ASHRAE Journal - October 2011 - 69

Humidity Electricity 1499-RP The Effect of Equipmenton StaticCenters Induced Reliability Issues of ICT in Data
September 2011 – April 2013; University of Missouri; Principal Investigator, David Pommerenke; TC 9.9, Mission Critical Facilities

In pursuing this research effort, we will coherently execute the following primary program objective which is to determine the relationship between the risk of ICTE failures from electrostatic discharges and humidification of data centers over a range of standard personnel-to-ground resistances and also determine the severity of discharges from cables under the same environmental conditions. Specifically, the research will determining the correlation between the risk of equipment failure from ESD and humidity levels (or dew point) at different levels of floor grounding and personnel grounding to provide users and designers of data centers with the information required to understand the ESD-related consequences of designs that use energy saving economizers.

fueled boilers as the demand for lower NOx emissions from those products spreads in the near future. Together, gas and oil burning boilers and furnaces are used to heat the vast majority of homes and small commercial buildings. The ultimate beneficiaries are the owners of buildings in which better heating appliances are to be installed and sustainable low emission solutions are to be provided.

1522-RP

Establishment of Design Procedures to Predict Room Airflow Requirements in Partially Mixed Room Air Distribution Systems

September 2009 – August 2011; Building Energy & Environmental Engineering, LLP Principal Investigator, .; Zheng Jiang & Qingyan Chen; TC 5.3, Room Air Distribution

1507-RP Binary Refrigerant Flame Boundary Concentrations

September 2009 – January 2012 (P); Safety Consulting Engineers; Principal Investigator, Andrew Kusmierz; TC 3.1, Refrigerants and Secondary Coolants; AHRTI $18,000 co-funder

ASHRAE and the industries they serve are faced with the need for new refrigerants to meet environmental, energy, and safety requirements. SSPC 34 will classify these working fluids for safe handling. To ensure the validity of flammability safety classifications issued by SSPC34, standard reference data is needed. Tools such as the proposed flammability property database will allow for the development of blends that are properly investigated and classified to meet demanding future needs.

1512-RP CFD Resource Decisions in Particle Transport Modeling

August 2010 – July 2012; University of Texas Austin; Principal Investigator, Atila Novoselac; TC 4.10, Indoor Environmental Modeling

Under Floor Air Distribution (UFAD) systems have been proved to provide higher ventilation effectiveness if they are properly designed and they also have the potential to conserve energy. Several methods have been developed for estimating the supply airflow requirements of UFAD systems, but all involve arbitrary assignment of certain convective heat gains to the upper region of the space and estimated return air temperatures. Therefore, it is necessary to conduct research to develop a scientific guide for designers of UFAD systems. This project will quantify the convective heat transfer into a stratified occupied space by conducting measurements and simulations for an interior zone and a perimeter zone with the UFAD system. By combining the ASHRAE 1373-RP database, this project will develop a design guide for determining the supply airflow rate and key temperatures in the system. The information resulting from this research project would be used to assist the designer in accurately estimating supply airflow requirements and predicting resultant space vertical temperature gradients. This is a natural sequence to the information and design guidance provided by the aforementioned UFAD design guide. The information would be available to all designers of UFAD systems and would standardize the supply airflow calculation procedure according to the degree of mixing maintained in the lower portion of the space.

Prediction of particle dynamics in a built environment is very important for designing and maintaining a healthy indoor environment. Processes that include dispersion around the sources, their transport through the space, as well as the distribution in the vicinity of an occupant, define the human exposure to the particles. Apart from dilution which assumes perfect mixing, relatively little research has been carried out on the transport of disease carrying particles from sources to the occupant. Therefore, there is a need for reliable and affordable modeling methods that can simulate particle dynamics in indoor environments. The objective of the proposed work is to provide the engineering and research community with critical CFD parameters suitable for particle transport modeling in a built environment where disease bearing particles can cause human exposure and health risks. in Buildings that Reduce 1515-RP Thermal and Air Quality Acceptability from Overhead Diffusers Energy by Reducing Minimum Airflow
September 2010 – July 2012; University of California – Berkeley; Principal Investigator, Edward Arens; TC 2.1, Physiology and Human Environment

1544-RP

Establishing Benchmark Levels and Patterns of Commercial Building Hot Water Use

April 1, 2010 – May 2013; Applied Energy Technology Company; Principal Investigator, Carl Hiller; TC 6.6, Service Water Heating Systems

The information available with which designers size and lay-out hot water systems in the commercial sector is antiquated and sadly in need of updating. We also need a better understanding of how people use water in commercial and institutional buildings. The objective of this project is to obtain measured hot water use in a sampling of significant building types that will enable Table 7 of the Service Water Heating chapter of the ASHRAE Handbook to be revised and updated. High time resolution monitoring of hot water use will enhance the understanding of the diversity (how many uses occur at the same time) of hot water uses by providing data on number, timing and duration of draws, rather than just aggregate water use over long (e.g., day, week, month) periods.

