Home / List

What Are The Influence Factors Of Cfb Boiler Bed Temperature

  • Development of Methane and Nitrous Oxide Emission

    2016-11-22 · This study makes use of this distinction to analyze the exhaust gas concentration and fuel of the circulating fluidized bed (CFB) boiler that mainly uses wood biomass, and to develop the emission factors of Methane (CH 4), Nitrous oxide (N 2 O). The fuels used as energy sources in the subject working sites are Wood Chip Fuel (WCF), RDF and Refused Plastic Fuel (RPF) of which heating

    Get a quote
  • Cfb technology used in power plant boiler - SlideShare

    Cfb technology used in power plant boiler 1. CFB technology used in power plant boiler CFB (Circulating Fluidized Bed) can be a relative new technology with the ability to achieve lower emission of pollutants.

    Get a quote
  • Experimental and model investigation on the mass

    2011-8-26 · 3. The bed temperature only has influence on the sulfur reaction. Its influence on CFB flow state, particle abrasion can be neglected. 1. Cell Model To calculate details about the mass balance of CFB reactor, a cell model is introduced as the key part of the mass balance model. The CFB reactor riser (height of 6m and diameter of 0.305m) is divided

    Get a quote
  • ,circulating ratio,,,,,

    2018-10-1 · Through analysis on designing and operating of circulating fluid bed boiler, such as the fluid bed temperature, The paper studies how to determine the medium circulation ratio on principal of heat balance and some influence factors on circulation ratio

    Get a quote
  • Study on Attrition Behavior of CFB Bed Material

    Study on Attrition Behavior of CFB Bed Material During Start-up Process: SUN Bai-zhong 1, TAN Ping 2, WANG Qing 1, LIU Hong-peng 1, LI Shao-hua 1: 1. School of Energy and Power Engineering, Northeast Dianli University, Jilin 132012, China;

    Get a quote
  • Investigation into Maldistribution in a Circulating Fluidized

    Local agglomeration will form, if a drop. defluidized zone exists in a fluidized bed boiler, which The above investigations indicate that knowledge on would extend dramatically in scale and might lead to ces-flow rate maldistribution in a CFB distributor is rather

    Get a quote
  • System Analysis on Supercritical CO2 Power Cycle with

    In this work, an 300 MWe S-CO 2 power cycle with circulating fluidized bed (CFB) oxy-coal combustion was established including air separation unit (ASU), CFB boiler, After that, the influence of several factors, e.g., exhaust flue gas temperature, split ratio in recuperator system and the oxygen supply on the cycle efficiency was

    Get a quote
  • How to Run a Coal Fired Boiler at the Best Efficiency

    Pulverized coal fired boilers the total losses account to about 12 to 14 %. Roughly 50% of the losses can be tuned to the optimum and the other 50 % is governed by fuel properties like hydrogen in fuel, moisture in fuel and ambient air conditions. The main two losses in boiler that can be tuned by operator are carbon loss and dry gas loss.

    Get a quote
  • Development of Methane and Nitrous Oxide Emission

    2012-11-22 · Abstract. This study makes use of this distinction to analyze the exhaust gas concentration and fuel of the circulating fluidized bed (CFB) boiler that mainly uses wood biomass, and to develop the emission factors of Methane (CH 4), Nitrous oxide (N 2 O). The fuels used as energy sources in the subject working sites are Wood Chip Fuel (WCF), RDF and Refused Plastic Fuel (RPF) of which

    Get a quote
  • (PDF) Effect of rapid water-cooling process on

    A rapid water-cooling process to desulfurize high temperature CFB bottom ash was designed for the improvement of poor ash utilization. utilization of circulating fluidized bed boiler ash[J]. Boiler Technology, 2006, 37 Fig. 9 Influence of bottom ash

    Get a quote
  • Multivariable Fuzzy Control of CFB Boiler Combustion

    2013-9-8 · However, the bed temperature will rise when the CFB boiler load increases. Hence, if the boiler-load grown up, the bed temperature can be allowed to fluctuate within a certain range while taking control measure is unnecessary [14]. The main influence factors of the CFB boiler combustion system include the opening of return material valve (μν: %),

    Get a quote
  • Influence of operating parameters on NOitx emissions

    Influence of operating parameters on NO, emissions from a circulating fluidized bed combustor Jiansheng Zhao, John R. Grace, C. Jim Lim, Clive M. H. Brereton and Robert Legros" Department of Chemical Engineering, University of British Columbia, Vancouver, Canada, V6T 124 (Received 25 January 1993; revised 17 November 1993) A parametric study of NO, emissions has been carried out on a 150mm

    Get a quote
  • Influence of Flue Gas Conditions on Mercury Removal by

    2019-8-18 · X-MOL,Industrial & Engineering Chemistry Research——Influence of Flue Gas Conditions on Mercury Removal by Activated Carbon Injection in a Pilot-Scale Circulating Fluidized Bed Combustion System,Tianfang Huang, Yufeng

    Get a quote
  • VALIDITY OF AN EXPERT SYSTEM FOR OIL SHALE-FIRED

    2008-11-26 · Validity of an Expert System for Oil Shale-Fired CFB Boiler Design and Performance Analysis 403 bottom of the furnace, cooled to a certain temperature in the ash cooler and then dumped. The main design parameters and the ultimate analysis of OS are listed in Table 1 and Table 2, respectively. The particle size of OS is in the range of 0–10 mm.

    Get a quote
  • Bench-Scale Investigation of Limestone Size Evolution in a

    2016-8-10 · CFB system. Thus, factors impacting fragmentation and attrition play important roles in the boiler performance. Previous studies have investigated the impact of limestone type and size [2,4,7,10-13], fluidizing gas velocity [6,8,9] and temperature [7,14] on fragmentation.

    Get a quote
  • CFB boiler bed temperature's improved fuzzy control

    Keeping the regular bed temperature is the key point of making the circulating fluidized bed boiler work stably. The difficult part of the CFB bed temperature control system lies in: there are many influence factors, little tunable factors, large time delay, big inertia and strong coupling between bed temperature and the main steam pressure.

    Get a quote
  • Research on the Burnout of Fujian Anthracite in CFB

    Coal property, boiler structural and designing parameters, running parameters of boiler are the main factors which influence the burnout of Fujian anthracite during combustion in CFB boiler.

    Get a quote
  • Cause Analysis and Countermeasures for Non-uniform

    Cause Analysis and Countermeasures for Non-uniform Distribution of Gas-Solid Flows in a 330 MW CFB Boiler: TIAN Jingyuan 1, ZHANG Yi 2, ZHANG Sihai 1, YANG Hairui 2: 1. Ningxia Guohua Ningdong Power Generation Co., Ltd., Yinchuan 750408, China;

    Get a quote
  • Influence Factors Analysis of Hammer Head and

    In this paper, the wear mechanism of harmer head and plate of coal crusher of circulating fluidized boiler(CFB) is researched. In order to extend the life of the hammer head and screen plate, some new design is advanced on material and structures. A practical instance shows that these new design can extend the life of the hammer head and screen plate and improve the working efficiency of coal

    Get a quote
  • Analysis on the Bed Temperature Characteristics of

    The bed temperature auto-control system seldom could be put into service during the operation of large capacity CFBB unit. On the basis of operation data of a commercial 450t/h CFBB, which is the first biggest CFBB made in China, the authors systematically analyze the main factors which influence the changes of bed temperature, such as fuel

    Get a quote