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- Ian H. Bell, Jorrit Wronski, Sylvain Quoilin, Vincent Lemort
- Industrial & engineering chemistry research
- 2014

Over the last few decades, researchers have developed a number of empirical and theoretical models for the correlation and prediction of the thermophysical properties of pure fluids and mixtures treated as pseudo-pure fluids. In this paper, a survey of all the state-of-the-art formulations of thermophysical properties is presented. The most-accurateâ€¦ (More)

- Sylvain Quoilin, Richard Aumann, Andreas Grill, Andreas Schuster, Vincent Lemort, Hartmut Spliethoff
- 2011

Organic Rankine Cycles (ORCs) are particularly suitable for recovering energy from low-grade heat sources. This paper describes the behavior of a small-scale ORC used to recover energy from a variable flow rate and temperature waste heat source. A traditional static model is unable to predict transient behavior in a cycle with a varying thermal source,â€¦ (More)

- Vincent Lemort, S Declaye, Sylvain Quoilin
- 2011

This paper presents the results of an experimental study carried out on a prototype of a hermetic scroll expander, integrated into a gas cycle test rig, whose working fluid is HFC-245fa. This system is designed to test only the performance of the expander. It is made up mainly of a scroll compressor, a scroll expander, a heat exchanger, and a by-pass valve.â€¦ (More)

- Adriano Desideri, Bertrand Dechesne, +4 authors Sylvain Quoilin
- 2016

When modeling low capacity energy systems, such as a small size (5â€“150 kWel) organic Rankine cycle unit, the governing dynamics are mainly concentrated in the heat exchangers. As a consequence, the accuracy and simulation speed of the higher level system model mainly depend on the heat exchanger model formulation. In particular, the modeling of thermo-flowâ€¦ (More)

- Ian H. Bell, Vincent Lemort, +7 authors William Horton
- 2013

A detailed mechanistic model has been developed for scroll compressors and scroll expanders with liquid flooding for application to the Liquid Flooded Ericsson Cycle. This model is based on the integration of a set of differential equations that arise from the conservation laws. The impact of the flooding liquid on the working process is also includedâ€¦ (More)

This paper presents the results of an experimental analysis of the radiant ceiling systems in both heating and cooling modes coupled to its environment (fenestration, walls, internal loads and ventilation system). The main objective of this study is to present the results of the systems performance and measurement methods used to evaluate the influence ofâ€¦ (More)

This paper presents the results of an on-going project to develop ThermoCycle, an open Modelica library for the simulation of low-capacity thermodynamic cycles and thermal systems. Special attention is paid to robustness and simulation speed since dynamic simulations are often limited by numerical constraints and failures, either during initialization orâ€¦ (More)

- Adriano Desideri, M. M. P. van den Broek, +7 authors Sylvain Quoilin
- 2015

This paper presents an experimental characterization of an 11 kWe single screw expander modified from a standard compressor and integrated into an organic Rankine cycle (ORC) test facility using Solkatherm as working fluid. A total of 62 steady-state points are collected over a wide range of operating conditions to evaluate the expander and the systemâ€¦ (More)

- Ian H. Bell, Vincent Lemort, +5 authors Eckhard A. Groll
- 2014

The Liquid Flooded Ericsson Cooler (LFEC) is a gas refrigeration cycle that uses liquid flooding of both the compressor and the expander to achieve nearly isothermal compression and expansion processes as developed by Hugenroth et al. (2007). Efficiency of the LFEC strongly depends on the efficiencies of the compressor and the expander. It is hoped that theâ€¦ (More)

- Vincent Lemort, Ian H. Bell, +5 authors J. E. Braun
- 2014

This paper presents the development and the experimental validation of a model of a scroll expander integrated into a Liquid Flooded Ericsson Cooler (LFEC) as proposed by Hugenroth (2007). This system uses liquid flooding of the compressor and the expander to approach isothermal compression and expansion processes. A detailed model of the flooded scrollâ€¦ (More)