Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump
In this study, a heat pump was designed to dry the sludge produced by a wastewater treatment plant. The purpose of drying the sludge is to convert it into raw material as fuel pellets, which can provide some or all of the energy needed by the treatment plant. The design of the heat pump considered t...
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Düzce University
2025-01-01
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| Series: | Düzce Üniversitesi Bilim ve Teknoloji Dergisi |
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| Online Access: | https://dergipark.org.tr/tr/download/article-file/3881156 |
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| author | Ozan Efe Ümit Ünver Selman Cagman |
| author_facet | Ozan Efe Ümit Ünver Selman Cagman |
| author_sort | Ozan Efe |
| collection | DOAJ |
| description | In this study, a heat pump was designed to dry the sludge produced by a wastewater treatment plant. The purpose of drying the sludge is to convert it into raw material as fuel pellets, which can provide some or all of the energy needed by the treatment plant. The design of the heat pump considered the plant's production capacity and sludge generation rate. All thermal analyses were carried out according to the First Law of Thermodynamics. The heat pump system performances are investigated by using Danfoss Coolselector 2.0 program. The capacities of the heat pump components were calculated for different refrigerants and performance coefficients. The highest coefficient of performance (CoP) was found to be 5.99 for R1234zeE in summer, while the lowest was 2.33 for R134a. If the sludge is burned as biofuel, theoretically it was estimated that the energy production could range from 723,000 kWh/month to 744,000 kWh/month for the R407c and R1234zeE refrigerants respectively. The economic analysis showed that the system's payback period could range from 1.9 to 6.5 years. |
| format | Article |
| id | doaj-art-73c2bb9672644f58a2c5ad75d323eec8 |
| institution | Kabale University |
| issn | 2148-2446 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Düzce University |
| record_format | Article |
| series | Düzce Üniversitesi Bilim ve Teknoloji Dergisi |
| spelling | doaj-art-73c2bb9672644f58a2c5ad75d323eec82025-08-20T03:54:08ZengDüzce UniversityDüzce Üniversitesi Bilim ve Teknoloji Dergisi2148-24462025-01-011319510710.29130/dubited.147261197Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat PumpOzan Efe0https://orcid.org/0000-0003-3399-5174Ümit Ünver1https://orcid.org/0000-0002-6968-6181Selman Cagman2https://orcid.org/0000-0001-9214-7306YILDIZ TEKNİK ÜNİVERSİTESİ, FEN BİLİMLERİ ENSTİTÜSÜ, ENERJİ (YL) (TEZLİ)YALOVA ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİKOCAELİ ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ, ENERJİ SİSTEMLERİ MÜHENDİSLİĞİ BÖLÜMÜIn this study, a heat pump was designed to dry the sludge produced by a wastewater treatment plant. The purpose of drying the sludge is to convert it into raw material as fuel pellets, which can provide some or all of the energy needed by the treatment plant. The design of the heat pump considered the plant's production capacity and sludge generation rate. All thermal analyses were carried out according to the First Law of Thermodynamics. The heat pump system performances are investigated by using Danfoss Coolselector 2.0 program. The capacities of the heat pump components were calculated for different refrigerants and performance coefficients. The highest coefficient of performance (CoP) was found to be 5.99 for R1234zeE in summer, while the lowest was 2.33 for R134a. If the sludge is burned as biofuel, theoretically it was estimated that the energy production could range from 723,000 kWh/month to 744,000 kWh/month for the R407c and R1234zeE refrigerants respectively. The economic analysis showed that the system's payback period could range from 1.9 to 6.5 years.https://dergipark.org.tr/tr/download/article-file/3881156arıtma çamurukurutmaısı pompasısoğutucu akışkanenerji hesabısludgedryingheat pumprefrigerantenergy calculation |
| spellingShingle | Ozan Efe Ümit Ünver Selman Cagman Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump Düzce Üniversitesi Bilim ve Teknoloji Dergisi arıtma çamuru kurutma ısı pompası soğutucu akışkan enerji hesabı sludge drying heat pump refrigerant energy calculation |
| title | Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump |
| title_full | Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump |
| title_fullStr | Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump |
| title_full_unstemmed | Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump |
| title_short | Energy and Economical Analysis of Drying Process of Domestic Wastewater Treatment Sludge with Heat Pump |
| title_sort | energy and economical analysis of drying process of domestic wastewater treatment sludge with heat pump |
| topic | arıtma çamuru kurutma ısı pompası soğutucu akışkan enerji hesabı sludge drying heat pump refrigerant energy calculation |
| url | https://dergipark.org.tr/tr/download/article-file/3881156 |
| work_keys_str_mv | AT ozanefe energyandeconomicalanalysisofdryingprocessofdomesticwastewatertreatmentsludgewithheatpump AT umitunver energyandeconomicalanalysisofdryingprocessofdomesticwastewatertreatmentsludgewithheatpump AT selmancagman energyandeconomicalanalysisofdryingprocessofdomesticwastewatertreatmentsludgewithheatpump |