The feasibility of biomass CHP as an energy and CO₂ source for commercial glasshouses

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• 作者：O.R. Moreton^b ; P.N. Rowley^a ; ^{P.N.Rowley@lboro.ac.uk}
• 关键词：Biomass ; Biofuel ; CHP ; Glasshouse ; Economics ; CO2 recovery
• 刊名：Applied Energy
• 出版年：2012
• 期刊代码：2_03062619
• 类别：pw
• 出版时间：August, 2012
• 卷：96
• 期：Complete
• 页码：339-346
• 文件大小：469 K

摘要

A techno-economic modelling tool has been developed to examine the feasibility of biomass combined heat and power (CHP) technologies to provide the energy and CO₂ demands of commercial horticultural glasshouses. Using the UK as a case study, energy and CO₂ demands of candidate glasshouse installations on an hourly basis are established using both measured and benchmark datasets. Modelled electrical and thermal generation profiles for a number of commercially available small-scale biomass CHP systems of rated outputs of 0.1-5 MW_e are also derived, and the results of their application within the modelling tool to carry out multi-parametric techno-economic analyses for various operational scenarios are presented. The impacts of both capital grant and generation tariff-based support mechanisms upon economic feasibility are investigated, along with that of variations in feedstock fuel prices. Net CO₂ reductions accruing from the implementation of biomass CHP are also assessed. Finally, technical options, marginal costs and sale tariffs for CO₂ recovery and supply are evaluated for specific scenarios. The results indicate that feasibility is very sensitive to the relationship between specific biomass CHP power:heat ratios and their match with glasshouse temporal electrical and thermal energy demand profiles, along with economic factors such as specific levels of capital and tariff-based support. With the utilisation of currently available financial support mechanisms, biomass CHP offers significant promise for realising economically viable significant CO₂ emission reductions in this sector.