The influence of the size of the CHP (combined heat and power) system integrated with a biomass fueled gas generator and piston engine on the thermodynamic and economic effectiveness of electricity and heat generation

Skorek‐Osikowska, Anna; Bartela, Łukasz; Kotowicz, J.; Sobolewski, A.; Iluk, T.; Remiorz, Leszek

doi:10.1016/j.energy.2014.01.015

Cited by 74 publications

(20 citation statements)

References 38 publications

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“…For the assumption that NPV = 0 and after the substitution of Equations (17) and (18) into Equation (16), the dependence on the break-even price of electricity can be obtained, presented as Equation (19).…”

Section: Of 34mentioning

confidence: 99%

The Characteristics of a Modern Oxy-Fuel Power Plant

2019

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This paper presents the thermodynamic and economic analyses of four variants of a supercritical oxy-type plant. These variants differed in terms of air separation units (ASU, variants: V1—cryogenic; V2—hybrid; equipped with a three-end (V3a) or four-end (V3b) high-temperature membrane) and boilers (V1 and V3a—lignite-fired fluidized-bed; V2 and V3b—hard-coal-fired pulverized-fuel). The gross power of steam turbine unit (STU) was 600 MW. The live and reheated steam parameters were 650 °C/30 MPa and 670 °C/6.5 MPa, respectively. The influence of the ASUs’ operating parameters on the ASUs’ auxiliary power rate and boiler efficiency (V3a and V3b only) was studied. The ASUs’ operating parameters for maximum net efficiency were then determined. The decrease in the net efficiency compared to a reference plant (with a classic fluidized-bed or pulverized-fuel boiler) fluctuated in the range 7.2 (V3b)–11.2 (V1) p.p. An analysis of the waste heat utilization was performed (fuel drying—V1 and V3a; STU steam-water heat exchangers replacing). Thus, the efficiency decreases fluctuated in the range 4.3 (V3b)–10.2 (V1) p.p. The economic analysis showed that in order for the variants to be economically viable, the unit CO2 emission cost should be greater than 42.2 (V1) or 22.0 (V3b) EUR/MgCO2.

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Section: Of 34mentioning

confidence: 99%

The Characteristics of a Modern Oxy-Fuel Power Plant

2019

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“…If maintaining the combustion and gasification units at Gibbs equilibrium is operationally difficult, then gas turbines must be preferred over fuel cells. It may be noted here that others [66] have also observed that natural gas based IGFCs have higher efficiency compared to biomass based IGFCs.…”

Section: Use Of Natural Gas As Fuelmentioning

confidence: 79%

Design of biomass and natural gas based IGFC using multi-objective optimization

Naraharisetti

Lakshminarayanan

Karimi

2014

Energy

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“…Fuel is fed into the reactor through the screw conveyor. The gas generator consists of a vertical cylindrical reactor with an internal diameter of 400 mm and a height of approximately 900 mm (Skorek-Osikowska et al, 2014;Kotowicz et al, 2013). Inside the apparatus, a central pipe of adjustable height, which is located in the vertical axis, is intended to directly collect the process gas from the gasification zone.…”

Section: Materials and Analytical Methodsmentioning

confidence: 99%

“…Unfortunately, this solution frequently causes operational problems. Thermal biomass conversion methods, such as pyrolysis or gasification, are frequently applied for power and heat generation because these methods (systems) are characterized by a high efficiency of energy conversion from fuels to useful energy and enable the reduction of pollutant emissions into the atmosphere (Skorek-Osikowska et al, 2014). Process gas can also be converted to produce biofuels (Van der Heijden and Ptasinski, 2012;Juraščík et al, 2010;Leibbrandt et al, 2013;Atsonios et al, 2013).…”

Section: Introductionmentioning

confidence: 99%