Retrofitting project for improved chiller system performance in a hotel, Kuala Lumpur, Malaysia

Razak, Muhammad Aiman (2024) Retrofitting project for improved chiller system performance in a hotel, Kuala Lumpur, Malaysia. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

This thesis addresses the pressing issue of energy inefficiency in commercial buildings, with a specific focus on the hotel industry, by investigating the impact of aging chiller systems. In response to the heightened environmental awareness, this research aims to contribute to sustainable practices through a comprehensive retrofitting project at the Sheraton Imperial Hotel Kuala Lumpur. The objectives include analyzing current chiller system inefficiencies, measuring improvements post-retrofitting, and evaluating economic feasibility. The methodology involves a preliminary energy audit, chiller selection considerations, and financial assessments. The retrofitting initiative, involving the replacement of the aging 19XR chiller with a Carrier 23XRV water-cooled chiller and Variable Frequency Drive (VFD) technology, demonstrates a remarkable 54% improvement in chiller plant efficiency. Financial analyses indicate a profitable venture with an expected annual electricity bill decrease, a payback period of 4.064 years, and a substantial return on investment (ROI) of 25%. The success of this retrofitting project not only establishes the Sheraton Imperial Hotel as a leader in operational excellence and environmental responsibility but also provides valuable insights for similar initiatives in the hospitality sector. Continuous monitoring and future research efforts are recommended to ensure long-term performance improvements and to inspire the adoption of sustainable practices throughout the industry.

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