Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Multi-response optimization of a hybrid solar gas heating system based on the response surface method

Mohammed Dhiya-eddine Sarmouk 1, Abdelatif Merabtine 2, Hachimi Fellouah 3, Arezki Smaili 1
1 1Laboratoire de Génie Mécanique et Développement, Ecole Nationale Polytechnique, Algiers, Algeria.
2 EPF School of Engineering
3 Department of Mechanical Engineering, Université de Sherbrooke

Abstract: This work presents a multi-objective optimization of a hybrid solar gas heating system for space heating built up in Algiers, Algeria, the system was modeled using TRNSYS software. The model was then validated and was used in the optimization process. Different control strategy modes were investigated and compared. The selected mode presented an increase in the solar fraction (SF) and primary energy savings (PESR) of 40.31% and 31.32% respectively. A combination of the response surface method and the desirability function approach was adopted for the assessment and the multi-response optimization of the energetic performance of the system, with respect to the primary energy savings and the system’s overall efficiency (ijsys). Metamodels for the deemed responses were established regarding the collector area, the storage volume and the auxiliary system’s flow rate. Results of the optimization respectively presented 46.7 % and 38.46% of primary energy savings and overall efficiency.
Keywords: hybrid solar system, Optimization, Numerical modelling, Response surface method, desirability function
Pages: 556 - 563