Causality in Models of Thermal Processes in Ship Engine Rooms with the Use of Bond Graph (BG) Method

Abstract

With a single approach to modeling elements of different physical nature, the method of Bond Graph (BG) is

A Theoretical and Experimental Study of Moderate Temperature Alfa Type Stirling Engines

“…For a more realistic analysis it is convenient to define the temperature of the gas delivering heat to the Stirling engine (the waste energy) and the temperature of water receiving heat from the device instead of the temperature of working gas in the heater and the cooler, respectively [35,36]. Hence, assuming the energy is transferred with 100% efficiency through the heat exchanger, we can define the average rate of heat delivered to the working gas in the heater: (27) and the average rate of heat received from the working gas in the cooler:…”

Archives of Thermodynamics

“…Mathematical models of the thermal system in which combustion engine (CE) is the source of heat are described in literature [7]. Specialist centers producing simulation software run numerous works in this area.…”

“…For a more synthetic presentation of the models, the binding graphs method was adopted as the most suitable for modeling energy systems with complex physical nature. This method has been developed for many years at the Chair of Combustion Engines and Compressors of the Faculty of Mechanical Engineeringat the Gdansk University of Technology in the group of prof. Marian Cichy [7].…”

“…engine block), ṠC is the rate of entropy flow for this accumulator, and N C is the number of graphs in the node containing the C-graph. The C-graph is the graph connected with the capacity element [7]. The left part of Eq.…”