共查询到20条相似文献,搜索用时 187 毫秒
1.
2.
3.
4.
5.
6.
7.
8.
9.
300MW火电机组热经济性实时模型的研究 总被引:1,自引:0,他引:1
以300MW火电机组热力系统为研究对象,根据系统特点,在循环函数的基础上结合等效焓降方法,采用模块化建模思想,建立了火电机组热经济性分析的实时模型。经过实例验证:该模型不仅很好地运用于机组热经济性实时分析,而且对于机组改造和设计的定性分析具有一定的指导意义。 相似文献
10.
通过对国外火电厂典型无除氧器给水口热系统的组成及运行特性介绍,进一步分析了无除氧器热力系统运行的可靠性和经济性。为国内火电厂的优化设计和热力系统的节能改造提供一定的借鉴和帮助。 相似文献
11.
In this paper, the thermal energy storage system of Badaling 1 MW solar power tower plant is modelled from mathematical models for whole of the working conditions using the modular modelling method. This model can accurately simulate the recharge and discharge processes of thermal energy storage system. The dynamic and static characteristics of the thermal energy storage system are analyzed based on the model response curves of the system state parameters that are obtained from different steam flow disturbances. Conclusions of this paper are good references for the design, operating, and control strategy of solar thermal power plant. 相似文献
12.
Jose Luz Silveira Wendell de Queiroz Lamas Celso Eduardo Tuna Iraides Aparecida de Castro Villela Laura Siso Miro 《Renewable & Sustainable Energy Reviews》2012,16(5):2894-2906
This work aims with an approach for cogeneration plants evaluation based on thermoeconomic functional diagram analysis. The second law of thermodynamics is used to develop a methodology to analyse cogeneration systems, based on exergoeconomics evaluation. The thermoeconomic optimisation method developed is applied to allow a better configuration of the cogeneration plant associated to a university hospital. Also ecological efficiency is evaluated. The method was efficient and contributes for thermoeconomics modelling and analysis and can be applied to any sort of thermal system, especially those with combined heat and power in thermal parity. 相似文献
13.
14.
减少燃煤电厂热力系统的工质泄漏,是挖潜增效、降低电厂热损失、提高经济性、节能减排的一项重要工作。通过计算热力系统工质是否平衡,可以来判断泄漏区域,寻找隐性和显性泄漏点,便于及时消缺,提高热效率。介绍了优化后的分段计算热力系统工质平衡的方法。实际应用案例说明,采用分段计算可行有效。 相似文献
15.
16.
超声波技术新应用--真空系统泄漏检测 总被引:1,自引:0,他引:1
火力发电厂真空系统泄漏是一种常见故障,它对电厂的安全生产和经济运行有着重大的影响,因此有方便、准确的检测真空系统泄漏方法显得尤为重要。运用超声波技术提出了检测真空系统泄漏的新方法。通过实践表明,该方法是可行的。 相似文献
17.
根据系统工程的原理,通过专家论证法和德尔菲法构建火电建设工程的多层次综合评价指标体系;应用层次分析法,建立较为完善的火电建设工程综合评价模型和方法,确定火电建设工程综合评价的程序和方法。实际案例计算表明,应用多层次指标体系和多目标综合后评价方法,可以将影响火电建设工程诸多因素定量表达出来,从而确保工程项目后评价的客观性和准确性。本文在火电建设工程的多层次综合评价指标体系的建立、指标权重的确定及模糊综合评价模型的建立等方面进行了探索。 相似文献
18.
1 MW Dahan solar thermal power tower plant is modeled from mathematical models for all of the working conditions using the modular modeling method. The dynamic and static characteristics of the power plant are analyzed based on these models. Response curves of the system state parameters are given for different solar irradiance disturbances. Conclusions in this paper are good references for the design of solar thermal power tower plant. 相似文献
19.
20.
Harun Or Rashid Howlader Hidehito Matayoshi Ahmad Samim Noorzad Cirio Celestino Muarapaz Tomonobu Senjyu 《国际可持续能源杂志》2018,37(5):438-454
This paper presents a smart house-based power system for thermal unit commitment programme. The proposed power system consists of smart houses, renewable energy plants and conventional thermal units. The transmission constraints are considered for the proposed system. The generated power of the large capacity renewable energy plant leads to the violated transmission constraints in the thermal unit commitment programme, therefore, the transmission constraint should be considered. This paper focuses on the optimal operation of the thermal units incorporated with controllable loads such as Electrical Vehicle and Heat Pump water heater of the smart houses. The proposed method is compared with the power flow in thermal units operation without controllable loads and the optimal operation without the transmission constraints. Simulation results show the validation of the proposed method. 相似文献