Energy exergy efficiencies and environmental effects of mixed fuelled (solid+gas) industrial facility steam boiler

Kaya, Durmuş; Eyidoğan, Muharrem; Özkaymak, Mehmet; Turhan, F; Kılınç, Enes; Kayabaşı, Erhan; Şahin, Zafer; Sonverdi, E; Selimli, Selçuk

doi:10.1179/1743967113z.00000000061

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Kaya et al (2013) studied an experimentally mixed fuel (solid + gas) boiler operating at 7,000 kPa pressure and 778.15 K temperature with a nominal capacity of 25 kg s −1 to find potential improvements in the boiler’s efficiency and to reduce its environmental emissions. In this scenario, while the boiler was working under operating conditions, temperature, pressure, velocity and combustion gas measurements were performed and the measured data were used to establish a mass and energy balance.…”

Section: Introductionmentioning

confidence: 99%

CO₂ emission during the combustion of Orhaneli lignite coal

Özkaymak

Ceylan

Okutan

et al. 2017

WJE

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Purpose In Turkey, dependence on foreign countries for energy is a problem which upsets all economic balances. Turkey’s biggest fossil energy source is lignite coal. Therefore, energy conversion of lignite in thermal plants, causing minimum environmental effect is extremely important. The basic problem in terms of the combustion technology is to improve the combustion technology that can burn the low-qualified fuels that do not have standard fuel features (lignite, peat, schist). The most suitable technology today for the efficient and clean combustion of nonstandard low-qualified fuels is the combustion at fluidized-bed technology. In this study, CO2 emission that occurs during the combustion of Orhaneli coal that is one of our native low-qualified lignite, has been investigated according to the experimental study. Design/methodology/approach For this combustion experiment, laboratory-scaled circulating fluidized-bed (CFB) process that exists at TÜBITAK-MAM Energy Institute which has been designed and used before has been used. The effect of excess-air coefficient, combustion type and bed temperature to the greenhouse gas formation and CO2 emission has been investigated experimentally. In terms of flue gas emissions, it has been detected that the decrease of the amount of CO2 that has occurred has no positive effects on combustion efficiency, water vapor, SO2, NOx, CO and other gases which occur during deficient combustion must be thought as a whole and each reaction affects each other similar to complex reactions. Findings As a consequence of measuring CO2 emissions over 10 minute periods, CO2 emissions are 12.43 percent average, CO2 decreases at different air coefficient values; Often form undesirable side reactions such as CO, NOx with back and forth reactions. Originality/value The importance of aerodynamic structure of the system, and the losses and leakages forming in the system has been observed experimental and affected parameters are evaluated.

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Section: Introductionmentioning

confidence: 99%

CO₂ emission during the combustion of Orhaneli lignite coal

Özkaymak

Ceylan

Okutan

et al. 2017

WJE

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“…The energy-saving options investigated in previous studies were compressed-air systems [9], boiler systems [10,11], pumps [12], and lighting systems [13]. In the current study, the energy-saving potential in air conditioners and chiller systems is evaluated and quantified.…”

Section: Introductionmentioning

confidence: 99%

Energy savings potential in air conditioners and chiller systems

Kaya¹,

Alidrisi²

2016

Turk J Elec Eng & Comp Sci

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In the current paper we quantified and evaluated the energy saving potential in air conditioners and chiller systems. We also showed how to reduce the cost of air conditioners and chiller systems in existing facilities on the basis of payback periods. Among the measures investigated were: 1) installing higher efficiency air conditioners, 2) installing higher efficiency chillers, 3) duty cycling air conditioning units, and 4) utilizing existing economizers on air conditioning units. For each method, examples were provided from Arizona, USA. In these examples, the amount of saved energy, the financial evaluation of this energy, and the investment cost and pay back periods were calculated.

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Energy exergy efficiencies and environmental effects of mixed fuelled (solid+gas) industrial facility steam boiler

Cited by 4 publications

References 10 publications

CO₂ emission during the combustion of Orhaneli lignite coal

CO₂ emission during the combustion of Orhaneli lignite coal

Energy savings potential in air conditioners and chiller systems

Increase in energy efficiency of a steel billet reheating furnace by heat balance study and process improvement

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Energy exergy efficiencies and environmental effects of mixed fuelled (solid+gas) industrial facility steam boiler

Cited by 4 publications

References 10 publications

CO2 emission during the combustion of Orhaneli lignite coal

CO2 emission during the combustion of Orhaneli lignite coal

Energy savings potential in air conditioners and chiller systems

Increase in energy efficiency of a steel billet reheating furnace by heat balance study and process improvement

Contact Info

Product

Resources

About

CO₂ emission during the combustion of Orhaneli lignite coal

CO₂ emission during the combustion of Orhaneli lignite coal