Dean's Learning Center

🚰 Understanding Static Suction Lift in Pump Systems 🚰

Ever wondered why your pump system isn't performing as efficiently as it should? The answer might lie in something called static suction lift.
Whether you're managing municipal water supplies or industrial fluid transfer, mastering this concept is key to optimizing your pump's performance and avoiding costly issues like cavitation and pump failure.

🔍 In our latest blog post, we break down:
- What static suction lift is and why it matters
- How to choose the right pump and piping configuration
- Best practices to ensure your system runs smoothly

Don't let technical jargon hold you back! Click the link below to dive into our detailed yet easy-to-understand guide. Your pump system will thank you! 💧🔧

To read more 👉 https://theengineeringguide.com/f/static-suction-lift

Static Suction Lift for Centrifugal Pump. Understanding Static Suction Lift in Pump Systems

Light travels through water by **refraction**, which is the bending of light as it passes from one transparent substance into another. This happens because light changes its speed and direction when it enters a different medium¹².

The amount of refraction depends on the **change in speed** of light and the **angle** of the incident ray². Light slows down more when it enters a denser substance, such as water, and bends more towards the normal line. The normal line is an imaginary line drawn at 90° to the surface of the two substances².

When light travels from water into air, it speeds up and bends away from the normal line². The refractive index of a substance is a measure of how much light slows down and bends in that substance. The higher the refractive index, the more refraction occurs².

Some examples of refractive indices and speeds of light in different substances are:

| Substance | Refractive index | Speed of light in substance (x 1,000,000 m/s) |
|-------------------|---------------------------|----------------------------------------------|
| Air | 1.00 | 300 |
| Water | 1.33 | 226 |
| Glass | 1.5 | 200 |
| Diamond | 2.4 | 125 |

²

Refraction can create interesting effects, such as rainbows, lenses, prisms and mirages²³. Refraction is also important for our vision, as it allows our eyes to focus light onto our retina².

Source:
(1) Refraction of light in water — Science Learning Hub. https://www.sciencelearn.org.nz/images/49-refraction-of-light-in-water.
(2) Refraction of light — Science Learning Hub. https://www.sciencelearn.org.nz/resources/49-refraction-of-light.
(3) Now You See It... Testing Out Light Refraction. https://www.scientificamerican.com/article/now-you-see-it-testing-out-light-refraction/.
(4) Quick Answer: What Happens When Light Travels Through Water. https://bikehike.org/what-happens-when-light-travels-through-water/.
(5) Readings - Light: Refraction of light. https://www1.curriculum.edu.au/sciencepd/readings/ligh_refraction.htm.

What is a Flare System?
• A Flare System is an arrangement of piping and specialized equipment that collects hydrocarbon releases from relief valves, blow down valves, pressure control valves and manual vents and disposes of them by combustion at a remote and safe location
• A gas flare, or flare stack, is a gas combustion device used in industrial plants such as petroleum refineries, chemical plants, natural gas processing plants, andat oil or gas production sites with oil wells, offshore oil and gas rigs/platforms
and landfills
Additionally;
• A well test burner disposes of hydrocarbons during drilling operations either onshore or offshore

Onshore and Offshore Flare Systems
Gas flaring systems are installed on onshore production fields, offshore platforms, on transport ships and in port facilities, at storage tank farms and along distribution pipelines.

🔥🔥🔥🔥So what are the main differences between an onshore(refinery) Flare System and an offshore (platform) Flare System?

The equipment required for both onshore and offshore Flare Systems is essentially the same. However:
• Noise and radiation is more of a problem for an offshore facility due to the closer proximity of personnel
• More space availability for an onshore facility allows flare tips to be located away from the main process site
• Additional space onshore allows for the installation of spare flares if required and the potential use of Ground Flares

Typical components of a Flare System include:
• Pressure safety valves, blowdown and manual vent valves, pressure control valves, tail pipes, sub-headers and headers inside battery limits (ISBL)
• ISBL flare knockout drums (KODs) and pumps
• Outside battery limits (OSBL) main flare headers
• Flare area KODs and pumps
• Liquid seal drums (offshore, KOD’s are generally designed for internal explosion to eliminate the need for a seal drum)
• Molecular or velocity seals
• Header end and emergency gas purge
• Flare risers, tips and associated hardware (fuel gas, ignition, steam or air)
• Associated monitoring and safety systems including infra red monitors

Following are some examples of flare systems
And their characteristics.

Utility Flare Systems

Flow Range: Purge to 1000 MMSCFD
Temperature: -100 to 370 °C
Inlet Pressure Range: 0 to 2 barg
Smokeless Medium: None
Smokeless Range: None
Comparative Radiation at Base: Maximum
Comparative Noise at Base: Lowest
Flow Medium: Gas Only

Air-Assisted Flare Systems

Flow Range: Purge to 1000 MMSCFD
Temperature: -100 to 370 °C
Inlet Pressure Range: 0 to 2 barg
Smokeless Medium: Air (via blowers)
Smokeless Range: Purge to 100%
Comparative Radiation at Base: Lower
Comparative Noise at Base: Medium (blower noise)
Flow Medium: Gas Only

Gas-Assisted Flare Systems

Flow Range: Purge to 1000 MMSCFD
Temperature: -100 to 370 °C
Inlet Pressure Range: 0 to 2 barg
Smokeless Medium: Fuel (natural) gas
Smokeless Range: Purge to 100%
Comparative Radiation at Base: Maximum
Comparative Noise at Base: Loud due to gas injection
Flow Medium: Gas Only

Steam-Assisted Flare Systems

Flow Range: Purge to 1000 MMSCFD
Temperature: -100 to 370 °C
Inlet Pressure Range: 0 to 2 barg
Smokeless Medium: Steam
Smokeless Range: Purge to 100%
Comparative Radiation at Base: Lower
Comparative Noise at Base: Loud due to steam injection
Flow Medium: Gas Only

Fixed Or***ce Sonic Flare Systems

Flow Range: Purge to 1000 MMSCFD
Temperature: -100 to 370 °C
Inlet Pressure Range: 1 to 7 barg
Smokeless Medium: High exit velocity
Smokeless Range: Sonic range only
Comparative Radiation at Base: Lowest
Comparative Noise at Base: High due to high velocity
Flow Medium: Gas Only (with some entrained liquid)

Sonic Variable Exit Area Flare Systems

Flow Range: Purge to 1000 MMSCFD
Temperature: -100 to 370 °C
Inlet Pressure Range: 0 to 7 barg
Smokeless Medium: High exit velocity
Smokeless Range: Pure to 100%
Comparative Radiation at Base: Lowest
Comparative Noise at Base: Loud due to high velocity
Flow Medium: Gas Only (with some entrained liquid

DreamDuo™ Flare Systems

Smokeless performance from purge to peak

Cimarron has released cutting-edge flare technology with the DreamDuo Flare Packages. These flare packages have smokeless performance while handling a wide range of High Pressure (HP) and Low Pressure (LP) gases. The DreamDuo saves utility consumption (assist gas or electricity) by 50% to 90%.

Key Advantages

HP/LP tandem flares 2-in-1
High pressure/Low pressure Dual Tip
Smokeless operation 0-100% range
Lower radiation due to substantially upright flame
Modular design allows change in flare height
Reduced assist medium consumption
D.R.E. efficiencies up to >99%
Dual tip saves site real estate and allows for a single pipe rack
50% to 90% Energy Savings
40 CFR 60.18 Compliant
Reliable & easy to maintain Duraspark retractable pilot

Reference:
https://cimarron.com/environmental-solutions/flare-systems/standard-oil-gas-production-flares/