An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System
In this paper, the authors examined the technology to maximize the use of renewable energy. Passive ventilation systems are expected to reduce the energy consumption of the fan and the maintenance burden. In addition, the wall-mounted solar air heater can supply thermal energy without using any ener...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-11-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/22/7651 |
| _version_ | 1797510431149916160 |
|---|---|
| author | Junichiro Matsunaga Koki Kikuta Hideki Hirakawa Keita Mizuno Masaki Tajima Motoya Hayashi Akira Fukushima |
| author_facet | Junichiro Matsunaga Koki Kikuta Hideki Hirakawa Keita Mizuno Masaki Tajima Motoya Hayashi Akira Fukushima |
| author_sort | Junichiro Matsunaga |
| collection | DOAJ |
| description | In this paper, the authors examined the technology to maximize the use of renewable energy. Passive ventilation systems are expected to reduce the energy consumption of the fan and the maintenance burden. In addition, the wall-mounted solar air heater can supply thermal energy without using any energy at all. Therefore, this paper presents a “passive ventilation system with a solar air heater” that combines a passive ventilation system with the solar air heater to preheat the air. This system can reduce the ventilation load. To evaluate the solar air heater performance in a real environment, we developed a simulation for calculating the heat collection capacity of the solar air heater, and then the system was implemented in a real building for verification. The simulation performs hourly unsteady calculations, allowing for accurate evaluation of the annual simulation. Based on the measurement results, the effects of heating load reduction and prediction methods are presented. The solar air heater reduced the monthly ventilation load by up to 50% or more, and by at least 15%. It was also confirmed that there was a high correlation between the actual measurements and the simulation results. |
| first_indexed | 2024-03-10T05:32:26Z |
| format | Article |
| id | doaj.art-52064119cb3741c09bd7d2fd7018fb00 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T05:32:26Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-52064119cb3741c09bd7d2fd7018fb002023-11-22T23:11:24ZengMDPI AGEnergies1996-10732021-11-011422765110.3390/en14227651An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation SystemJunichiro Matsunaga0Koki Kikuta1Hideki Hirakawa2Keita Mizuno3Masaki Tajima4Motoya Hayashi5Akira Fukushima6Matsunaga Co., Ltd., Tokyo 178-0064, JapanFaculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanFaculty of Engineering, Hokkaido University of Science, Sapporo 006-8585, JapanMisawa Homes Institute of Research and Development Co., Ltd., Tokyo 168-0072, JapanSchool of Systems Engineering, Kochi University of Technology, Kami 782-8502, JapanFaculty of Engineering, Hokkaido University, Sapporo 060-8628, JapanFaculty of Engineering, Hokkaido University of Science, Sapporo 006-8585, JapanIn this paper, the authors examined the technology to maximize the use of renewable energy. Passive ventilation systems are expected to reduce the energy consumption of the fan and the maintenance burden. In addition, the wall-mounted solar air heater can supply thermal energy without using any energy at all. Therefore, this paper presents a “passive ventilation system with a solar air heater” that combines a passive ventilation system with the solar air heater to preheat the air. This system can reduce the ventilation load. To evaluate the solar air heater performance in a real environment, we developed a simulation for calculating the heat collection capacity of the solar air heater, and then the system was implemented in a real building for verification. The simulation performs hourly unsteady calculations, allowing for accurate evaluation of the annual simulation. Based on the measurement results, the effects of heating load reduction and prediction methods are presented. The solar air heater reduced the monthly ventilation load by up to 50% or more, and by at least 15%. It was also confirmed that there was a high correlation between the actual measurements and the simulation results.https://www.mdpi.com/1996-1073/14/22/7651solar air heaterpassive ventilationventilation loadresidential houseactual measurementsimulation |
| spellingShingle | Junichiro Matsunaga Koki Kikuta Hideki Hirakawa Keita Mizuno Masaki Tajima Motoya Hayashi Akira Fukushima An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System Energies solar air heater passive ventilation ventilation load residential house actual measurement simulation |
| title | An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System |
| title_full | An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System |
| title_fullStr | An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System |
| title_full_unstemmed | An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System |
| title_short | An Assessment of Heating Load Reduction by a Solar Air Heater in a Residential Passive Ventilation System |
| title_sort | assessment of heating load reduction by a solar air heater in a residential passive ventilation system |
| topic | solar air heater passive ventilation ventilation load residential house actual measurement simulation |
| url | https://www.mdpi.com/1996-1073/14/22/7651 |
| work_keys_str_mv | AT junichiromatsunaga anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT kokikikuta anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT hidekihirakawa anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT keitamizuno anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT masakitajima anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT motoyahayashi anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT akirafukushima anassessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT junichiromatsunaga assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT kokikikuta assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT hidekihirakawa assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT keitamizuno assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT masakitajima assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT motoyahayashi assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem AT akirafukushima assessmentofheatingloadreductionbyasolarairheaterinaresidentialpassiveventilationsystem |