Analysis of Cooling Loads and their Effects on Energy Costs for an Integrated Insulating Materials-Based Direct Iron Processing Plant

Abstract

This study discusses the surge in energy consumption in the Caribbean region over the past decade, notably in Trinidad, where per capita consumption exceeds 6500 kWh. In response to rising electricity tariffs, energy sector entities are implementing conservation initiatives. The study focuses on a Direct Reduced Iron (DRI) plant in Trinidad's Point Lisas Industrial Estate, specifically examining alternatives to conventional air conditioning in a DRI processing laboratory. Various insulating materials were simulated using CHVAC software and evaluated against a 5-ton air-conditioning unit using the CLTD method. Analysis reveals standalone use of insulating systems in the laboratory is impractical due to orientation, location, and internal heat loads, necessitating a hybrid cooling system. Economically viable configurations involve a 3-ton A/C unit paired with PVC, foam, or fibreglass walls and ceilings. Despite higher initial costs, configurations with a 3-ton unit offer savings in maintenance and electricity. Findings extend beyond the laboratory, potentially influencing passive cooling material adoption and active cooling load reduction in other contexts, thus promoting sustainable energy practices.