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Dergiler / Bitlis Eren Üniversitesi Fen Bilimleri Dergisi / 2026 / Volume: 14 Issue: 2

Determining environmentally friendly working fluid for an ejector organic Rankine cycle using a low-temperature source

Servet Giray Hacıpaşaoğlu(KOCAELİ ÜNİVERSİTESİ)0000-0001-6698-3562
Sayfa
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Yayın Tarihi
2025-06-30
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

This study provides valuable insights into the selection of sustainable working fluids for ORC-EBRC systems, offering guidance for future applications in renewable energy utilization and cooling technologies.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:This paper investigates the thermodynamic performance of various environmentally friendly fluids in an integrated organic Rankine cycle (ORC) and ejector booster refrigeration cycle (EBRC) system.
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Temel Bulgular & Veri:Several natural and synthetic fluids, including those with low global warming potential (GWP) and zero ozone depletion potential (ODP), are analyzed for their thermodynamic properties such as coefficient of performance (COP), mass flow rate of cycle, expander expansion ratio (EER) and compressor compression ratio (CCR).
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Sonuç & Katkı:This study provides valuable insights into the selection of sustainable working fluids for ORC-EBRC systems, offering guidance for future applications in renewable energy utilization and cooling technologies.
🔬Tür:Research Article
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Ejector · Organic Rankine cycle · Refrigeration cycle

Abstract

This paper investigates the thermodynamic performance of various environmentally friendly fluids in an integrated organic Rankine cycle (ORC) and ejector booster refrigeration cycle (EBRC) system. The study aims to identify optimal working fluids that enhance system efficiency while minimizing environmental impact. Several natural and synthetic fluids, including those with low global warming potential (GWP) and zero ozone depletion potential (ODP), are analyzed for their thermodynamic properties such as coefficient of performance (COP), mass flow rate of cycle, expander expansion ratio (EER) and compressor compression ratio (CCR). Detailed thermodynamic analysis, including energy balances, is conducted for each fluid across the system components, assessing their effect on system performance. The results reveal that certain fluids offer significant improvements in both energy efficiency and environmental sustainability compared to other refrigerants. Based on the analyses, in the ORC-EBRC cycle, cyclopentane was found to be fluid with the lowest total mass flow rate and the highest COP. This study provides valuable insights into the selection of sustainable working fluids for ORC-EBRC systems, offering guidance for future applications in renewable energy utilization and cooling technologies.

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Bu Makaleye Atıf Yap

Hacıpaşaoğlu, S. G. (2025). Determining environmentally friendly working fluid for an ejector organic Rankine cycle using a low-temperature source. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Volume: 14 Issue: 2. https://doi.org/10.17798/bitlisfen.1615182

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