Controlling the head pressure helps maintain pressure drop across the metering device and prevents the evaporator from freezing, in the case of air conditioning, and excessive freezing in refrigeration systems.

The proper design, installation, and maintenance of these valves is vital for the safe operation of R-744 refrigeration systems, especially in industrial and commercial applications.

Parker Hannifin Corp. addressed two of today’s most pressing HVACR issues ― a labor shortage and pandemic-fueled concerns about indoor air quality (IAQ) ― during the recent AHR Expo.

New report finds that GHGs can be reduced significantly through the use of reclaimed refrigerant versus producing and using newly manufactured virgin refrigerant. 

Getting the right people on the team has always been essential for any company, in any industry, and HVAC is no exception.

HVAC contractors have to focus on recruiting and retaining technicians by focusing efforts on learning and then providing what the current workforce is looking for.

Let’s look at five hidden reasons HVAC systems might not keep up when the temperatures get hot, how to test for them, and potential repairs.

Once considered a temporary solution, portable heating and cooling units continue to evolve as consumer demand calls for new units and new uses.

When paired with heat pumps, air handlers are a great all-electric and sustainable option.

Can the type of ultraviolet light known as UV-C light kill the novel coronavirus? Manufacturers are not making that claim … yet.

The condenser is the most underrated component in an air conditioning or refrigeration system.

AI tools, such as Bluon’s MasterMechanic, could make a big dent in another aspect of the labor issue: the wisdom lost as older, highly skilled workers leave the industry.

Software company Bluon is betting that artificial intelligence, or AI, can help solve the labor shortage — and pass along decades of knowledge from retiring HVAC techs to the next generation.

As business owners start preparing their companies to withstand the increased volume of business, it’s imperative they do the same with their fleets.

Software can increase productivity, better manage labor, encourage retention, and keep things consistent and organized. But it’s up to HVACR contractors to choose the right software and take the proper stops to implement it.

This product combines field leak detection reliability with cloud hunting mode, which helps the operator to find the area highest in concentration and then switch to pinpoint mode to quickly find the leak.

Portable cooling products used to be considered “temporary” solutions, but consumers are now looking to portables to solve more of their residential and commercial needs.

Portable cooling systems work well as temporary solutions and can also serve as long-term options for unconditioned spaces like factories and warehouses.

Increased cooling capacities, remote monitoring technology, and the need for backup units are all part of the mix in the portable a/c market, experts say.

When choosing a vacuum pump, its pays to find a unit that makes oil changes convenient.

Since they don’t have to stay in one place, portable cooling units have been known to show up in some pretty unique places. Here’s a closer look at how portable units are serving in some outside-the-box applications.

The benefits of portables, including speedy implementation, reduced downtime, and cost-effectiveness, are continuing to gain recognition from end users. And, as end users experience these benefits and the resulting uptime, industry experts expect the portable market to continue to heat up.

HVAC contractors in different climates and regions all over the U.S. agree that irregular upkeep is the most problematic issue when it comes to rooftop unit failure.

The Pelican™ case housing provides a watertight, crushproof, dust-proof enclosure with heavy-duty deflector ribs for extra protection from shocks and impacts.

“It's simple. If you want to encourage women to prosper and develop, provide them with some prospering women to inspire them to develop.”

Here in the Santa Fe, New Mexico, area — and all across the nation, it seems — everyone wants to be “green.”

How many of standard HVAC sales include add-ons like a humidifier, air cleaner, HRV/ERV, UV lights, or zoning?

Ori Saporta, co-founder and Systems Architect at vFunction, joins host Jeff Doolittle for a conversation about the role of the software architect. The episode begins with Ori’s thoughts on what is typically missed or overlooked regarding this role. The conversation then explores aspects of both hard and soft skills required of software architects. Other topics include the relationship of the software architect to other roles, to design and process, and to quality. The show concludes by addressing the importance of dependency management by software architects. Brought to you by IEEE Software magazine and IEEE Computer Society.

Emily Bache, founder of the Samman Technical Coaching Society and author of several books about technical agile coaching, talks with SE Radio host Sam Taggart about katas and the importance of practice. They discuss how practicing in a safe environment helps developers to learn new skills and build new habits. They also talk about how Samman coaching combines this sort of deliberate practice with applying the lessons learned in practice to the production code base. They also touch briefly on the advantages of working in an ensemble fashion.

Brought to you by IEEE Computer Society and IEEE Software magazine.

