global climate change, largely due to dependence on fossil fuels. Cost-effective technologies have been developed that are...

News
Test & Measurement

Updating an SAE Standard—one Committee’s Contribution to the Clean Air Act

SAE standards automatically come up for review every five years, which forces the sponsors to review the documents to see if they require updating. In the...

Application Briefs
Mechanical & Fluid Systems

Metal 3D Printing for Complex Heat Exchangers

Renishaw
West Dundee, IL
www.renishaw.com

HiETA develops metal additive manufacturing (AM) methods for the production of complex, lightweight structures for heat management...

Briefs
Propulsion

Fuel Cell/Fuel Cell Hybrid System

Fuel cells can deliver clean, reliable, and uninterrupted power nearly 100 percent of the time. Fuel cells offer the advantage of efficiency by converting chemical energy directly to electricity. They have no moving parts, thereby eliminating failures associated with pumps, blowers, heat exchangers, and other...

Road Ready
Electronics & Computers

2018 Los Angeles Auto Show: Hyundai Unveils the 2020 Palisade Midsize SUV as Its Flagship

The three-row 2020 Hyundai Palisade is the brand’s biggest SUV yet, providing more passenger room and more thermal-management performance to...

Briefs
Energy

Double-acting Extremely Light Thermo-Acoustic (DELTA) Converter

NASA's Glenn Research Center has developed a novel Double-acting Extremely Light Thermo-Acoustic (DELTA) converter that operates at high frequencies (>400 Hz) with greatly...

Briefs
Electronics & Computers

Cryo-Fluid Capacitor (CFC)

NASA’s Kennedy Space Center (KSC) has created the Cryo-Fluid Capacitor (CFC) that capitalizes on the energy storage capacity of liquefied gases, and the relative simplicity of high-pressure gas bottles while...

Briefs
Manufacturing & Prototyping

Magnetic Induction Heating of Space Foods During Dispensing Under Weightless Conditions

Hot foods are psychologically pleasing. Food heating systems are currently part of the astronaut feeding program. An electrical method of heating foods during dispensing in space uses magnetic induction heating. The process is up to 95% efficient in...

Briefs
Photonics/Optics

Freeform Channel Close-Out for High-Performance Heat Exchangers

Large-scale liquid rocket engines with regeneratively cooled nozzles will enable reliable and reduced-cost access to space. The coolant that circulates through the internal...

Briefs
Electronics & Computers

Simplified Method for Uniformly Distributing Flow Within a Fluid Layer of a Multi-Layer Heat Exchanger

In multi-layer and multi-fluid plate and fin heat exchangers, fluid ports are required to be located on the side of the heat exchanger....

Articles
Electronics & Computers

Loop Thermosyphons

Two-phase cooling has been utilized in the electronics cooling industry for many decades, with possibly the most well-known adaptation being the heat pipe. Heat pipes are capillary-driven, two-phase devices that...

Briefs
Materials

Cryo-Fluid Capacitor (CFC) for Solid-State Storage and Supply-on-Demand of Cryogenic Fluids

Storage and transfer of fluid commodities such as oxygen, hydrogen, natural gas, nitrogen, argon, etc. are absolute necessities in virtually every industry. These fluids are typically contained in one of two ways: as low-pressure cryogenic liquids, or as...

Articles
Materials

Design for Metal Additive Delivers New Standards for Metal Parts

Metal additive manufacturing is being embraced as a choice for parts production across many fields — including aerospace, automotive, healthcare, and other industries —...

Briefs
Electronics & Computers

Integrated Three-Dimensional Module Heat Exchanger for Power Electronics Cooling

Critical elements in the operation of electric drive systems are power electronics and power semiconductor packages. Improving thermal management of power electronics can help reduce the cost, weight, and volume of electric drive systems, and thus increase market...

Features
Medical

Quartet H2O LDD Actively Cooled Lateral Surgical Fiber Optic

Infrared surgical lasers, e.g., CTH:YAG @ 2100 nm and TM:YAG @ 2000 nm, are wonderful tools for minimally invasive surgery such as laser vaporization of hyperplastic prostate...

Articles
Motion Control

Selecting the Correct Actuator

The need for actuators has grown exponentially. Nearly everywhere you look you can see pneumatic, hydraulic, or electric actuator systems at work in an endless variety of applications. There are many...

Briefs
Mechanical & Fluid Systems

Self-Regulating, Freezable Heat Exchanger for Spacecraft

Aspacecraft thermal control system must keep the vehicle, avionics, and atmosphere (if crewed) within a defined temperature range. Water coolant loops are typically used to transport...

Articles
Aerospace

Using System Simulation to Manage Increasing Thermal Loads on Aircraft Fuel Systems

Today’s modern military fighter jets are like “a flying thermos bottle” according to Steve Iden, AFRL Invent Program Manager [1]. Many...