Engineered Systems - September 2008 - (Page 34)

Application Checklist Gymnasiums / Places of Assembly Published as part of “Back to Basics” and “HVACR Designer Tips” for July through September 2008. ✓ The following system analysis and analytical scorecard can be used to assess the type of HVAC system for school gym application based on good engineering practice and other state and local requirements. The project approach is based in part on: • 2008 ASHRAE Handbook — HVAC Systems and Equipment, Chap- • Air motion . . . . . . . . . . . . . . . . . . . . . . . . . [8] • System constraints. . . . . . . . . . . . . . . . . . . . . [3] • First cost . . . . . . . . . . . . . . . . . . . . . . . . . . [8] • Total score: . . . . . . . . . . . . . . . . . . . . . 77 SUSTAINABLE DESIGN SCORECARD (MAXIMUM SCORE = 70) • Fundamental and additional building system commissioning. • Optimize energy performance . . . . . . . . . . . . . . • Renewable energy (cogeneration unit) . . . . . . . . . . • On-site • Additional commissioning . . . . . . . . . . . . . . . . • System manual • Measure and veriﬁcation . . . . . . . . . . . . . . . . • BAS trending • Remote monitoring • Electrical power quality and energy monitoring • Training ease to understand . . . . . . . . . . . . . . . • Local and regional material . . . . . . . . . . . . . . . .[10] . [3] . [0] .[10] . [5] ter 4, “Air Handling & Distribution” • 2007 ASHRAE Handbook — Applications, Chapter 4, “Places of Assembly” • 2005 ASHRAE Handbook —Fundamentals, Chapter 35, “Duct Design” In addition, our scoring is based on our own design, construction, commissioning, and building management experience as it pertains to places of assembly. Approximately 70% of HVAC systems are decentralized, and for this application, the HVAC system is a standard decentralized system installation. Scoring may differ based on project location, current costs, and local engineering experience. The analysis and selection of the optimum HVAC system for this application is ideally suited, based on simplicity of the gymnasium HVAC system, and ﬁrst cost. Other beneﬁts and features of an HVAC system such as life cycle, sustainability, etc., are frequently of less importance for many schools. This assessment can be part of optimizing energy performance when pursuing LEED® project certiﬁcation, as well as other highperformance grant programs, but probably not a priority for a school district/town due to ﬁnancial considerations on their part. Application Notes • Zero to 10 score, with 10 being excellent and 0 being poor or not . [8] . [2] Total score: . . . . . . . . . . . . . . . . . . . . . . 38 SUSTAINABLE BUILDING MANAGEMENT SCORECARD (MAXIMUM SCORE = 90) • Assets barcoded . . . . . . . . . . . . . . . . . • Approximate number of annual workorders . . . • Serviceability outside space . . . . . . . . . . . • Serviceability during normal working hours . . . • Ease of replacement at end of useful service life • Qualiﬁcation of in-house maintenance staff . . . • Adaptation to peak electrical load shaving . . . • Operating cost . . . . . . . . . . . . . . . . . . • Maintenance cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .[10] . [8] .[10] .[10] . [8] . [5] . [0] . [7] . [8] applicable. • There are very few highly energy-efﬁcient HVAC systems for this size project installation. SYSTEM ANALYSIS AND SELECTION SCORECARD (MAXIMUM SCORE = 150) • Temperature control . . . . . . . . . . . . . . • Humidity control . . . . . . . . . . . . . . . . • Air ﬁltration . . . . . . . . . . . . . . . . . . . • Multiple space temperature control capability . • Utility company incentive . . . . . . . . . . . • Equipment redundancy . . . . . . . . . . . . • Equipment useful service life. . . . . . . . . . • Radiant noise and/or vibration . . . . . . . . . • Ambient noise . . . . . . . . . . . . . . . . . • Capacity control . . . . . . . . . . . . . . . . • Ventilation system . . . . . . . . . . . . . . . • Metering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [5] [5] [5] [0] [5] [5] [8] [6] [6] [5] [8] [5] Total score: . . . . . . . . . . . . . . . . . . . . . . 66 Total HVAC system application score is 181 points out of a possible 310 points, for a rating of 58%. McKew is an HVAC commissioning engineer in the Building Solutions Group at RDK Engineers. If you have any comments, suggestions, or questions regarding this designer checklist, contact Amanda McKew at amckew@rdkengineers.com. 34 En gi neer ed S y stem s September 2008

Table of Contents Feed for the Digital Edition of Engineered Systems - September 2008

Engineered Systems - September 2008 Contents Editor's Note HVAC Challenge Back2Basics Case In Point Commissioning Building Automation HVACR Designer Tips Application Checklist LEED®, Or Get (It) Out Of The Way? BACnet Supplement Race To Market Steam Humidification In Pharmaceutical Facilities Outside Air, Inside Data Centers Forecast: Increasingly Cloudy And Under Control Products Computers & Software Literature Glossary Classifieds Advertiser Index Tomorrow's Environment

Engineered Systems - September 2008

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.