English

This paper summarizes a laboratory investigation into the effects that range top diversity, range accessories (including shelving and a salamander) and hood dimensions (including hood height and depth and reservoir volume) have on hood performance with respect to the minimum exhaust rate required for complete capture and containment of cooking effluent. The appliances used for the study include a six-burner gas range, a gas salamander, an underfired gas broiler, a twovat

This paper summarizes the primary results from ASHRAE Research Project RP-1202, a laboratory investigation into the effects that appliance diversity and position have on exhaust hood performance. The objective was to quantify the impact that appliance position and diversity, side panels and front overhang had on the minimum exhaust rate required to provide capture and containment. The appliances included a gas broiler in the heavy-duty category, a two-vat gas fryer in the medium-duty category and an electric full-size convection oven in the light-duty category.

In line with the mission of the National Park Service, the Zion National Park Visitor Center was designed to use 70% less energy than a comparable visitor center built to Federal Energy Code 10 CFR 435 (DOE 1995). The authors and NPS staff used an integrated design process, including extensive simulations, to minimize the energy consumption. The result was a passive solar commercial building that has a good thermal envelope, daylighting and natural ventilation. Passive

Two high-performance prototype houses were built in Carbondale, Colorado, as part of the US Department of Energy’s Building America (BA) Program. Each prototype was a 1256 ft2 (117 m2), one-story, three-bedroom house and met the local requirements for aff

This paper presents an extension of a standard two-equation turbulence model that can improve considerably the precision of the numerical simulation of a displacement ventilation system.

The evaluation of the performance of existing natural ventilation systems in Lithuania was the objective of this research along with the performance of a CFD analysis to find possible ways to improve them.

The aim of that study was to investigate the energy consumption at different gradients in a field environment chamber in Singapore. The results of the experiment are presented along with the authors ' main conclusions.

For that IAQ evaluation in a 75 storeys office building, the authors used three indicators (CO2, TVOC, PM10) to assist the building engineering management in the identification of possible improvement measures in indoor air quality control

Under contract with the ASHRAE, RTI conducted an interlaboratory study (ILS) ofANSI/ASHRAE Standard 52.2-1999. Seven American and one European laboratories participated.The purpose of the ILS was to determine if the system qualification tests are adequate to providereliable test results. Testing was performed in two rounds :Round 1 was a trial run during which each lab ran an initial efficiency test (no dust loading) on two medium efficiency filters.Round 2 consisted of six full 52.2 tests : two tests each of low (MERV 5-8), medium(MERV 9-12) and high efficiency (MERV 13-16) filters.

The performance of a particulate air filter is mostly based on the filtration efficiency obtained by weight method (for CPA filter) or dust spot method (for MEPA filter). The primary goal of this study was to obtain the filtration efficiency over airborne microbes of a CPA filter or MEPA filter which are normally installed in Japanese office buildings. In-situ tests were carried out on three air-handling units and one package air-conditioner located in Tokyo.