India's industrial sector, a driver of the country's economic growth, consumes vast amounts of energy, with a substantial portion of this energy dissipated as waste heat. As of 2023, the industrial sector accounts for approximately 42% of India's total energy consumption. The recovery and utilization of this waste heat present a tremendous opportunity for both economic and environmental gains, potentially reducing CO2 emissions by up to 100 million tonnes annually by 2030. In India, industries such as cement, steel, glass, and chemicals, among others, are major consumers of energy and consequently significant generators of waste heat.
Depending on the industrial process, waste heat can range from low-grade (temperatures below 200°C) to high-grade (temperatures above 500°C). In India, industries such as cement and steel often generate high-temperature waste heat, whereas food processing and textile industries produce low to moderate temperature waste heat.
Examples:
The Indian market for waste heat recovery is evolving, with several pilot projects demonstrating the potential for broader implementation. Customized solutions are essential due to the diversity of industrial processes.
Cement Industry
Steel Industry
Power Sector
NTPC Dadri: The National Thermal Power Corporation (NTPC) implemented a waste heat recovery system at the Dadri plant, which resulted in energy savings of about 0.26 TWh annually and a reduction of approximately 0.2 million tons of CO2 emissions.
In India, the industrial sector is a major consumer of energy, accounting for about 40% of the total energy consumption. A substantial portion of this energy, approximately 30-35%, is lost as waste heat. Considering India’s industrial CO2 emissions, which contribute around 25% to the country’s total CO2 emissions (approximately 2.7 billion tons per annum as of recent data), the potential for waste heat recovery becomes evident. Waste heat contributes to around 0.81 billion tons of CO2 emissions annually in India.
|
|