Recently added articles from ASHRAE Transactions:
State of the society: state of the society address.(American Society of Heating, Refrigerating and Air-Conditioning Engineers)
Jan 01, 2009; Harrison, William A. ... Any time I stand before a room full of ASHRAE heroes, I am overwhelmed by the commitment that you exhibit. Let me say a very sincere "thank you"--whether your commitment is demonstrated by the time you devote to committee service or by the financial support you provide as a Golden Circle ...
Technical program: 2009 ASHRAE Winter conference Chicago, Illinois.(American Society of Heating, Refrigerating and Air-Conditioning Engineers)(List)
Jan 01, 2009 ... Sunday January 25, 2009 8:00 a.m.-9:30 a.m. Transactions Session 1 (Advanced) Innovative Building Ventilation Towards Sustainable Building Design Track: Sustainability Room: Salons 8/9 (3) Sponsor: 4.3 Ventilation ...
Hybrid ventilation control design and management.(Report)
Jan 01, 2009; Mankibi, M. El ... INTRODUCTION Background Nowadays, there is a growing interest in taking ventilation systems into account at the early design stage of a building. Designers are interested in ventilation features as well as in indoor air quality, thermal comfort and energy consumption ...
A reference environment for the calculation of the exergy value of air in buildings.(Report)
Jan 01, 2009; Sakulpipatsin, P. ... INTRODUCTION Exergy analysis has the potential to optimize building energy demand, since exergy consumption can, to a certain extent, be minimized. As an initial step of exergy application for building design, a reference environment of buildings needs to be properly defined. ...
Occupant behavior in naturally ventilated and hybrid buildings.(Report)
Jan 01, 2009; Tuohy, Paul G ... INTRODUCTION The experience of a building can have a large impact on an individual's productivity and their feeling of well-being. The behavior of occupants can have a large effect on energy use. To be successful, a building should satisfy the reasonable requirements of its ...
Pressure loss of corrugated spiral duct.(Report)
Jan 01, 2009; Kulkarni, D. ... INTRODUCTION Corrugated spiral ducts typically are used underground because the corrugations increase the limits of imposed load applied by backfill. Recently they have also been used for above ground HVAC systems, due to their reduced shipping and storage costs. Corrugated ...
Measurements of flat oval elbow loss coefficients.(Report)
Jan 01, 2009; Kulkarni, D. ... INTRODUCTION This paper presents results of an experimental program to determine loss coefficients for several flat oval elbows, i.e., 90[degrees] easy bend elbows, mitered 90[degrees] easy bend elbows with and without vanes, and mitered 90[degrees] hard bend elbows with and ...
Influence of aspect ratio and hydraulic diameter on flat oval elbow loss coefficients.(Report)
Jan 01, 2009; Kulkarni, D. ... INTRODUCTION ASHRAE Research Project RP-1319 was undertaken to test flat oval elbows to determine their total pressure loss coefficients, and update the ASHRAE Duct Fitting Database (ASHRAE 2006). A complete description of the test program and its results are provided in Idem et ...
Particulate and gaseous contamination: effect on computer reliability and monitoring.(Report)
Jan 01, 2009; Singh, Prabjit ... INTRODUCTION It is known that particulate and gaseous contamination in data centers can degrade computer reliability. Dust settled on printed circuit boards can lead to electrical shorting of closely spaced features with a voltage drop across them and it can corrode the circuit ...
Air management metrics in data centers.(Report)
Jan 01, 2009; Tozer, Robert ... INTRODUCTION The latest publications by ASHRAE (2005 and 2006) provide extensive guidance on the following: * Liquid cooling of computer equipment: dielectric fluids, water and refrigerants * Air distribution in equipment, cabinets and data center (hot ...
Dehumidification of outdoor air in datacom environments for air-side economizer operation.(Report)
Jan 01, 2009; Davidson, Thomas A ... DISCUSSION Datacom facilities have the potential to save significant quantities of energy by using air-side economizers. One of the main reasons for this is that the supply air condition of a datacom facility can be significantly higher than that in an office facility. Assume an ...
Experimental investigation of the flow of R-134a through adiabatic and diabatic capillary tubes.(Report)
Jan 01, 2009; Khan, Mohd. Kaleem ... INTRODUCTION The capillary tube is a commonly used expansion device in low-capacity vapor-compression refrigeration systems (e.g., household refrigerators, window-type air conditioners). Capillary tubes can be classified into two groups on the basis of flow conditions--adiabatic ...
Performance prediction of adiabatic capillary tubes by conventional and ANN approaches: a comparison.(artificial neural networks)(Report)
Jan 01, 2009; Khan, Mohd. Kaleem ... INTRODUCTION The capillary tubes are the expansion devices used for expanding refrigerant from the condenser to the evaporator of a vapor compression system. Low cost, no maintenance requirement, and the ability to start the motor at low torque makes capillary tubes favored for ...
Chillin' at the symposium with Plato: refrigeration in the ancient world.(Report)
Jan 01, 2009; Love, Richard ... INTRODUCTION During the nineteenth century several methods of producing cold were developed and used for industrial purposes and have since become common. The three main methods were machines that operated by: compressing and evaporating refrigerants, pioneered by Perkins ...
Lessons learned from the cold storage fire at the Chicago world's fair of 1893.(Report)
Jan 01, 2009; Pearson, Andy ... INTRODUCTION Background to the World's Fair The World's Columbian Exposition of 1893, held in Jackson Park, Chicago, was the greatest show of its type the world had ever seen. Chicago won the right to host the fair in competition with St. Louis, New York, and ...
Was Ice making John Gorrie's greatest legacy?(Report)
Jan 01, 2009; Nagengast, Bernard A. ... INTRODUCTION In the 153 years since the death of John Gorrie, (Figure 1) much has been written about this refrigeration pioneer. He is famous as the first documented American to construct a mechanical refrigeration machine for making ice. But he was also the first American to ...
A detailed model to determine the effective solar optical properties of draperies.(Report)
Jan 01, 2009; Kotey, Nathan A. ... INTRODUCTION Draperies provide privacy, reduce glare, and improve aesthetics. Draperies can also be used to reduce solar gain, peak cooling load, and annual energy consumption. The energy performance for windows with shading devices can be modeled using a two-step procedure. In ...
Determining off-normal solar optical properties of roller blinds.(Report)
Jan 01, 2009; Kotey, Nathan A. ... INTRODUCTION The capability of window shading devices--roller blinds in particular--to reduce solar heat gain through windows has been an important research topic for many years. The ability to accurately quantify the reduction in cooling load that these devices deliver would ...
Determining off-normal solar optical properties of insect screens.(Report)
Jan 01, 2009; Kotey, Nathan A. ... INTRODUCTION Building energy consumption constitutes approximately 40% of the total energy used in the US (DOE 2004). It has also been estimated that about 25 billion dollars per year is tied to the thermal performance of windows (DOE 2004). Due to rising costs of conventional ...
Use of air-handling equipment to manage smoke movement during a high-rise fire.(COSMO computer program)(Report)
Jan 01, 2009; Black, W.Z. ... INTRODUCTION Fires in high-rise buildings create unique challenges for the design of fire safety systems. In the event of a fire in a high-rise structure, the heated buoyant gases produced by the fire will naturally rise and migrate to upper floors through any internal opening ...
