Retrofitting of Backup Air-Conditioning System In Air- Conditioned Vehicle

Abstract

This thesis has been performed for the design of backup air conditioning system of interior of the car. Air conditioning system is mainly used in passenger and commercial vehicle. The purpose of this system is to make comfortable environment in terms of desired temperature, humidity, air flow, indoor air quality, filtration, and other environmental parameter for the occupants, equipment's as well as to save fuel consumption. In this thesis cooling load is calculated for Mercedes-Benz E250 sedan car. This car interior consists of five section having an area of 3.972𝑚ଷ .To calculate the cooling load (Without Load), to calculate the cooling load (With Load), Comparison Electrical consumption Without Load and With Load. To calculate the System Thermal Efficiency, Overall efficiency, To calculate of project volume & real car volume, To calculate the cooling time of project & cooling time of real car without passenger, To calculate the cooling time of real car with passenger. To calculate the cooling rate of the system, to calculate the system capacity. The results showed that the total cooling time taken 3.96 Minutes found of this backup system for interior of the car with passengers. That’s why we can take decision to use backup Air-conditioning system in vehicle. In automobiles, a Stop-start backup Air-Conditioning system manually shut down the internal combustion Engine to reduce the amount of time the engine spends idling, thereby reducing fuel consumption and emissions. The engine goes off when the vehicle is stationary and back on again when the switch is off. The objective of this thesis is to make effective air-conditioning by using Battery Energy for Backup Air-Conditioning System in Air- Conditioned Vehicle. Brief information and comparisons of different air-conditioning cycle has been presented in this report. By investigating, backup Air-conditioning system saves fuel and reduces the vehicle's emissions by shutting off the engine in situations where the vehicle is not in motion, When use backup Air-conditioning system on the car, the fuel consumption is zero of the Engine with no emission because whereas Engine start is switched off. That is to say no need to start an Engine for using backup Air-conditioning system. During this period all passenger is feel comfort temperature in the interior of the car. Stop-start backup Air-Conditioning system technology is one of the fuel economy car technologies to help reducing 𝐶𝑂ଶ emissions. It plays a key role in the way to achieve emission regulation whilst reducing fuel consumption, and a low temperature heat source can be used to drive the air-conditioning system. The final section of this thesis will be the key component of the backup Air-Conditioning System in Air- Conditioned Vehicle system.