Evaluating the productivity and financial feasibility of a vertical-axis micro-hydro energy generation project using operation simulations

Huang, Sy‐Ruen; Chang, Pao‐Long; Hwang, Ya-Wen; Ma, Yen-Huai

doi:10.1016/j.renene.2013.11.071

Cited by 16 publications

(8 citation statements)

References 7 publications

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“…In case the annual cash flows of the company are uniform, the payback period can be calculated by using the following formula: (Carlo, 2010). NPV formula is as follows (Huang, 2014):…”

Section: Situation Analysismentioning

confidence: 99%

Potential Feasibility Study of Creating a Small Company That Produces Tomato Paste in Ambatondrazaka District

Rasolofoharitseheno

Kusnandar

Ferichani

2015

AJAEES

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Third, I would like to express sincere thanks to the region of Alaotra-Mangoro for the facilitations that they provided and for allowing me to conduct this research in the district of Ambatondrazaka. I acknowledge particularly Mr. Richard Ramandiamanana and Mr. Marius Andriamainty, Head and DDR of Alaotra-Mangoro region, respectively. I also acknowledge Mr. Benoit Rakotondrasata, Mr. Lanto Ravalitera and those who helped me for the collection of the data. The data collection should not be achieved without your involvements. Fourth, I also would like to acknowledge my family, my Dad and my Mom for helping me to collect the data, my big brother Toky for providing me a motorbike, my younger brothers Tahiana, Tojo, Tiana and Herizo for their accompaniments, my cousin Nahary for his ATM card, and particularly Patricia Raharilalao for her love and her supports. Lastly, I would like to thank my fellow postgraduate students in the Department of Agribusiness of Sebelas Maret University and all my friends such as Tommy, Kombate, Arlindo, Hailou, Abdullah, Jean Jacques and Victor for their supports, assistances and kindnesses. Surakarta, April 2015 Hasina Rasolofoharitseheno perpustakaan.uns.ac.id digilib.uns.ac.id commit to user v TABLE OF CONTENTS TABLE OF CONTENTS .

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“…In case the annual cash flows of the company are uniform, the payback period can be calculated by using the following formula: (Carlo, 2010). NPV formula is as follows (Huang, 2014):…”

Section: Situation Analysismentioning

confidence: 99%

Potential Feasibility Study of Creating a Small Company That Produces Tomato Paste in Ambatondrazaka District

Rasolofoharitseheno

Kusnandar

Ferichani

2015

AJAEES

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“…In addition, other studies were conducted on fatigue design and life of Francis turbine runners [4,[29][30][31][32]. Some previous studies also examined the loss, financial impacts, and maintenance cost of wear in the regulation process of hydropower units [33][34][35][36][37][38][39]. Other studies researched the assessment methods of wear and tear in detail [24,25].…”

Section: Introductionmentioning

confidence: 99%

An Improved Frequency Dead Zone with Feed-Forward Control for Hydropower Units: Performance Evaluation of Primary Frequency Control

Yang

et al. 2019

Energies

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Due to the integration of more intermittent renewable energy into the power grid, the demand for frequency control in power systems has been on the rise, and primary frequency control of hydropower units plays an increasingly important role. This paper proposes an improved frequency dead zone with feed-forward control. The aim is to achieve a comprehensive performance of regulating rapidity, an assessment of integral quantity of electricity, and the wear and tear of hydropower units during primary frequency control, especially the unqualified performance of integral quantity of electricity assessment under frequency fluctuations with small amplitude. Based on a real hydropower plant with Kaplan units in China, this paper establishes the simulation model, which is verified by comparing experimental results. After that, based on the simulation of real power grid frequency fluctuations and a real hydropower plant case, the dynamic process of primary frequency control is evaluated for three aspects, which include speed, integral quantity of electricity, and wear and tear. The evaluation also includes the implementations of the three types of dead zones: common frequency dead zone, the enhanced frequency dead zone, and the improved frequency dead zone. The results of the study show that the improved frequency dead zone with feed-forward control increases the active power output under small frequency fluctuations. Additionally, it alleviates the wear and tear problem of the enhanced frequency dead zone in the premise of guaranteeing regulation speed and integral quantity of electricity. Therefore, the improved frequency dead zone proposed in this paper can improve the economic benefit of hydropower plants and reduce their maintenance cost. Accordingly, it has been successfully implemented in practical hydropower plants in China.

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“…It can better describe the energy dissipation, the energy produced from the interior of the system and the energy supplied from the environment [10][11]23]. The HEGS is a typical open system, which can better reflect the transmission and dissipation of energy [10,[28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

“…From the point of view of the transmission and dissipation of energy, putting the HEGS into the theory frame of the generalized Hamiltonian system is a new research approach to study the energy characteristics of the HEGS [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40]. In previous studies, The introduced random function cannot truly describe the dynamic change of the hydropower system with time.…”

Section: Introductionmentioning

confidence: 99%

Hamiltonian analysis of a hydro-energy generation system in the transient of sudden load increasing

et al. 2017

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This paper addresses the Hamiltonian mathematical modeling and dynamic analysis of a hydro-energy generation system in the transient of sudden load increasing. First, six dynamic transfer coefficients of the hydro-turbine for the transient of sudden load increasing are innovatively introduced into the hydro-energy generation system. Considering the elastic water-hammer model of the penstock and third-order model of the generator, we established a dynamic mathematical model of the hydro-energy generation system in the transient of sudden load increasing. Moreover, from the point of view of the transmission and dissipation of energy of the system, we propose the hydro-energy generation system into the theory frame of the generalized Hamiltonian system. A novel Hamiltonian model of the hydro-energy generation system is established utilizing the method of orthogonal decomposition. Finally, based on the data of a real hydropower plant, numerical simulations and

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Evaluating the productivity and financial feasibility of a vertical-axis micro-hydro energy generation project using operation simulations

Cited by 16 publications

References 7 publications

Potential Feasibility Study of Creating a Small Company That Produces Tomato Paste in Ambatondrazaka District

Potential Feasibility Study of Creating a Small Company That Produces Tomato Paste in Ambatondrazaka District

An Improved Frequency Dead Zone with Feed-Forward Control for Hydropower Units: Performance Evaluation of Primary Frequency Control

Hamiltonian analysis of a hydro-energy generation system in the transient of sudden load increasing

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