Environmental Systems Design Inc.

Chicago, United States

Environmental Systems Design Inc.

Chicago, United States
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Rastogi A.,Environmental Systems Design Inc. | Choi J.-K.,University of Dayton | Hong T.,Yonsei University | Lee M.,Yonsei University
Applied Energy | Year: 2017

Various versions of the Leadership in Energy and Environmental Design (LEED®) have been introduced with the addition of more stringent sustainability parameters and credit scoring schemes over the past decade. Such changes in LEED versions strongly affect the energy performance and LEED scores of the target building in the LEED certification process. Therefore, to validate and improve the current LEED version, it is crucial to investigate and compare the impact of different LEED versions on the building energy performance and scoring scheme. However, researches comparing the sustainability metrics for mid-rise multi-family buildings are rare. Therefore, this paper investigates the potential changes in the energy performance resulted from applying different LEED versions (i.e., LEED v3 and v4) for the Energy and Atmosphere (EA) category. Towards this end, a case study was carried out with energy modeling and simulation using TRACE 700 to compare the changes in the energy performance of four analysis scenarios applied to an existing mid-rise multi-family building located in Ohio. Results showed notable changes in LEED points when different versions of LEED using different ASHRAE Standards (i.e., ASHRAE Standards 90.1-2007 and 90.1-2010) are applied for the building energy analysis. In particular, mid-rise multi-family buildings could benefit from LEED v4 in terms of LEED credits as the prerequisite for the minimum energy performance improvement in EA category became significantly lenient compared to LEED v3. On the contrary, when the percentage energy performance improvement is over 34%, mid-rise multi-family buildings would benefit from LEED v3 as it becomes difficult to gain more points for similar energy performance improvement in LEED v4 compared to LEED v3. Various stakeholders including USGBC and government can benefit from using the key findings of this study for improving the LEED certification and national energy standards. © 2017 Elsevier Ltd

Lorenz E.,Environmental Systems Design Inc. | Vallort J.K.,Environmental Systems Design Inc.
Consulting-Specifying Engineer | Year: 2012

The U.S. Green Building Council (USGBC) will be launching the latest edition of the Leadership in Energy and Environmental Design (LEED) rating system (LEED 2012) across all certification types. LEED 2012 used commissioning prerequisites and credits as well as Measurement and Verification credits to place more of an emphasis on building performance and verifying actual metered data. A new prerequisite is that at a minimum, energy consumption must be tracked at one-month intervals or in accordance with utility billing intervals. Enhance commissioning intent remains the same as in LEED 2009, which includes verification of documents created as a part of fundamental commissioning as well as completing contractor submittal reviews. Advanced energy metering outlines the installation of advanced energy metering for all whole-building energy sources and major end uses that represent 10% or more of the total annual building consumption.

Griffin B.,Environmental Systems Design Inc.
ASHRAE Journal | Year: 2015

Data center design has always been associated with words like availability, reliability, and precision cooling. Although availability and reliability remain critical, energy efficiency, flexibility, scalability, speed to market, and cost effectiveness are driving modern data center design. The Digital Chicago Datacampus took advantage of efficiency improvements made possible by improved server equipment thermal tolerances, which open up the opportunity to condition a data center space without mechanical cooling for significant portions of the year in a wide range of climates. The campus also integrates the efficiency improvements with the concepts of modularity, repeatability, and speed to market. The result is a final product that was not only reliable and energy efficient, but also relatively simple to build, operate, maintain, and expand. Copyright 2014 ASHRAE.

Kos C.,Environmental Systems Design Inc. | Quadi D.,Environmental Systems Design Inc.
Consulting-Specifying Engineer | Year: 2010

Several steps that are followed to create an energy-efficient design for a Chicago's Rush University Medical Center (RUMC) are presented. The first step in creating an energy-efficient design is to perform a thorough analysis of the hospital's goals and functions and the next step is to research all applicable national and local codes and standards. ASHRAE standard 170 will be the first national standard to specifically deal with hospital ventilation and infection control. Environmental System Design Incorporation (ESD) performed a building analysis that examined energy usage at Rush's existing hospital and determined that energy was being used at a rate of 5.5-W/sq ft in the 30-year-old facility. The ESD design team went to the Philips factory to test 20-W LED and verify their lumen output prior to specifying them at Rush. The T8 and T5 lamps have different specifications but the light output per unit length is almost identical due to lamp behavior in different ambient temperatures.

