About one third of the whole Italian leather production is concentrated in a small area around Santa Croce sull’Arno (Pisa), where it accounts for most of the local industry. About 300 tanneries globally use 750,000,000 MJ/yr of thermal energy and 42,000 MWh/yr of electricity. We first analyzed the energy expenditure patterns of the three main processes, namely chrome tannage, vegetable tannage and fur dressing; we then estimated that a 10% to 25% energy saving could be obtained by technological updating in the production and use of low enthalpy steam, hot water and warm air for drying. Amortization plans have been drawn under various assumption; the investments required for a global saving of 1800 TEP/yr would pay back at most in three years, which could be reduced by half under existing legislation for promoting energy efficiency. The widespread implementation of electricity and heat cogeneration would afford even greater economies and benefits, which are expounded in the paper
Updating Energy Policies in a Tannery District / Ennio Antonio, Carnevale; Mario, Tucci. - STAMPA. - 1:(1987), pp. 59-70. (Intervento presentato al convegno INNOVATION FOR ENERGY EFFICIENCY CONFERENCE tenutosi a Newcastle U.T. nel September 1987).
Updating Energy Policies in a Tannery District
CARNEVALE, ENNIO ANTONIO;TUCCI, MARIO
1987
Abstract
About one third of the whole Italian leather production is concentrated in a small area around Santa Croce sull’Arno (Pisa), where it accounts for most of the local industry. About 300 tanneries globally use 750,000,000 MJ/yr of thermal energy and 42,000 MWh/yr of electricity. We first analyzed the energy expenditure patterns of the three main processes, namely chrome tannage, vegetable tannage and fur dressing; we then estimated that a 10% to 25% energy saving could be obtained by technological updating in the production and use of low enthalpy steam, hot water and warm air for drying. Amortization plans have been drawn under various assumption; the investments required for a global saving of 1800 TEP/yr would pay back at most in three years, which could be reduced by half under existing legislation for promoting energy efficiency. The widespread implementation of electricity and heat cogeneration would afford even greater economies and benefits, which are expounded in the paper
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