Simulation and performance evaluation of CCHP using biomass as fuels

WANG Hairong; LIANG Dong; HUANG Mozhi

doi:10.11949/j.issn.0438-1157.20151135

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Simulation and performance evaluation of CCHP using biomass as fuels

更新时间：2025-12-10

- Simulation and performance evaluation of CCHP using biomass as fuels
- CIESC Journal Issue S2, Pages: 279-286(2015)
- 作者机构：
  
  1. 中山大学工学院,广东,广州,510006
  2. 广东省消防科学技术重点实验室,广东,广州,510006
  3. 广东南油对外服务有限公司,广东,广州,510045
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20151135
  CLC： E09
- Online First：31 August 2015，
  
  Published：31 August 2015
- 稿件说明：
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WANG Hairong, LIANG Dong, HUANG Mozhi. Simulation and performance evaluation of CCHP using biomass as fuels[J]. CIESC Journal, 2015, (S2): 279-286.
DOI：

WANG Hairong, LIANG Dong, HUANG Mozhi. Simulation and performance evaluation of CCHP using biomass as fuels[J]. CIESC Journal, 2015, (S2): 279-286. DOI： 10.11949/j.issn.0438-1157.20151135.

摘要

利用ASPEN PLUS稳态模拟平台测试修正热力参数、流动过程的作用条件

以建立冷热电联供(CCHP)系统的联合循环

研究了系统中关键单元的热功转换过程

以及物流的流率、压力和温度分布

探讨了各输入参数对系统经济、技术和排放性能等的影响。结果表明:(1)预设工况下

燃气轮机进口温度为340℃

系统总能利用率达到94.65%

经济效率达到67.27%

CO2、CO、NO2、NO、SO2排放量分别为0.5 kg·(kW·h)-1、1.025 mg·(kW·h)-1、0.15 g·(kW·h)-1、6 g·(kW·h)-1、3.7 g·(kW·h)-1;(2)随着空气流量的增加

燃气轮机和余热锅炉的排气温度急速下降

总能利用率上升

而相对节能率、当量效率和经济效率不断减小。因此

空气的量应控制在理论空气量的20%~40%之间;(3)随着空气温度及环境温度的升高

燃料的气化率会微小地下降

但系统的总体能效性能会提高。

Abstract

In order to establish the combined-cycle of CCHP (combined cool heat and power) using natural gas and biomass as fuels

a series of thermodynamic parameters and boundary condition has been tested on ASPEN PLUS simulation plat.And the conversion process of thermal and power of the key part in the system have been discussed

as well as the distributions of material flow rate

pressure and temperature in the system.Besides

the effects of the inputting parameters on economic

technical and emission performance have been studied.The results show that the proportion of natural gas and biomass gasification has a very important impact on exhaust temperature and pressure of gas turbine

waste heat boiler.So does the energy gradient.Under certain blend ratio

with the increase in air

exhaust temperature of gas turbine and waste heat boiler will obviously decline.Though the total capacity utilization increases

relatively energy-saving rate

equivalent exergy efficiency and economy exergy efficiency of the system continue to decreases.And

the air temperature and the ambient temperature will result in overall energy efficiency of the system improved.

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