Moreover, 45% of building energy load can be covered instantly by renewable energy systems in all Moroccan climatic zones. More than 21% of energy saving can be achieved, 28% in heating load and 40% in cooling. The obtained results show that the application of the multi-objective study conclusions combined with an efficient use of renewable energies makes it possible to achieve zero energy building throughout all Moroccan housing stock. A multi-objective optimization has been carried out in order to find the best solution which will allow a compromise between the building life cycle cost, energy saving and thermal comfort through the optimization of the aforementioned design parameters as passive energy efficiency measures.
The design features considered include building orientation, windows type and Window-to-Wall Ratio, wall and roof insulation and infiltration rate. The impacts of retrofitting an existing residential building to meet zero energy balance in the six Moroccan climatic zones have been investigated. International Journal of Energy Research Wiley The present study aims to assess the possibility of achieving net zero energy building in the Moroccan housing stock by combining architectural energy efficiency practices and renewable energies for hot water and electricity productions.
It is also noted from experimental and simulated results that flat‐plate solar collector‐based water heater produced more thermal energy than the system based on the evacuated tube solar collector for all major Canadian cities. ENERGY BUILDING SIMULATION SOLAR THERMAL PROCESSES GROUND-COUPLED HEAT TRANSFER HIGH-TEMPERATURE SOLAR APPLICATIONS GEOTHERMAL HEAT PUMP SYSTEMS COUPLED. The conjunctions of solar thermal collectors with DWHR units are found most beneficial in Edmonton.
Their analysis was carried out by TRNSYS software using actual gas consumption data. Subsequently, the models are used to investigate the performance of similar systems for five major Canadian cities of Halifax, Montreal, Toronto, Edmonton, and Vancouver. large-scale solar heating systems to prevent carbon emissions from the greenhouse sector in Ontario, Canada 19. While the addition of the DWHR and the evacuated tube collector in House B would result in an annual energy saving of 1771 kWh. The addition of the DWHR and the flat‐plate solar thermal collector would result in 1831 kWh of annual energy saving in House A. Figure 4 presents the variation in water temperature at different heights in the domestic hot water tank. Both systems are modeled in TRNSYS, and the models are validated by experimental data. Model validation The first six days of data were used validation the model, from the 2nd until the 7th September 2015. The second SDHW system in House B includes an evacuated tube solar collector, an electric tank, and a DWHR unit. The first SDWH system in House A consists of a flat plate solar thermal collector in combination with a gas boiler and a DWHR unit. Both SDHW systems are recently installed at the Archetype Sustainable Twin Houses at Kortright Center, Vaughan, Ontario. In this paper, the performance of two solar domestic hot waters (SDHW) with drain water heat recovery (DWHR) units is investigated. Simulation and experimental investigation of two hybrid solar domestic water heaters with drain water heat recovery Simulation and experimental investigation of two hybrid solar domestic water heaters with drain.