While new DOE standards drive innovation and opportunity within the HVAC industry, they also add pressure and complexity for manufacturers.

Manufacturers were eager to show off their latest energy-efficient RTUs, many of which can also be used to meet building owners’ decarbonization and electrification goals.

Much like subcooling, understanding and calculating superheat can be somewhat difficult for newbie technicians.

Through the new integration, ecobee thermostat owners who also own Generac home standby generators can easily see the status of the generator and remedy potential issues.

Technicians need to understand the basic electrical fundamentals and how they relate to each other in order to better troubleshoot electrical failures.

Unfortunately, we can easily forget the role that suction driers can play in protecting the compressor and the compressor oil.

While balanced ventilation does have energy benefits, there is a misconception about its ability to reduce humidity.

The "magic number" 1.08 is convenience factor. It is a bunch of math combined into one factor as a shortcut, although sometimes more precise calculation is better.

Posted by Xen . org security team on Nov 12

While many in the industry are pleased the DOE has taken the opportunity to work together to develop its final rule, exactly how much of the working group’s recommendation the regulatory agency will adopt remains to be seen.

After six meetings, the working group reached consensus and provided recommendations for energy conservation standards, test procedures, and metrics.

On Dec. 17, 2015, the U.S. Department of Energy (DOE) finalized new negotiated energy conservation standards for commercial air conditioners, heat pumps, and commercial warm-air furnaces, otherwise known as rooftop units (RTUs).

More than half of U.S. commercial building space is cooled by packaged HVAC equipment, according to the U.S. Department of Energy (DOE). So it comes as no surprise that energy efficiency is the biggest trend driving the rooftop market.

Two major HVAC industry organizations have weighed in on a DOE proposal that would phase out noncondensing gas furnaces for consumer use beginning in about six years.

Posted by Dave Aitel via Dailydave on Nov 02

In this episode we take a brief look at Jetbrains' Meta Programming System, a language workbench for creating external DSLs or for extending existing languages (such as Java). In a brief telephone discussion, Konstantin Solomatov explains what the system does and how it works. The system has recently been released into public beta and will be made available under then Apache 2.0 Open Source license.

Jonathan Boccara, author of The Legacy Code Programmer’s Toolbox discusses understanding and working with legacy code. Working with legacy code is a key skill of professional software development that is often neglected.

Richard L. Sites discusses his new book Understanding Software Dynamics, which offers expert methods and advanced tools for understanding complex, time-constrained software dynamics in order to improve reliability and performance. Philip Winston spoke with Sites about the five fundamental computing resources CPU, Memory, Disk, Network, and Locks, as well as methods for observing and reasoning when investigating performance problems using the open-source utility KUtrace.

Stanisław Barzowski of XTX Markets and a committer on the jsonnet project joins SE Radio's Robert Blumen for a conversation about the jsonnet programming language. A superset of JSON, jsonnet adds programming language capabilities, particularly to address the need to handle large but mostly repetitive JSON configurations. They discuss the project’s history, use cases for Grafana and Kubernetes config, and interoperability with YAML. They examine jsonnet details, including the command line, constrained capabilities of the language, and objects and inheritance, and then consider the toolchain: compiler, formatter, and linter, as well as test frameworks and testing, package management, and the language’s performance. Barzowski describes four implementations -- go, C++, Rust, and Scala -- as well as popular libraries and the standard library.

Andy Suderman, CTO of Fairwinds, joins host Robert Blumen to talk about standing up a kubernetes cluster. Their discussion covers build-your-own versus managed clusters provided by cloud services, and how to determine the number of kubernetes clusters an organization needs. Andy describes best practices for automating cluster provisioning, and offers recommendations about customizations and opinionation of cloud service providers, choice of container registry, and whether you should run complementary services such as CI and monitoring on the same cluster. The episode also examines the day 0/day 1/day 2 lifecycle, cluster auto-scaling at the cloud service level, integrating stateful services and other cloud services into your cluster, and kubernetes secrets and alternatives. Finally, they consider the container-network interface (CNI), ingress and load balancers, and provisioning external DNS and TLS certificates for cluster services.

" Writing an entire article on the Apex 3 was a really easy task thanks to the higher actuation point and we did not make any mistakes like on the regular high-speed gaming-only keyboards. This is a good point to recommend when using the keyboard in corporate offices as well: the new SteelSeries domes are silent, while the full-size layout allows ... [PCSTATS]

The Heritage Foundation has a plan to rewrite the rules of government under a second Trump term, and they’ve helpfully laid it all out for public viewing.

Faced with the spread of militarized police training facilities known as "cop cities," grassroots activists are taking the call to #DefundPolice to cities nationwide.

In Tijuana, Uganda, and Gaza, refugees facing dispossession, displacement, and constant violence are finding moments of solace in the art of dance.

Para los inmigrantes que enfrentan pérdidas desde lejos, el apoyo puede provenir de la comunidad, nuevos rituales y mejores políticas.

Tricia Hersey’s new book insists we have the power to refuse capitalism’s grind culture and instead prioritize rest. 

In the design of electrical power systems, the ANSI Standard Device Numbers denote what features a protective device supports (such as a relay or circuit breaker). These types of devices protect electrical systems and components from damage when an unwanted... Read more

The post Protection Relay – ANSI Standards appeared first on EEP - Electrical Engineering Portal.

These standards are the whole of the prescriptions on the basis of which machines, apparatus, materials and the installations should be designed, manufactured and tested so that efficiency and function safety are ensured – and all according to the UK Electrical... Read more

The post UK Electrical Industry British Standards (BS) appeared first on EEP - Electrical Engineering Portal.

