WEEK 12 - CHAPTER 2 LITERATURE REVIEW

2.1 Introduction

           The project literature review includes reviews of articles, paper and review proceedings, books, and lectures. A literature review was conducted to look at the case and the possibility of the project to solve it. A reading of the literature gives an overview of the basics of this project. Improved technologies in cooling and heating on the market, and how well heat sinks and thermo-electric modules interact with cool outdoor air, are among the projects that have been studied. The flow rate of coolant from inside to outside the box, as well as the resistance and size of the required thermal coolant, are all factors to consider.

Title	Authors	Contribution	Methodology	Finding
Development of portable air conditioning system using Peltier and seebeck effect	Shafiei, Naser & Harun, Mohamad Haniff & Mohd Annuar, Khalil & Mohd Ab Halim, Mohd Firdaus & Mohd Aras, Mohd Shahrieel & Azahar, Arman.	Replacing coolant with Peltier module, which is able to generate hot and cold system in one device. Peltier does not require any gas that might harmful to the users	measuring Peltier module using several volume of containers - record temperature in the container in time intervals	Peltier module is able to achieve minimum temperature 16oC and maximum around 40oC. This system can replace coolant usage that can be harmful for human in long term.
Humidity and temperature monitoring	Abdulrazzak, Ibtihaj Abdulwahhab Abdulrazzak & Bierk, Hussain & Ahmed, Lum	This system utilizes HC12 data transmitter that transfers data faster, has high receiving sensitivity and low power consumption which is ideal for monitoring and control process	- DHT22 humidity and temperature sensor measures the surrounding air and send the digital signal output to Arduino - Arduino and HC12 data transmitter communicate as alternate transmitter and receiver of the readings - Humidity and temperature readings will be displayed on LCD	The humidity and temperature monitoring system consumers low power, provide real time observation and data analysis. This system can improve efficiency and accuracy that will help people’s livelihoods