Details
| Original language | English |
|---|---|
| Pages (from-to) | 405-415 |
| Number of pages | 11 |
| Journal | Chemie Ingenieur Technik |
| Volume | 95 |
| Issue number | 3 |
| Publication status | Published - 22 Feb 2023 |
Abstract
A computer-aided process design methodology is used to determine the limits of NH3/H2O mixtures in different heat pump cycles from 20 °C to 150 °C. The evaluation is based on a defined parameter set consisting of the coefficient of performance, total heat transfer area and volumetric heat capacity. Simple cycles with two heat flows were chosen to meet good process integration capabilities. The results are shown in a sink outlet/temperature lift matrix considering current technical limits. R1366mzz(Z) in a standard compression cycle with internal heat exchanger serves as a benchmark. To provide temperatures up to 150 °C the lift of the heat pump has to increase to about 80 K of which only the wet compressions cycle with NH3/H2O is capable of. The working domains of NH3/H2O and R1366mzz(Z) are similar, when a two-stage compression for NH3/H2O is applied.
Keywords
- Ammonia-water, Heat pump, High temperature, Simulation, Solution circuit
ASJC Scopus subject areas
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- General Chemical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: Chemie Ingenieur Technik, Vol. 95, No. 3, 22.02.2023, p. 405-415.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Simulation of Compression Heat Pump Cycles Using NH3/H2O Mixtures to Estimate Their Working Domains
AU - Loth, Maximilian
AU - Kabelac, Stephan
N1 - Funding Information: Open access funding enabled and organized by Projekt DEAL.
PY - 2023/2/22
Y1 - 2023/2/22
N2 - A computer-aided process design methodology is used to determine the limits of NH3/H2O mixtures in different heat pump cycles from 20 °C to 150 °C. The evaluation is based on a defined parameter set consisting of the coefficient of performance, total heat transfer area and volumetric heat capacity. Simple cycles with two heat flows were chosen to meet good process integration capabilities. The results are shown in a sink outlet/temperature lift matrix considering current technical limits. R1366mzz(Z) in a standard compression cycle with internal heat exchanger serves as a benchmark. To provide temperatures up to 150 °C the lift of the heat pump has to increase to about 80 K of which only the wet compressions cycle with NH3/H2O is capable of. The working domains of NH3/H2O and R1366mzz(Z) are similar, when a two-stage compression for NH3/H2O is applied.
AB - A computer-aided process design methodology is used to determine the limits of NH3/H2O mixtures in different heat pump cycles from 20 °C to 150 °C. The evaluation is based on a defined parameter set consisting of the coefficient of performance, total heat transfer area and volumetric heat capacity. Simple cycles with two heat flows were chosen to meet good process integration capabilities. The results are shown in a sink outlet/temperature lift matrix considering current technical limits. R1366mzz(Z) in a standard compression cycle with internal heat exchanger serves as a benchmark. To provide temperatures up to 150 °C the lift of the heat pump has to increase to about 80 K of which only the wet compressions cycle with NH3/H2O is capable of. The working domains of NH3/H2O and R1366mzz(Z) are similar, when a two-stage compression for NH3/H2O is applied.
KW - Ammonia-water
KW - Heat pump
KW - High temperature
KW - Simulation
KW - Solution circuit
UR - http://www.scopus.com/inward/record.url?scp=85143241948&partnerID=8YFLogxK
U2 - 10.1002/cite.202200111
DO - 10.1002/cite.202200111
M3 - Article
AN - SCOPUS:85143241948
VL - 95
SP - 405
EP - 415
JO - Chemie Ingenieur Technik
JF - Chemie Ingenieur Technik
SN - 0009-286X
IS - 3
ER -