Orico surprises with its GV100 1TB portable NVMe SSD. Join us as we take a look at this new drive and what it's all about."... [PCSTATS]

The ADATA SE800 is an NVMe based external SSD, which means it offers much better performance than earlier external storage. In our testing we saw speeds up to 1 GB/s, that, paired with 1 TB capacity on the SE800 make it an excellent choice if you want to move a lot of data around.... [PCSTATS]

External SSDs are the future when it comes to moving and storing large amounts of data. The Lexar SL100 Pro offers amazing speed and durability in sizes from 500GB up to 1TB.... [PCSTATS]

Are you in the market for a new gaming chair? Vertagear has only been in the world of chairs since 2015 but they have plenty of options available. The SL5000 features top of the line fabrics with intricate stitching, removable lumbar pillow and luxurious memory foam head pillow � but what else sets the SL5000 special edition apart from the competit... [PCSTATS]

Want to know how sleep "resets" your brain? How memories are formed and retained?  Then watch The Benefits of a Good Night's Sleep, embedded below, and learn how sleep balances and regulates the body's vital systems which, in turn, affects declarative and procedural memory.

This short TED-Ed lesson by Shai Marcu is an important topic as school starts and students will soon be staying up late or all night in order to cram for tests and other educational requirements. Marcu goes into detail describing the neurological importance of 8 hours of sleep, but the application is interesting as going to sleep three hours after memorizing math formulas (declarative memory) and one hour after practicing music scales (procedural memory) is the most ideal.

I'm left wondering what I might have accomplished if my sleep and learning patterns were consistent during my formative years...
    

This technical article we will go through a number of existing applications for conducting a wide range of electrical studies. However, the practice says that studies involving load flow and fault analyses are the most commonly utilized programs in power transmission... Read more

The post Eleven most important calculations you can perform with power system analysis software appeared first on EEP - Electrical Engineering Portal.

When reactive power devices, whether capacitive or inductive, are purposefully added to a power network in order to produce a specific outcome, this is referred to as compensation. It’s as simple as that. This could involve greater transmission capacity, enhanced... Read more

The post Do you know what reactive power compensation is? If not, keep reading, it’s important. appeared first on EEP - Electrical Engineering Portal.

Utilities are under intense pressure to maximize the use of their current transformer asset base in order to keep rates down while yet providing excellent reliability. In order to achieve higher loading during both regular and emergency operations, long-standing loading... Read more

The post Managing power transformers in service: The most important economic aspects appeared first on EEP - Electrical Engineering Portal.

This technical article explains various aspects of the application of medium voltage switchgear and highlights the considerations for the selection of suitable circuit breakers for different applications. Medium voltage switchgear, commonly known as MV switchgear, play a significant role in... Read more

The post Medium voltage switchgear: Important design considerations and applications appeared first on EEP - Electrical Engineering Portal.

Listening carefully and communicating with clarity create a better process for all parties and help avoid issues.

Over the past decade, the restoration industry has witnessed a significant shift from large franchises to a more diverse mix of independent companies. 

Epson has upgraded its EqiqVision Mini portable lifestyle projector series with the EF22 and EF21, two new laser models featuring advanced setup features and the Google TV streaming platform.

10 Most Popular Portable Projectors

Rapid urbanisation, coupled with the lack of coordination in the use of resources, such as taxis and security personnel, has negatively affected a wide array of quality-of-life metrics. These include waiting time in queues, response time for emergencies, and the number of traffic violations in cities. Using AI and Machine Learning methods, aggregation systems have been developed and adopted to improve the matching of resources and demand, thereby enhancing the efficiency of real-world transportation, emergency response and security systems. In this podcast, Associate Professor Pradeep Varakantham from the SMU School of Information Systems shares how AI can be used to improve transportation and security.

Lightweight, compact, and heat-resistant retort pouches are ideal for preserving food products like baby food, ready-to-eat meals, and pet food through retort sterilization, ensuring longer shelf lives. However, there are limited recyclable options for retort pouches in the market.

Dicen que sólo hay una oportunidad para dar la primera impresión y que ésta es la más importante y difícil de cambiar.

As the saying goes, you only get one chance to make a first impression. In the packaging world, flexible packaging is considered by many to be the optimal way for a company to put its best foot forward.

The global track and trace solutions market is expected to reach $28.9 billion by 2032, with companies in various industries utilizing these solutions for production and sales tracing and compliance. Notable firms such as MM Packaging, Antares Vision Group, and Deitz Co. have developed innovative solutions for these needs.

The heavy-duty packaging tape is designed for sealing high-value packages, 100% recycled corrugated cardboard.

Changing consumer expectations are altering packaging and processing industry priorities. 

Made with 90% post-consumer recycled PET film, the new tapes offer a way to dramatically reduce the use of virgin plastics in case sealing operations.