Internal Data Search by Process
FGD increases particulate emissions in one study
This is an 8-year old study showing increases in particulate emission through the FGD. The U.S. experience is that well operated FGD systems aid in particulate reduction and that condensibles are not increased but that they can occur in the stack and be measured by the PM monitor rather than forming after they leave the stack.
Revision Date: 7/25/2019
Tags: Emissions Reduction
Biomass reburn for NOx reduction
Biomass reburn has the advantage of net CO2 reduction as well as reducing NOx. This is an 8-year old study, but we will pursue the authors for any updates.
Revision Date: 7/25/2019
Tags: Emissions Reduction
Older review of India particulate and FGD options
This article is several years old but has some current value. Precip upgrades are needed. For example; NTPC Rihand, whose performance is good (gross efficiency of 36 per cent), is upgrading its 25-year-old ESP to meet PM norms of 50 mg/ Nm3. It is installing advanced moving electrode electrostatic precipitator technology in two fields (the remaining four fields in the middle will remain fixed-electrode type) of the ESP. This technology is expected to reduce emissions from around 400-500 mg/ Nm3 to 50 mg/ Nm3. Relative to FGD Major power equipment manufacturing firms have signed patent agreements for SO2 emission control technologies. Thermax has signed partnership with Marsulex, ISGEC Heavy Engineering Company Pvt Ltd with Amec Foster Wheeler, and Bharat Heavy Electricals Ltd. (BHEL) with Mitsubishi Hitachi etc. Domestic companies like Transparent Technologies Pvt Ltd have developed indigenous technologies for SOx, however, they have limited experience of larger installations, NOx and PM control technology and are mostly indigenous.
Revision Date: 7/24/2019
Tags: 221112 - Fossil Fuel 化石燃料, Electrostatic Precipitator, Technology, Emissions Reduction, Upgrade, India
Opportunities for Data Analytics in Power Generation
Data science is defined as machine learning. One use is in Data Analytics which has four steps 1. Descriptive analytics ( what happened) 2. Diagnotic analytics (why did it happen) 3. Predictive Analytics ( when will it happen) 4. Prescriptive Analytics ( what should I do about it). Prognostics ( a combination of diagnostic and predictive analytics can be used to predict the time at which a system or a component will no longer perform its intended function . This is a challenge since most failures are random and not age relaed. It is important because of the cost of failure. Bearing Failures in Rotating Equipment cause $240B in downtime and repair costs. A combination of physics and data based models can be beneficially used for calculations of remaining useful life ( RUL) . The conclusions of the presentation are 1.Data analytics can help operators manage and improve reliability of generation assets. 2 Prognostics can be used to determine a RUL with a time element and confidence level. 3 Operators can use the RUL to actively manage maintenance schedule and operating conditions in order to maintain reliability. Data Analytics is a also applicable to efficiency ( fuel cost, capacity output) , emissions ( compliance and optimization ) , flexibility ( operational and economic).
Revision Date: 7/18/2016
Tags: XMPL Energy, Pumps, Software, Valves, Optimization, Emissions Reduction, Combustion Optimization, Gas Turbine Protection
Highlights of hot topic hour on activated carbon, bromine and other technologies for reducing mercury from combustion sources.
Revision Date: 8/20/2015
Tags: McIlvaine, Mercury Removal, Emissions Reduction