Ingineria Iluminatului - Journal of Lighting Engineering - Prof. Florin ...

light sources, the NC-IIIC space is superior to other
colour spaces. The final conclusion of the paper is
that new colour space NC-IIIC is appropriate for the
consistent evaluation of perceived colour
appearances and colour shifts under any test
illuminant.
Ratz and Yaneva present a MAT LAB model
for the simulation of both static and dynamic
characteristics of Sodium High Intensity Discharge
lamp. The proposed model is helpful for a
preliminary design of electronic ballasts.
Experimental results on Sodium - HID lamps at
different conditions are presented and they appear to
be in good agreement with the simulation results up
to 1000 Hz.
Katerina TSIKALOUDAKI analyses the
relationship between solar shading and daylighting.
The applicability of several types of conventional sun
shading devices in the Mediterranean climate is studied,
with respect to their potentiality to act both as sun
protection and daylight elements. The study is focused
on the analysis of visual and thermal conditions, which
prevail on the models of a parametric study. The
analysis included both thermal and daylight aspects and
was conducted by means of simulating programs -
ADELINE for daylight estimations, and Thermal
conditions were simulated with SUNCODE for thermal
conditions. The author concludes that the investigation
of the optimal shading device seen from both
daylighting and thermal behaviour aspects has so far
shown conflicting results. Therefore, the integration of
efficient shading devices necessitates a prior decision
upon the hierarchy of the objectives of the design;
perhaps the solutions given for the achievement of
optimal visual conditions, thermal environment or the
environmental performance may vary.
Szabó, Zágoni and Oltean synthetisize the
various activities involved in the process of
investment implementation of lighting technology,
from solution study to final reception. The design
aspects of historical building lighting for the units
included in the investment programme are
exemplified with the execution in situ of the three
projects that compose the III MILLENNIUM
programme: the Commercial Center, Baia Mare,
Romania.
Şuvăgău continues his very interesting and
exhaustive column The Lighting in The New World
with the presentation of the guidelines of the new
4
INGINERIA ILUMINATULUI 15-2005
ASHRAE/IESNA standard 90.1-1999. The
standard clarifies requirements and provides
simplified compliance paths. More importantly,
the 1999 edition expands the code’s scope to
new and existing buildings and systems. The
standard specifies limits on the total wattage
used for lighting throughout a building by
establishing a total LPA (lighting power
allowance). The ILPA (Interior LPA) is
calculated as the product between the
building/specific area square footage and the
LPD (Lighting Power Density - total lighting
W/ft 2 specified for that building type). The
standard also specifies limits on the total wattage
used for exterior building entrance and exit
lighting by establishing a total exterior lighting
power budget. This is determined by totalling
the lighting power allowed for all exits,
entrances, and canopied areas of entrances. This
budget can he used at the lighting designer
discretion. The presentation concludes that the
ASHRAE/ IESNA energy code offers only
minimum energy standards. Consequently,
property owners and their design professionals
are urged to exceed these minimums to create
more productive, profitable and comfortable
environments.
The ENERLIN EIE SAVE program,
coordinated by Professor ZISSIS proposes to
develop and validate robust scenarios for CFL
promotional campaigns in European, national
and regional levels. The residential lighting
market is still dominated by inefficient
incandescence lamps (GLS). Market research
has indicated that to achieve durable market
transformation and to substantially increase the
use of Compact Fluorescent Lamps (CFLs) in
the residential sector, it is essential to develop
and market attractive and goods quality CFLs.
14 partners from 14 countries constitute the
ENERLIN consortium, covering a large part of
the Europe form North to South and from East
to West. The ultimate objective of this program
is to substantially increase the efficiency of
residential lighting in a number of Member
States and Candidate Countries, and offering
them good arguments necessary to overcome the
above-cited barrier can do this.