Abstract
This chapter deals with the solar energy system and waste heat recovery in industrial process. The main aim of this chapter is to describe and evaluate the probability of energy savings at steam pressing process in garment industry. Process input data assembled through process observing are used to establish process efficiency and energy conservation. The possibility of fuel savings using flue gases heat recovery and solar energy as partial substitution for fuel oil can lead to significant energy conservation. Returning boiler flue gases, with satisfying temperature of 204°C to the economizer, to preheat boiler feed water, about 9% fuel can be saved. At same time exhaust temperature lowers from 204°C to 45.9°C. If solar energy use is planning the appropriate meteorological data for selected location (Croatia, Zagreb to = 45,049) should be known. The yearly fuel oil consumption for pressing process in garment industry which becomes 2.03 × 106 kg can be reduced by 50.9% by using solar collector field of 20.8 × 103 m2 and flue gases heat recovery.
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