1547-RP

CO2-based Demand Controlled Ventilation for Multiple Zone HVAC Systems

Simulations show that reducing zone minimums in a typical office building from 30% to 20% can save $100/k·ft 2·yr in fan, cooling, and reheat energy (approximately a 10% reduction in total energy use). Multiplied across the millions of square feet of commercial space served by VAV boxes, the potential economic and environmental benefits are substantial. Savings can be achieved in new construction and in existing buildings through low cost control system re-programming. The opportunity for savings in existing buildings with minimal financial investments is a particularly exciting application for this work. Because this study will involve observations across a range of supply air volumes and temperatures, the study will have an additional benefit of providing ASHRAE with detailed information about local thermal discomfort in actual occupied buildings. This can be used to validate some of the local discomfort provisions in Standard 55, which are at present based solely on laboratory studies. The research could also have far reaching implications in terms of getting changes made to the ASHRAE Handbook, to manufacturers’ literature and to the way engineers calculate minimum flow rates. It will also support proposed changes in Standards 90.1, 62.1 and 55. Low-Order Acoustic 1517-RP Validation of aDiagnosing CombustionModel of Boilers and Its Application for Driven Oscillations
September 2010 – March 2012; Secat, Inc.; Principal Investigator, David Herrin; TC 6.10, Fuels and Combustion

September 2010 – March 2012; University of Nebraska – Lincoln; Principal Investigator, Josephine Lau; TC 4.3, Ventilation Requirements and Infiltration

ASHRAE Standard 90.1 defines demand controlled ventilation (DCV) as a system that provides “automatic reduction of outdoor air intake below design rates when the actual occupancy of spaces served by the system is less than design occupancy.” Standard 90.1 has required DCV, with some exceptions, for densely occupied spaces since the 1999 version, which also required that the DCV system be in compliance with ASHRAE Standard 62.1. The Standard 62.1 User’s Manual includes an appendix showing the underlying theory and a control scheme for using carbon dioxide (CO2) concentration for DCV in accordance with the Ventilation Rate Procedure (VRP) of ASHRAE Standard 62.1. The 2007 version of the Manual only addresses CO2 DCV for single zone systems. The 2004 version of the Manual also included an approach for multiple zone recirculation HVAC systems (MZS) but errors were found in the approach so it was removed. The authors of the Manual and the SSPC 62.1 subcommittee monitoring the Manual’s development felt that before any MZS DCV control logic could be included in the manual, research had to be done to ensure that the many complexities of the subject were properly addressed. Until questions are answered concerning MZS DCV, CO 2 DCV cannot be properly implemented in MZS with any assurance that it will be Standard 62.1 compliant and provide significantly improved energy performance. This research will ensure that it is possible to fully comply with both Standard 90.1 and Standard 62.1 with respect to multiple zone DCV systems.

During the development of higher efficiency, lower emission boilers, tonal noise can be an unacceptable problem. This is caused by oscillations of the flame which result in pressure oscillations in the combustion chamber that are radiated as noise. This occurs whenever the pressure oscillations feed back on the flame, via the mixture supply system, in such a manner that the flame oscillations increase. The interaction of the boiler, burner, and flame is so complex that breaking the circle is best accomplished with the help of a computer model. The objective of this research is to develop a procedure for quickly and efficiently modeling the acoustic behavior of gas fired heating boilers as a tool for diagnosing the cause of combustion oscillations. ASHRAE members who would benefit immediately from the proposed research are engineers engaged in the development of high efficiency, low NOx gas fired boilers for residential and small commercial applications. It is expected that the results will also benefit engineers involved in the development of gas fired furnaces and liquid

