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Title: Reducing Energy Consumption of ADDIS ABABA Light RAIL Train by using -Controlled ventilation for air Condition
???metadata.dc.contributor.*???: Demiss Alemu (PhD)
Radwan, Ahmed
Keywords: Co2;HAP;CAV;VAV an Air-condition
Issue Date: Jun-2017
Abstract: Rail has been recognized as the most energy efficient and compatible transportation made. In fact, reducing the energy consumption of rail vehicle is a key issue. The Addis Ababa light rail train consumes, in addition to the energy needed for train motion, a share of electricity for comfort purpose. About 20% to 40% of the energy consumed by the vehicle is used for ventilation and air-conditioning. It is known that air-conditioning accounts for the biggest share of comfort energy. . The air-condition controlled by controls the amount of supply outdoor fresh air in a train depending on a number of people. People are the main source of in train or building. In the coach, if a number of passengers in coach is doubled, the level will accordingly double. If one ore few people leave the train, the level of will proportionally decrease. Thus this system saves energy solely by not heating or cooling unnecessary amount of outdoor air. . The main objective of this research is to reduce the energy consumption of the train by using c -operated ventilation for air-conditioning. In order to achieve this precious goal, this paper proposes to use -operated ventilation in order to reduce the energy used for comfort purpose. The energy of -controlled air condition and CAV (conventional system) are simulated and analysed by HAP. While doing this thesis, the weather data are collected from National Metrology Agency and the physical data of the train are gathered from Ethiopia Railway Corporation. Then all data are entered in to the software to run the simulation of the train energy and comparison of CAV (conventional system) and -operated air condition (VAV) has done based energy cost and energy consumption. . The result of train simulation report has shown clearly that -operated air condition consume less energy and is the energy cost effective as compared to CAV ( conventional system). It has shown that this study system saves 8 Mwh per year which means 194 $/yr. Hence it is recommended to Addis Ababa Light Rail Train to apply this economic system.
Appears in Collections:Railway Engineering

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