一种新型的燃气轮机进气冷却装置

介绍了美国唐纳森公司的蒸发冷却装置用于燃气轮机进气冷却的情况。     

一种新型的燃气轮机进气冷却装置

介绍了美国唐纳森公司的蒸发冷却装置用于燃气轮机进气冷却的情况。     

燃气轮机进气蒸发冷却装置经济效益的论证

介绍美国唐纳森公司生产的蒸发冷却装置应用于251B11燃气轮发电机组中，对提高燃气轮发电机组及联合循环发电机组输出功率和热效率及对提高燃机电厂发电生产的经济效益的作用。     

广东地区电站燃气轮机进气冷却潜力的初步分析

分析了燃气轮机进气蒸发式冷却的热力学特点，由此导出燃气轮机进气冷却潜力的概念。结合广东典型地区气象特点，初步分析了广东地区电站燃气轮机进气实施蒸发冷却的潜力。     

Maisotsenko循环在燃气轮机进气冷却中的应用研究

采用基于Maisotsenko循环的露点间接蒸发式冷却作为进气冷却的手段,研究了不同环境条件下其对燃气轮机性能的提升效果。建立了针对某9E级燃气轮机的热力循环过程的计算模型,并利用该热力模型分析了进气温度变化对燃机出力的影响。基于Maisotsenko循环的原理,以温降为指标对露点间接蒸发冷却器的性能进行了分析。以功率和效率作为指标,对燃气轮机性能随环境条件的变化情况做了数值模拟,对露点蒸发式冷却与无进气冷却、直接喷雾式冷却对燃机性能的影响进行了计算分析。结果表明,在高温低湿度的条件下,露点间接蒸发式冷却能有效提升燃机性能。     

燃气轮机进气喷雾蒸发冷却的经济性分析

以轮南燃气轮机电站喷雾蒸发冷却器为例,分析了在不同气候条件下蒸发冷却器运行的经济性。结果表明,对于联网运行机组,蒸发冷却器的投运可提高燃气轮机出力,从而获得经济效益,在高温干燥地区尤为突出,且机组在保持T5温度(燃气轮机第三级透平喷嘴入口处温度)不变的情况下投运所带来的经济效益更为明显。     

燃气轮机进气雾化式蒸发冷却控制技术研究

大气环境温度对燃气轮机性能的影响很大,加装燃气轮机进气雾化冷却系统对改善燃气轮机性能具有很高的实用价值.通过对燃气轮机进气雾化冷却工作原理的分析,提出了一种基于PLC的燃气轮机进气雾化冷却控制系统的设计方案以及功能实现.运行结果表明,该控制系统自动化程度高,工作稳定性好,性能可靠.配置控制系统的燃气轮机进气雾化式冷却撬体投运后,PG6551(B)型燃气轮机功率相对增加8.35%,效率相对提高3.24%.     

燃气轮机进气冷却技术发展现状及前景分析

分析了燃气轮机进气冷却的必要性，介绍了国内外目前应用的几种燃气轮机进气冷却技术的发展现状，分析了各自特点并对发展前景进行了展望。     

回热燃气轮机余热利用进气冷却的研究

本文研究了利用余热制冷进气冷却的回热燃气轮机系统,并对该系统性能进行了模拟计算,得到了压比、流量比等参数对系统性能的影响规律。并通过与常规回热循环比较,指出利用余热制冷来进气冷却的方式能使系统效率提高11%,是提高燃气轮机系统性能的有效途径之一。     

燃气轮机进气制冷技术

本文根据燃气轮机性能曲线,利用余热锅炉后的剩余余热,作为溴化锂制冷机组的热源,对燃机进气进行冷却,达到增大出力、降低能耗的双重效益。     

燃气轮机空气过滤器的选型对比分析

介绍了GDX自清式过滤器的性能及使用情况。     

燃气轮机进气蓄冰冷却系统的运行优化

燃气轮机的输出功率受环境温度的影响,对燃气轮机的进口空气进行冷却,能提高其输出功率。当前工程中采用的是在夜间用电低谷期制冰蓄冷,白天用电高峰期融冰供冷保证最大出力的运行方式。本文在采用冰蓄冷的基础上,引入时间变量建立燃料消耗最少的积分型性能指标,在时变环境的意义下,对燃气轮机进气蓄冰冷却系统提出基于用户负荷和环境温度预测曲线的新的运行优化方式,并考虑负荷预测的不确定。通过建模仿真表明这一技术可行,具有进一步研究的价值。     

On the technical feasibility of gas turbine inlet air cooling utilizing thermal energy storage

The potential of using thermal energy storage (TES) in the form of ice or chilled water to cool gas turbine inlet air is evaluated for a remote oil field location in the Sultanate of Oman using local hourly typical meteorological year weather data. It is found that under the conditions investigated seasonal TES in chilled water storage tanks or ice bins for the location considered is prohibitively expensive and thus not recommended. Application of partial TES option shows that the cool storage does not result in any noticeable reduction in the chiller size. Hence, TES whether seasonal, partial, or full storage is not a viable option for the considered location, especially in the absence of time‐of‐use utility rate structure. Copyright © 2005 John Wiley & Sons, Ltd.     

