A Cascade Proportional Integral Derivative Control for a Plate-Heat-Exchanger-Based Solar Absorption Cooling System

Yeudiel Garcíadealva, Roberto Best, Víctor Hugo Gómez, Alejandro Vargas, Wilfrido Rivera and José Camilo Jiménez-García
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Yeudiel Garcíadealva: Instituto de Energías Renovables (IER), Universidad Nacional Autónoma de México (UNAM), 62588 Temixco, Mexico
Roberto Best: Instituto de Energías Renovables (IER), Universidad Nacional Autónoma de México (UNAM), 62588 Temixco, Mexico
Víctor Hugo Gómez: Instituto de Energías Renovables (IER), Universidad Nacional Autónoma de México (UNAM), 62588 Temixco, Mexico
Alejandro Vargas: Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México (UNAM), 76230 Querétaro, Mexico
Wilfrido Rivera: Instituto de Energías Renovables (IER), Universidad Nacional Autónoma de México (UNAM), 62588 Temixco, Mexico
José Camilo Jiménez-García: Instituto de Energías Renovables (IER), Universidad Nacional Autónoma de México (UNAM), 62588 Temixco, Mexico

Energies, 2021, vol. 14, issue 13, 1-20

Abstract: Automatic proportional integral derivative control techniques are applied in a single-stage solar absorption cooling system, showing 3.8 kW (~1 ton) cooling capacity, with a coefficient of performance of 0.6 and −4.1 °C evaporator cooling temperature. It is built with plate heat exchangers as main components, using ammonia–water as the working mixture fluid and solar collectors as the main source of hot water. Control tuning was verified with a dynamical simulation model for a solution regarding mass flow stability and temperature control in the solar absorption cooling system. The controller improved steady thermodynamic state and time response. According to experimental cooling temperatures, the system could work in ranges of refrigeration or air-conditioning end-uses, whose operation makes this control technique an attractive option to be implemented in the solar absorption cooling system.

Keywords: ammonia–water; dynamic model HVACs; automatic control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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