A ceramic combustor and a build-in air-to-air heat exchanger have been designed. The ceramic combustor heats a selective photo – emitter that provides the electromagnetic radiation for a thermo – photovoltaic system (TPV) based on multi – quantum – well high efficiency cells. The operative temperature for the selective emitter, uniformly disposed on the outside walls of the combustor, is 1500 K, whereas the working temperature for the photo-voltaic cells is 333 K. The combustion system supplies thermal power to the TPV cells. To increase the efficiency of the combustion system in the design was included a ceramic air-to-air heat exchanger which is able to preheat the combusting air up to 1000 K. The fluid dynamic and the structural behaviour of the system has been studied. The combustion system was studied to burn commercial gas oil and the combustion chamber operating pressure was decided to be ambient pressure. Both these specifications were recommended by car manufacturers for safety reasons.
CFD Investigation of a Combustor with a Built-in Heat Exchanger for TPV Range Extender for Automotive Applications
COLANGELO, Gianpiero;DE RISI, Arturo;LAFORGIA, Domenico
2000-01-01
Abstract
A ceramic combustor and a build-in air-to-air heat exchanger have been designed. The ceramic combustor heats a selective photo – emitter that provides the electromagnetic radiation for a thermo – photovoltaic system (TPV) based on multi – quantum – well high efficiency cells. The operative temperature for the selective emitter, uniformly disposed on the outside walls of the combustor, is 1500 K, whereas the working temperature for the photo-voltaic cells is 333 K. The combustion system supplies thermal power to the TPV cells. To increase the efficiency of the combustion system in the design was included a ceramic air-to-air heat exchanger which is able to preheat the combusting air up to 1000 K. The fluid dynamic and the structural behaviour of the system has been studied. The combustion system was studied to burn commercial gas oil and the combustion chamber operating pressure was decided to be ambient pressure. Both these specifications were recommended by car manufacturers for safety reasons.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
