Browsing by Author "Sanz, Asier"
Now showing 1 - 2 of 2
Results Per Page
Sort Options
Item A Solar Dually PVT Driven Direct Expansion Heat Pump One-Year Field Operation Results at Continental Climate(2022-04-27) Sanz, Asier; Martín, Antonio J.; Pereda, Ainhoa; Román, Eduardo; Ibañez, Pedro; Fuente, Raquel; SISTEMAS FOTOVOLTAICOSThe high energy-consuming building sector needs to meet both electricity and heat demands. In a nearly zero energy building scenario, most of the consumed energy would be generated locally by means of renewable solutions that nowadays seem not to provide an attractive performance or cost-competitiveness. Solar-based technologies tend to be the most promising ones, but for high densely populated areas, the usual photovoltaic or thermal single approaches may not be efficient enough. The current work is focused on the analysis of the dual use of the solar resource by means of hybrid PVT collectors and their smart combination with direct expansion heat pumps through predictive control strategies. To that end, a system was developed, installed in a real-use single-family house at a continental climate for domestic hot water application, operated and monitored for one entire year. The average day indicator results show 83% renewable energy share, 220% self-sufficiency ratio, 41% heat pump self-consumption and 46% of the solar fraction.Item Solar Thermal Collectors for Medium Temperature Applications: A Comprehensive Review and Updated Database: A Comprehensive Review and Updated Database(2016-06) Iparraguirre-Torres, Iñigo; Huidobro, Ana; Fernández-García, Aránzazu; Valenzuela, Loreto; Horta, Pedro; Sallaberry, Fabienne; Osório, Tiago; Sanz, Asier; Tecnalia Research & Innovation; SISTEMAS FOTOVOLTAICOSAlthough the technology of solar thermal collectors for medium temperature applications is not new, few collectors and commercial installations were available worldwide. Presently the sector is growing rapidly, new technologies have been developed and real installations using these technologies are already being built all around the world for different applications, especially for the generation of heat required by industrial applications. Considering the increasing number of available products and the importance of disseminating this information among system designers and end-users, a database of the available solar collectors for medium temperature applications is under development. The information has been gathered from the different collector manufacturers and suppliers and the available technical information published on the different collector models. Aiming a thorough insight into these new commercially available solutions, the database includes the most relevant technical information of the different existing collectors. This work is being done within the framework of the European project STAGE-STE (Scientific and Technological Alliance for Guaranteeing the European Excellence in Concentrating Solar Thermal Energy) (http://www.stage-ste.eu/). The information gathered will also be used within the Task 49, the working group for Solar Heat Integration in Industrial Process (SHIP) of the Solar Heating and Cooling program (SHC) by the International Energy Agency (IEA) (http://task49.iea-shc.org/).