Building Commissioning Guidelines

Year: 2007
No of Pages: 125
Edition: 1st edition
Size: 2.7 MB
File Format: PDF
Book Description:

Building commissioning can ensure that a new building begins its life cycle at optimal productivity, and improves the likelihood that the building will maintain this level of performance.

The Building Commissioning Guidelines are divided into two sections:

Introduction to Commissioning
This section presents building owners with the definition, benefits, costs and savings of building commissioning, as well as three real-life case studies. Part I also provides guidance for selecting a commissioning provider and a rundown of each commissioning team member's role. Finally, it explains what to expect during the commissioning process and offers operation and maintenance tips that ensure the persistence of building commissioning benefits over the long term.

Commissioning Guide for Design Professionals
After a brief recap of the definition and history of building commissioning, this section explains how designers benefit from commissioning and offers a guide to provider qualifications. It also defines who manages the commissioning contract and traces the incorporation of commissioning into each phase of the building project. After a brief rundown of the roles and responsibilities of each member of the commissioning team, this section offers tips on how to market commissioning services to clients. The Appendices contain sample documents, checklists, and "commissioning-friendly" specification language.

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ASHRAE District Cooling Guide

(s): American Society of Heating Refrigerating and Air-Conditioning
Publisher: American Society of Heating Refrigerating and Air-Conditioning
Year: 2013
No of Pages: 238 page
Edition: 1st edition
Size: 98 MB
File Format: PDF
Book Description:
The District Cooling Guide provides design guidance for all major aspects of district cooling systems, including central chiller plants, chilled-water distribution systems, and consumer interconnection. It draws on the expertise of an extremely diverse international team with current involvement in the industry and hundreds of years of combined experience.

In addition to design guidance, this book also includes a chapter dedicated to planning, with additional information on system enhancements and the integration of thermal storage into a district cooling system. Guidance on operations and maintenance, including several case studies, is provided to help operators ensure that systems function as intended. Finally, for those interested in a more in-depth analysis, the District Cooling Guide contains a wealth of references to information sources and publications where additional details may be found.

This guide is a useful resource for both the inexperienced designer as well as those immersed in the industry, such as consulting engineers with campus specialization, utility engineers, district cooling system operating engineers, central plant design engineers, and chilled-water system designers.

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HVAC Advanced Simulation Guidebook Volume II The High Performance Building Process

Year: 2010
No of Pages: 33
Edition: 1st edition
Size: 2.9 MB
File Format: PDF
Book Description:
This second volume of the Advanced Simulation Guidebook series is intended to teach readers about the high performance building process for commercial new construction. The goal of the high performance building process is to create buildings that meet owner and occupant needs in terms of energy efficiency, thermal comfort, and other sustainability areas-and do so in a way that reduces the necessary design effort and construction cost impact.

Commercial new construction projects in California have a long history of achieving exemplary energy efficiency, particularly when compared to the level of efficiency typical of projects in other parts of the United States. Since the introduction of California's Title 24 Standards in 1978, Golden State projects have been required to comply with one of the most stringent energy codes in the world. The performance requirements in Title 24 have been continually revised over the years as new energy technologies and design techniques have become available. The current Title 24 Standards require a high level of energy efficiency, and compliance with these standards is not a "given" without employing an integrated design process and efficient building systems.

Today, many projects are pursuing even higher levels of energy efficiency than what is required by Title 24 as a result of participation in utility-sponsored incentive programs, such as Savings By Design. Projects may also be seeking certification under the " Leadership in Energy and Environmental Design" (LEED) or the "Collaborative for High Performance Schools" (CHPS) green building rating/certification systems.

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ASHRAE Pocket Guide for Air-Conditioning, Heating, Ventilation and Refrigeration (IP) 8th edition

(s): American Society of Heating Refrigerating and Air-Conditioning Engineers
Publisher: American Society of Heating Refrigerating and Air-Conditioning Engineers
Year: 2014
No of Pages: 340 Pages
Edition: 8th edition
Size: 13.3 MB
File Format: PDF
Book Description:
The ASHRAE Pocket Guide is packed with practical and useful information and is designed for immediate use. This eighth edition, revised and expanded for 2013, includes properties for new refrigerants, new data on refrigerant safety, ventilation requirements for residential and nonresidential occupancies, occupant thermal comfort, extensive data on sound and vibration control, thermal storage, radiant-panel heating and cooling, air-to-air energy recovery, space air diffusion data, equipment heat load data, combustion turbines, fuel cells, ultraviolet lamp systems, and more. This editions updates include data from the four current volumes of the ASHRAE Handbook series, including the 2013 ASHRAE Handbook-Fundamentals, and from the 2010 and 2013 editions of ASHRAE Standards 15, 34, 55, 62.1, 62.2 and 90.1.