– Array Size: 10, 12-volt, 51-watt modules; Isc= 3.25 amps, Voc= 20.7 volts – Batteries: 800 amp-hours at 12 volts – Loads: 5 amps DC and 500-watt inverterwith 90% efficiency. The PV modules are mounted on the roof. Single-conductor cables... Read more

The post Calculation Example of Small Photovoltaic (PV) Residential Stand-Alone System appeared first on EEP - Electrical Engineering Portal.

In 2004, I embarked on an intensive nine-month training program in protection and instrumentation. This experience laid the foundation for my deep understanding of substation protection systems, combining both theoretical knowledge and practical application. The first protection scheme we delved... Read more

The post Mastering Distance Protection and Calculations Part 1: Advice and Serious Warnings appeared first on EEP - Electrical Engineering Portal.

The first part of this article series delved into the fundamentals of overcurrent protection, exploring the intricacies of relay coordination, the impact of source impedance, and the application of distance protection. These foundational concepts laid the groundwork for understanding how... Read more

The post Mastering Distance Protection and Calculations Part 2: Never Mess Up Protection Accuracy appeared first on EEP - Electrical Engineering Portal.

The space requirements of a power substation depend on the equipment to be housed, and on whether a new building can be erected for it or it has to be fitted into an existing building. In the case of an... Read more

The post LV/MV power substation equipment and wiring requirements you must understand appeared first on EEP - Electrical Engineering Portal.

Understanding how water behaves during freezing and thawing is essential for effective water damage restoration during the winter months.

The IICRC and its volunteers develop two accredited-industry standards!

This essential coverage safeguards against environmental risks, including mold and hazardous materials, encountered during cleanup projects. Explore the key components of pollution liability insurance, from clean-up costs to non-owned disposal site coverage, and learn how to secure the right policy for your business needs.  

The Institute of Inspection, Cleaning and Restoration Certification (IICRC) is seeking volunteers from the User category to join the consensus body for the revision of the IICRC S300 Standard for Professional Upholstery Cleaning. Users of professional upholstery cleaning services are encouraged to apply by contacting IICRC Standards.

Los votantes tendrán la oportunidad de proponer candidatos por escrito, si así lo desean.

The post Guía electoral: No hay candidatos para el escaño abierto para el concejo municipal de Stanardsville appeared first on Charlottesville Tomorrow.

El candidato no respondió a los intentos de contactarlo.

The post Guía electoral: El concejal actual es el único candidato para el distrito de Stanardsville del consejo de supervisores del condado de Greene appeared first on Charlottesville Tomorrow.

Dr Tania Nagpaul Youth at-risk typically refers to those who may be seriously anti-social, homeless, who may have dropped out of school, taken to substance abuse or engaged in illegal activities. The factors that place these young people at risk in the first place, such as poverty, family dysfunction and disturbed neighbourhoods, are often not factored into the equation. Dr Tania Nagpaul and Ms Chen Jinwen from the Lien Centre for Social Innovation at SMU have published a study which used the Self-determination Theory offered by Deci and Ryan in a past research as a lens to better understand the needs of youth-at-risk and their fulfilment from the vantage points of both social service professionals and youth themselves. In this podcast, Dr Tania Nagpaul discusses the key findings of this research and how it generates a nuanced understanding of the needs of youth in Singapore. Additional Info Self-determination theory as a framework for understanding needs of youth at-risk: Perspectives of social service professionals and the youth themselves - by Tania Nagpaul, Jinwen Chen

As the effects of climate change continue to grow, the world is more aware than ever about the concept of being sustainable. Most people's entry point to sustainability consists of the ‘Three R’s’, Reduce, Reuse and Recycle. The question is, what makes waste reusable and recyclable? And what role does informal labour have to play in this journey to sustainable living? In this podcast, Assistant Professor of Urban Studies (Education) at the Singapore Management University, Aidan Wong, explains his research on the value creation process within e-waste recycling networks, including the role of the karang guni, in Singapore and Malaysia. [About the SMU CP Podcast Series] SMU City Perspectives brings together researchers from Singapore Management University (SMU) for insightful conversations exploring the pivotal trends in digital transformation, growth in Asia, and sustainable living. Get inspired and discover solutions that will help you drive more impact in your work and shape the future of cities.

Planetary scientists are using a volcanic flow field in New Mexico to puzzle out how long past volcanic eruptions on Mars might have lasted, a finding that could help researchers determine if Mars was ever hospitable to life. People don't usually think of New Mexico as a volcanically active place, but it has some of the youngest (geologically speaking) large lava flows in the continental United States.

The post New Mexico badlands help researchers understand past Martian lava flows (video) appeared first on GeoSpace.

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.

The patented solution brings life-changing potential for over 60 million Americans with physical limitations, while also reducing plastic usage.

Amcor and Mespack R&D teams collaborated to make iterative adjustments to machine parameters and film structures and produce a new 2L pouch that meets performance expectations in terms of sustainability, durability, and functionality.

Honey I’m Home! is a range of dog treats that, in just 16 months, has transformed the by-products of India’s village buffalo farmers into a range that has taken the pet food market by storm.

The new product, a wax-free twist-wrap made entirely from paper, prioritizes recyclability and supports the global shift toward sustainable products.

Veterans Administration Bariatric Surgery Workgroup standards for bariatric surgery psychological evaluations - 2007.

Teaming up with the right packaging industry partners can play a critical role in helping companies create eye-catching, intelligently designed packages.

New white paper aims to illuminate the role that packaging can play in reducing household food waste while providing insight into consumer knowledge of packaging’s value.