1550-RP

Thermal Performance of Insulating Coatings on Piping and Ductwork

September 2011 – June 2012; R&D Services; Principal Investigator, David Yarbrough; TC 1.8, Mechanical Systems Insulation

Thermal Insulating Coatings are sometimes used to provide thermal insulation for pipes, ducts, and tanks. These materials have been on the market for a number of years and have been defined (Hart 2006) as “a liquid or semi-liquid suitable for application to a surface in a thickness of 30 mils or less per coat, that dries or cures to form a protective finish and provide resistance to heat flow”. The ASHRAE Handbook of Fundamentals (Chapter 26) currently contains no information on these coating materials. Manufacturers of these materials, who would normally provide this information, have not done so to date. The objective of this project will be to develop thermal conductivity and surface emittance data for commercially available thermal insulating coatings. The objective

October 2011

ASHRAE Journal

69



ASHRAE Journal - October 2011

Table of Contents for the Digital Edition of ASHRAE Journal - October 2011

ASHRAE Journal - October 2011
Contents
Commentary
Industry News
Letters
Meetings and Shows
Feature Articles
High-Performance VAV Systems
HVAC Selection for Envelope- Dominated Buildings
Saving Energy by Insulating Pipe Components On Steam & Hot Water Distribution Systems
Technology Award Case Studies
Aquifer for Cooling
Dual-Fan System
Special Sections
ASHRAE Research Report
ASHRAE Honor Roll
Standing Columns
Building Sciences
Emerging Technologies
IAQ Applications
Washington Report
Special Products
People
Products
Classified Advertising
Advertisers Index
ASHRAE Journal - October 2011 - ASHRAE Journal - October 2011
ASHRAE Journal - October 2011 - Cover2
ASHRAE Journal - October 2011 - 1
ASHRAE Journal - October 2011 - 2
ASHRAE Journal - October 2011 - Contents
ASHRAE Journal - October 2011 - Commentary
ASHRAE Journal - October 2011 - 5
ASHRAE Journal - October 2011 - Industry News
ASHRAE Journal - October 2011 - 7
ASHRAE Journal - October 2011 - 8
ASHRAE Journal - October 2011 - 9
ASHRAE Journal - October 2011 - Letters
ASHRAE Journal - October 2011 - 11
ASHRAE Journal - October 2011 - 12
ASHRAE Journal - October 2011 - 13
ASHRAE Journal - October 2011 - 14
ASHRAE Journal - October 2011 - 15
ASHRAE Journal - October 2011 - Meetings and Shows
ASHRAE Journal - October 2011 - 17
ASHRAE Journal - October 2011 - High-Performance VAV Systems
ASHRAE Journal - October 2011 - 19
ASHRAE Journal - October 2011 - 20
ASHRAE Journal - October 2011 - 21
ASHRAE Journal - October 2011 - 22
ASHRAE Journal - October 2011 - 23
ASHRAE Journal - October 2011 - 24
ASHRAE Journal - October 2011 - 25
ASHRAE Journal - October 2011 - 26
ASHRAE Journal - October 2011 - 27
ASHRAE Journal - October 2011 - 28
ASHRAE Journal - October 2011 - 29
ASHRAE Journal - October 2011 - HVAC Selection for Envelope- Dominated Buildings
ASHRAE Journal - October 2011 - 31
ASHRAE Journal - October 2011 - 32
ASHRAE Journal - October 2011 - 33
ASHRAE Journal - October 2011 - 34
ASHRAE Journal - October 2011 - 35
ASHRAE Journal - October 2011 - 36
ASHRAE Journal - October 2011 - 37
ASHRAE Journal - October 2011 - 38
ASHRAE Journal - October 2011 - 39
ASHRAE Journal - October 2011 - 40
ASHRAE Journal - October 2011 - 41
ASHRAE Journal - October 2011 - Saving Energy by Insulating Pipe Components On Steam & Hot Water Distribution Systems
ASHRAE Journal - October 2011 - 43
ASHRAE Journal - October 2011 - 44
ASHRAE Journal - October 2011 - 45
