Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)

The report discusses and compares conventional air conditioning systems to the liquid desiccant air conditioning (LDAC) systems. In recent years, it has come to light that a larger focus should be placed on LDAC for its energy conserving abilities as it is able to make use of low grade waste heat as...

Full description

Saved in:
Bibliographic Details
Main Author: Tay, Zeng Hao
Other Authors: Anutosh Chakraborty
Format: Final Year Project
Language:English
Published: 2016
Subjects:
Online Access:http://hdl.handle.net/10356/68370
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-68370
record_format dspace
spelling sg-ntu-dr.10356-683702023-03-04T19:36:08Z Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC) Tay, Zeng Hao Anutosh Chakraborty School of Mechanical and Aerospace Engineering DRNTU::Engineering The report discusses and compares conventional air conditioning systems to the liquid desiccant air conditioning (LDAC) systems. In recent years, it has come to light that a larger focus should be placed on LDAC for its energy conserving abilities as it is able to make use of low grade waste heat as a main source of energy. In addition, various forms and types of liquid desiccants will be looked into to determine which would be the most efficient and suitable one to be utilised in the dehumidification process. Despite its corrosive power, one of the most common desiccant solution to be used in LDAC is Lithium chloride. In order to overcome this corrosive aspect of LiCl, plastic plate heat exchanges were introduced in the system. The simulation program ‘TRNSYS’ will be able to utilize the values gathered from the heat transfer coefficient of the plastic plate heat exchanger. The project is primarily focused on a simulation that integrates the existing vapour compression system with the liquid desiccant dehumidifying system while taking Singapore’s climate into perspective. The model set up is done through ‘TRNSYS’ – a simulation software – that will be able to determine the ideal values for the operating parameters. Numerous references and assumptions are made on the power ratings of the components used in the simulation in order to derive at the results. The results are also compared with the experimental data. It is proven, through both the simulation and experimental results that the hybrid system is energy efficient and compared to the conventional air conditioning system. The amount of energy saved from the vapour cooling system is 24.9% while the energy saved from the cooling load is found to be 46.5%. Bachelor of Engineering (Mechanical Engineering) 2016-05-25T07:56:52Z 2016-05-25T07:56:52Z 2016 Final Year Project (FYP) http://hdl.handle.net/10356/68370 en Nanyang Technological University 78 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
spellingShingle DRNTU::Engineering
Tay, Zeng Hao
Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)
description The report discusses and compares conventional air conditioning systems to the liquid desiccant air conditioning (LDAC) systems. In recent years, it has come to light that a larger focus should be placed on LDAC for its energy conserving abilities as it is able to make use of low grade waste heat as a main source of energy. In addition, various forms and types of liquid desiccants will be looked into to determine which would be the most efficient and suitable one to be utilised in the dehumidification process. Despite its corrosive power, one of the most common desiccant solution to be used in LDAC is Lithium chloride. In order to overcome this corrosive aspect of LiCl, plastic plate heat exchanges were introduced in the system. The simulation program ‘TRNSYS’ will be able to utilize the values gathered from the heat transfer coefficient of the plastic plate heat exchanger. The project is primarily focused on a simulation that integrates the existing vapour compression system with the liquid desiccant dehumidifying system while taking Singapore’s climate into perspective. The model set up is done through ‘TRNSYS’ – a simulation software – that will be able to determine the ideal values for the operating parameters. Numerous references and assumptions are made on the power ratings of the components used in the simulation in order to derive at the results. The results are also compared with the experimental data. It is proven, through both the simulation and experimental results that the hybrid system is energy efficient and compared to the conventional air conditioning system. The amount of energy saved from the vapour cooling system is 24.9% while the energy saved from the cooling load is found to be 46.5%.
author2 Anutosh Chakraborty
author_facet Anutosh Chakraborty
Tay, Zeng Hao
format Final Year Project
author Tay, Zeng Hao
author_sort Tay, Zeng Hao
title Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)
title_short Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)
title_full Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)
title_fullStr Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)
title_full_unstemmed Utilization of low grade solar energy for vapour compression cycle (VCS) integrated with liquid desiccant dehumidification system (LDAC)
title_sort utilization of low grade solar energy for vapour compression cycle (vcs) integrated with liquid desiccant dehumidification system (ldac)
publishDate 2016
url http://hdl.handle.net/10356/68370
_version_ 1759855207556055040