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FEATURE BOILERS, PUMPS & VALVES


The future starts here: building your foundations before commissioning new equipment


SO, WHAT’S TO KNOW? In summary, shell boilers are the most common but there are many variations out there. And there are also three types of steam to know about – saturated, superheated and flash steam. As a versatile purveyor of energy, the way in which steam is produced and distributed both have a significant impact on its potential performance and economy for the end user. There are also technical materials worth being familiar with, such as steam tables which help provide more detail around the properties of steam at varying pressures. And, while condensate in itself is a much wider topic to comprehend, make sure you have an understanding of the way it is created and should be recycled. Based on all of this, there are a number of key tests that you should consider carrying out such as feedwater treatment, deaeration and storage.


With so many variables to consider in the planning, management and upgrade of steam boilers, it’s important for professionals to have a solid grounding in the “fundamentals of steam”. In turn, this will help to achieve better efficiency and safety. So here, Chris Coleman, Boilerhouse National Specialist, provides some of the principles that should empower plant managers to ask the right questions and to get the right results


R


est assured, it is commonplace for industry understanding of steam


systems to be somewhat limited. This is true across the board, whether your role is to simply ensure your plant is operating safely and efficiently, completely overhaul and plan a new steam system or identify, plan and implement steam and thermal energy efficiency improvements. Nevertheless, it is definitely beneficial to develop a basic understanding of the properties of steam before consulting an expert. Meeting specification, deadlines, budget, safety and regulatory requirements, are but a few considerations that can cause the most accomplished of plant managers a


10 DECEMBER/JANUARY 2019 | FACTORY EQUIPMENT


headache. Not to mention energy efficiency targets and minimising downtime. Until it becomes a priority, much of the valuable background information you once had becomes a distant memory.


STEAM SYSTEMS AT THE CORE Granted, there is a wealth of information available on steam systems and sometimes it can be a minefield to navigate. Therefore, we have identified the core elements that will give you a basic understanding: the different boiler types, how steam is produced into three variants and the condensate loop. Develop your knowledge in these areas and you are already on track to an optimised solution.


Has your facility changed in terms of its requirements? Have there been any technological


developments since the first install?


JUSTIFYING AN UPGRADE Clearly it would not be possible to upgrade a boiler ahead of conducting a full and thorough audit of the existing system. And, as with any piece of equipment in our industry, it will most likely not be a like-for-like for the system that is currently in place. Ask yourself two key questions: Has your facility changed in any way in terms of its requirements? Have there been any technological developments since the first install? By re-acquainting yourself with the


fundamentals of steam, be it through written literature or industry training courses, you can build the requisite knowledge you need to identify areas of improvement so fewer problems or faults need to be dealt with in future.


 We have created a downloadable guide to The Fundamentals of Steam to make your job easier when it comes to upgrading. Download it in your time of need by the following link, or simply print it out so you have it to hand on site: https://sxscom.uk/Fundamentals- of-steam


Spirax Sarco www.spiraxsarco.com T: +44 (0) 1242 521 361


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