Grow rooms are a prominent example of the potential and the challenges of indoor agriculture.

The Cooling System Optimizer is an intelligent controls layer that sits between product controls in chillers and CRAHs and below the site building management system (BMS). 

ECM Technologies' ThermaClear conquers oil fouling by clearing the coil system from the inside, removing the oil barrier and super-lubricating the compressor.

How to safely wire the motors, what to know about the wire colors, and more.

The Occupational Safety and Health Administration’s (OSHA’s) Confined Spaces in Construction final rule, issued May 4, 2015, created confusion in the HVAC industry. ACCA announced that, after months of negotiations with OSHA, an agreement clarifies that the rule has very limited application in the residential HVAC industry.

The global data center precision air conditioning market is expected to record a compound annual growth rate (CAGR) of more than 10 percent to 2020, according to the latest market research report by Technavio.

The York^® Mission Critical Direct Evaporative Cooling (DEC) Air Handling Units (AHUs) from Johnson Controls Inc. are designed to meet data centers’ specific needs.

Ongoing and evolving U.S. Environmental Protection Agency (EPA) and Department of Energy (DOE) regulations have created a complex landscape for supermarket owners.

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

EPA is revisiting a rule that would allow R-410A condensing units to be manufactured indefinitely to service existing equipment.

The ductless market has grown significantly in the U.S. in the last 20 years. What was once a fringe product has become a prominent subset of the HVAC world.

The National Air Duct Cleaners Association (NADCA) offers two certifications; the Air Systems Cleaning Specialist (ASCS) certification and the Certified Ventilation Inspector (CVI) certification — credentials that are internationally recognized and known for showcasing an individual's enhanced knowledge and skills related to HVAC system hygiene.

Make sure you have some thick skin and don’t take offense to social biases that you’ll eventually run in to. Women can do anything they set their minds to — just set your mind to it and do it.

Not only are the right data-driven leaders required, HVAC contractors also need to go through the necessary process to build a data culture within their company.

Under these orders, AAON will provide a custom-designed thermal management system supporting a liquid cooling deployment for the customer's data centers.

The rapid expansion of data centers has raised concerns about their massive energy use and carbon footprint. However, adopting sustainable HVAC solutions can reduce a data center’s environmental impact and energy consumption.

“While the recent news is a formality, it makes the victory over these burdensome regulations official."

Our Lady of Guadalupe Catholic Church’s community center in the Tempe, Arizona suburb of Guadalupe now has state-of-the-art HVAC thanks to variable refrigerant flow equipment, accessories, and installation labor donations from RectorSeal, Panasonic Air Conditioning Group (a division of Panasonic Corp. of North America), and Woody’s Heating and Air Conditioning.

The equipment in this month’s troubleshooting situation is a split system that has only been in service for two years, but there is a lot of history — several service calls since the equipment was installed, and an on-going complaint that the system just doesn’t keep the ranch-style home comfortable.

The proposed new approach to chilled water HVAC systems promises to provide significant capital cost savings, energy cost savings, and a path to eliminate CO₂ emissions.

Geothermal energy can be used to heat and cool commercial buildings. The highly efficient systems that make this possible are geothermal heat pumps.

HACCP Manager Enterprise is a portable data-collecting hand-held device paired with Web-based software that allows the sharing of temperature records, checklists, and custom reports across an unlimited number of locations via a single hosted platform. 

AI technology can help HVAC contractors monitor each sales and repair call.

Is reducing a facility's energy consumption by over 130,000 kWh annually through HVAC optimization possible?

Throughout March, voters will help the staff at Peterman Brothers select four charity partner organizations for 2023.

Taking a look at the major concerns around replacing an 80% furnace with a high-efficiency one such as venting requirements, drilling extra holes, and financial costs.

This episode covers the topic of agile testing. Michael interviews Lisa Crispin as an practionier and book author on agile testing. We cover several topics ranging from the role of the tester in agile teams, over test automation strategy and regression testing, to continuous integration.

This episode is about being a consultant in the software business.

Felienne interviews Zachary Burt about freelancing as a career option. How does freelancing differ from employment? How to do personal marketing and sales? How to find a work-life balance when you are self-employed? We also cover practical tips like deciding on an hourly rate and managing demanding customers.

Felienne interviews Veronika Cheplygina about image recognition. We cover the basic concepts of computer vision, it’s applications and relationship to machine learning.

Travis Kimmel talks with Lara Hogan and Deepa Subramaniam about evidence-based tactics that product and engineering leaders can use to can use to diagnose problems that are holding back their teams, and build healthier, high-performing organizations.

Host Kanchan Shringi spoke with Ellithorpe about defining the core essence of the CTO role, the skills that are key for success in the role, how to gain these skills and mentor others.

Sam Scott, CTO of Oso discusses how to build a global authorization service and challenges with host Priyanka.

