Rational Designing of Gas Turbine Inlet Air Cooling System

Radchenko, Andrii; Bohdal, Ł.; Yang, Zongming; Portnoi, Bohdan; Tkachenko, Veniamin

doi:10.1007/978-3-030-40724-7_60

Cited by 26 publications

(8 citation statements)

References 31 publications

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“…There are a lot of waste heat recovery technologies developed to enhance a fuel efficiency of combustion engines: by utilizing the exhaust heat [11,12] and cooling engine cyclic air (intake and scavenge air) in electrically driven vapour-compression refrigeration machines [13,14] and waste heat recovery chillers [15,16]. The most widespread ACh's enable cooling air to the temperature of about 15 ºС with a high coefficient of performance: COP = 0.7-0.8 [17,18]. The vapour-compression chillers provide cooling air practically to any low temperature but at the expense of consuming the electricity to drive the compressors [19,20].…”

Section: Literature Reviewmentioning

confidence: 99%

“…The majority of concepts and approaches to enhancing the efficiency of IES focuse to application of cooling capacity generated in ACh for external consumers, for instance, for space conditioning and technological duties [38]. They do not reveal the reserves for improving the efficiency of cooling the cyclic air of engines themselves and enhancing the engine-generator technologies in the whole as result through using the generated cooling capacity within engine cycles [10,17].…”

Section: Literature Reviewmentioning

confidence: 99%

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Monitoring the efficiency of cooling air at the inlet of gas engine in integrated energy system

et al. 2022

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The fuel efficiency of gas engines is effected by the temperature of intake air at the suction of turbocharger. The data on dependence of fuel consumption and engine electric power on the intake air temperature were monitored for Jenbacher gas engine JMS 420 GS-N.LC to evaluate its influence. A waste heat of engine is rejected for heating water to the temperature of about 90??. The heat received is used in absorption lithium-bromide chiller to produce a cold in the form of chilled water. A cooling capacity of absorption chiller firstly is spent for technological needs and then for feeding the central air conditioner for cooling the ambient air incoming the engine room, from where the air is sucked by the engine turbocharger. The monitoring data revealed the reserves to enhance the efficiency of traditional cooling system of intake air by absorption chiller through deeper cooling. This concept can be realized in two ways: by addition cooling a chilled water from absorption chiller to about 5-7?? for feeding engine intake air cooler or by two-stage cooling with precooling ambient air by chilled water from ACh in the first stage and subsequent deep cooling air to the temperatures 7-10?? in the second stage of intake air cooler by using a refrigerant as a coolant. In both cases the ejector chiller could be applied as the most simple in design.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Monitoring the efficiency of cooling air at the inlet of gas engine in integrated energy system

et al. 2022

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“…In the present investigation the climatic characteristics of GT as dependence of specific (or total) fuel consumption b e on intake air temperature are used. With this, the CDH numbers are multiplied by the value of decrease ∆b e in specific fuel consumption for every 1K drop in intake air temperature, ∆b e /∆t, and by turbine power output P e [61,71]:…”

Section: The Computation Algorithmmentioning

confidence: 99%

“…All the typical methods, based on summarizing the number of CDH, issue from the assumption of a design cooling capacity as a sufficient to provide maximum cooling needs over the full range of yearly operating conditions [63]. Such an approach may lead to considerable oversizing of the chillers and the TIAC systems in the whole that requires to solve the problem of determining the correct design cooling load excluding oversizing, as it was shown in [69][70][71].…”

