Archive for April, 2011

Super critical coal power plant to come up in Malaysia

Posted by on Wednesday, 6 April, 2011

Alstom to set up a 650 million euros, super critical  power generation equipment for a coal-fired power plant that will create enough electricity for nearly 2 million households in Malaysia.

The project is worth about US $ 1.4 b in total.

Alstom signed the contract with TNB Janamanjung Sdn Bhd to equip what it called southeast Asia’s first 1,000 megawatt supercritical coal-fired plant in Manjung. Supercritical plants operate at higher temperatures than normal coal-fired plants.

The high temperature increases the presure at which they operate, which in turns improves their efficiency, increasing the amount of power output and decreasing emissions per unit of fuel burned.

The development of coal fired supercritical power plant technology is best  described as an evolutionary advancement towards greater power output per unit and higher efficiency. Energy conversion efficiency of steam turbine cycle can be improved by increasing the main steam pressure and temperature.

Supercritical steam conditions are primarily attached to lower electricity costs through improved fuel economy, and with a modest increase in investments and high availability a sound economy of the concept is guaranteed.

As the  name super critical power plant,  suggests, coal-fired supercritical power plants operate at very high temperature and pressure (580 degree centigrade temp. with a pressure of 23 MPa) resulting much higher heat efficiencies (46%), as compare to sub-critical coal-fired plants which operates at 455 degree centigrade temp., and efficiency of within 40%. Some of the benefits of advanced supercritical power plants include:

(a) Reduced fuel costs due to improved plant efficiency;

(b) Significant improvement of environment by reduction in CO2 emissions;

(c) Plant costs comparable with sub-critical technology and less than other clean coal technologies;

(d) Much reduced NOx, SOx and particulate emissions;

(e) Can be fully integrated with appropriate CO2 capture technology

“Supercritical” is a thermodynamic expression describing the state of a substance where there is no clear distinction between the liquid and the gaseous phase.

Water reaches this state at a pressure above 22.1 MPa. The efficiency of the thermodynamic process of a coal-fired power describes how much of the energy that is fed into the cycle is converted into electrical energy. The higher the output of electrical energy for a given amount of energy input, the greater the efficiency. If the energy input to the cycle is kept at a constant, the output can be increased by selecting elevated pressures and temperatures for the water-steam cycle.

Increased thermal efficiency observed when the temperature and pressure of the steam isincreased. By raising the temperature from 580 °C to 760 °C and the pressure out of thehigh pressure feed-water pump from 33 MPa to 42 MPa, the thermal efficiency improvesby about 4% (Ultra-supercritical steam condition).

Current designs of supercritical plants have installation costs that are only 2% higher than those of sub-critical plants. Fuel costs are considerably lower due to the increased efficiency and operating costs are at the same level as sub-critical plants. Specific installation cost i.e. the cost per megawatt (MW) decreases with increased plant size. This plant concept fulfils the requirement to balance reliable power supply, sustainable use of existing resources and economic operation.

Alstom signed the contract with TNB Janamanjung Sdn Bhd to equip what it called southeast Asia’s first 1,000 megawatt supercritical coal-fired plant in Manjung. Supercritical plants operate at higher temperatures than normal coal-fired plants.

The plant is expected to come online in 2015, Alstom added in a statement on Monday.

TNB Janamanjung is a unit of Malaysia’s state-controlled Tenega Nasional power generation, transmission and distribution company.

 


Carbon Capture and Storage Events

Posted by on Friday, 1 April, 2011
The Second International Forum on Transportation of Co2 by Pipeline:

The Second International Forum on Transportation of Co2 by pipeline (22 – 23 June 2011) is organized by Tiratsoo Technical and Clarion in Newcastle, UK.

This international forum will come at the issues from these six technical perspectives:

  • State of the Art
  • Economics
  • Materials
  • Regulations and Risk Assessment
  • Hydraulic Modelling
  • Operations and Maintenance

Organising Committee:

Professor Martin Downie, Newcastle University

Dr Julia Race, Newcastle University

Patricia Seevam, BP

John Tiratsoo, Tiratsoo Technical

For registration https://www.clarion.org/CO2/CO2_jun11/registration.php

 

Carbon management for power plants 2011:

Carbon Management Power Plants 2011 (June 28-29, San Francisco, USA) will bring together SVPs, VPs and Directors from leading power plant operators around the world to address regulatory uncertainty around carbon emissions and explain how to apply newly commercialized technologies including CCS technologies.

Leading utility companies at the event will be providing the following solutions:

Regulation Focus: Hear how EPA regulation on current and future regulatory framework in the US and the rest of the world specific to carbon emissions for power plants and understand what the risk will be for companies who do not comply

Partnership Opportunities: Identifying opportunities for power plant operators and other companies to form partnerships in making the initial investment in carbon reduction technologies and understand the risks involved if operators fail to meet forthcoming regulation

Carbon Capture Technologies: Hear case studies evaluating cutting edge technologies in real life power plants and using this information to determine the commercial viability of using CCS to comply with regulatory demands and provide a realistic projection of when these technologies will be commercially viable

IGCC Technologies: Understanding the latest IGCC technologies and the associated costs to determine a timeframe for commercialization and their ability to meet carbon emission standards

Oxy – Combustion Technologies: Presenting the most up-to-date findings on oxy-combustion technologies to determine if it is technically feasible and cost competitive

Storage Technologies: Assessing the technical feasibility of storing carbon underground and the safety issues and pending liabilities surrounding it

Underground Coal Gasification: Evaluating UCG in combination with CCS to determine how effective it is to meet carbon emissions from power plants

Retrofitting Coal Based Power Plants: Assessing the cost drivers of implementing technology in an existing coal plant and examining the potential scale up and associated costs

Energy Efficiency in Power Plants: Hear case studies on how operation, maintenance and design of a power plant can impact energy efficiency

Carbon Offsets and Status of Carbon markets in US: Evaluating opportunities and strategies in the carbon offset market and understanding the current status of carbon markets in the US

Carbon Monitoring & Accounting: Develop best practice strategies for accounting and reporting carbon accurately to ensure compliance with regulation

http://www.carbon-management-power-plants.com/

 

Carbon Capture and Storage – The Leading Edge:

The 2 – day seminar carbon capture and storage – the leading edge is organized by Institution of Mechanical Engineers, London on 19 – 20 October 2011. This seminar will present on the leading edge of carbon capture technology. Key industry leaders will cover the latest position and the implications across the regulatory, financial and process technology spectra.

The following areas will be covered:

  • The Implications of the Electricity Market Reform on CCS projects
  • An update on the legal issues surrounding the developing market
  • Have the latest EU & UK Government decisions been more encouraging to CCS
  • CCS is not just an energy process it is also a means of industrial capture of CO2 (carbon recycling)
  • How do the various energy production platforms deliver on energy security and  environmental friendliness
  • How good design can make CCS as safe as any other process option
  • The properties of CO2, by-products such as amines and contaminants
  • The EU competition
  • An update for the leading edge projects across the globe
  • FEED Case Studies, especially related to capture technologies

To register: http://events.imeche.org/EventView.aspx?code=S1606