Building systems data can be used to manage equipment operations and determine how to run the building more efficiently. Owners of a multitenant building may install meters in each leased space to determine how much energy is being consumed per tenant. Metering energy use will provide the information operators need to make informed decisions and provides essential information to the commissioning agent when recommissioning or retro-commissioning a building. Green rating systems, such as the U.S. Green Building Council's LEED program, recognize the essential role of meters as a feedback mechanism for the operation and maintenance of a building, and they award points for carrying out a proper measurement and verification (M&V) plan, which may include realtime energy metering. The most common standard used for M&V is the International Performance Measurement and Verification Protocol (IPMVP), available from the Efficiency Valuation Organization.

Debord D.E.,Environmental Systems Design Inc.
Consulting-Specifying Engineer | Year: 2011

Experts suggest that significant benefits can be realized from properly designed rainwater harvesting systems. They suggest that such alternative water source systems (AWSS) need to be designed and sized by design professionals possessing either a Certified in Plumbing Design CPD) certification from the American Society of Plumbing Engineers (ASPE) or a Professional Engineer (PE) license. The roof is a critical component of the rainwater harvesting system and will define some of the other system components, such as filtration. Recommended roofing materials to achieve these objectives include standing seam metal, ethylene propylene diene monomer (EDPM), and slate or tile. The rainfall rate used for designing roof drainage systems is also related to the average frequency of occurrence and the time that it takes runoff to reach the collection device from the most remote portion of the contributing roof area.

Booster pumps elevate water pressure and flow in plumbing systems and help in meeting the water requirements of larger facilities. Packaged booster pump systems help large facilities meet the unique pressure and flow demands required of their plumbing fixtures, specialized plumbing equipment, irrigation systems, and HVAC equipment. The booster pump moves booster pump moves building's water source to the plumbing distribution system by increasing the water pressure. A booster pump is required by code when the water pressure from the local water source is unable to meet the required flow pressures at the fixtures. It is expected that booster pumps will become more common in residential buildings and to increase in size due to increased pressure requirements. It is also expected that critical and institutional facilities will require commissioning on all booster pump installations.

Benchmarking, an energy performance comparison, can boost energy efficiency and lower building operating costs. Benchmarking involves measuring and rating a building by comparing it to a standard. Some owners and managers collect energy data for their entire portfolio of buildings, calculate the energy use intensity (EUI), which is energy consumed per square foot, and then choose a baseline as the year with the highest consumption. One of the most widely used energy benchmarking systems in the United States is Energy Star Portfolio Manager, a free Web-based tool maintained by the U.S. Environmental Protection Agency (EPA). Users input basic building parameters, such as space type, square footage, hours of operation, number of occupants, and number of personal computers (PCs), as well as 12 months of total energy data. The National Institute of Building Sciences is establishing a High-Performance Building Data Collection Initiative to determine a methodology for collecting and disseminating energy and building attribute data.

Streich M.,Environmental Systems Design Inc. | Tumber S.,Environmental Systems Design Inc.
Consulting-Specifying Engineer | Year: 2015

Mechanical engineers should design generator set rooms so that the electrical system meets the design goals set by the owner and electrical engineer. © 2015, Reed Business Information (Cahners). All rights reserved.

Cohen D.,Environmental Systems Design Inc.
Engineered Systems | Year: 2014

Chicago's new 30,000-sq-ft Ping Tom Memorial Park Fieldhouse, designed by Wight & Company and MEP engineering firm, Environmental Systems Design (ESD), maintains a lean energy profile to serve local resident. The design, its LEED Gold-status pending, features high efficiency lighting, distributed WiFi, HVAC systems connected to a geothermal well field, and amenities including a gymnasium, clubroom, full-size competition pool, zero depth pool, and fitness rooms. Key systems include a vertical borehole geothermal system with high-efficiency modular heat pumps, high-efficiency condensing boilers coupled with low temperature hot water distribution, a refrigerant heat recovery system in the pool air handler, air-to-air heat recovery serving the large locker rooms, and a rainwater harvesting system. The hydronic system has 25% propylene glycol to allow for year-round operation and diminish freezing potential. Geothermal water distribution is connected to modular heat pumps located in each room or zone throughout the fieldhouse.

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