Abstract
This study explores the opportunity of a combined cooling, desalination, and power (CCDP) unit that is thermally driven using low-to mid-grade heat input of 1,940 kWth (enthalpy of vaporization of steam at 200°C and mass flow rate of 1 kg/s). The proposed CCDP system is comprised of a Rankine cycle that partially drives a gas refrigeration cycle by means of shaft work and thermally drives a multiple-effect distillation (MED) unit by harnessing the rejected heat of condenser. Based on our thermodynamic model, the proposed CCDP system is more efficient from an energy-saving viewpoint compared with stand-alone systems that deliver the same services provided if there are ≥8 MED effects (units). Furthermore, the proposed polygeneration system is able to produce nearly 188 kWe of electrical power output, 116 kWth of cooling capacity, and 25.6 m3/h of freshwater capacity when water is employed as a working fluid and air as a refrigerant. In addition, the CCDP system attains an exergy efficiency of ≈42% and a primary energy-saving ratio of 28%. Because an organic Rankine cycle is promising for the conversion of low-and mid-grade heat to electricity, various organic working fluids are investigated. The results show that when propane is used instead of water, the freshwater capacity rises by 3.4%.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 7-19 |
| Number of pages | 13 |
| Journal | Desalination and Water Treatment |
| Volume | 136 |
| DOIs | |
| State | Published - Dec 1 2018 |
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Keywords
- Combined cooling
- Combined cooling
- Combined cooling and power
- Desalination
- Heating
- Polygeneration
- Power
- Power
- Tri-generation
ASJC Scopus subject areas
- Water Science and Technology
- Ocean Engineering
- Pollution
Cite this
Parametric study of an integrated organic rankine/reverse Brayton refrigeration cycle and multiple-effect desalination unit. / Alelyani, Sami M.; Sherbeck, Jonathan A.; Zhang, Zhaoli; Bertrand, Weston K.; Phelan, Patrick.
In: Desalination and Water Treatment, Vol. 136, 01.12.2018, p. 7-19.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Parametric study of an integrated organic rankine/reverse Brayton refrigeration cycle and multiple-effect desalination unit
AU - Alelyani, Sami M.
AU - Sherbeck, Jonathan A.
AU - Zhang, Zhaoli
AU - Bertrand, Weston K.
AU - Phelan, Patrick
PY - 2018/12/1
Y1 - 2018/12/1
N2 - This study explores the opportunity of a combined cooling, desalination, and power (CCDP) unit that is thermally driven using low-to mid-grade heat input of 1,940 kWth (enthalpy of vaporization of steam at 200°C and mass flow rate of 1 kg/s). The proposed CCDP system is comprised of a Rankine cycle that partially drives a gas refrigeration cycle by means of shaft work and thermally drives a multiple-effect distillation (MED) unit by harnessing the rejected heat of condenser. Based on our thermodynamic model, the proposed CCDP system is more efficient from an energy-saving viewpoint compared with stand-alone systems that deliver the same services provided if there are ≥8 MED effects (units). Furthermore, the proposed polygeneration system is able to produce nearly 188 kWe of electrical power output, 116 kWth of cooling capacity, and 25.6 m3/h of freshwater capacity when water is employed as a working fluid and air as a refrigerant. In addition, the CCDP system attains an exergy efficiency of ≈42% and a primary energy-saving ratio of 28%. Because an organic Rankine cycle is promising for the conversion of low-and mid-grade heat to electricity, various organic working fluids are investigated. The results show that when propane is used instead of water, the freshwater capacity rises by 3.4%.
AB - This study explores the opportunity of a combined cooling, desalination, and power (CCDP) unit that is thermally driven using low-to mid-grade heat input of 1,940 kWth (enthalpy of vaporization of steam at 200°C and mass flow rate of 1 kg/s). The proposed CCDP system is comprised of a Rankine cycle that partially drives a gas refrigeration cycle by means of shaft work and thermally drives a multiple-effect distillation (MED) unit by harnessing the rejected heat of condenser. Based on our thermodynamic model, the proposed CCDP system is more efficient from an energy-saving viewpoint compared with stand-alone systems that deliver the same services provided if there are ≥8 MED effects (units). Furthermore, the proposed polygeneration system is able to produce nearly 188 kWe of electrical power output, 116 kWth of cooling capacity, and 25.6 m3/h of freshwater capacity when water is employed as a working fluid and air as a refrigerant. In addition, the CCDP system attains an exergy efficiency of ≈42% and a primary energy-saving ratio of 28%. Because an organic Rankine cycle is promising for the conversion of low-and mid-grade heat to electricity, various organic working fluids are investigated. The results show that when propane is used instead of water, the freshwater capacity rises by 3.4%.
KW - Combined cooling
KW - Combined cooling
KW - Combined cooling and power
KW - Desalination
KW - Heating
KW - Polygeneration
KW - Power
KW - Power
KW - Tri-generation
UR - http://www.scopus.com/inward/record.url?scp=85058292491&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058292491&partnerID=8YFLogxK
U2 - 10.5004/dwt.2018.23264
DO - 10.5004/dwt.2018.23264
M3 - Article
AN - SCOPUS:85058292491
VL - 136
SP - 7
EP - 19
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
SN - 1944-3994
ER -