Optimization of Process Parameters of Ground Source Heat Pumps for Space Heating Applications with Taguchi Method

Year 2018, , 991 - 998, 01.12.2018

Mustafa Bahadır Özdemir

https://doi.org/10.2339/politeknik.473411

Abstract

In this paper, optimization of the influence of the process parameters
of ground source heat pump (GSHP) with the double U tube heat
exchanger for space heating applications was performed. The coefficient of performance (COP_sys)
in GSHP system was investigated during experimental measurements with various
process parameters; space air inlet/outlet temperatures (T_i,sa and T_o,sa)
and soil inlet/outlet temperatures (T_i,wa and T_o,wa).
Taguchi method performed for obtained the optimum process conditions on the COP_sys
in GSHP system. Taguchi experimental design considered as L16 orthogonal array.
The most influence of process parameter on the COP_sys in GSHP system
was evaluated by using analysis of variance (ANOVA) and signal/noise (S/N)
ratio. The optimum process parameter was determined as A4B1C1D1 for COP_sys
in GSHP with ANOVA analysis. The optimum levels were computed as T_i,sa
at Level 1 (32 °C),  the T_o,sa
at Level 2 (17°C), the T_i,wa at Level 2 (6°C) and and the T_o,wa
at Level 1 (9°C). The most significant parameter on the COPsys for space
heating applications of GSHP system were found as T_i,sa and T_o,sa
with 48.4 %..

Keywords

Taguchi method, ANOVA, ground source heat pump, COPsys, heating applications absorbent, refrigeration

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