Solving infrared radiation thermal control problems & more…

Eppner Laser Gold: The Preferred Finish for the Oscars and NASA Spacecraft

Laser_Gold_Thermal_Housing

Stainless steel thermal housing. Laser Gold for the VIRRS Weather Satellite.

NEW YORK, — /PRNewswire/ — When top organizations are thinking about how gold can help enhance a project, they are turning to Laser Gold© to solve thermal control problems and enhance performance.

Whether it be NASA’s desire for 99% infrared reflectivity or the Oscars® need to make the finish on these historic statuettes more rugged, they are all turning to Epner Technology’s Laser Gold electro-plating process.

NASA was the first to appreciate the innovation Epner Technology brought to gold plating.

The space agency required and ultra-pure 24 karat gold to achieve the highest infrared reflectivity. At the same time the coating had to be rugged enough to permit physical cleaning.

The scientists at Epner Technology modified an electrochemical process in such a way that the gold atoms in the deposit were packed more tightly than ordinary plating.

And thus Laser Gold was born; the reflectivity of a pure gold combined with the durability of a coating three times harder than any other 24 karat gold. Continue reading

Infrared Thermography Apps at InfraMation 2016

A Sneak Peek at the InfraMation 2016 HVAC Clinic

Link to Last Year's HVAC Inframation Video online

Linked to Last Year’s HVAC Inframation Video online

Online — Brian Coldwell will be back at InfraMation 2016, but this time presenting a 1.5 hr clinic on HVAC equipment that plays a critical role in maintaining proper indoor air quality in most commercial buildings.

The installation and condition of this equipment directly affects operating costs, equipment life expectancy, occupant comfort and building tenability.

As such, optimizing equipment performance is a high priority for all building stakeholders.

This paper discusses the use and benefits of infrared (IR) thermography to assess HVAC system functional performance.

Practical examples will identify acceptable shortcuts versus unacceptable practices when using thermal imaging, and highlight best practices to reduce chances of missing a real issue or finding a fake issue. Continue reading

Cryogenically Cooled Heat Pipes Used for Refrigeration

By CSA Editor

Dr. Hussam Jouhara. Image: Brunel University

Dr. Hussam Jouhara. Image: Brunel University

Online — Scientists at Brunel University London, in collaboration with Air Products PLC, have engineered a new method to build freezers using advanced cryogenically cooled heat pipe technology.

The units are capable of reaching temperatures as low as -180 °C are likely to be used for medical storage, cooling and storing samples ranging from blood plasma to eggs, sperm and other biological materials.

“At the heart of the new system is the concept that what we needed was to be able to efficiently transfer cold,” says Dr. Hussam Jouhara, of Brunel’s Institute of Energy Futures.

Continue reading

Lascar Introduces Vaccine Temp Monitoring Dataloggers

Vaccine Temp Recorders Exceed CDC Guidelines

wireless_dataloggersCHESTERLAND OH, USA — The Lascar EasyLog family of wireless data loggers is a low-cost series of standalone USB and WiFi-enabled sensors allowing accurate and continuous vaccine temperature monitoring.

Exceeding CDC guidelines on temperature data loggers used for vaccination storage, these sensors are supplied with glycol bottles, calibration certificates and magnetic clips for mounting to a refrigerator. Continue reading

Scientists are first to discover sensory system that detects air humidity

Understanding the molecular mechanisms could lead to tools for better mosquito control (Northwestern University)

Drosophila species

RH and temperature are processed by different cells in the Drosophila antenna (Image Courtesy Current Biology)

Online — Most insects have dedicated sensory systems to detect water vapor in the air, but little has been known about how they work. Now, a research team from Northwestern University and Lund University in Sweden is the first to discover a sensory system that directly detects air humidity.

The scientists have identified key genes involved in the fruit fly’s ability to detect changes in external humidity, and they also discovered the sensory neurons — the fly’s humidity receptors — in a strange, small sac in the insect’s antennae.

“That insects are able to detect humidity levels has been known since the beginning of the 20th century, but how they do it has remained enigmatic,” said Marcus C. Stensmyr, associate professor at Lund University and co-corresponding author.

“Our study reveals for the first time the genes and neurons that underlie this ability, which is very exciting.”