Section: Introductionmentioning

confidence: 99%

Innovative Turbine Intake Air Cooling Systems and Their Rational Designing

et al. 2020

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The efficiency of cooling ambient air at the inlet of gas turbines in temperate climatic conditions was analyzed and reserves for its enhancing through deep cooling were revealed. A method of logical analysis of the actual operation efficiency of turbine intake air cooling systems in real varying environment, supplemented by the simplest numerical simulation was used to synthesize new solutions. As a result, a novel trend in engine intake air cooling to 7 or 10 °C in temperate climatic conditions by two-stage cooling in chillers of combined type, providing an annual fuel saving of practically 50%, surpasses its value gained due to traditional air cooling to about 15 °C in absorption lithium-bromide chiller of a simple cycle, and is proposed. On analyzing the actual efficiency of turbine intake air cooling system, the current changes in thermal loads on the system in response to varying ambient air parameters were taken into account and annual fuel reduction was considered to be a primary criterion, as an example. The improved methodology of the engine intake air cooling system designing based on the annual effect due to cooling was developed. It involves determining the optimal value of cooling capacity, providing the minimum system sizes at maximum rate of annual effect increment, and its rational value, providing a close to maximum annual effect without system oversizing at the second maximum rate of annual effect increment within the range beyond the first maximum rate. The rational value of design cooling capacity provides practically the maximum annual fuel saving but with the sizes of cooling systems reduced by 15 to 20% due to the correspondingly reduced design cooling capacity of the systems as compared with their values defined by traditional designing focused to cover current peaked short-term thermal loads. The optimal value of cooling capacity providing the minimum sizes of cooling system is very reasonable for applying the energy saving technologies, for instance, based on the thermal storage with accumulating excessive (not consumed) cooling capacities at lowered current thermal loads to cover the peak loads. The application of developed methodology enables revealing the thermal potential for enhancing the efficiency of any combustion engine (gas turbines and engines, internal combustion engines, etc.).

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“…Кількість холоду, виробленого/витраченого за рік: ∑(Q0 •τ ), кВт•год, де Q0 -поточна холодопродуктивність (теплове навантаження СКП); τ -тривалість роботи СКП. Основні положення методології вибору встановленої (проектної) холодопродуктивності СКП в умовах нерівномірних теплових навантажень розглянуті в роботах [4].…”

Section: аналіз проблеми і постановка мети дослідженняunclassified

Холодопродуктивність Системи Кондиціювання Зовнішнього Повітря За Поточним Тепловим Навантаженням

Трушляков¹,

Radchenko²,

Радченко³

et al. 2019

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The efficiency of the outdoor air conditioning systems application depends on how full the installed cooling capacity is applied, that is, with a more complete load and for as long as the possible yearly duration in actual climatic conditions. The production of cold is taken as a criteria of a quantitative evaluation of the efficiency of applying the cooling capacity of air conditioning systems – the amount of cold produced in accordance with its current demand for air conditioning, which in turn depends on the current consumption of cooling capacity and its duration and equals to their multiplication. It is obvious that the maximum value of the current amount of cold produced/consumed indicates an effective application of the installed cooling capacity. However, since the current demands of cooling capacity and their duration, that is, the amount of cold produced/consumed, depending on the changing current climatic conditions, they are characterized by significant fluctuations, which makes it difficult to choose the installed cooling capacity of the air conditioning system. Obviously, if we determine the amount of cold produced/consumed by its current values and summarized during the year, it is possible to significantly simplify the choice of the installed cooling capacity. At the same time, the current amount of cold produced/consumed causes a change in the rate of increment of the annual cold production with a change in the installed cooling capacity, and the maximum rate corresponds to the installed cooling capacity, which provides its efficient use. Proceeding from a different rate of increment of annual cold production with an increase in the installed cooling capacity of the air conditioning system due to a change in heat load in accordance with current climatic conditions during the year, the value of design heat load on the air conditioning system (installed cooling capacity) that provides maximum or close to it the rate of increment of the annual production of cold, and hence the maximum efficient use of installed cooling capacity is chosen

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Rational Designing of Gas Turbine Inlet Air Cooling System

Cited by 26 publications

References 31 publications

Monitoring the efficiency of cooling air at the inlet of gas engine in integrated energy system

Monitoring the efficiency of cooling air at the inlet of gas engine in integrated energy system

Innovative Turbine Intake Air Cooling Systems and Their Rational Designing

Холодопродуктивність Системи Кондиціювання Зовнішнього Повітря За Поточним Тепловим Навантаженням

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