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Home » Topics » HVAC Contracting » Technical

Technical
Technical RSS Feed RSS

How to Provide the Best-Cost, Not Least-Cost, Option on New and Retrofit ERVs

The wheel potentially makes the difference in performance
Len Kobylus
November 9, 2015

Selling end-users just an energy recovery ventilator (ERV) without realizing the options or wheel’s long-term performance benefits cheats a facility out its full energy-saving potential, which is ironically the premise for energy recovery in the first place.


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The Basics of Combined Heat and Power

An overview of CHP systems and their benefits
October 19, 2015

Combined heat and power (CHP), also known as cogeneration, is the simultaneous production of electricity and heat from a single fuel source, such as: natural gas, biomass, biogas, coal, waste heat, or oil. CHP is not a single technology, but an integrated energy system that can be modified depending upon the needs of the end user.


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Self-Generating Energy Helps California Avoid Blackouts, Lower GHGs

Flow and power monitoring key to a successful program
Jack Sine
October 5, 2015

If you remember the rolling blackouts suffered by Californians in the years 2000 and 2001, you may also remember that they cost companies in excess of $50 billion in lost manufacturing capacity and sales. What you may not remember is the good that came out of that disaster.


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Boiling Down Boiler Efficiency

Seasonal efficiency is one of the most important measurements
John Kopf
September 21, 2015

Boiler efficiency is an important factor in selecting a space heating boiler, but what does “boiler efficiency” really mean? In selecting the right boiler for a commercial application, it is important to understand the difference between the various types of boiler efficiencies.


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Both Energy Efficiency and IAQ Are Goals at Net-Zero Energy House

Focusing on only one can come at the cost of the other
September 7, 2015

The National Institute of Standards and Technology (NIST) says you can breathe easy in its net-zero energy house. After 15 months of monitoring, researchers report that even with its airtight construction, IAQ in the two-story home that serves as a laboratory is better than the IAQ in new, conventionally built houses.


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Can We End the Thermostat Wars?

Office workers complain it’s too hot or too cold; it’s hard to make it just right
Greg Mazurkiewicz
August 17, 2015

The so-called “thermostat wars” in office buildings have been written about in both the consumer and trade media. Some in the office say it’s too hot. Others say it’s too cold. Building operators, and their HVAC contractors, try to find a satisfactory solution, but it’s elusive, as shown in a study by Software Advice.


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Chiller Upgrade Provides Energy Efficient Data Center

Waste Management is seeing about a 100 kWh drop in monthly power utilization
August 3, 2015

Data centers continue to evolve and become more efficient. The need for efficient HVAC is essential to ensure cost-effective, reliable operation given servers generate significant amounts of heat. As part of a facility upgrade, Waste Management replaced its chiller plants to serve its production data center facility in Austin, Texas.


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Ladder Safety Quick Tips

Follow these tips to avoid injury
July 20, 2015

Falls from portable ladders (step, straight, combination, and extension) are one of the leading causes of occupational injuries and fatalities. The following are some quick tips from the Occupational Safety and Health Administration (OSHA) on ladder safety.


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Making Net Zero Energy Retrofits a Market Reality

The renovation of the home utilizes such elements as solar and prefabricated panels and is designed to be executed quickly
July 6, 2015

A Netherlands-based consortium called Energiesprong brokered a deal between affordable housing associations and builders to retrofit 111,000 homes in the Netherlands to net zero energy levels. Net zero energy means that, on an annual basis, a home does not consume more energy than it produces.


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Stanford’s Central Energy Facility Features Heat Recovery, Predictive Control

Sustainability brings savings
June 22, 2015

In October 2009, Stanford University released a comprehensive and long-range Energy and Climate Action plan aimed at maximizing energy efficiency and utilizing clean, renewable energy on campus. The plan includes a cutting-edge energy supply system known as the Stanford Energy System Innovations (SESI) project.


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