Neural network metamodelling in multi-objective optimization of a high latitude solar community

Janne Hirvonen; Hassam Rehman; Kalyanmoy Deb; Kai Sirén

doi:10.1016/j.solener.2017.06.040

Neural network metamodelling in multi-objective optimization of a high latitude solar community

Janne Hirvonen^*, Hassam Rehman, Kalyanmoy Deb, Kai Sirén

^*Corresponding author for this work

Research output: Contribution to journal › Article

8 Citations (Scopus)

Abstract

A solar community of 100 residential houses was optimized for Finnish conditions with the aim of achieving a 90% solar fraction for both space heating and domestic hot water. Optimization was done using a novel method based on neural network metamodelling and compared to the standard NSGA-II genetic algorithm. Compared to NSGA-II, the new method obtained a larger hypervolume by finding better solutions both in the center and edge of the non-dominated front. The combined non-dominated front of both methods was better than either one separately. The performance target was achieved as the optimal solar community designs had heating solar fractions ranging from 64% to 95%.

Original language	English
Pages (from-to)	323-335
Number of pages	13
Journal	Solar Energy
Volume	155
DOIs	https://doi.org/10.1016/j.solener.2017.06.040
Publication status	Published - 1 Oct 2017
MoE publication type	A1 Journal article-refereed

Keywords

Neural network
Seasonal storage
Simulation-based optimization
Solar assisted heat pump
Solar community
Solar district heating

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10.1016/j.solener.2017.06.040

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title = "Neural network metamodelling in multi-objective optimization of a high latitude solar community",

abstract = "A solar community of 100 residential houses was optimized for Finnish conditions with the aim of achieving a 90% solar fraction for both space heating and domestic hot water. Optimization was done using a novel method based on neural network metamodelling and compared to the standard NSGA-II genetic algorithm. Compared to NSGA-II, the new method obtained a larger hypervolume by finding better solutions both in the center and edge of the non-dominated front. The combined non-dominated front of both methods was better than either one separately. The performance target was achieved as the optimal solar community designs had heating solar fractions ranging from 64% to 95%.",

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AU - Deb, Kalyanmoy

AU - Sirén, Kai

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AB - A solar community of 100 residential houses was optimized for Finnish conditions with the aim of achieving a 90% solar fraction for both space heating and domestic hot water. Optimization was done using a novel method based on neural network metamodelling and compared to the standard NSGA-II genetic algorithm. Compared to NSGA-II, the new method obtained a larger hypervolume by finding better solutions both in the center and edge of the non-dominated front. The combined non-dominated front of both methods was better than either one separately. The performance target was achieved as the optimal solar community designs had heating solar fractions ranging from 64% to 95%.

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KW - Seasonal storage

KW - Simulation-based optimization

KW - Solar assisted heat pump

KW - Solar community

KW - Solar district heating

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