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Philippine Test Case # 1101: What Would You Recommend As An Appropriate RE Power

08/12/2011 4:47 PM

A Metro-Manila Food Factory manufacturing a Product Line of Chocolate Confectioneries, et. al uses Grid Electricity (costing about P1 million/mo @ 1U$:41P) for Light & Water - drawing up from own WaterWell. Consider additional info - Lot Area of 3.5 Hectares; WasteWater Volume of 24CBM/24-hrs (5% "sludge" + 95% aerated treated clear-water discharged into public waterways); 1 Factory Building (GI Roofing, pitched, 134mx22m, N-S orientation) + 2 other buildings (about 70% Factory Roof Area) are all inside this Factory Compound.

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#1

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/12/2011 5:36 PM

I would recommend a variety or RE. One almost always never works well by itself, The wind might be blowing, but the sky is cloudy... or the sun might be shining, but there is no wind. Hydro is always on, as long as it was a good rain season, but even then...

Maybe solar panels on all southern exposed rooftops, a few windmills (if local climate allows) And maybe some waste heat recovery somewhere if you have any waste heat. I dunno...

Actually, I'm making a complete blind stab in the dark. You hit a pet peeve of mine... I made the assumption that RE power = Renewable Energy, but you never actually spelled out the acronym... Maybe you mean Random Energy Power, or perhaps Rudimentary Electrical Power... Just a pet peeve...

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#2
In reply to #1

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/12/2011 5:46 PM

They aren't in the northern hemisphere.

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#3
In reply to #2

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/12/2011 5:51 PM

Doh

I see it now: "Philippine"

OK then... Revise that to say Northern aspect.

<Lurks back into shadows grumbling about Mayonnaise and Metric Nuts>

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#4
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Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/12/2011 7:08 PM

This is for you.[Legend]

I'd like to know what the "Philippine Test Case # 1101" myself.

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#16
In reply to #3

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/15/2011 5:41 PM

Manila, Phillipines

14 degrees 34 minutes NORD

120 degrees 58 minutes Est

Elevation 2m (does it matter?)

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#5
In reply to #1

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/12/2011 11:27 PM

I used RE to mean Renewable Energy. Thanks for your inputs.

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#6

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 12:41 AM

Without some sort of back up it will be very difficult. When a burner fed with ECO stuff is considered RE too, you might get close to the point.

How many hours and what time of the day is the factory running? This is a basic start to point in a certain direction and decisive for your type and size of your storage, if needed.

If you can adapt to the sunny hours it will be a plus to start. In this case you can work with solar energy, combined with a topping burner that also can be used as backup for your steam propelled generator.

More efficiency and less payback time will be the implemental use of parabolic mirror water heaters instead of PV to initiate a steam cycle with regeneration recombination. You will need to bypass it, but will get more profit in the long run. Generating power with a steam turbine is a difficult matter because of the slow start up period. You'll need e.g. a diesel generator too to back this up again.

Using renewables in optimo means live according to the abundance cycle.

However, for a factory this is not evident.

If you fry an egg with your solar system, don't wake up too early or eat your egg later on during the day, this is what I want to say.

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#7
In reply to #6

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 12:47 AM

Target Client operates 24x7.

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#8
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Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 12:52 AM

In this case the target cannot be higher than 1/4 to 1/3. Thus 1million/4.

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#9
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Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 1:11 AM

To be complete: If you target 100% , you will need to oversize your regeneration plant (factor 4-5) and need help from a main power company, that agrees to buy your overproduction during daytime and sells you the remaining needs during evening and night time. They can bypass your topping, what excludes the need of your diesel set. Of course, this solution only works in a start phase: if everyone acts accordingly, producing and selling, the power company will not be able to handle the situation anymore and cannot buffer it anymore.

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#10
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Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 2:17 AM

It will be interesting to know if any one has real experience with concentrated solar power (CSP) (RVZ717 will be pleased with this :-) ) steam power generation done on a small scale like this ; e.g., $/watt, payback period, maintenance etc.

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#13
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Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 5:16 AM

Doesn't work on a small scale, unless some pilot plants have been designed. Steam turbines are not for small generators.

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#14
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Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 9:04 AM

There are already gas turbine engine as small as 30 kw. I wonder what is smallest steam turbine available now, and at what cost, compared with PV now at about USD 2-3 .

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#15
In reply to #14

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 9:42 AM

I meant USD 2-3 per watt

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#11

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 5:00 AM

All of the Philippines lies within the northern hemisphere. (N 14deg 35min approx). Here we point our panels south, but at quite a shallow angle!

I do not to visit Manila often, (I live in the Visayas Region) but my inlaws are there. Apart from the typhoons there is not enough reliably constant wind to produce power on the scale needed. (Unless you were to build a wind farm rather than one or two turbines & were able to store the power). We get plenty of sunny days, but plenty of cloudy ones too...

RE in Manila for commercial premises IMO would be a problem. In other areas of the Philippines (EG Northern Samar) wind power would be quite viable.

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#12

Re: Philippine Test Case # 1101: What would you recommend as an appropriate RE Power

08/13/2011 5:02 AM

Clarification: N 14deg 35min is Manila.

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