Informatics Publishing Limited

Ajit Kumar ¹, Ashutosh Das ², Mukesh Goel ², K. Ravi Kumar ², B. Subramanyam ³, J. S. Sudarsan ¹

Affiliations
1 Department of Civil Engineering, SRM University, Kattankulathur, Kanchipuram, T. N., IN
2 Centre for Sustainable Development, PRIST University, Thanjavur, T. N., IN
3 School of Civil Engineering, SASTRA University, Thanjavur-613 401, T. N., IN

Abstract

Discharge of untreated domestic wastewater often leads to eutrophication of receiving water body and create a septic condition, and accelerate sewage sickness in case of land-disposal. However, since domestic wastewater is recognized as nutrient rich water, the recovery of nutrients using a chemical precipitation and crystallization technique may provide value added product struvite, which is a slow releasing fertilizer. This research work shows the techno-feasibility struvite precipitation as an attempt for improving water quality, with simultaneous recovery of struvite as byproduct.

Keywords

Domestic Wastewater, Recovery of Nutrients, Struvite.

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M. Suneetha ¹, R. Srinivasa Rao ², B. Subramanyam ³

Affiliations
1 Department of Electrical and Electronics Engineering, Narayana Engineering College, NH-5, Muthukur Road,A.K. Nagar, Near Apollo Hospital, Nellore, Andhra Pradesh –524004, IN
2 Department of Electrical and Electronics Engineering, Jawaharlal Nehru Technological University College of Engineering, Pitapuram Road, Kakinada, Andhra Pradesh – 533003, IN
3 Sri Venkateswara University College of Engineering, Sri Padmavati Mahila Visvavidyalayam, Tirupati, Andhra Pradesh –517502, IN

Abstract

This paper presents an efficient and reliable Particle Swarm Optimization (PSO) algorithm for solving Reactive power optimization including voltage deviation in Power System. Voltage deviation is the capability of a power system to maintain up to standard voltages at all buses in the system under standard conditions and under being subjected to a disturbance. Reactive power optimization is a complex combinatorial programming problem that reduces power loses and improves voltage profiles in a power system. To overcome this shortcoming, a multi objective PSO is proposed and applied in reactive power optimization on IEEE-30 bus, Here the RPO problem has been formulated as a constrained multi-objective optimization problem by combining of two objective functions (real power loss and voltage profile improvement) linearly shows that the PSO more effectively solve the reactive power optimization problem in power system.

Keywords

Graphical User Interface Tool, Multiobjective Particle Swarm Optimization, Reactive Power – Pso –Ieee 30 Bus –Sizing of Capacitor, Reactive Power Optimization, Voltage Deviation and Loss Minimization.

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M. Suneetha ¹, R. Srinivasa Rao ², B. Subramanyam ³

Affiliations
1 Department of Electrical & Electronics Engineering, Narayana Engineering College, NH-5, Muthukur Road, A.K.Nagar, Near Apollo Hospital, Nellore, Andhra Pradesh – 524 004, IN
2 Department of Electrical Engineering, Jawaharlal Nehru Technological University College of Engineering, Pitapuram Road, Nagamallithota, Kakinada, Andhra Pradesh – 533 003, IN
3 Sri Venkateswara University College of Engineering, Sri Padmavati Mahila Visvavidyalayam, Tirupati - 517502, Telangana, IN

Abstract

To control the reactive power, voltage regulation is very difficult in power system from aspects of load compensation. Reduce the power losses and voltage improvement  as main aim to compute best setting of shunt devices such as shunt capacitors, SVC, tap changing transformers etc., in power system, when  load will gradually increased, then automatically voltage is not maintain reference value due inductive load and energy storage elements. In this paper proposed reduce the power losses and improve voltage profile by using SVC and , switched capacitors with co-ordination have been included in the system. The proposed system has been validated to 9-bus test system considered.

Keywords

Bedak sejuk, Cosmetic Powder, Natural Cosmetic, Rice Starch, Safety Evaluation

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B. Subramanyam ¹, P. Bridjesh ¹

Affiliations
1 Department of Mechanical Engineering, MLR Institute of Technology, Hyderabad - 500043, Telangana, IN

Abstract

Objective: To design and analyze the student formula car roll cage by using analytical method. Method/Analysis: In this method the analysis is based on the dynamic loads applied on the roll cage through the conditions of normal driving, along with torsion rigidity of the roll cage. Roll cage can absorb high energy impacts at the same time as controlling the rate of deceleration. Finding: The effect of analytical calculations are used in designing student formula SAE car roll cage, with the recommendations made that the mild steel and carbon-fiber skins on a tabular space frame. Application/ Improvements: The proposed analysis paves a path of reference for design and analysis of student formula car roll cage.

Keywords

Dynamic Loads, Roll Cage, SAE (Societyof Automotive Engineers)

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G. Srinivasulu ¹, B. Subramanyam ², M. Surya Kalavathi ³

Affiliations
1 Associate Professor, Department of EEE, NEC, Nellore - AP, 524004, IN
2 Professor, Department of EEE, PBRVITS, Kavali - AP,524201, IN
3 Professor, Department of EEE, JNTUH, Hyderabad - TS, 500085, IN

Abstract

An electric power system plays a crucial role in the economic and social development of a country. Economic growth in India has spurred the need for more power and hence the infrastructure to transport the power. Sufficient transmission capacity is very essential in any long-term planning for improving the availability and supply of power. So Transmission Expansion Planning (TEP) is integral to the development of a stable and reliable power infrastructure. TEP infuture is a very complex task which needs a coordinated and analytical analysis of various scenarios and contingencies. In this work we have implemented a scheme for TEP which factors load growth and considers N-1 contingency. Both economics and technical considerations are considered in the appraisal of the most desirable transmission network. A multi objective optimization approach is suggested and the optimization of the expansion plan is done with the help of Backward Search (BS), Forward Search (FS), Hybrid Search (HS) and Genetic Algorithm (GA). The TEP is prepared for a 6 Bus-Roy Billinton Test System (RBTS). Transmission Planning Index (TPI) is introduced to provide a clear indication to the planner about the choice of the plan. The plans suggested by different optimization algorithms are compared in terms of performance measures and reliability indices.

Keywords

Transmission Expansion Planning (TEP), Backward search (BS), Forward Search (FS), Hybrid Search (HS), Genetic Algorithm (GA), N-1 Contingency, Reliability indices and Roy Billinton Test system (RBTS).

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