Calculation of first-law and second-law-efficiency of a Norwegian combined heat and power facility driven by municipal waste incineration - A case study

被引：37

作者：

Solheimslid, Tore ^{[1
]}

Harneshaug, Hanne Katrin ^{[1
]}

Lummen, Norbert ^{[1
]}

机构：

[1] Bergen Univ Coll, Dept Mech & Marine Engn, N-5020 Bergen, Norway

来源：

ENERGY CONVERSION AND MANAGEMENT | 2015年 / 95卷

关键词：

Municipal waste incineration; Exergy efficiency; Absolute entropy; Chemical exergy; SOLID ORGANIC-COMPOUNDS; EXERGY ANALYSIS; ELEMENTAL COMPOSITION; UNIFIED CORRELATION; PART II; GENERATION; CAPACITY; THERMODYNAMICS; LIQUID; FUELS;

D O I：

10.1016/j.enconman.2015.02.026

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Both first-law and second-law-efficiency of a combined heat and power plant were calculated. The plant is located in Bergen, Norway. Both household and industrial waste is converted into electricity and district heating by incineration. The fictive molecule C6H10O2.41N0.1S0.01 represents the average chemical composition of the waste. The chemical exergy of the waste is calculated in several different ways. Calculations of chemical exergy based on the heating value and entropy change during combustion are compared to direct calculation by means of correlation functions. The results obtained with the different methods are in good agreement. Based on the lower heating value of the waste an energy utilization factor of 40.6% is found for the combined heat and power plant in this case study. Its second-law-efficiency is 17.3%. The effect of moisture in the incinerated waste on the different efficiencies is investigated as well. It appears that analyses of the waste composition seem to underestimate the total moisture in the waste burnt in the incinerators. This in turn underestimates the actual efficiencies and the second law efficiency could be at 20% or more in the presented case. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：149 / 159

页数：11

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