Marley / Sigma F Series CoolingTower / Engineering Data: Energy Management

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Cooling towers are usually selected to produce a specific cold water temperature at the higher summertime wet-bulb temperatures. During the remainder of the year, the cooling tower is capable of producing much colder water. Unless your system will benefit from the coldest possible water tempera- ture, you should consider controlling cold water temperatures to higher levels. You’ll also save energy by using such control. For greater insight on cold water temperature control, please read “Cooling Tower Energy and its Management”, Techni- cal Report #H-001A, available from your Marley sales represen- tative or on the web at spxcooling.com.

Always control leaving water temperature by manipulating the quantity of air that the fan moves through the tower. Vary- ing the quantity of water flow is not normally recommended and can be harmful in freezing weather. You can alternately start and stop single-speed motors to maintain water tempera- tures within an acceptable range. However, exceeding a total acceleration time of 30 seconds per hour can overheat the mo- tor, causing the insulation to fail. Limiting the number of motor starts, on the other hand, can produce significant variations in the temperature of the water delivered to the process.

Increased flexibility can simplify your operating procedures and save you money in the long run, both on operation and on maintenance. Here are two of the more popular options.

Two-Speed Motors

Two-speed motors improve operating flexibility by increas- ing the number of potential operating modes. Users in northern climates will find that the tower can carry winter loads at half-speed; reducing fan power requirements by 85+% during that time. Two-speed motors also help to control icing during wintertime operation. See Marley Technical Report #H-003, “Operating CoolingTowers During Freezing Weather,” available from your Marley sales representative or on the web at spxcooling.com.

Normally, two-speed motors are provided in 1800/900 RPM, single winding configuration, which is the least expensive two- speed option. They are also available in other combinations including the more expensive double winding.

Variable Speed Fan

Frequency modulation devices work well on induced draft, propeller fan cooling towers such as the Sigma. However, their design must include the capability to lock out any critical fan speeds and the very low fan speed ranges.

Marley VFD drive systems are designed to combine abso- lute temperature control with ideal energy management. The cooling tower user selects a cold water temperature and the drive system will vary the fan speed to maintain that tempera- ture. Precise temperature control is accomplished with far less stress to the mechanical equipment components. The improved energy management provides fast payback. Indeed, many utilities offer generous rebates for users having installed VFD drives.

CAUTION

The cooling tower must be located at such distance and direction to avoid the possibility of contaminated tower discharge air being drawn into building fresh air intake ducts. The purchaser should obtain the services of a Licensed Professional Engineer or Registered Architect to certify that the location of the tower is in compliance with applicable air pollution, fire, and clean air codes.

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SPX Cooling Technologies FSIG-TS-08A specifications Two-Speed Motors, Variable Speed Fan
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FSIG-TS-08A specifications

SPX Cooling Technologies has established itself as a leader in providing innovative cooling solutions, and the FSIG-TS-08A is a shining example of their engineering excellence. This advanced cooling system is designed for a variety of industrial and commercial applications where efficient heat exchange is crucial for optimal performance.

One of the standout features of the FSIG-TS-08A is its highly efficient heat transfer capabilities. The unit utilizes a corrosion-resistant heat exchanger design that enhances thermal performance while reducing maintenance needs. This is crucial in environments where durability and longevity are paramount. The robust construction of the FSIG-TS-08A ensures that it can withstand harsh operating conditions while maintaining its efficiency over time.

Another key characteristic of the FSIG-TS-08A is its energy-saving capabilities. In an era where energy costs are continually rising, this cooling solution incorporates advanced technologies that optimize energy consumption, leading to significant cost savings. The design includes variable speed fans that automatically adjust their operation based on cooling demand, which minimizes energy usage without sacrificing performance.

Moreover, the FSIG-TS-08A is equipped with a user-friendly control system, allowing operators to easily monitor and manage the unit's performance. The integrated controls provide real-time data on system operation and efficiency, further enhancing operational reliability.

The FSIG-TS-08A also boasts a compact design, making it suitable for installation in spaces where traditional cooling solutions may not fit. Its streamlined footprint does not compromise its cooling capability, making it an ideal choice for a wide range of settings, including manufacturing plants, power generation facilities, and other industrial operations.

In terms of versatility, the FSIG-TS-08A can be customized to meet specific requirements based on the application. This adaptability empowers businesses to leverage the cooling system to meet their unique challenges effectively.

In summary, SPX Cooling Technologies' FSIG-TS-08A is a cutting-edge cooling solution combining efficiency, durability, and flexibility. With its advanced technologies, energy-saving features, and user-friendly controls, the FSIG-TS-08A is well-equipped to meet the demanding needs of today's industrial landscape. It is a testament to SPX's commitment to delivering high-quality, innovative products that help organizations improve their operational efficiency while reducing their environmental footprint.
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