Uma Chingunde of Render compares building a PaaS with her previous experience running the Stripe Compute team. Host Jeremy Jung spoke with Chingunde about the role of a PaaS, building on public cloud providers, build vs buy, choosing features, user experience, managing databases, Series A vs later stage startups, and why internal infrastructure teams should run themselves like product teams.

Luca Casonato joins SE Radio's Jeremy Jung for a conversation about Deno and Deno Deploy. They start with a look at JavaScript runtimes and their relation to Google’s open source JavaScript and WebAssembly engine V8, and why Deno was created. They discuss the WinterCG W3C group for server-side JavaScript, why it's difficult to ship new features in Node, and the benefits of web standards. From there they consider the benefits of creating an all-inclusive toolset like Rust and Go rather than relying on separate solutions, Deno's node compatibility layer, use cases for WebAssembly, benefits and implementation of Deno Deploy, reasons to deploy on the edge, and what's coming next.

The exodus of users away from Twitter and Reddit has led many of those information refugees to discover the joy of subscribing to feeds in a reader. RSS and Atom feeds are an enormous open decentralized network that can never be ruined under new ownership -- because there's no owner.

Tara Calishain of ResearchBuzz has written a 4,000-word introduction to RSS for people who are new to the world of feeds:

I could not do ResearchBuzz without RSS feeds. They're invaluable. And I think if you learn more about them, you'll appreciate why I consider RSS the most underrated tech on the Internet. That's what this article is about: I'm going to explain what RSS feeds are, show you how to find them, go over some of the RSS feed readers available, and, finally, list several tools and resources you might find useful on your journey.

... I follow over a thousand RSS feeds which deliver information to me throughout the day. Do you think I could visit a thousand websites a day to check for new information? Even if I tried to visit a thousand a week that would be over 142 websites a day. Assuming it took me two minutes to visit a site and check for new content, I would spend over 4.5 hours a day just visiting websites.

Do you see why I'm so grateful for RSS?

Calishain, who was blogging before Netscape created RSS in 1999, covers a lot more than the basics, showing how to find hidden feeds on websites, check a bunch of feeds for freshness and create keyword-based feeds to search sites like Google News, Hacker News and WordPress. Even experienced readers of readers will learn new things, and there's a collection of nine handy RSS Gizmos she has developed.

On that subject, Calishain just began programming a year ago:

In spring 2022 I decided to find out if I could really learn JavaScript after being diagnosed as autistic. (I'm a high school dropout and didn't think I could learn something like programming.)

I CAN! And I LOVE IT!

Welcome to the not-so-secret society of programmers, Tara! Please slow down a little. You're making the rest of us look bad.

Meghan Elizabeth Kallman and Josephine Ferorelli discuss the politics of pregnancy and childbirth in an era of environmental challenges.

Facing the ongoing impacts of pollution and derailments, activists in East Palestine, Ohio, and Baltimore are teaming up to pursue justice for their communities.

Newsround has been finding out how the cost of living crisis and rising prices have affected children living in the UK.

The new series is nearly here and we now know which ten famous faces will be going into the jungle. Meet all the stars set to star in this year's show - and let us know who you're most looking forward to seeing in action.

Librarian Intern (Norwalk--onsite)

Community College Librarian/Faculty Diversity Internship (Berkeley--onsite)

For my first blog post this year I thought I'd provide you with a couple of light-hearted and entertaining looks at the English language. The first shows you just how confusing the language can sometimes be, whilst the second demonstrates why some suggest that English spelling should be reformed.

Melanie Green is currently Sr. Director of Power Generation at CPS Energy in San Antonio, Texas.

District heating is a system which provides a number of buildings with heat from a central boiler plant through pre-insulated pipes. Pre-insulated pipes are in fact a modern kind of heat culvert or district heating duct, but since these systems... Read more

The post District heating – Heat from a central boiler plant appeared first on EEP - Electrical Engineering Portal.

Soul music is rooted in gritty perseverance, so pairing up stalwarts Bettye LaVette and Charles Walker works on so many levels, it's a miracle it hasn't happened until now. "Yours and Mine" is an exhilarating affirmation of the power to prevail.

This technical article will try to shed some light on the main and auxiliary circuit diagrams of switching three-phase motors via contactor and switching directly. We’ll cover some fundamental schematics with an old-school explanations and logics on how they work.... Read more

The post Main and auxiliary circuit diagrams of switching three-phase motors via contactor and directly appeared first on EEP - Electrical Engineering Portal.

With introduction by storyteller John Harben

Choosing the power of a static UPS system serving a data center is a decision that involves various elements and which cannot be made before, or independently from, the choice of distribution scheme. The main elements to consider can be summarised... Read more

The post Sizing a Static UPS System In Data Center appeared first on EEP - Electrical Engineering Portal.

Lighting is defined as emergency lighting when it is intended for operation when standard lighting fails. Emergency lighting must be powered by an independent energy source (typically a central power supply system) and is classified by the UNI EN 1838 standard... Read more

The post Emergency Lighting Power Supply in Data Center appeared first on EEP - Electrical Engineering Portal.