A study of humidity effect toward the quality of air from air conditioning system

This thesis is about study of humidity effect towards quality of air using air conditioning unit at Mechanical Engineering Faculty (FKM) University Malaysia Pahang (UMP). Humidity is the quality of how much water or moisture content in the air. This project is to analyze the effect of dehumidificati...

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Bibliographic Details
Main Author:	Mohd Zamri, Mohd Kama
Format:	Undergraduates Project Papers
Language:	English
Published:	2012
Subjects:	TH Building construction
Online Access:	http://umpir.ump.edu.my/id/eprint/4946/ http://umpir.ump.edu.my/id/eprint/4946/ http://umpir.ump.edu.my/id/eprint/4946/1/cd7345_91.pdf

id	ump-4946
recordtype	eprints
spelling	ump-49462015-03-03T09:22:08Z http://umpir.ump.edu.my/id/eprint/4946/ A study of humidity effect toward the quality of air from air conditioning system Mohd Zamri, Mohd Kama TH Building construction This thesis is about study of humidity effect towards quality of air using air conditioning unit at Mechanical Engineering Faculty (FKM) University Malaysia Pahang (UMP). Humidity is the quality of how much water or moisture content in the air. This project is to analyze the effect of dehumidification towards quality of air from air conditioning unit. The dehumidification method is using heater which is supplied before and after the evaporator. Variable speed of airflow is conducted to determine the effect of airspeed toward dehumidification. Analysis is done by giving different value of airspeed and different humidity. Experiment is conducted using air conditioning unit at thermodynamic laboratory which 24 experiments were done by giving different value of fan speed and humidity. Effect of pre-heater and re-heater also being monitored by varies the situation inside the air conditioning duct by switch on and off both of the heaters. After each experiment is being conducted, the quality of air at the exit is monitored and plotted on Psychrometric chart. Standard ASHRAE thermal comfort zone is used to determine the optimum temperature and humidity for thermal comfort. Various graphs is plotted and to determine the effect of humidification toward various parameters such as Coefficient of Performance (COP) of refrigerant, point temperatures, amount of heat being transferred and humidity. From the results, by increasing the velocity will help to make the environment become more comfortable. Secondly, increasing air velocity flow through evaporator increase its heat transfer and be calculated using energy balance equation. Besides that, from the experiment pre-heater and re-heater help to adjust the humidity and temperature at each point. Then, usage of humidifier causing the temperature and humidity to became further away from thermal comfort zone. Thus without using the humidifier, the quality of air from air conditioning unit FKM UMP can be improved. 2012-07 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/4946/1/cd7345_91.pdf Mohd Zamri, Mohd Kama (2012) A study of humidity effect toward the quality of air from air conditioning system. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:75695&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TH Building construction
spellingShingle	TH Building construction Mohd Zamri, Mohd Kama A study of humidity effect toward the quality of air from air conditioning system
description	This thesis is about study of humidity effect towards quality of air using air conditioning unit at Mechanical Engineering Faculty (FKM) University Malaysia Pahang (UMP). Humidity is the quality of how much water or moisture content in the air. This project is to analyze the effect of dehumidification towards quality of air from air conditioning unit. The dehumidification method is using heater which is supplied before and after the evaporator. Variable speed of airflow is conducted to determine the effect of airspeed toward dehumidification. Analysis is done by giving different value of airspeed and different humidity. Experiment is conducted using air conditioning unit at thermodynamic laboratory which 24 experiments were done by giving different value of fan speed and humidity. Effect of pre-heater and re-heater also being monitored by varies the situation inside the air conditioning duct by switch on and off both of the heaters. After each experiment is being conducted, the quality of air at the exit is monitored and plotted on Psychrometric chart. Standard ASHRAE thermal comfort zone is used to determine the optimum temperature and humidity for thermal comfort. Various graphs is plotted and to determine the effect of humidification toward various parameters such as Coefficient of Performance (COP) of refrigerant, point temperatures, amount of heat being transferred and humidity. From the results, by increasing the velocity will help to make the environment become more comfortable. Secondly, increasing air velocity flow through evaporator increase its heat transfer and be calculated using energy balance equation. Besides that, from the experiment pre-heater and re-heater help to adjust the humidity and temperature at each point. Then, usage of humidifier causing the temperature and humidity to became further away from thermal comfort zone. Thus without using the humidifier, the quality of air from air conditioning unit FKM UMP can be improved.
format	Undergraduates Project Papers
author	Mohd Zamri, Mohd Kama
author_facet	Mohd Zamri, Mohd Kama
author_sort	Mohd Zamri, Mohd Kama
title	A study of humidity effect toward the quality of air from air conditioning system
title_short	A study of humidity effect toward the quality of air from air conditioning system
title_full	A study of humidity effect toward the quality of air from air conditioning system
title_fullStr	A study of humidity effect toward the quality of air from air conditioning system
title_full_unstemmed	A study of humidity effect toward the quality of air from air conditioning system
title_sort	study of humidity effect toward the quality of air from air conditioning system
publishDate	2012
url	http://umpir.ump.edu.my/id/eprint/4946/ http://umpir.ump.edu.my/id/eprint/4946/ http://umpir.ump.edu.my/id/eprint/4946/1/cd7345_91.pdf
first_indexed	2023-09-18T22:00:00Z
last_indexed	2023-09-18T22:00:00Z
_version_	1777414334373167104

A study of humidity effect toward the quality of air from air conditioning system

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