Auxiliary Power Saving In Air Cooled Steam Condenser by Pumps (A Heat Exchanger Used In Steam Power Plant)
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 11
Abstract
Water demand from thermal power plants, mainly for steam condensation (power plant cooling) can place a significant burden on limited local and regional freshwater supplies. An approach to reducing this cooling water demand is the use of direct dry cooling, which requires no consumptive water use and can reduce a power plants water demand by up to 95 percent. Direct dry cooling uses air‐cooled steam condensers which consist of a series of finned, air‐cooled condenser tubes arranged in an A‐frame configuration. Steam is routed from the steam turbine to the condenser, where the heat from the condensing steam is rejected to the environment via the finned tubes. Beneath these condenser tubes is an array of fans, which force a stream of air through the condenser. A major limitation to using this cooling technology is that air‐cooled steam condensers are unable to maintain their performance during very hot and/or windy periods. This directly affects energy production because a reduction in condenser performance creates backpressure on the steam turbine and reduces electricity generation. The whole world is in the grip of energy crisis and the pollution manifesting itself in the spiraling cost of energy and uncomforted due to increase in pollution as well as the depletion of conventional energy resources and increasing curve of pollution elements. To meet these challenges one way is to check growing energy demand but that would show down the economic growth as first step and to develop nonpolluting energy conversion system as second step. It is commonly accepted that the standard of living increases with increasing energy consumption per capita. Any consideration of energy requirement and supply has to take into account the increase conservation measures. On the industrial font, emphasis must be placed on the increased with constant effort to reduce energy consumption. Fundamental changes in the process, production and services can affect considerable energy saving without affecting the overall economy. It need not be over emphasized that in house hold commercial and industrial use of energy has considerable scope in energy saving. Attempt at understanding the integrated relationship between environment and energy have given shape due to development of R-134a, (an non pollutant refrigerant) to emerging discipline of environmental management. The government of India has laid down the policy “it is imperative that we carefully utilize our renewal (i.e., non-decaying) resources of soil water, plant and animal live to sustain our economic development” our exploration or exploitation of these is reflected in soil erosion, salutation, floods and rapid destruction of our forest, floral and wild life resources. The depletion of these resources often tends to be irreversible since bulk of our population depends on these natural. Pumping systems account for nearly 20% of the world’s electrical energy demand and range from 25-50% of the energy usage in certain industrial plant operations (US DOE, 2004). Pumps have two main purposes: Transfer of liquid from one place to another place Circulate liquid around a system.
Authors and Affiliations
Parag Mishra, Dr Manoj Arya
Keywords
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