A new and inexpensive open source data acquisition and controller for solar research: Application to a water-flow glazing |
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| Affiliation: | 1. Architectural Construction and Technology Department, E.T.S. Arquitectura, Universidad Politécnica de Madrid, Avda. Juan de Herrera, 4, 28040 Madrid, Spain;2. Applied Mathematics Department, E.T.S. Arquitectura, Universidad Politécnica de Madrid, Avda. Juan de Herrera, 4, 28040 Madrid, Spain;1. Institute of Refrigeration and Cryogenics, Research Center of Solar Power and Refrigeration, M.O.E, Shanghai Jiao Tong University, Shanghai, China;2. Norwegian University of Science and Technology, Trondheim, Norway;1. Center of Operations Research, Miguel Hernández University of Elche (UMH), Avd. de la Universidad s/n, 03202, Elche, Alicante, Spain;2. Industrial Electronics Group, Miguel Hernández University of Elche (UMH), Avd. de la Universidad s/n, 03202, Elche, Alicante, Spain;1. Department of Analytical Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran;2. Membrane Research Laboratory, Lorestan University, Khorramabad, P.O. Box 68137-17133, Iran;3. Department of Agricultural Machinery, Faculty of Agriculture, Urmia University, Urmia, Iran;1. Department of Mechanical Engineering, University of Ataturk, 25240 Erzurum, Turkey;2. Faculty of Mechanical Engineering, University of Tabriz, Iran;3. Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, Oshawa, Ontario, L1H 7K4, Canada;4. Institute for Energy Engineering, Technische Universität Berlin, Marchstr 18, 10587 Berlin, Germany |
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| Abstract: | A water-flow window consists of two glass panes making up a chamber in which a water layer flows in a controlled way. Such windows may be considered as Building-Integrated Solar Thermal (BIST) collectors, and could assist to incorporate renewable energy systems in buildings, improving their energy efficiency, especially when they are properly managed by a control system. Despite the need of an automatic controller for this kind of window and the advantages of microprocessor-based control for solar systems, only differential controllers have been described. A novel controller based on an inexpensive open source microcontroller board has been designed, built, programmed and installed in an experimental prototype water-flow window. The proposed data acquisition and control system, the code sequence steps, a model algorithm, and a comparison between the data collected by the system and a commercial datalogger are presented. The advantages of using an open source board for the proposed control system are analysed and the benefits of using a control system based on a microcontroller are discussed. |
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| Keywords: | Water-flow window Building-integrated solar thermal (BIST) systems Arduino Microcontoller Open source Smart windows |
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