The market for liquefied natural gas (LNG) is booming. International LNG trade is expected to exceed $120 billion this year, making it second only to oil as the most valuable world commodity, according to Goldman Sachs Group.
Demand for the product positions the United States – with its abundant natural gas — nicely to build an LNG export market. This is a big switch from a decade ago when the U.S. was experiencing tight energy supplies and thought by now it would rely on foreign LNG imports.
As a result of the industry shift, we are seeing keen market interest in development of liquefaction plants in the U.S. (and other parts of the world). The nation now has plants under construction to produce 44.1 million tons per annum (MTPA) of LNG and has proposed an additional 268 MTPA of capacity.
LNG plants can cost in excess of $8 billion to site, develop and build. So efforts are underway to make these new plants as cost-effective as possible – which is one of the reasons why the LNG industry is examining Turbine Inlet Air Chilling (TIAC).
This paper was delivered at Power-Gen International, December 2015.
Power demand is often greatest at the extreme temperatures due to an inherent desire (or required need) to maintain a steady, comfortable condition. The additional energy required to offset extreme ambient conditions, whether running an air conditioner or a heater, creates additional power demand. Unfortunately, a combustion turbine performance is highly sensitive to ambient air conditions and thus extreme hot and cold temperatures negatively impacts a generating unit’s performance and operation. Coil-based inlet air-conditioning systems are designed and operated to counteract these challenging conditions and maintain a combustion turbine performance and reliability throughout the ambient temperature range.