Mach Number Estimation and Pressure Profile Measurements of Expanding Dense Organic Vapors

This paper describes an experiment conducted within the nozzle test section of the Organic Rankine Cycle Hybrid Integrated Device (ORCHID) aimed at providing accurate data for the validation of NICFD flow solvers [5]. A supersonic flow of the dense vapor siloxane MM established in the nozzle of the setup was characterized by means of the...

Validation of the SU2 Fluid Dynamic Solver for Isentropic Non-Ideal Compressible Flows

This work assessed the accuracy of the SU2 flow solver in predicting the isentropic expansion of Siloxane MM through the converging-diverging nozzle test section of the Organic Rankine Cycle Hybrid Integrated Device (ORCHID) [9]. The expansion is modeled using compressible Euler equations, and assuming adiabatic flow, while the fluid...

Novel Experiments for the Investigation of Non-Ideal Compressible Fluid Dynamics: The ORCHID and First Results of Optical Measurements

The vast number of pioneering theoretical developments inthe area of non-classical gas dynamics together with the rising number ofapplications of organic Rankine cycle (ORC) technology have shaped a new branchof fluid mechanics called non-ideal compressible fluid dynamics (NICFD). Thisfield of fluid mechanics is concerned...

First Experiments and Commissioning of the ORCHID Nozzle Test Section

This paper reports one of the initial NICFD experiments in the nozzle test section of the ORCHID aimed at providing accurate data for the validation of flow solvers, albeit, at this stage of the research, the focus is limited to inviscid phenomena. Notably, a series of schlieren photographs displaying Mach waves in the supersonic flow of the...

Feasibility of particle image velocimetry for low-speed unconventional vapor flows

This work assesses the feasibility of the planar PIV technique to study the characteristics of a siloxane vapor D4. Titanium dioxide (TiO2) seeding particles were used to track the motion around a rotating disk in a low speed flow. Vector fields of natural convection (NC) and a superposition of NC and rotating flow were selected as exemplary...

Design specifications and requirements of the orchid set-up: Version 1.1

Mini ORCHID test rig (poster)

Engine Health Monitoring Demonstrator based on GPA: A Gas Path Analysis GPA concept developed using the Gas turbine Simulation Program (GSP)

This report describes the work conducted by TUD for WP 4.2.7 of the ESPOSA project for the development of Gas Path Analysis (GPA) based Engine Health Monitoring (EHM) concepts for the BE1 and BE2 engine designs. Models developed with the Gas turbine Simulation Program GSP have been used for the development and for the simulation of deteriorated...

Engine simulation models for the cycles of BE1 and report on obtained performance data: Model development with the Gas turbine Simulation Program (GSP)

report describes the work conducted by TUD for WP 1.3.3 of the ESPOSA project for the development of the BE1 engine simulation model in NLR’s Gas turbine Simulation Program, GSP. Results include simulation results, validation and the GSP model project files. The model is based on simulated data from PBS Velká Bíteš, Czech Republic, (PBS). The...