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Small-Scale Industrial Cogeneration: Design Using Reciprocating Engines and Absorption Chillers
Abstract
This paper describes a packaged cogeneration system
designed for light industrial applications (i.e.,
situations where a user wants a maximum of 1 MW of
cogenerated electricity). The design employs reciprocating
engines fueled with natural gas or liquid
fuels. Waste heat from the engine exhaust and jacket
water is used to drive an absorption chiller. This
approach yields a variety of unique advantages,
including: (1) ability to satisfy the needs of facilities
that have a low ratio of thermal-to-electric
energy needs, and which have significant refrigeration
loads, and (2) the ability to provide greater
operating efficiency in the <1 MW size range, especially
at part load, when compared to systems based
on gas turbines or steam turbines.
Although component substitution can be used to vary
the energy output capabilities of the system, the
discussion focuses on a unit having an electrical
rating of 418 kW and cooling capacity of 160 tons.
This paper discusses component selection, operating
parameters, economics, maintenance issues, and other
factors.
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Citation
Wagner, J. R. (1985). Small-Scale Industrial Cogeneration: Design Using Reciprocating Engines and Absorption Chillers. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /93100.