This paper deals with two-phase thermosyphons used in glazed flat plate solar collectors. It analyses the performance of thermosyphons solar collectors by means of a steady-state mathematical model based on the lumped capacitance method. The model simulates the thermal behaviour of a single tube and of the whole collector at various operating conditions. The present mathematical model has been validated experimentally using data taken on a copper thermosyphon. A test section has been set up, which is made of a single ended copper thermosyphon, where the input power at the evaporator is supplied by an electrical heater. The validated model is finally applied to an analysis of two-phase thermosyphons solar collectors with variable configuration.
COMPARATIVE ANALYSIS OF TWO-PHASE THERMOSYPHONS SOLAR COLLECTORS
FILIPPESCHI, SAURO;
2012-01-01
Abstract
This paper deals with two-phase thermosyphons used in glazed flat plate solar collectors. It analyses the performance of thermosyphons solar collectors by means of a steady-state mathematical model based on the lumped capacitance method. The model simulates the thermal behaviour of a single tube and of the whole collector at various operating conditions. The present mathematical model has been validated experimentally using data taken on a copper thermosyphon. A test section has been set up, which is made of a single ended copper thermosyphon, where the input power at the evaporator is supplied by an electrical heater. The validated model is finally applied to an analysis of two-phase thermosyphons solar collectors with variable configuration.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
