This is the second webinar in a series of complimentary webinars, co-sponsored by the US DOE Midwest CHP Technical Assistance Partnerships (RAC) and the Midwest Cogeneration Association (MCA) and focused on bringing the best practices and technical information to existing and potential users of CHP / Cogeneration systems that will assist users in determining and implementing effective efficiency and O&M strategies.
Cogeneration and combined heat & power (CHP) systems can be the most efficient options for simultaneous production of electricity and thermal energy and are thus, good for minimizing fuel consumption and air emissions. Most large cogeneration/CHP systems use gas turbines. The capacities and other characteristics of all gas turbines are rated at the ambient air conditions of 59oF, 60% relative humidity at sea level. When the weather becomes hot, the demand for electric power increases, primarily because of the increased load of air conditioners. When the demand for electric power is high, the market price of electric energy for industrial, commercial and institutional also increases. Unfortunately, just when the electric power demand and electric energy prices are high, the electric power output of gas turbines could decrease by as much as 35 percent of the rated capacity. In addition, the energy efficiency of the gas turbine could also decrease by as much a 15 percent of the rated capacity.
Turbine inlet cooling (TIC) is used to minimize the detrimental impacts of hot weather on the performance of cogeneration/CHP systems that use gas turbines. Many TIC technologies are commercially available: wetted-media, fogging, chillers (mechanical and absorption), thermal energy storage and wet compression. This webinar described all of these technologies, their pros and cons, economics and applications for optimizing cogeneration systems.
The following information is available from this webinars: Brief Information (84KB PDF), Video and Audio Files (33 MB ZIP), PDF Files of Introduction Presentation (2MB) and Feature Presentation (1MB), and Audio File Only (9MB MP3) are available.