Optimization of the PCM-integrated solar domestic hot water system under different thermal stratification conditions

• DOI: 10.22059/ees.2016.59562
• Publication Date: 2016-12-01
• Authors: Mehrdad Shirinbakhsh; Nima Mirkhani; Behrang Sajadi
• Keywords: Stratification (seeds); Phase-change material; Thermal Stratification; Fraction (chemistry)

Many researchers have investigated how to increase the overall efficiency of solar-driven thermal systems. Several key parameters, such as collector and storage tank characteristics, may impose some constraints on annual solar fraction (ASF) In this paper, behaviour integrating phase change material (PCM) in SDHW systems is modelled optimized numerically. Coupled partly stratified PCM-embedded governing equations are utilized simulate performance system. The developed code presents monthly system including temperature profile. results indicate that stratification will ASF up about 4.6%. Additionally, it found optimum amount for PCM its melting changed goes from fully mixed state. Integrating leads increases 5.3% a single-node tank, while rise only 0.7% seen tank.