Solar heating — Domestic water heating systems — Part 4: System performance characterization by means of component tests and computer simulation
NORMA vydána dne 4.2.2013
Označení normy: ISO 9459-4:2013
Datum vydání normy: 4.2.2013
Počet stran: 70
Přibližná hmotnost: 210 g (0.46 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO
Description / Abstract: ISO 9459-4:2013 specifies a method of evaluating the annual energy performance of solar water heaters using a combination of test results for component performance and a mathematical model to determine an annual load cycle task performance under specified weather and load conditions. The procedure is applicable to solar water heaters with integral backup or preheating into a conventional storage or instantaneous water heater and to integral collector storage water heaters. System operating requirements specified in ISO 9459-4:2013 are for the purpose of determining an annual performance rating for domestic water heaters. There are no product design or operation requirements in ISO 9459-4:2013.