The energy efficiency monitoring of a refrigeration unit

• Autorzy: Jaszczak S. , Łokietek T.
• Języki publikacji: EN

Abstrakty

EN

In the paper, a monitoring system of a refrigeration unit is presented. This system consists of several measurement elements e.g. (pressure, temperature, energy, etc. sensors) connected using a serial RS485 network. A measurement level is a source of data for both SCADA environment and a PLC controller which are essential elements of the whole control system. The first stage of the study was related to the selection of measurement devices and a construction of a serial network. The authors also described how to link a serial 485 network with a PLC controller and how to introduce it into TCP/IP network. In the first part of the paper, there is presented a refrigeration unit as a subject of the monitoring. Then the authors describe a theoretical background needed for the energy efficiency calculation. After that the system structure with selected details about hardware integration and SCADA software implementation is presented. The final part contains selected real time experiments to show typical working modes of the refrigeration unit and to prove the efficiency of the developed monitoring system.

Słowa kluczowe

EN

refrigeration unit; SCADA system; energy efficiency

• Wydawca: Wydawnictwo PAK
• Czasopismo: Measurement Automation Monitoring
• Rocznik: 2016
• Tom: Vol. 62, No. 6
• Strony: 202--205
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr., wzory

Twórcy

autor

Jaszczak S.

• Westpomeranian University of Technology in Szczecin, Department of Computer Science, 49 Żołnierska St., PL-71210 Szczecin, Poland

autor

Łokietek T.

• Westpomeranian University of Technology in Szczecin, Department of Maritime Technology and Transport, 49 Piastów Ave., PL-71065 Szczecin, Poland

Bibliografia

• [1] Bejan A., Vargas J. V. C., Lim J. S.: When to defrost a refrigerator, and when to remove the scale from the heat exchanger of a power plant. International Journal of Heat and Mass Transfer, vol. 37, 1994, nr. 3, s. 523-532.
• [2] Jaszczak S., Małecki K., Sokołowski R.: Wykorzystanie OPC i Modbus w zarządzaniu siecią sterowników PLC. Pomiary Automatyka Kontrola, 2012, nr 07, s. 602-604.
• [3] Jaszczak S.: Procedura hardware in the loop w syntezie algorytmów sterowania. Pomiary Automatyka Kontrola, 2010, nr 7, s. 663-665.
• [4] Lemmon E. W., McLinden M. O., Huber M. L.: REFPROP 7.0. NIST Standard Reference Database 23. National Institute of Standards and Technology, Gaithersburgh, Maryland, USA, 2002.
• [5] Łokietek T., Zakrzewski B., Hrycyk E.: Recuperation of cold in refrigerating devices. Proceedings of the 23rd IIR International Congress of Refrigeration. Prague, Czech Republic, 21-26 August 2011, ID: 543.
• [6] Pearson, F. S.: How to improve energy efficiency in refrigerating equipment. 17th Informatory Note on Refrigerating Technologies, IIR, 2003.
• [7] Zakrzewski B.: Odszranianie oziębiaczy powietrza. WNT, 2007, Warszawa, 266 p.