Investigation of the Dynamics of an Overloaded Heating System

Autor: W. Kreische, R. Kapp, H.-R. Blank, M. Ismaier, J. Heindl, B. Zapf, S. Poscher, M. Kaltenhäuser, M. Frank, U. Lossen, R. Sporer, M. Geiger
Rok vydání: 1994
Předmět:
Zdroj: Nonlinear Coherent Structures in Physics and Biology ISBN: 9781489913456
DOI: 10.1007/978-1-4899-1343-2_61
Popis: The dynamical alteration between liquid phase and vapor phase was studied in a boiler system shown schematically in figure 1. The setup consists of a transport system for a liquid, which is heated up electrically at one end and cooled down by a heat exchanger at the other end. Within the heating region the liquid is vaporized and the arising vapor compresses the gas buffer behind the remaining liquid. As the expanding vapor reaches the cooling region of the heat exchanger the vapor condenses, the liquid streams back into the heating region and is vaporized again. The fluctuations of the liquid level are measured recording the changes of the pressure in the gas buffer behind the liquid via a pressure gauge. For data analysis the signal of the pressure gauge is transfered by an A/D converter to the computer. The heating power is used as control parameter and was varied from 8 to 50 Watt. All other quantities i. e. temperature of the cooling reservoir, distance between heating and cooling region, amount of the enclosed liquid and the geometry of the transport system remain constant.
Databáze: OpenAIRE