21-62 STUDIU PRIVIND DIMENSIONAREA EFICIENTĂ A SUPRAFEŢEI DE CAPTARE PENTRU UN SISTEM TERMO-SOLAR DE ÎNCĂLZIRE A APEI MENAJERE


STUDY ABOUT EFFICIENT SIZING OF THE TOTAL
COLLECTOR AREA FOR A DOMESTIC SOLAR WATER
HEATING SYSTEM
Sizing a solar water heating system basically involves determining the
total collector area and the storage volume. Hot water demand for a household
over a year can be considered constant. The major problem is determining the
right size for the total collector area avoiding to over and under sizing the
system. The paper analyzes a sizing possibility regarding the efficiency of the
system from an hermetic point of view. The result show the system sized to
ensure hot water demand over the summer period is the most efficient; a
system sized to ensure hot water demand over winter period is oversized and
not efficient.
Cuvinte cheie: energie solară, captator solar, sistem termo-solar,
eficienţa energetică, dimensionare
Keywords: solar, solar collector, solar thermal systems, energy
efficiency, sizing

62 STUDIU PRIVIND DIMENSIONAREA EFICIENTĂ A