Dynamic modelling of oxyfuel power plant

Kuczyński, K.; Fitzgerald, F.D.; Adams, D.J.; Glover, F. H. M.; White, Vince; Chalmers, Hannah; Errey, Olivia; Stephenson, P.L.

doi:10.1016/j.egypro.2011.02.151

Cited by 17 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These researchers demonstrated how the air-fuel ratio should be based on physical properties. However, on the field, the airfuel ratio is calculated based on the composition of the fuel to be burned as regarded in these references among others [14]- [17].…”

Section: Astesj Issn: 2415-6698mentioning

confidence: 99%

Variation of the Air-Fuel Ratio with Inlet Pressure, Temperature and Density

Ndizihiwe¹,

Mkandawire²,

Venant³

2021

Adv. sci. technol. eng. syst. j.

View full text Add to dashboard Cite

The control of the air-fuel ratio (AFR) is critical for the efficiency of the combustion. This is for achieving the better performance of the plant and result in high output energy. Computation of the AFR is gone considering the composition of the fuel regardless of the inlet pressure, density ad temperature of both fuel and the air. This paper models AFR as a function of the inlet temperature, density, and pressure. Formulated models have been checked using recorded data from the Jabana2 Oil Power Plant. The results show that the AFR increases by 1.5 units as the pressures of the gas increase by 0.6 bars but when it reaches 2.9 bar, AFR starts to decrease, 0.9% of the increase of the density leads to the decrease of the AFR of 0.4 in average. 3.5 o C rise of inlet temperature lift the AFR by 0.2; however, it starts to decrease when the temperature reaches 78 o C.

show abstract

Section: Astesj Issn: 2415-6698mentioning

confidence: 99%

Variation of the Air-Fuel Ratio with Inlet Pressure, Temperature and Density

Ndizihiwe¹,

Mkandawire²,

Venant³

2021

Adv. sci. technol. eng. syst. j.

View full text Add to dashboard Cite

show abstract

“…A coal air-fired power plant with control system was developed with Doosan SpaceGEN platform and in-house coding in [40]. The model also comprised an air separation unit and a CO 2 compression and purification unit, which were modeled with Aspen Hysys ® .…”

Section: Ramping Ratementioning

confidence: 99%

Review of Process Modeling of Solid-Fuel Thermal Power Plants for Flexible and Off-Design Operation

et al. 2020

View full text Add to dashboard Cite

Since the widespread deployment of non-dispatchable, intermittent, and highly variable power production from renewable energy sources (RES), the demand for flexible power production has been steadily growing. As new-built dispatchable power plants have not been very quickly adapted to the emerging flexible operation, this task has been addressed by existing plants as well. Existing solid-fuel thermal power plants have undergone an extensive study to increase their flexible operation. Thermodynamic process-modeling tools have been extensively used for plant modeling. Steady- and transient-state simulations have been performed under various operating regimes, supplying valuable results for efficient power-plant operation. Flexibility aspects regarding low-load operation and steady operational conditions are mostly investigated with steady-state simulations. Flexibility aspects related to variation over time such as ramping rates are investigated with transient simulations. The off-design operation is mainly attributed to the existing fleet of power plants, struggling to balance between their former operational schemes as base and/or medium-load plants. However, off-design operation is also considered for new plants in the design phase and is included as a simulation aspect. Process modeling turns out to be a proven tool for calculating plant flexibility and predicting extreme operating conditions, defining further steps for a new operational scheme, drafting accident mitigation control procedures or, furthermore, provisioning more complex and cross-field future tasks. A review of the off-design aspect as a simulation approach is undertaken and presented in this work. Finally, challenges and future perspectives for this aspect of solid-fuel thermal power plants are discussed.

show abstract

“…After the establishment of Doosan Power Systems investigating the control and operation of the utility-scale oxy-fuel for combustion in the power plant, Kuczynski et al [26] needed to adopt the optimized designs and develop appropriate control and dynamic optimization strategies of oxy-fuel. The oxy-fuel process excludes all gases rather than oxygen from the air for combustion purposes.…”

Section: Figure 2: Fuzzy Logic Control (Left) and Proportional Integral Control (Right)mentioning

confidence: 99%

Review of Stoichiometric Technique for Better Performance of the Boiler

Ndizihiwe

Mkandawire

Venant

2020

IJASRE

View full text Add to dashboard Cite

The combustion within the boiler burns fuel to create heat energy which then produces electrical power. The combustion of fuel is its reaction with oxygen available in the air. The amount of fuel that can be well burnt is limited by the quantity of oxygen. Once all the fuel is not burnt at all, some of it stays in the boiler and other quantity goes to the atmosphere. Most of the fuels used in the boiler are hydrocarbons which release hydrogen and carbon as residuals. It causes small efficiency and degradation of the air. It is needed to take the faction of air/fuel to the optimum value to reduce these problems. This paper provides different reviewed algorithms that control the combustion within the boiler and the role of environmental temperature. The author found that the separation of the oxygen from the air combined with the preheating both fuel and oxygen taking into account environmental temperature would provide better stoichiometric values, which improve the performance.

show abstract

Dynamic modelling of oxyfuel power plant

Cited by 17 publications

References 0 publications

Variation of the Air-Fuel Ratio with Inlet Pressure, Temperature and Density

Variation of the Air-Fuel Ratio with Inlet Pressure, Temperature and Density

Review of Process Modeling of Solid-Fuel Thermal Power Plants for Flexible and Off-Design Operation

Review of Stoichiometric Technique for Better Performance of the Boiler

Contact Info

Product

Resources

About