Economic and technical feasibility study of a combined-cycle cogeneration system associated with cellulose plants

In this paper, is presented an economical and technical feasibility study of a combined cycle cogeneration system proposed to be used in a pulp plant located in Brazil, where around 95% of country's pulp production is done by the use of Kraft Process. This process allows the use of black liquor and other by-products as fuel. This study is based upon actual data from a pulp plant with a daily production of 1000 tons., that generates part of the energy demanded by the process in a conventional cogeneration system with condensing steam turbine and two extractions. The addition of a gas turbine was studied to compare electricity production level and its related costs between original system and the new one, considering that the former can use industrial by-products and firewood as fuel, when required. Several parameters related to electric generation systems operation and production costs were studied. The use of natural gas in the combined cycle, in comparison with the use of firewood in the conventional system was studied. The advantages of natural gas fuel are highlighted. The surplus availability and the electricity generation costs are presented as a function of pulp and black liquor production.

A techno-economic analysis for MCFC cogeneration system

In this paper, a methodology for the study of a fuel cell cogeneration system and applied to a university campus is developed. The cogeneration system consists of a molten carbonate fuel cell associated to an absorption refrigeration system. The electrical and cold-water demands of the campus are about 1,000 kW and 1,840 kW (at 7°C), respectively. The energy, exergy and economic analyses are presented. This system uses natural gas as the fuel and operates on electric parity. In conclusion, the fuel cell cogeneration system may have an excellent opportunity to strengthen the decentralized energy production in the Brazilian tertiary sector.

Taxation and the architecture of the international economic system

Includes bibliography

La política económica y el sistema de precios = Economic policy and the price system

Publicado separadamente en cada idioma

Racionalización de la estructura institucional y del padrón de reuniones del Sistema de la Comisión Económica para América Latina = Rationalization of the institutional structure and pattern of meetings of the System of the Economic Commission for Latin America

Incluye Bibliografía

Exposición del Sr. Enrique V. Iglesias, Secretario Ejecutivo de la Comisión Económica para América Latina en la VIII Reunión Ordinaria del Consejo Latinoamericano del Sistema Económico Latinoamericano (SELA) = Statement by the Executive Secretary of the Economic Commission for Latin America, Mr. Enrique V. Iglesias, at the Eighth Regular Session of the Latin American Council of the Latin American Economic System (SELA)

En su exposición el Sr. Iglesias se refiere a la gran crisis de los años ochenta y reflexiona sobre las políticas antirrecesivas: la colaboración internacional y la cooperación regional; y sobre el nuevo enfoque del desarrollo latinoamericano.

Caribbean Information System for Economic and Social Planning: CARISPLAN

Includes bibliography

Caribbean Information System for Economic and Social Planning (CARISPLAN): Institution Authority File

Breve reseña del archivo de autoridad de autores institucionales del Sistema de Información para el Caribe en Materia de Planificación Económica y Social.