All Answers: Re: [pakgrid] We need to seriously look at Concentrated Solar Power for Pakistan

Thursday 21 March 2013

Re: [pakgrid] We need to seriously look at Concentrated Solar Power for Pakistan

Our search for Sterling engine did not give us encouraging results. Not being an engineer, it seems like Sterling engine is an idea that looks good on paper but challenging to implement.

With Regards
Qasim
pk.linkedin.com/pub/qasim-sheikh/0/250/712
+923008540838 (mob)

From: SALMAN TAHIR <superbsalman@hotmail.com>
To: "pakgrid@yahoogroups.com" <pakgrid@yahoogroups.com>
Cc: "pakgrid@yahoogroups.com" <pakgrid@yahoogroups.com>; "shiraz.shahid@gmail.com" <shiraz.shahid@gmail.com>; "kamran.meer@gmail.com" <kamran.meer@gmail.com>
Sent: Thursday, March 21, 2013 12:56 AM
Subject: Re: [pakgrid] We need to seriously look at Concentrated Solar Power for Pakistan

I have worked on this project and also published its proceedings in conference.
I am capable enough to produce much cheaper electricity with csp.
Just in search of some cheaper sterling engine.
Remaining all control theories and dimensioning is almost ready.

Anybody have suggestions to produce sterling locally or get from somewhere ?

Sent from my iPhone

On 20-Mar-2013, at 10:15 PM, "Qasim Sheikh" <qs358@yahoo.com> wrote:

Shiraz did some cost estimates on this topic. You actually heat up oil with CSP and then heat up cooking oil through a heat exchange. Key issue we faced was cost of land. Agricultural land is expensive. When CSP is used for large plants away from population or agriculture you can use "non productive" land. At cost of agricultural land time for ROI was reaching 10 years. If roof tops of processing plants could be used this time period may come down. We did not factor in the 45% lost farm produce. If you could save one third of farm waste through CSP you increase country's farm output by 15%. That s huge. I think grain is not included in this waste. It is mostly fruits and vegetables.

With Regards
Qasim
pk.linkedin.com/pub/qasim-sheikh/0/250/712
+923008540838 (mob)

From: Kamran Meer <kamran.meer@gmail.com>
To: pakgrid@yahoogroups.com
Sent: Monday, March 18, 2013 9:41 PM
Subject: Re: [pakgrid] We need to seriously look at Concentrated Solar Power for Pakistan

I am wondering how the "tower" which will be the CSP heat concentrator -- I am wondering that if this will not be used to boil water to make steam, then how can the heat in the tower be directed into a food processing plant?

Even if we assume that we build food processing plants near farms, and put a CSP tower on top of each plant, and if we assume that we can somehow transfer the heat in the towers directly into owens to cook food, do we know if utilization of the energy will be greater than 25% (which is the benchmark figure for CSP heat used to convert water to steam)?

I had done some research and found that CSP is not efficient if there is more than one tower at a CSP plant. Only recently, firms are experimenting with 2 towers at a plant/real estate parabolic mirrors site.

Regards,
Kamran

On Mon, Mar 18, 2013 at 3:54 PM, Qasim Sheikh <qs358@yahoo.com> wrote:-

I agree 100% with a small modification. We need CSP for food processing first. Cost of renewable energy increases exponentially if you have to do the following:

Save energy for later use, battery technology is expensive, high tech and price is decreasing very slowly,
Phase transition, converting 100 degree C water to 100 degree C steam absorbs too much energy.
Convert energy form, so going from electricity to thermal or thermal to mechanical etc.
Food processing using CSP avoids almost all three of above bottlenecks. We loose 45% of our farm produce before it reaches dining table. For example potato chips processing or pre cooked spinnach (like Mitchells new line of pre cooked meals) near farm using CSP can be a game changer.

With Regards
Qasim
pk.linkedin.com/pub/qasim-sheikh/0/250/712
+923008540838 (mob)

From: ziaimran <zia.imran@gmail.com>
To: pakgrid@yahoogroups.com
Sent: Monday, March 18, 2013 11:17 AM
Subject: [pakgrid] We need to seriously look at Concentrated Solar Power for Pakistan

CSP (concentrated solar power) is the technology we need in Pakistan. Solar thermal can be largely manufactured in the country without having to import expensive fancy photo-voltic solar panels. This will save a lot of foreign exchange, create jobs and boost manufacturing sector. Anyone in the electricity producing 'Power Corridors' listening? Can we make the right choices?

We can use the space on top of our renowned canal system to both save water evaporation and also use the real estate to install solar trough based CSP systems. That would be very nice. And we have plenty of desert if we do this in south part of the country.

Here is the latest CSP plant that was inaugurated in UAE yesterday.

http://www.nation.com.pk/pakistan-news-newspaper-daily-english-online/business/18-Mar-2013/uae-opens-worlds-largest-csp-solar-power-plant