Comments for Energy Efficiency Matters http://www.t2e3.com/blog A blog about generating and using energy more efficienctly Mon, 10 May 2010 17:36:18 -0400 hourly 1 http://wordpress.org/?v=3.1.1 Comment on GHG Impact of Electric Cars by Tina http://www.t2e3.com/blog/2010/05/06/ghg-impact-of-electric-cars/comment-page-1/#comment-201 Tina Mon, 10 May 2010 17:36:18 +0000 http://www.t2e3.com/blog/?p=115#comment-201 Hi Shawn - welcome to the EEM blog! Good points - CO2 per capita would be an interesting statistic. And - how much power generated in state actually is used in the state. Hi Shawn – welcome to the EEM blog!
Good points – CO2 per capita would be an interesting statistic.
And – how much power generated in state actually is used in the state.

]]> Comment on GHG Impact of Electric Cars by Shawn http://www.t2e3.com/blog/2010/05/06/ghg-impact-of-electric-cars/comment-page-1/#comment-200 Shawn Mon, 10 May 2010 03:57:17 +0000 http://www.t2e3.com/blog/?p=115#comment-200 I don't have a lot of faith that electric cars will be readily available until I start seeing more Tesla Automotive vehicles on the road. The breakdown by state was interesting but I would have like to see the volume of CO2 per capita and per square mile. Who cares if Wyoming is totally coal powered if only a few hundred thousand live in the whole state. The local vegetation will absorb it all anyway. California would be a different story all together. I was surprise to see that Illinois was almost half nuclear. Nice job Illinois! I don’t have a lot of faith that electric cars will be readily available until I start seeing more Tesla Automotive vehicles on the road. The breakdown by state was interesting but I would have like to see the volume of CO2 per capita and per square mile. Who cares if Wyoming is totally coal powered if only a few hundred thousand live in the whole state. The local vegetation will absorb it all anyway. California would be a different story all together. I was surprise to see that Illinois was almost half nuclear. Nice job Illinois!

]]> Comment on Fuel Metering! by sivarou http://www.t2e3.com/blog/2009/04/08/fuel_metering/comment-page-1/#comment-199 sivarou Sun, 26 Jul 2009 16:02:03 +0000 http://www.t2e3.com/blog/?p=68#comment-199 Dear Tina, Your reply is definitely an excellent input to begin my research/project. Will contact you soon, for more inputs when needed. Truly apprciate your help and guidance :D Dear Tina,
Your reply is definitely an excellent input to begin my research/project. Will contact you soon, for more inputs when needed.

Truly apprciate your help and guidance :D

]]> Comment on Fuel Metering! by Tina http://www.t2e3.com/blog/2009/04/08/fuel_metering/comment-page-1/#comment-198 Tina Fri, 24 Jul 2009 16:31:47 +0000 http://www.t2e3.com/blog/?p=68#comment-198 Hi Sivarou, It sounds like you have quite a project on your hands. I normally get involved with projects after they already have the metering installed, so I'll have to recommend you talk with some meter suppliers. They should have some knowledgeable engineers that can help you specify and price out some options. They'll also have lots of questions for you: 1. What is the size and type of the piping where you need to meter the flow? 2. Is there sufficient straight run for a meter? You need fully developed flow for accurate metering, so a lot of straight pipe and/or flow conditioners with the meter. 3. Will you want to meter the gas turbine separately from the Boiler/STG? (I would recommend you do.) When selecting a meter, ASME PTC-19.5 "Flow Measurement" also provides a lot of details that you may find useful. [available at http://catalog.asme.org] For fuel metering, you really need to have Flow, Pressure, Temperature and Composition (which requires periodic gas samples or an online gas chromatograph) in order to accurately determine the mass flow and heating value - to get the total heat input to your systems. There is a lot to consider. If you want to talk in more detail, you can contact me direct from http://www.t2e3.com/contact.php Good luck with your project! Hi Sivarou,
It sounds like you have quite a project on your hands.

I normally get involved with projects after they already have the metering installed, so I’ll have to recommend you talk with some meter suppliers. They should have some knowledgeable engineers that can help you specify and price out some options.

They’ll also have lots of questions for you:

1. What is the size and type of the piping where you need to meter the flow?

2. Is there sufficient straight run for a meter? You need fully developed flow for accurate metering, so a lot of straight pipe and/or flow conditioners with the meter.

3. Will you want to meter the gas turbine separately from the Boiler/STG? (I would recommend you do.)

When selecting a meter, ASME PTC-19.5 “Flow Measurement” also provides a lot of details that you may find useful.
[available at http://catalog.asme.org

For fuel metering, you really need to have Flow, Pressure, Temperature and Composition (which requires periodic gas samples or an online gas chromatograph) in order to accurately determine the mass flow and heating value – to get the total heat input to your systems.

There is a lot to consider. If you want to talk in more detail, you can contact me direct from http://www.t2e3.com/contact.php

Good luck with your project!

