With such a focus on energy efficiency and carbon footprint it is strange that more s aren’t being installed and used.

Could your clients save money by having a to smooth out peaks and troughs in their demand ?
If you like the idea of having something new to offer your clients, that might save them money, then read on…
If we can establish it is genuinely in your clients interests there is a job in it for you to supply/ install it, one for us to make it and one for David to size it. 
David is the chap that wrote the article below that explains a bit more about the application and benefits of .

Can use this ‘knowhow’ to benefit your clients (oh and for  is all to work together and make / install the odd perhaps ?

Beneath the article is the info you would need to get from your client to get an initial review of the system and if it might benefit from a full review.
David Oakland describes how accumulation can be harnessed to aid plant design and secure higher energy efficiency.
Energy managers are constantly coerced, whether because of legislative environmental directives or simply self-imposed responsibility, to find and implement alternative energy-efficient solutions to reduce their greenhouse gas emissions. The spin-off benefits are lower energy bills and increased bottom line profitability. Compliance with regulation and achieving energy cost reductions have become necessary bed-fellows.
A major concern for the plant designer is, in many cases, the fluctuating nature of the process demand to be met. The demand for from many industrial processes is erratic and step changes in load can have a detrimental effect on production and efficient power generation in the case of combined heat and power plant. However, there is a solution to this problem that not only removes the effect of transient loading completely from the raising or power plant but also improves energy efficiency and reduces operating costs. It is the incorporation of a ‘’ into the supply system. accumulation is a long established but too often forgotten technology that, if correctly applied, can continue to be of great benefit to enhancing the design and performance of plant and cogeneration in the modern house.
What can accumulation achieve?

Imagine a able to reach a ‘peak’ demand ten times higher than its rated output. Consider that two out of a bank of three s might be eliminated and still allow the remaining to reach the same ‘peak’.
Contemplate maintaining a low-pressure supply while diverting output to critical high-pressure consumers. These are just three examples of the many application possibilities for accumulation.

The purpose of a is to provide the means to convert an irregular process demand into a steady load. The potential benefits are numerous, the primary one being significantly lower energy costs through increased operating efficiency. Additionally, it can provide immediate response to the demand, a secure supply at constant pressure,Btemperature and dryness, and will eliminate priming high and low water lock-outs due to wide load swings. It can also assure product quality and – where new or power plant is required – result in lower capital costs. Crucially, it can achieve all this while reducing environmentalBpollution.

So what exactly is accumulation? In short, it is the storage (in a ) of surplus produced at times of low demand forBsubsequent release to supplement the output of the at times of high demand. Any industrial manufacturing process having a variable demand for and where an effective differential exists between and process pressures can benefit from this energy efficient technology.
How do work?
Water is used as the heat storage medium. The reason becomes evident when the greater heat storage capacity of water is compared with that of the same volume of vapour at any given state of temperature and pressure. Most work on the ‘pressure-drop’ principle, whereby from the or waste heat generator is charged at high pressure into the water causing a rise in temperature (and pressure) and for process is discharged from the water (as ‘flash’) at low pressure to meet the demand.
The size of the depends on the difference in pressure raised in the and that of the pressure required by the process, and the amount of storage required. can range in size from 1m3 to 150m3 in volume (and more), or be a multiple of vessels to achieve the required storage volume.
What industries can benefit?
is an essential commodity for many industrial processes. TheBtechnology can be successfully applied to any manufacturing process where is used for batch processing or at highly fluctuating rates. These conditions can be found in food production, canning, distilling and brewing, chemical manufacture, textiles, rubber, paper and board, plastics, pharmaceuticals, steel making, laundries, ammunitions, brick and concrete curing, turbine testing, tyre manufacture, combined heat and power. The list is endless!
When it comes to the energy saving economics, the most important energy cost savings to be gained from accumulation derive from a reduction in the output in combination with load stabilisation. In all cases, there are prospects for energy savings emanating from: the elimination of excess generating capacity and part-loading that causes a low load factor, the removal of a rapidly fluctuating demand and idle live capacity that increases standing heat and power losses. Therefore the possibility of a meeting a fluctuating demand with a smaller operated at a higher load factor and at constant output with higher efficiency is real.
Expectations on energy savings will vary depending upon individual circumstances and as such, predictions on these and operational gains can only be generalised. However, a conservative expectation of improved combustion efficiency for a modern and burner equipment using the latest control methods could be between 2 to 4%, and potentially higher for older plant. The necessary data from which to obtain the required information will likely be readily obtainable from the existing energy management system but with older plants where scant information is available, the addition of the necessary temporary or permanent instrumentation could easily be acquired.

Standing heat and power losses resulting from excess online generating capacity could equate to a further 1 to 3% of maximum rating again depending on the type and age of the . Where a is of large refractory construction, savings on maintenance could have an even greater impact on the case for investment.

Operational gains
Fewer s online-operated under steady load conditions would lead to less wear and tear and as a result, lower maintenance costs. The potential for labour and material cost savings may be easily examined but it’s safe to say that a reduction in operating costs would contribute greatly to the decision to invest in the technology of accumulation.

Basic information required to enable an initial assessment of the potential for accumulation:
1) Industry type;
2) No of s
3) Size of s , primary fuel etc; 
4) Pressure (HP);
5) Type of processes operated (HP and LP);
6) Process pressure required (LP);
7) Brief description of demand, eg. peak demand profile (LP and HP if

applicable), peak rate, time duration, repeat cycle time etc (a graphical

depiction/chart recording would be ideal);
8) A brief description of the ‘problem’ or why a is

thought to be a possible solution;
9) Sketch of plant and layout processes would also be very handy

David’s article was published here: http://www.engineerlive.com/content/-accumulating-interest

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