ASHRAE Journal - October 2011 - 46
ASHRAE Journal - October 2011 - 47
ASHRAE Journal - October 2011 - 48
ASHRAE Journal - October 2011 - 49
ASHRAE Journal - October 2011 - Aquifer for Cooling
ASHRAE Journal - October 2011 - 51
ASHRAE Journal - October 2011 - 52
ASHRAE Journal - October 2011 - 53
ASHRAE Journal - October 2011 - Dual-Fan System
ASHRAE Journal - October 2011 - 55
ASHRAE Journal - October 2011 - 56
ASHRAE Journal - October 2011 - 57
ASHRAE Journal - October 2011 - 58
ASHRAE Journal - October 2011 - 59
ASHRAE Journal - October 2011 - ASHRAE Research Report
ASHRAE Journal - October 2011 - 61
ASHRAE Journal - October 2011 - 62
ASHRAE Journal - October 2011 - 63
ASHRAE Journal - October 2011 - 64
ASHRAE Journal - October 2011 - 65
ASHRAE Journal - October 2011 - 66
ASHRAE Journal - October 2011 - 67
ASHRAE Journal - October 2011 - 68
ASHRAE Journal - October 2011 - 69
ASHRAE Journal - October 2011 - 70
ASHRAE Journal - October 2011 - 71
ASHRAE Journal - October 2011 - 72
ASHRAE Journal - October 2011 - ASHRAE Honor Roll
ASHRAE Journal - October 2011 - HR2
ASHRAE Journal - October 2011 - HR3
ASHRAE Journal - October 2011 - HR4
ASHRAE Journal - October 2011 - HR5
ASHRAE Journal - October 2011 - HR6
ASHRAE Journal - October 2011 - HR7
ASHRAE Journal - October 2011 - HR8
ASHRAE Journal - October 2011 - HR9
ASHRAE Journal - October 2011 - HR10
ASHRAE Journal - October 2011 - HR11
ASHRAE Journal - October 2011 - HR12
ASHRAE Journal - October 2011 - HR13
ASHRAE Journal - October 2011 - HR14
ASHRAE Journal - October 2011 - HR15
ASHRAE Journal - October 2011 - HR16
ASHRAE Journal - October 2011 - HR17
ASHRAE Journal - October 2011 - HR18
ASHRAE Journal - October 2011 - HR19
ASHRAE Journal - October 2011 - HR20
ASHRAE Journal - October 2011 - HR21
ASHRAE Journal - October 2011 - HR22
ASHRAE Journal - October 2011 - HR23
ASHRAE Journal - October 2011 - HR24
ASHRAE Journal - October 2011 - HR25
ASHRAE Journal - October 2011 - HR26
ASHRAE Journal - October 2011 - HR27
ASHRAE Journal - October 2011 - HR28
ASHRAE Journal - October 2011 - HR29
ASHRAE Journal - October 2011 - HR30
ASHRAE Journal - October 2011 - HR31
ASHRAE Journal - October 2011 - HR32
ASHRAE Journal - October 2011 - 73
ASHRAE Journal - October 2011 - Building Sciences
ASHRAE Journal - October 2011 - 75
ASHRAE Journal - October 2011 - 76
ASHRAE Journal - October 2011 - 77
ASHRAE Journal - October 2011 - 78
ASHRAE Journal - October 2011 - 79
ASHRAE Journal - October 2011 - 80
ASHRAE Journal - October 2011 - 81
ASHRAE Journal - October 2011 - 82
ASHRAE Journal - October 2011 - 83
ASHRAE Journal - October 2011 - Emerging Technologies
ASHRAE Journal - October 2011 - 85
ASHRAE Journal - October 2011 - 86
ASHRAE Journal - October 2011 - 87
ASHRAE Journal - October 2011 - 88
ASHRAE Journal - October 2011 - 89
ASHRAE Journal - October 2011 - IAQ Applications
ASHRAE Journal - October 2011 - 91
ASHRAE Journal - October 2011 - 92
ASHRAE Journal - October 2011 - 93
ASHRAE Journal - October 2011 - Washington Report
ASHRAE Journal - October 2011 - Special Products
ASHRAE Journal - October 2011 - People
ASHRAE Journal - October 2011 - 97
ASHRAE Journal - October 2011 - Products
ASHRAE Journal - October 2011 - 99
ASHRAE Journal - October 2011 - 100
ASHRAE Journal - October 2011 - 101
ASHRAE Journal - October 2011 - Classified Advertising
ASHRAE Journal - October 2011 - 103
ASHRAE Journal - October 2011 - Advertisers Index
ASHRAE Journal - October 2011 - Cover3
ASHRAE Journal - October 2011 - Cover4
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