文档介绍：ARTICLE IN PRESS
Applied Energy xxx (2008) xxx–xxx
Contents lists available at ScienceDirect
Applied Energy
journal homepage: ate/apenergy
Integration of absorption cooling systems into micro gas turbine trigeneration
systems using biogas: Case study of a sewage treatment plant
Joan Carles Bruno *, Víctor Ortega-López, Alberto Coronas
Universitat Rovira i Virgili, Department of Mechanical Engineering, CREVER, Avda. Països Catalans, 26, 43007 Tarragona, Spain
article info abstract
Article history: Absorption chillers can help to increase the performance of biogas-driven micro gas turbine (MGT)
Received 7 December 2007 cogeneration plants. In this paper we analyse various integrated configurations of several types -
Received in revised form 8 August 2008 mercially available absorption cooling chillers and MGT cogeneration systems driven by biogas. MGTs are
Accepted 15 August 2008
fuelled with biogas and their waste heat is used to drive absorption chillers and other thermal energy
Available online xxxx
users. The chillers considered in this study include single- and double-effect water/LiBr and ammonia/
water chillers. The exhaust gas from the MGT can be used directly to drive the chiller or indirectly to pro-
Keywords:
duce hot water to drive the chiller. In this paper we conduct a case study for an existing sewage treatment
Micro gas turbines
plant. Chilled water is used to reduce humidity in the biogas pre-treatment process and cool bus-
Absorption chillers
Biogas tion air of the MGT. We identify the most interesting integrated configurations for trigeneration systems
Trigeneration that use biogas and micro gas turbines. We analyse these configurations pare them with conven-
Sewage treatment plant tional configurations using operational data from an existing sewage treatment plant. The best configu-
rations are those pletely replace the existing system with a trigeneration plant that uses all the
available biogas and additional natu