Engineered Systems | Magazine serving facility, consulting & mechanical engineers with energy-efficient solutions for high-performance buildings.

FEATURED STORY

Using Control Charts To Monitor Room Temperature

Staying Dry & Comfortable With Liquid Desiccants

In the summer, conventional air-conditioning systems in buildings are challenged to meet peak humidity loads. Over time, buildings have reduced their heat (sensible) load, but have done less to reduce their moisture (latent) load. As a result, this moisture load can become too large for conventional air-conditioning systems to handle.

Building On A Swedish Tradition

Reflecting a long-established Swedish commitment to environmental stewardship, the Nelson Cultural Center addition at the American Swedish Institute (ASI) in Minneapolis integrates several technically advanced sustainable features, including a high-efficiency geothermal heating and cooling system that reduces energy consumption by nearly 30 percent (based on an ASHRAE 90.1 baseline) while supporting the Institute’s diverse community programming.

Chillers Past, Present and Future

We had an idea to try something different this month — invite chiller manufacturers to give us their insights on one of two topics. We invited them to either talk about common errors in project design/installation/O&M, with an eye toward helping readers get the intended performance out of their equipment. Or, they could write about what they see happening in this sector in the future. In a stroke of good luck, we had one response to each question. – Ed.)

Calculated Conditioning: The IAQ Of UFAD

Since their introduction in Europe in the 1950s, and their domestic rise in specification during the 1990s, UFAD and displacement ventilation systems promise significant energy savings as a direct result of a higher supply air temperature that yields an increase in the use of economizer or free cooling hours.

The U.S. Green Building Council has launched a new campaign offering free LEED certification to the first projects to certify in the 114 countries where LEED has yet to take root.

Calculated Conditioning: The IAQ Of UFAD

Last month, I addressed the challenge faced by new construction project teams to build faster and cheaper. In the normal project delivery process, this responsibility falls on the construction manager and/or general contractor (CMGC).

MONTH 3- The Energy Conservation Opportunity: Water-Source Heat Pump System Application - Solution Implementation and Monitor, Measure, and Benchmarking

The Lighting/BAS Convergence, Cont’d.

Both new and existing building projects should have lighting control provided, either as part of a standalone system or, ideally, integrated as part of the BAS. But we often find that there are many reasons automated lighting control is not provided, ranging from simple economics to frustration with the programming and support of these systems.

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BOILERS * GENERATORS * CHILLERS

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Videos

Image Galleries

ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!

3/20/13 2:00 pm EST

Risk and Reward within Reason – Identifying Data Center Best Practices via Lessons Learned and CFD Analysis

On-Demand The presentation will be a discussion of current and emerging mechanical best practices informed by real world experience and project based analysis.