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Modelling and Simulation of the Freezing Systems and Heat Pumps Using Unisim® Design

Authors: C. Patrascioiu


The paper describes the modeling and simulation of the heat pumps domain processes. The main objective of the study is the use of the heat pump in propene–propane distillation processes. The modeling and simulation instrument is the Unisim® Design simulator. The paper is structured in three parts: An overview of the compressing gases, the modeling and simulation of the freezing systems, and the modeling and simulation of the heat pumps. For each of these systems, there are presented the Unisim® Design simulation diagrams, the input–output system structure and the numerical results. Future studies will consider modeling and simulation of the propene–propane distillation process with heat pump.

Keywords: Simulation, Distillation, Heat pump, unisim design

Digital Object Identifier (DOI):

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[1] W. F. Stoecker, Industrial Refrigeration Handbook, McGraw-Hill: New York, 1998.
[2] M. Bălan, Instalaţii frigorifice – teorie şi programe pentru instruire, (Accessed date 08.15.2015)
[3] United States Patent, 4,753,667, Jun. 28, 1988.
[4] N. Uddin, J. T. Gravdahl, A compressor surge control system: combination active surge control system and surge avoidance system, ISUAAAT Scientific Committee with JSASS Publication, 2012.
[5] R. Taboada, C. I. Ferreira, Compression Resorption Cycles in Distillation Columns, International Refrigeration and Air Conditioning Conference, 2008, (Accessed date 08.15.2015)
[6] N. Paraschiv, A. Băieşu, G. Stamatescu, Using an Advanced Control Technique for Controlling a Distillation Column, IEEE International Conference on Control and Automation, 2009.
[7] C. Patrascioiu, M Popescu, Sisteme de conducere a proceselor chimice - Aplicatii, MatrixRom, Bucuresti, 2013.
[8] C. Patrascioiu, M. Popescu, and N. Paraschiv, Specific Problems of Using Unisim Design® in the Dynamic Simulation of the Propylene-Propane Distillation Column, Revista de Chimie, Vol. 65, No. 9, pp. 1086-1091, 2014.
[9] G. Bucur, A. Moise, C. Popescu, Simulation of gas dehydratation plants safe operation in chemical industry, Revista de chimie, vol. 66, no. 11, 2015.
[10] C. Patrascioiu, Cao M. Anh, M. Popescu, Control of Propylene – Propane Distillation Process using Unisim® Design, Proc. of 19th International Conference on System Theory, Control and Computing, October 14-16, Cheile Gradistei, Romania, p 747-752.
[11] D. F. Sneider, Heat Integration Complications Heat Pump Troubleshoting, Don Sneider, 2001.
[12] Honeywell, Process Modelling Using Unisim Design Training, Student Course 4526, 2009.