期刊
ENERGY CONVERSION AND MANAGEMENT
卷 104, 期 -, 页码 100-114出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.enconman.2015.03.082
关键词
Trigeneration; Optimization; Plant lay-out; Sensitivity analysis; Boundary conditions; Dynamic operation
The large potential for energy saving by cogeneration and trigeneration in the building sector is scarcely exploited due to a number of obstacles in making the investments attractive. The analyst often encounters difficulties in identifying optimal design and operation strategies, since a number of factors, either endogenous (i.e. related with the energy load profiles) and exogenous (i.e. related with external conditions like energy prices and support mechanisms), influence the economic viability. In this paper a decision tool is adopted, which represents an upgrade of a software analyzed in previous papers; the tool simultaneously optimizes the plant lay-out, the sizes of the main components and their operation strategy. For a specific building in the hotel sector, a preliminary analysis is performed to identify the most promising plant configuration, in terms of type of cogeneration unit (either microturbine or diesel oil/natural gas-fueled reciprocate engine) and absorption chiller. Then, sensitivity analyses are carried out to investigate the effects induced by: (a) tax exemption for the fuel consumed in efficient cogeneration mode, (b) dynamic behavior of the prime mover and consequent capability to rapidly adjust its load level to follow the energy loads. (C) 2015 Elsevier Ltd. All rights reserved.
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