Waste Heat Recovery

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Waste Heat Recovery

For most Fuel-fired heating equipment, a large amount of the heat supply is wasted as exhaust or flue gases. In furnaces, air and fuel are combined and burned to generate heat which is transferred to a heating device and its load. When the heat transfer reaches its practical limit, the spent combustion gases are removed from the furnace via flue or stack.

Since these gases hold significant thermal energy, this can be the greatest single heat loss in many systems. Energy efficiency can often be increased by using Waste Heat Recovery systems to capture and use some of the energy in the flue or gas stack. The excess heat that emits from industrial stacks can be reused to reduce greenhouse gas emissions.

"Energy Efficiency and Clean, Renewable Energy will mean a stronger economy, a cleaner environment and a greater independence for America."- Department of Energy

Facts

• The United States could conceivably continue producing the same amount of energy it does not, with half the fossil fuel, by recycling the waste heat from it's factories and electric generating stations.
• Of the 500,000 stacks in the United States, 47,500 of those stacks produce waste heat above 260 degrees Celsius (500 degrees Fahrenheit) which could produce at least 50,000 megawatts of power which is almost half the energy produced by the U.S. nuclear fleet today.
• 69%  of U.S. greenhouse gas emissions come from heat and power production.

Methodology

ATSI will analyze your current energy utilization, and identify potential energy reduction technologies. We can perform mass and energy balances, along with sophisticated simulation modeling to confirm a cost-justification. Our recovery methods include:

• Preheating combustion air
• Steam generation and or water heating
• Load pre-heating

Benefits

• Improving heating system efficiency aids in energy consumption reduction 5% to 30%
• Less heat will be wasted by lowering flue or stack gas temperature in a chimney
• Increasing flame temperatures allows for combustion air pre-heating to heat furnaces more efficiently
• Combustion air pre-heating heats furnaces faster resulting in faster furnace start-up time
• Waste heat used for load pre-heating increases productivity
• Greenhouse gas emissions reduction

Our Solutions

• Feasibility studies
• Engineering Services
• Process improvments
• Project Management
• Construction Management

Industries Served

• Steel
• Copper
• Aluminum
• Nickel
• Ceramic
• Glass
• Food & Beverage
• Automotive
• More

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