long-term evaluation and analysis of a residential building integrated with pvt/ water and pvt al2o3/water systems in basra, south of iraq

This paper aims to study providing electricity and domestic hot water demand for a single-family house in basra city, south of iraq. three systems have been simulated by trnsys16 software to determine their thermal and electrical performance: traditional house (without pvt), with the pvt/water-based and with the pvt/0.4%al2o3 systems. the annual energy consumption, collected energy, auxiliary energy, thermal solar fraction and domestic hot water have been analyzed in long-term simulation. the results show that the use of the pvt/water and the pvt/0.4%al2o3 systems combined with the house decreased the annual energy consumption by about 43.54% and 52. 33% compared with the traditional house. the results also established that when using the pvt/0.4%al2o3 system, the collected energy increased by 17.12%, while the auxiliary energy decreased by 31.51% compared with the pvt/water system. it is also concluded that using both the pvt/al2o3 and the pvt/water systems with the traditional building covered the domestic hot water demand at about 42% to 100%, and 46% to 100% in various months, respectively. finally, the results highlighted that there is an improvement in the thermal solar fraction of about 14.5% in the case of using the pvt/al2o3 system compared with the pvt/water) system.