What the researchers have learned about Drosophila melanogaster — a major model system for the genetics of behavior — could help scientists better understand the mosquito and improve mosquito population control by preventing the insects from finding suitable bodies of water in which to lay their eggs. Continue reading

A Global Tour of Precipitation from NASA

“Science On a Sphere” | May 16, 2016

Screen Shot NASA_Precip video

This is a screen shot from an abridged 2-D version of A Global Tour of Precipitation video in 4K that is designed for flat screens. Complete transcript available from NASA . Click on the image to view the NASA source.

Online — Precipitation (falling rain and snow) is our fresh water reservoir in the sky and is essential for life.

A Global Tour of Precipitation from NASA shows how rain and snowfall moves around the world from the vantage of space using measurements from the Global Precipitation Measurement Core Observatory, or GPM. Continue reading

Energy-Efficient Heat Pump for Colder Regions with Lower Utility Bills

An EERE Success Story Keeps Residents Cozy

National Lab-Industry Partnership Develops New Technology, Surpasses DOE Efficiency and Cost Goals

ORNL_Heat_Pump

Photo of the prototype cold climate heat pump outdoor unit, installed at the Ohio field test site in January 2015.
Credit: Oak Ridge National Laboratory

Online  —  Home heating is the largest energy expense for most U.S. homeowners and accounts for nearly 30% of energy used in the nation’s residential buildings.

Millions of homeowners in colder regions of the country do not have natural gas available, leaving furnaces to be fueled with heating oil, propane, or electricity.

This can often result in higher heating bills for homeowners.

The technology also enhances air-source heat pump efficiency and comfort in milder climates where heat pumps are already common, which means significant national primary energy savings (about .04 quads annually) and greenhouse gas reductions (2.4 million metric tons annually) are possible.

However, soon, these 2.6 million homeowners living in cold climates will have another, efficient home heating option.

Continue reading

Lufft snow height sensor SHM30 reveals secrets about Antarctica

By Guest Author

Labor im Reinluftgebiet, Polarstation Neumayer III // Clean Air Lab at Neumayer III Polar Station, (C): AWI Bremerhaven

Since 2009 the Lufft SHM 30 snow height sensor braves the rough climate of the Antarctica at the most important research station of the Alfred Wegener Institute.

What exciting information the station has revealed and how it looks like, you can find out in the following…

Neumayer III polar research station equipped with Lufft snow height sensor SHM30, photo: AWI Bremerhaven

Neumayer Station III, short Neumayer III of the German Alfred Wegener Institute (AWI) is the biggest as well as most important research station of the central Antarctica. Continue reading

Sensing flame structure by process tomography

 

PHILT.Super-Sensing

June 2016
Volume: 374 Issue: 2070- Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences: 374 (2070)
Theme issue ‘Super-sensing through industrial process tomography’ compiled and edited by Manuchehr Soleimani

Paper in the Themed issue ‘Super-sensing through industrial process tomography’ compiled and edited by Manuchehr Soleimani, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences:  Volume: 374 Issue: 2070, (June 2016 )

by Jing Liu1, Shi Liu2, Wanting Zhou2, Xin Qi1, Jing Lei11 and Huaiping Mu1

ABSTRACT (Format slightly modified for easier online reading):

Non-intrusive visualization of the structure of flames can offer us many advantages in studying the reaction mechanisms of combustion and observing special distributions of the parameters required for the development of equipment such as jet engines and gas turbines.

Process tomography is a relatively new technique for such a task, but is useful owing to its fast speed and capability of detecting signals related to ionizations caused by chemical reactions and thermal effects.

Electric capacitance tomography (ECT) is one of the process tomographic techniques. ECT usually comprises a sensor array of electrodes that detect permittivity variations in the measuring zone, a data-logging device and a computer that controls data acquisition and carries out image reconstruction.

There have been studies on ECT imaging of flames; however, ECT has not been exploited sufficiently to reveal the inner structure of the flames. In this study, a sensor with planar electrodes is created, and the associated three-dimensional sensitivity map is generated by the finite-element method to detect flame structure.

A series of experiments are carried out covering a range of feed rates of fuel and air. Data are collected by the ECT sensor and hardware. The results of the ECT reconstruction show good agreement with actual features, and the structure of the flame is found.

This opens up a new route for the study of flames. Continue reading