![]() ![]() A breakdown of the primary energy sources used in our scenario is as follows: 43% wind, 29% concentrated solar thermal power, and 20% utility photovoltaic. It was found that by shifting the EWH load by just 1 hour, the electricity demand of Australia could be met using purely renewable electricity at an installed capacity of 145 GW with a capacity factor of 30%, an electricity spillage of 20%, and a generation cost of 15.2 ¢/kWh. The electricity demand of water heaters was shifted from periods of low renewable resource and high demand to periods of high renewable resource and low demand, enabling us to effectively reduce the installed capacity requirements of a 100%‐renewable electricity grid. The load‐shifting potential of Australia was estimated for each hour of the simulation period using a nationwide aggregate EWH load model on a 90 × 110 raster grid. The results indicated that when the cooling load icreased from 0 W to 3000 W, the compressor power increased by 11.3%, 6.3%, and 9.3%, using the 6.4 mm coil diameter with 7.9 m length, 6.4mm diameter of the coil with 5.3m length and 9.5mm coil diameter with 5.3m length, respectively.Ī low‐carbon electricity supply for Australia was simulated, and the installed capacity of the electrical grid was optimized by shifting the electricity demand of residential electric water heaters (EWHs). It was found that the ASACWH using a pipe with a coil diameter of 6.4 mm and length of 7.9 m performed the highest cooling capacity and COP, and produced more comfortable room temperature than the other two pipes. This study used cooling load with a variation of 0 W, 1000 W, 2000 W, and 3000 W without hot water circulation in the simulation room. ![]() In this study, cooling capacity, Coefficient of Performance (COP), compressor power and room temperature were evaluated in three types of trombone coil (6.4 mm coil diameter with a length of 7.9 m, 6.4 mm coil diameter with a length of 5.3 m, and 9.5 mm coil diameter with a length of 5.3 m) with different cooling load variation. The diameter and length of the dummy condenser pipe are intensely affected by ACWH performance. The Air Source Air Conditioning Water Heater (ASACWH) performance as an energy source to heat water in the tank using dummy condenser type of trombone coil with different diameter and pipe length without hot water circulation has been investigated. The system will increase the combined space heating and cooling electricity consumptions annually by 3%, on the other hand, a reduction of 55% of water heater related annual electricity consumption was noted relative to the conventional electric water heater. The outlet water temperature fluctuates in the range of 49.5 ☌ to 55.9 ☌ (while the setpoint temperature was taken at 54 ☌). ![]() The best coefficient of performance (COP) was obtained at 20 ☌ and 35% RH from the chosen sets of air conditions. It was concluded that the temperature and humidity of surrounding air produced a considerable impact on the heating capacity of the ASHPWH. Furthermore, the validated models were applied to evaluate the performance of the unit to meet the year-round hot water demand and established its significance with respect to the conventional electric water heater. The research methodology involved, installation of the ASHPWH unit in an Archetype Sustainable House (ASH), reconfiguration of some parts of house plumbing system, build sensors and data acquisition system to collect real-time experimental data, developed and validated TRNSYS models. ![]() Therefore, an understanding of energy performance of this types water heaters is critical to justify their use in the Canadian houses. On the other hand, if it is installed in the indoor space (which is the case of this research), the presence of the system in the house affects the house heating and cooling loads. However, the conditions are different in Canada, where outside air temperature is well below the freezing point for several months, and that diminishes the water heating capacity of these systems significantly. ASHPWH has a better performance than the conventional electric water heater if it is installed in a hotter climate. The performance of a new type of Air Source Heat Pump Water Heater (ASHPWH) has been investigated. ![]()
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