Engineered Systems - March 2009 - (Page 51)

expectations are identified. There, initiatives such as energy design, material selection, IAQ, and water consumption are addressed. The participants of this meeting include the complete architectural/engineering team and their consultants, local utility representatives, the construction manager, commissioning agent, energy modeler, and various stakeholders, including energy manager and maintenance. A high-performance plan is then established. This plan is reviewed, modified and upgraded at various design milestones (schematic design, design development, and construction documentation). Some examples include: • Energy modeling • Building envelope optimization • Lighting strategies • Solar energy • HVAC controls and energy management strategies • Building commissioning • Continuous improvement Further discussion on each of these principles follows. Since the implementation of the high-performance design guidelines, which outline these and other initiatives, the district has seen an increase in faculty, staff, and student performance and precipitous decline in operating costs, as predicted by the energy modeling program. ENERGY MODELING A key ingredient of the design process of a New Haven school is the energy simulation report that is produced by the energy modeling consultant at each phase of the design. This document is used throughout the design process for several purposes. Most importantly, it allows the team to quantify the life-cycle costs of various sustainable design options. This allows team members to analyze the impact of decisions based on empirical data, rather than emotion or ‘gut feel.’ The analysis of energy conservation measures typically focuses on heating systems, cooling systems, lighting, and building envelope performance. The Energy Simulation Report also allows the team to understand how the building as designed will perform relative to a minimum energy efficiency standard (ASHRAE 90.1 2001) and the NHSCP goal standard, the Energy Star Target Finder. Typically, the Energy Star standard for a New Haven School is approximately 50 kBtuh/ sq ft, while the ASHRAE 90.1 standard has averaged approximately 95 kBtuh/sq ft (these values will differ depending on the specific school being modeled). The New Haven schools that have been modeled over the past two years have ranged from 45 to 60 kBtuh/sq ft expected energy usage. Energy modeling has contributed significant value to the high-performance design process in New Haven, particularly with building envelope and HVAC system improvements. Design teams have consistently produced designs with at least 30% energy savings above ASHRAE 90.1 2001 (the current code), and recent designs have averaged closer to 40% savings. Several additional sustainable concepts Smart People LEEDing The Way To TEMPERATURE Up to 2 LEED pts Smart Products Smart buildings ENERGY METERS Up to 23 LEED pts Monitor temperature levels, providing ideal environmental conditions minimizing energy used. LIGHTING CONTROL Up to 1 LEED pt A CLEANER FUTURE You can’t measure what you don’t monitor assess, quantify, & maximize energy performance. form FLOW METERS Up to 2 LEED pts Reduce energy consumption, control energy waste withoccupancy sensors light a room only when it’s occupied. Maximize water eﬃciency. CO2 SENSORS Up to 1 LEED pt HUMIDITY Up to 2 LEED pts For more information on how Veris products can help you meet your LEED certiﬁcation needs, call 800.354.8556 or email sales@veris.com VERIS INDUSTRIES AT YOUR SERVICE www.veris.com 800.354.8556 Eﬃciently control ventilation, conditioning outside air only when needed. Monitor humidity levels,providing ideal environmental conditions minimizing energy used Input 191 at www.esmagazine.com/instantproductinfo w w w. esmag a zine . c o m 51 http://www.veris.com http://www.esmagazine.com/instantproductinfo http://www.esmagazine.com

Table of Contents Feed for the Digital Edition of Engineered Systems - March 2009

Engineered Systems - March 2009 Contents Editor’s Note Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist Teaching An Old School New Tricks Basics For Absorption Chillers A New Haven For Sustainable Schools Glossary Classifieds Advertiser Index Tomorrow’s Environment

Engineered Systems - March 2009

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.