Institutional | Publications | DELTA

Publications Institutional You need to have Adobe Acrobat Reader installed to view the DELTA Portfolios and Snapshots. You can download the free installer for Adobe Acrobat Reader from the Adobe's web site by clicking here. All printed publications are also available for purchase from the LRC's Online Store.
DELTA Portfolio
	DELTA Portfolio: Ballston Spa High School DELTA examined lighting systems for three types of spaces in this new high school: the cafeteria, the library, and the art rooms. Lighting objectives included providing good task visibility and visual comfort, minimizing energy use, and providing flexibility and visual interest in the lighting. This project demonstrates that indirect lighting promotes visual comfort, designers should take into account the presence of obstructions when planning the layout of luminaires, lighting controls must be easily accessible to authorized personnel, and luminaires should be designed to resist abuse.
	DELTA Portfolio: Hudson Valley Community College Hudson Valley Community College in Troy, New York, is creating new learning environments that integrate computers into the classroom. This DELTA publication evaluates a lighting scheme for computer classrooms having two different arrangements of computers: terminals arranged in rows across the room and terminals arranged around the perimeter of the room. Design objectives included making light levels flexible while minimizing cost, energy use, and unwanted reflections on computer screens.
	DELTA Portfolio: Mary McLeod Bethune Elementary School This school's lighting contributes to its light, airy atmosphere. Energy-efficient products and automatic switching keep energy costs down while integrated windows and skylights give students and teachers a connection to the outdoors. In the gymnasium, uplight fixtures use a combination of metal halide and high-pressure sodium lamps.
	DELTA Portfolio: Saratoga Medical Associates For this project, DELTA evaluated the existing lighting in five spaces in a suite of medical offices: the reception and waiting area, one nurses' station, two examination rooms, and one doctor's office. DELTA then installed and evaluated new lighting in those same spaces. This publication details the new lighting and provides the results of the two evaluations. Features of the new lighting system include flexibility, visibility, and visual comfort and appeal; elimination of the need for supplementary lighting; and use of energy-efficient technologies.
DELTA Snapshots
	DELTA Snapshots: Compact Fluorescent Retrofit for Incandescent Downlights, Issue 3 Compact fluorescent lamp (CFL) retrofit kits can replace incandescent downlights, providing significant savings in reduced energy use and relamping frequency. This Snapshot details the relighting of a public library's circulation desk with a new 20-W CFL retrofit kit that gives the staff the illuminance they need without distracting glare. Another benefit of the new system is that it does not produce excessive heat on the circulation desk as the old incandescents did.
	DELTA Snapshots: Mohonasen High School, Multimedia Auditorium This publication evaluates two basic lighting strategies for multimedia auditoriums, which support many activities in schools and other venues. The project also demonstrates how these basic strategies might need to be modified to meet a number of lighting objectives: rendering speakers' facial features in a flattering manner, making the space look pleasant, providing illumination for audience members to read and take notes and for speakers to see their audiences, and minimizing illuminance and reflections on projection screens and monitors.
Field Test DELTA Snapshots
	Field Test DELTA Snapshot: Classroom Lighting This publication summarizes field research from the demonstration of an integrated classroom lighting system installed in seven schools in New York State. The system addresses the lighting needs of both traditional instructional technology (chalkboards) and new audio-visual presentation technology. The publication includes teacher surveys and energy calculations.
Field Test DELTA
	Field Test DELTA: Daylight-Harvesting Switch The DaySwitch® is a simple daylight-harvesting switch designed to turn off electric lights when plentiful daylight is available. The LRC developed the DaySwitch, collaborated with manufacturing partners to build prototypes, and demonstrated the device in a wide range of locations throughout the Rensselaer campus. This publication summarizes the product features and demonstration results.