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ASHRAE Pocket Guide (SI) 7th edition Click Here
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The HVAC Simulation Guidebook Volume I

Year: 2012
No of Pages: 64
Edition: 2nd edition
Size: 5.3 MB
File Format: PDF
Book Description:
First published in 2007, is one of the most popular Energy Design Resources design guidelines. This second edition (2012) has been updated to cite new research and reflect recent changes in the California Building Energy Efficiency Standards (Title 24 2008). It contains three chapters with step-by-step instructions on how to simulate the following advanced HVAC technologies:

Underfloor Air Distribution
Underfloor air distribution (UFAD) and thermal displacement ventilation (TDV) have become increasingly common in commercial new construction because they are energy-efficient, enhance indoor air quality, and increase flexibility for space reconfiguration. However, conflicting opinions exist concerning the benefits of UFAD and TDV. This often leads to inappropriate analysis and unrealistic customer expectations. There are many different notions regarding the energy efficiency of UFAD and TDV systems, with some people claiming that these systems save little or no energy, while others suggest that they can cut HVAC energy usage by fifty percent or more. To help the energy modeler evaluate the energy benefits of UFAD and TDV, this simulation guidebook identifies the key characteristics that distinguish UFAD and TDV systems from traditional overhead systems and presents a logical, engineering-based method for analyzing UFAD and TDV with DOE-2-based simulation programs.

Energy Efficient Chillers
Advances in heat transfer surface technology, digital control, and variable frequency drives have resulted in chillers that are much more efficient at part load and low lift conditions than those available ten years ago. For example, many chillers equipped with Variable Frequency Drives (VSDs) perform up to three times better at 30-50% load when chilled water supply temperature is raised and entering condenser water temperature is lowered.
At present, VSDs are only available on centrifugal chillers. To achieve any savings, condenser water temperature must be lowered on centrifugal chillers with VSDs. This is due to the fact that these chillers operate with both inlet vanes and VSDs to achieve both capacity reduction and to keep out of surge. If the entering condenser water temperature is kept high (high chiller lift), the capacity control is entirely with the inlet vanes, and the chiller will be less efficient than the same chiller without a VSD due to the drive losses.

DOE-2-based simulation programs have the capability to accurately model the chiller performance if the programmer specifies appropriate performance curves. However, this approach is often overlooked by building simulation programmers, who opt to use default chiller performance curves rather than develop curves calibrated for the specific chillers under investigation. This significantly limits the effectiveness of the energy model as a tool for chiller selection and optimization. By developing chiller performance curves to match the performance of the specific chillers being modeled, energy modelers can accurately reflect the product capabilities of each chiller, and avoid the over or underestimation of savings that commonly occurs with default curves.

Accordingly, this simulation guidebook addresses the following topics to present strategies for modeling customized chiller curves in DOE-2-based simulation programs:
  •  Chiller curves used to define chiller performance data in DOE-2
  •  Two methods for developing chiller curves and implementing them into the DOE-2 model
  •  Manufacturer's data necessary to generate chiller curves.
Advanced Control Sequences
The recent widespread use of digital controls in building construction has greatly expanded the opportunities for optimizing building efficiency. Using digital controls provides more accurate sensing of data and enhances flexibility for modifying control logic. However, relatively few buildings that use digital control technologies attain their full potential for costeffectively minimizing energy demand and consumption. Common problems that prevent the use of efficient digital control technologies include:
  • Misinformation regarding the risks and benefits of the technology
  • An inadequate understanding of the energy and cost benefits associated with these strategies
  • Complete ignorance regarding the availability of such strategies.
Energy models that accurately demonstrate the operating cost benefits of these technologies can present decision makers with compelling reasons for implementing the strategies into the project design. Accordingly, this simulation guidebook highlights the following digital control strategies and sequences that may improve efficient operation of water-side systems. The guidebook also provides a guide for modeling each technology in EnergyPro, native DOE-2.1e, and eQUEST.

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