Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency

From multiple industrial testing on chiller performance, refrigerant contaminants had been known as one of the main cause of efficiency loss. As the refrigerant is circulated throughout the refrigeration cycle, these efficiency loss causes great energy wastage and damage to equipment. This re...

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Main Author: Li, Louis Ying Liang
Other Authors: Abhisek Ukil
Format: Final Year Project
Language:English
Published: 2017
Subjects:
Online Access:http://hdl.handle.net/10356/70776
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-707762023-07-07T17:18:57Z Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency Li, Louis Ying Liang Abhisek Ukil School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering From multiple industrial testing on chiller performance, refrigerant contaminants had been known as one of the main cause of efficiency loss. As the refrigerant is circulated throughout the refrigeration cycle, these efficiency loss causes great energy wastage and damage to equipment. This report studies the possible impact of contaminants in a chiller system through simulations using MATLAB Simulink. The model block built using external library Thermolib, the model consists of the compressor, evaporator, condenser and expansion valve. The refrigerant R134a was used throughout the simulations. Thermodynamic properties of the R134a such as enthalpy, heat transfer coefficient and pressure of the system were adjusted to simulate the presence of refrigerant contaminants in the system. The effect of compressor discharged temperature was also discussed in this report. Simulation results show the increase in compressor work and reduction in refrigeration effect in a contaminated system. The simulation model was able to produce results that corresponds with existing industrial study. Bachelor of Engineering 2017-05-11T05:26:42Z 2017-05-11T05:26:42Z 2017 Final Year Project (FYP) http://hdl.handle.net/10356/70776 en Nanyang Technological University 67 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering
spellingShingle DRNTU::Engineering::Electrical and electronic engineering
Li, Louis Ying Liang
Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
description From multiple industrial testing on chiller performance, refrigerant contaminants had been known as one of the main cause of efficiency loss. As the refrigerant is circulated throughout the refrigeration cycle, these efficiency loss causes great energy wastage and damage to equipment. This report studies the possible impact of contaminants in a chiller system through simulations using MATLAB Simulink. The model block built using external library Thermolib, the model consists of the compressor, evaporator, condenser and expansion valve. The refrigerant R134a was used throughout the simulations. Thermodynamic properties of the R134a such as enthalpy, heat transfer coefficient and pressure of the system were adjusted to simulate the presence of refrigerant contaminants in the system. The effect of compressor discharged temperature was also discussed in this report. Simulation results show the increase in compressor work and reduction in refrigeration effect in a contaminated system. The simulation model was able to produce results that corresponds with existing industrial study.
author2 Abhisek Ukil
author_facet Abhisek Ukil
Li, Louis Ying Liang
format Final Year Project
author Li, Louis Ying Liang
author_sort Li, Louis Ying Liang
title Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
title_short Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
title_full Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
title_fullStr Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
title_full_unstemmed Analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
title_sort analysing refrigerant contaminants and reclamation service to prolong chiller lifespan and improving chiller energy efficiency
publishDate 2017
url http://hdl.handle.net/10356/70776
_version_ 1772827358878760960