]]> Comment on Fuel Metering! by sivarou http://www.t2e3.com/blog/2009/04/08/fuel_metering/comment-page-1/#comment-197 sivarou Fri, 24 Jul 2009 12:28:18 +0000 http://www.t2e3.com/blog/?p=68#comment-197 Dear Tina, Need a favour from you as I am about to begin a project at my work place. It is all about capturing data to calculate heat rate for an Open Cycle 110 MW Gas Turbine & 300 MW Steam Turbine where both use natural gas as combustion fuel. At the moment there is no instrumentation, flow meter or whatsoever intalled at the site. Thus, it is a project that must begin from scratch. Could you please advice me on how to go about it? Thanks. Dear Tina,

Need a favour from you as I am about to begin a project at my work place. It is all about capturing data to calculate heat rate for an Open Cycle 110 MW Gas Turbine & 300 MW Steam Turbine where both use natural gas as combustion fuel. At the moment there is no instrumentation, flow meter or whatsoever intalled at the site. Thus, it is a project that must begin from scratch. Could you please advice me on how to go about it? Thanks.

]]> Comment on Performance Monitoring Systems by Tina http://www.t2e3.com/blog/2008/02/08/performance-monitoring-systems/comment-page-1/#comment-8 Tina Thu, 21 Feb 2008 23:28:07 +0000 http://www.t2e3.com/blog/2008/02/08/performance-monitoring-systems/#comment-8 It sounds like you need something that can at least grab the real-time data and archive it... once you have that, the rest is (relatively) easy. I'll poke around and see if I know anyone in your same situation. Or - hopefully - someone will chime in here with some suggestions. -Tina It sounds like you need something that can at least grab the real-time data and archive it… once you have that, the rest is (relatively) easy.

I’ll poke around and see if I know anyone in your same situation. Or – hopefully – someone will chime in here with some suggestions.

-Tina

]]> Comment on Performance Monitoring Systems by rebenstorf http://www.t2e3.com/blog/2008/02/08/performance-monitoring-systems/comment-page-1/#comment-7 rebenstorf Thu, 21 Feb 2008 21:14:21 +0000 http://www.t2e3.com/blog/2008/02/08/performance-monitoring-systems/#comment-7 On four LM6000PC Sprint sites we have the HMI Sequence Control System (SCS) that came with the units but no DCS system. We can view realtime data but there is no historian or data logger. This is pretty much a blank canvas as far as performance monitoring and trending goes. I am wondering what other similar LM6000 users are doing? What products should I be looking at i.e.,(OSIsoft (PI), GE (PowerSmarts), EtaPro and others)? I have built performance monitoring screens for a combined cycle plant and test templates, but that had an Ovation DCS system with historian so that was a much different case. I test this plant biannually with station instrumentation that produces very repeatable results. I currently do not have drill-down capability on individual 4kV BOP rotating equipment, but hopefully that will change in the next 6-months. On four LM6000PC Sprint sites we have the HMI Sequence Control System (SCS) that came with the units but no DCS system. We can view realtime data but there is no historian or data logger. This is pretty much a blank canvas as far as performance monitoring and trending goes. I am wondering what other similar LM6000 users are doing? What products should I be looking at i.e.,(OSIsoft (PI), GE (PowerSmarts), EtaPro and others)?

I have built performance monitoring screens for a combined cycle plant and test templates, but that had an Ovation DCS system with historian so that was a much different case. I test this plant biannually with station instrumentation that produces very repeatable results. I currently do not have drill-down capability on individual 4kV BOP rotating equipment, but hopefully that will change in the next 6-months.

]]> Comment on UW Engineering Mentor Night by Bruce Abbott http://www.t2e3.com/blog/2008/01/31/uw-engineering-mentor-night/comment-page-1/#comment-6 Bruce Abbott Wed, 06 Feb 2008 20:14:03 +0000 http://www.t2e3.com/blog/archives/7#comment-6 I love the quote, Tina; you gotta send it to Brad! Bruce I love the quote, Tina; you gotta send it to Brad!

Bruce

]]> Comment on New Blog by DEC http://www.t2e3.com/blog/2007/10/16/new-blog/comment-page-1/#comment-5 DEC Sun, 27 Jan 2008 02:05:16 +0000 http://www.t2e3.com/blog/archives/3#comment-5 Welcome to the Blogosphere! Welcome to the Blogosphere!

]]> Comment on Welcome 2008! by DEC http://www.t2e3.com/blog/2008/01/25/welcome-2008/comment-page-1/#comment-4 DEC Sun, 27 Jan 2008 01:59:20 +0000 http://www.t2e3.com/blog/archives/4#comment-4 Just my 2 cents - bladeless turbine sounds like fun from a maintenance perspective! Just my 2 cents – bladeless turbine sounds like fun from a maintenance perspective!

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