On Preheating of the Outdoor Ventilation Air

Anna Romanska-Zapala, Mark Bomberg, Miroslaw Dechnik, Malgorzata Fedorczak-Cisak and Marcin Furtak
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Anna Romanska-Zapala: Department of Automatic Control and Information Technology, Cracow University of Technology, 31-155 Cracow, Poland
Mark Bomberg: Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY 13699, USA
Miroslaw Dechnik: Malopolska Laboratory of Energy Efficient Building, Cracow University of Technology, 31-155 Cracow, Poland
Malgorzata Fedorczak-Cisak: Malopolska Laboratory of Energy Efficient Building, Cracow University of Technology, 31-155 Cracow, Poland
Marcin Furtak: Malopolska Laboratory of Energy Efficient Building, Cracow University of Technology, 31-155 Cracow, Poland

Energies, 2019, vol. 13, issue 1, 1-12

Abstract: The growing popularity of buildings with integrated sub-systems requires a review of methods to optimize the preheating of ventilation air. An integrated system permits using geothermal heat storage parallel to the direct outdoor air intake with additional treatment in the mechanical room as a part of building an automatic control system. The earth–air heat exchanger (EAHX) has many advantages but also has many unanswered questions. Some of the drawbacks are: A possible entry of radon gas, high humidity in the shoulder seasons, and the need for two different air intake sources with a choice that depends on the actual weather conditions. In winter the EAHX may be used continuously to ensure thermal comfort, while in other seasons its operation must be automatically controlled. To generate missing information about EAHX technology we examined two nearly identical EAHX systems, one placed in the ground next to a building and the other under the basement slab. In another project, we reinforced the ground storage action by having a heat exchanger placed on the return pipes of the hydronic heating system. The information provided in this paper shows advantages of merging both these approaches, while the EAHX could be placed under the house or near the basement foundation that is using an exterior basement insulation.

Keywords: earth–air heat exchanger; energy efficiency; thermal mass; smart and integrated control systems; thermal comfort (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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