The electric, thermal and optical behaviour of an incandescent lamp was studied by a real time laboratory (RTL) apparatus, using two voltage probes and a light probe. The software STELLA was used to model the phenomena and to analyse the transient behaviour in absence of thermal equilibrium. We show how the Joule-heating effect explains the non-linear current/voltage relation and how the filament thermal capacity affects the phase lag of light peaks with respect to input power peaks.
Torzo, G., D'Anna, M., Pecori, B. (2016). Playing with a bulb lamp: RTL measurements and modelling. PHYSICS EDUCATION, 51(5), 1-11 [10.1088/0031-9120/51/5/055004].
Playing with a bulb lamp: RTL measurements and modelling
PECORI, BARBARA
2016
Abstract
The electric, thermal and optical behaviour of an incandescent lamp was studied by a real time laboratory (RTL) apparatus, using two voltage probes and a light probe. The software STELLA was used to model the phenomena and to analyse the transient behaviour in absence of thermal equilibrium. We show how the Joule-heating effect explains the non-linear current/voltage relation and how the filament thermal capacity affects the phase lag of light peaks with respect to input power peaks.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
