Chicago 2-11 Alarm 9-11-11

Chicago experienced a commercial fire early Sunday morning at 5614 W. Grand Avenue. Steve Redick and Dan McInerney were on the scene and captured some powerful images of the incident.
Chicago Fire Department commercial building fire 9-11-01

Heavy fire burns through the auto body shop on Grand Avenue. Steve Redick photo

Firefighters use street level deluge guns in a defensive mode to fight the fire Sunday morning. Steve Redick photo

Steve shared his firsthand account of the event:
This morning around 0600, a 2-11 alarm was called for 5614 Grand Ave. It was a one-story commercial building attached to a truss roof auto repair garage. I arrived just a few minutes after the alarm went out, and some of the box companies were still en route. Squad 2 didn’t have a snorkel, and both tower ladders (14 and 23) were in service elsewhere. The fire had already gone through the roof before my first photos, and two separate collapses occurred while I was there. I didn’t capture them on video or photo, but it looked like only the roof came down—no major parapet or wall failures. I wonder if there were fire cuts on the truss ends. I also got some shots of Engine 43 stretching a ground ladder up to the roof of Exposure 2 for a vantage point. Overall, it was an intense and interesting fire. The shift change was happening at the same time, which explains why some firefighters were in various stages of dress. I’ve included a link to a short video with radio traffic from my shoot as well.
Chicago Fire Department commercial building fire 9-11-01

Two tower ladders worked in addition to multiple hand lines and multi-versals. Steve Redick photo

Chicago Fire Department commercial building fire 9-11-01

Engine 68 was the first due engine and had a deck gun and several hand lines flowing. Steve Redick photo

Chicago Fire Department commercial building fire 9-11-01

This image from later in the incident shows the tremendous amount of water that was used to hit the fire. Dan McInerney photo

Dan added:
It was a one-story truss roof auto body shop, roughly 75x100 feet, with fire throughout. The exposure in Sector 2 was another one-story building, about 25x100 feet, also fully involved. These photos are of Engine 117 and Tower 35. I believe Engine 117 had two lines operating off the roof of the building directly west of the exposure. Tower 35 also had their main line positioned on that roof.
Chicago Fire Department commercial building fire 9-11-01

Shot from the rear shows heavy fire burning through the roof. Steve Redick photo

Chicago Fire Department commercial building fire 9-11-01

Firefighters from Engine 117 hoist a hose up a ground ladder to use the roof of a building in Sector 2 to hit the fire. Steve Redick photo

Chicago Fire Department commercial building fire 9-11-01

The 2-story house to the west had two 2-1/2s operating on the roof plus a 2-1/2 and a 1-3/4 out the second floor windows. Dan McInerney photo

More video links, photo galleries, and additional images will be featured in a follow-up article.

Box Heat Exchange Station

A Box Heat Exchange Station, also known as a Prefabricated Heat Exchange Station or Modular Heat Exchange Station, is a compact, pre-assembled unit used for heating, cooling, or heat recovery in district energy systems, HVAC systems, or industrial processes. These stations are designed for easy installation, energy efficiency, and space-saving. Below is a classification of Box Heat Exchange Stations based on their design, function, and application:

1. Based on Function

  • Heating Station:

    • Designed to supply heat to a building or district heating network.

    • Typically includes a heat exchanger, pumps, and control systems.

  • Cooling Station:

    • Used for cooling applications, such as district cooling or industrial processes.

    • Includes chillers, cooling towers, or heat exchangers.

  • Combined Heating and Cooling Station:

    • Provides both heating and cooling capabilities.

    • Often used in systems with seasonal demand changes.

  • Heat Recovery Station:

    • Recovers waste heat from industrial processes or exhaust air.

    • Reuses the recovered heat for other purposes, improving energy efficiency.

      2. Based on Design

      • Compact Modular Station:

        • Prefabricated and pre-assembled in a factory.

        • Easy to transport and install on-site.

        • Ideal for small to medium-sized applications.

      • Skid-Mounted Station:

        • Mounted on a skid or frame for easy mobility.

        • Commonly used in temporary or portable applications.

      • Containerized Station:

        • Housed in a shipping container for protection and portability.

        • Suitable for harsh environments or remote locations.

          3. Based on Heat Source

          • District Heating Station:

            • Connects to a district heating network to supply heat to buildings.

            • Includes heat exchangers, pumps, and control valves.

          • Geothermal Heat Exchange Station:

            • Utilizes geothermal energy as the heat source.

            • Includes ground-source heat pumps and heat exchangers.

          • Solar Thermal Station:

            • Uses solar collectors to capture and transfer heat.

            • Often includes thermal storage systems.

          • Waste Heat Recovery Station:

            • Captures and reuses waste heat from industrial processes or power plants.

              4. Based on Application

              • Residential Heat Exchange Station:

                • Designed for small-scale residential heating or cooling.

                • Compact and energy-efficient.

              • Commercial Heat Exchange Station:

                • Used in office buildings, shopping malls, or hotels.

                • Handles larger heating or cooling loads.

              • Industrial Heat Exchange Station:

                • Designed for industrial processes, such as chemical plants or manufacturing facilities.

                • Often includes robust components for high-temperature or high-pressure applications.

              • District Energy Station:

                • Supplies heating or cooling to an entire district or community.

                  • Water-to-Water Heat Exchange Station:

                    • Transfers heat between two water circuits.

                    • Common in district heating and cooling systems.

                      Includes large-capacity heat exchangers and pumps.

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