ADVERTISEMENT

Volume: 5 | Issue: 4

Application of Plume-Cooling Technology To Solve a GTG Impingement Problem: A Case Study

Exhaust plumes from generators, pumps, and compressors aboard offshore platforms pose a hazard to crew and equipment. Mitigation for exhaust-plume impingement has traditionally been achieved by locating the exhaust uptake away from sensitive areas of the platform by use of long horizontal duct runs, by use of a very tall exhaust stack (> 20 m), or by some combination of the two. These solutions result in an exhaust system that is complicated to design and that adds significant weight to the platform. A more practical and weight-efficient alternative exists in the form of plume cooling.

Plume-cooling technology has been in use for more than 40 years on military ships for the purpose of infrared-signature suppression and for the protection of sensitive weapons and communications systems that would otherwise be damaged by hot impinging exhaust gases. The operating principles of a plume cooler for application to the offshore oil industry are the same as for a military ship. The use of a plume cooler allows for a more compact and lightweight exhaust, but, surprisingly, this technology has begun to be applied on offshore platforms only within the past couple of years.

In this paper, the authors present a typical plume-impingement problem aboard an offshore platform—an LM2500 gas-turbine generator that is located centrally in close proximity to the helipad, derrick, and deck crane. By use of computer simulation tools that they have developed for plume-dispersion analyses on military ships, the authors present the predicted impingement impact of the baseline exhaust on areas of interest on the platform and the benefit of applying plume cooling. A comparison is also provided between the plume-cooling solution and the traditional solution of raising the exhaust-stack height, with weight being a main point of comparison.

Read or download the full SPE paper 176309-PA

ADVERTISEMENT


STAY CONNECTED

Don't miss out on the latest technology delivered to your email every two weeks.  Sign up for the OGF newsletter.  If you are not logged in, you will receive a confirmation email that you will need to click on to confirm you want to receive the newsletter.

 

ADVERTISEMENT


MOST POPULAR

ADVERTISEMENT


EXPLORE ARTICLES BY TOPIC

ADVERTISEMENT