板翅式换热器在燃气轮机进气冷却系统中的应用

将板翅式换热器应用于吸收式燃气轮机进气冷却系统中，降低燃气轮机压缩机进口温度，提高燃气轮机高温条件下的出力，在国内尚无先例。针对板翅式换热器，简要介绍了结构、布置形式和性能。通过实测的运行数据，对板翅式换热器和管式换热器的性能进行了对比。结果表明：板翅式换热器在传热系数、体积、进气阻力等方面，性能优于管式换热器，是一种值得发展的换热设备。最后提出了该板翅式换热器在实际应用中存在的一些问题及对应的处理方法。     

基于数据集成的GTCC进气冷却经济评价系统程序实现

提出了基于数据集成的燃气—蒸汽联合循环进气冷却经济评价方法,即综合GTCC系统的进气温度特性、进气冷却系统的变工况特性以及当地全年标准气象参数等。采用VB语言编制了该评价方法的计算程序,并形成动态数据库链接,实现复杂数据自动输入输出。利用所设计的GTCC进气冷却评价系统,对华南某地GTCC电站采用不同进气冷却方案的经济性作了比较评价。     

PG5301N型燃气轮机进气系统改造

介绍了GDX脉冲自清式空气过滤系统的结构、自清原理、主要参数及自清特点,对正确使用GDX脉冲自清式进气过滤系统提出了几点建议。     

Brayton refrigeration cycle for gas turbine inlet air cooling

In this paper, a new approach to enhance the performance of gas turbines operating in hot climates is investigated. Cooling the intake air at the compressor bell mouth is achieved by an air Brayton refrigerator (reverse Joule Brayton cycle) driven by the gas turbine and uses air as the working fluid. Fraction of the air is extracted from the compressor at an intermediate pressure, cooled and then expands to obtain a cold air stream, which mixes with the ambient intake. Mass and energy balance analysis of the gas turbine and the coupled Brayton refrigerator are performed. Relationships are derived for a simple open gas turbine coupled to Brayton refrigeration cycle, the heat rejected from the cooling cycle can be utilized by an industrial process such as a desalination plant. The performance improvement in terms of power gain ratio (PGR) and thermal efficiency change (TEC) factor is calculated. The results show that for fixed pressure ratio and ambient conditions, power and efficiency improvements are functions of the extraction pressure ratio and the fraction of mass extracted from the air compressor. The performance improvement is calculated for ambient temperature of 45°C and 43.4% relative humidity. The results indicated that the intake temperature could be lowered below the ISO standard with power increase up to 19.58% and appreciable decrease in the thermal efficiency (5.76% of the site value). Additionally, the present approach improved both power gain and thermal efficiency factors if air is extracted at 2 bar which is unlike all other mechanical chilling methods. Copyright © 2007 John Wiley & Sons, Ltd.     

Optimization of inlet air cooling systems for steam injected gas turbines

The cooling of the inlet air in gas turbines is a practice used to improve power performances. In the past, the authors suggested extending this practice to STIG turbines, using some of the heat generated in the back boiler to supply the absorption systems. Positive results have prompted further developments. For the purpose of verifying the positive effects of compression air cooling in STIG turbines, a calculation model has been developed and studied specifically for gas turbines and STIG turbines. The model has been applied to the Allison 501 KH turbine.In addition to focusing on the two traditional techniques used to cool the air of the compression system through an absorption unit and an intercooling unit, the present work emphasizes the advantages of using an ejection cooling system. The availability of exhaust heat from the STIG turbines prompted the idea of cooling through a double ejection system. Water cannot be used as a primary refrigerant in compression cooling systems because of the very low pressures that have to be reached, whereas the ejection system used for steam compression allows for the use of water. Moreover, the ejection system is relatively easy to design and construct. The use of this cooling system, enables good results to be obtained in terms of the ejection system's coefficient of performance and consequently of the STIG turbine's performance.