Analysis and Evaluation for Optimizing Energy Efficiency in District CoolingSystems: Measurement & Control Strategies at District Cooling Plant and distribution Network: A Case Study, GIFT City, Gujarat, India.

Abstract

Under the direction of the Gujarat government, the first District Cooling System (DCS) in India was created at Gujarat International Finance Tech-City (GIFT City). Encompassing an expansive 886-acre expanse, GIFT City’s meticulously crafted urban infrastructure comprises a projected aggregate built- up area of 5.76 million square meters, encompassing a diverse array of facilities including commercial, residential, and communal structures such as hotels, clubs, malls, and schools [1].

The District Cooling System (DCS) deployed within GIFT City is engineered to proficiently manage a cumulative air conditioning demand of 270,000 refrigeration tons (RT) utilizing a reduced 180,000 RT capacity of chillers. Each cooling plant is strategically outfitted with stratified thermal energy storage tanks that employ chilled water[1], [2].

This review paper examines the integration of advanced control systems with measurements within district cooling plants and their associated distribution networks at GIFT City as a means to achieve substantial energy savings. Through case studies, simulation models, and performance evaluations, the study demonstrates the effectiveness of real-time monitoring, predictive algorithms, and demand- based control strategies. The research gap findings highlight the potential of measurements and control system integration to optimize cooling production, distribution, and consumption and measurements through metering leading to both economic benefits and reduced environmental impact.