Simulation and experimental investigation of two hybrid solar domestic water heaters with drain water heat recovery
July 26, 2015 Editor 0
In this paper, the performance of two solar domestic hot waters (SDHW) with drain water heat recovery (DWHR) units is investigated. Both SDHW systems are recently installed at the Archetype Sustainable Twin Houses at Kortright Center, Vaughan, Ontario. 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. The second SDHW system in House B includes an evacuated tube solar collector, an electric tank, and a DWHR unit. Both systems are modeled in TRNSYS, and the models are validated by experimental data. The addition of the DWHR and the flat-plate solar thermal collector would result in 1831 kWh of annual energy saving in House A. While the addition of the DWHR and the evacuated tube collector in House B would result in an annual energy saving of 1771 kWh. Subsequently, the models are used to investigate the performance of similar systems for five major Canadian cities of Halifax, Montreal, Toronto, Edmonton, and Vancouver. The conjunctions of solar thermal collectors with DWHR units are found most beneficial in Edmonton. 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. Copyright © 2015 John Wiley & Sons, Ltd.
This paper presents TRNSYS simulations and experimental studies of two solar domestic hot water (SDWH) systems with drain water heat recovery (DWHR) units. The validated models are used to investigate similar systems for five Canadian cities. Edmonton has the highest annual energy consumption of 3763 kWh by gas boiler. Edmonton has the highest values of heat recovery by the DWHR, that is, 941 kWh. The flat-plate collector-based SDWH produced more annual energy than the evacuated tube collectors for all chosen cities.
- Hybrid power generation system of solar energy and fuel cells
- U of T-led research improves performance of next-generation solar cell technology
- Researchers find a stable way to store the sun’s heat
- Investigation of solar hybrid system with concentrating Fresnel lens, photovoltaic and thermoelectric generators
- Photovoltaic cells energy performance enhancement with down-converting photoluminescence phosphors
- The Role of the Complementary Sector and its Relationship with Network Formation and Government Policies in Emerging Sectors: The Case of Solar Photovoltaics Between 2001 and 2009
Subscribe to our stories
- Prize-winning projects promote healthier eating, smarter crop investments June 28, 2018
- Reliable energy for all June 28, 2018
- Making marble from bottles: plastic waste’s second life in Kenya June 28, 2018
- A regional enterprise to commercialize an integrated technology for waste water treatment and biowaste conversion in eastern Africa May 27, 2018
- Dr Peggy Oti-Boateng May 27, 2018