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Design of Two-Stages Charging of Sensible Thermal Energy Storage

Anis, Azarudeen (2011) Design of Two-Stages Charging of Sensible Thermal Energy Storage. Universiti Teknologi PETRONAS. (Unpublished)

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Abstract

The Gas District Cooling (GDC) plant at Universiti Teknologi PETRONAS (UTP) is responsible for supplying chilled water to the main campus, where it is used as the source of chilled water for air conditioning. Current operations at GDC, electric chillers (EC) are used to charge the Thermal Energy Storage (TES) at night and then discharge the chilled water during the day to support chilled water requirements during peak period. Steam Absorption Chiller (SAC) operation is to supply the chilled water during the day and not during operation at night. However, this practice does not take the advantage of 24 hours operation of gas turbine that produced waste heat. This project is focus on using the SAC to charge the TES tank during night to support EC in order to optimize the use of waste heat. A two-stage charging is proposed. Current configuration is charging the TES tank from 5 p.m. to 7 a.m. only by EC. The proposed wo-stage configuration, the TES tank is charged by SAC as the first stage to cool the chilled water from l3°C to 9°C, then, the second stage is charged by EC to cool the chilled water from 9°C to 6°C. The time of the both charging process is maintained from Sp.m. to 7a.m. The operation of two-stage based on one SAC in operation and three EC's in operation.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Energy - Energy management - Thermal energy storage
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 08 Nov 2013 11:39
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/10378

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