Sample Projects

You are here: Home › › Services › Engineering › Mechanical Engineering › Sample Projects

Stove Waste Heat Recovery System
Fairfield, Alabama

Project:  FEL3 Engineering on Stove Waste Heat Recovery System

Summary of Scope of Service

ATSI, Inc. provided detailed engineering, procurement, construction support and startup services for the Stove Waste Heat Recovery System on Fairfield No. 8 Blast Furnace.

It was based on an energy study performed by ATSI that determined that a significant energy cost reduction could be realized from installing a waste heat recovery (WHR) system on the Fairfield No. 8 Blast Furnace stoves. This system would reclaim energy from the stove stack and utilize it to reduce stove firing natural gas requirements. Recovery of the stove stack energy via preheating of the firing gas or combustion air reduced the stove firing requirements. Preheating led to high enough flame temperatures to eliminate the need for most, if not all, of the natural gas used for enrichment.

Stove simulation modeling were done to determine the benefits from the WHR system. The stove model runs confirmed that there would be significant energy savings from the WHR system. It was calculated that the annual natural gas reduction would be 929,000 MMBTU. Blast furnace gas consumption would increase by approximately 587,000 MMBTU resulting in a net energy reduction of 342,000 MMBTU.

---

HVAC System Design
Detroit, Michigan

Project:  Blast Furnace “B-2” Rebuild
Features:  Specialized HVAC

Scope of Services Summary

As part of the furnace rebuild project, ATSI provided the HVAC system design for the new Control Building. Due to the harsh environment, the HVAC system selected provides precise control of temperature, humidity, space pressurization, and concentration levels of containments, within the control building. This system maintains a safe environment for both personnel and critical process control equipment. ATSI provided all the design and installation engineering required to install and commission the new HVAC system.

Services Provided

• HVAC system selection and sizing
• Integration of specialized chemical filtration
• Ductwork design and air distribution analysis
• Development of equipment specifications
• Procurement services
• Equipment technical bid evaluations
• Installation drawings
• Construction scope of work
• Installation and commissioning assistance

Refer a Colleague