Naslov
Improved drying performance using exhaust heat

Autori
Budin, Rajka ; Mihelić-Bogdanić, Alka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Skup
3rd International symposium on environment

Mjesto i datum
Atena, Grčka, 22.05.2008. - 25.05.2008

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Drying process; optimization; recuperation; recirculation; savings

Sažetak
It is often said that energy costs less to conserve than to purchase. Therefore in presented article is pointed out the possibility of energy saving in selected industrial drying process. After a detailed analyzes of the original drying process configuration the possibilities for a reduction of energy consumption is documented. To identify possible improvement opportunities the energy performance of a simple conventional drying process is analyzed and shown in detail. Because about 30% of the total dryer heat load can be recovered the conventional process is compared with the same using recuperation and recirculation. That two options are used on large scale dryers especially in high energy consuming industries resulting with increasing drying efficiency. Reclaiming heat from the exhaust results with gaseous fuel saving of 28% in recuperative drying process. The fuel consumption is lowered for 24% in proposed recirculative option. Improved efficiency in is also visible from presented calculation with result of about 51% for recuperation and about 49% for recirculation. Except these, energy saving activities resulted also in improvements of the environmental impacts production process. From results follows also that the recuperative drying concept is technical feasible and is capable of achieving a better efficiency compared to simple as well as recirculative systems. The described modifications with the commonly used conventional dryer system make it possible to achieve consistent fuel savings through elimination of exhaust air losses. Implementation of the proposed heat recovery options system has fully confirmed the achieved results described in this paper.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti

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