Energy-efficient heat exchanger design for indoor air quality in intercity buses

ATMACA İ., Demirezen A., ÇAĞLAR A.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS, 2021 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1080/15567036.2021.1891158
  • Dergi Adı: ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ABI/INFORM, Aerospace Database, Applied Science & Technology Source, CAB Abstracts, Communication Abstracts, Compendex, Computer & Applied Sciences, Environment Index, Greenfile, INSPEC, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: Indoor air quality, ventilation, heat exchanger design, heat recovery, energy efficiency
  • Akdeniz Üniversitesi Adresli: Evet

Özet

In this study, a heat recovery exchanger was designed to provide indoor air quality (IAQ) and energy efficiency for intercity buses used in public transport. The heat recovery exchanger enabled the supply of fresh air into the bus cabin in an energy-efficient way to obtain a clean indoor environment. Two different simulations were conducted in the study. The first simulation was performed to determine the amount of required fresh air for the bus. The fresh airflow rate requirement was identified based on the carbon dioxide concentration inside the passenger bus. In the other simulation, the effect of the design parameters of a compact heat recovery exchanger with offset strip-fin on the effectiveness of the heat exchanger was investigated. The results showed that about 25% of the total ventilation should be supplied by fresh air in order to satisfy IAQ inside the bus cabin. They also showed that the effectiveness of the heat recovery exchanger increased with an increasing number of both plates and fins, larger plate dimensions, and decreasing fin offset length. Without impairing the IAQ, the maximum heat recovery was achieved with the highest effectiveness obtained for 20%-25% outside air ventilation.