NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings
The electrical transmission in place in today’s world is rapidly undergoing a change with the inclusion of renewable sources of energy for multiple sources of energy production away from the conventional system of energy production. Energy storage devices like Redox flow batteries (example: Vanadium...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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2014
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| Online Access: | http://hdl.handle.net/10356/60887 |
| _version_ | 1811690116209442816 |
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| author | Narayanan Siddharth |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Narayanan Siddharth |
| author_sort | Narayanan Siddharth |
| collection | NTU |
| description | The electrical transmission in place in today’s world is rapidly undergoing a change with the inclusion of renewable sources of energy for multiple sources of energy production away from the conventional system of energy production. Energy storage devices like Redox flow batteries (example: Vanadium Redox battery) have become increasingly important in this scenario. As a result, there is a pertinent need to study these systems to understand the behavior as accurately as possible to get the best possible output out of it. In the first part, the influence of temperature on the capacity of the battery is studied by modelling the diffusion of different species of Vanadium ions across the ion exchange membrane and calculating the capacity decay due to resulting self-discharge. It was seen that the capacity loss had two parts to it, one contributed by the intrinsic loss due to the rise in temperature and the second part due to the diffusion process. The effect of temperature was seen to be the most in the first half of the process with the effects stabilizing towards the end. In the second part, the charging model of the Vanadium Redox battery was studied by applying the Constant Current- Constant Voltage algorithm and modelling for different SOC limits for the Constant current charging mode across a current range of 30 to 58 Amperes. It was found that the efficiency increased with increasing SOC limit with the rate of increase decreasing for every increase in SOC limit. The optimal charging current was found to be in the corridor of 35-45 Amperes with the exact value changing depending on the defined SOC limit. |
| first_indexed | 2024-10-01T05:58:53Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/60887 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:58:53Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/608872023-07-07T16:13:58Z NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings Narayanan Siddharth School of Electrical and Electronic Engineering JTC Corporation Asst. Prof. Zhao Jiyun DRNTU::Engineering::Electrical and electronic engineering::Electric power::Auxiliaries, applications and electric industries The electrical transmission in place in today’s world is rapidly undergoing a change with the inclusion of renewable sources of energy for multiple sources of energy production away from the conventional system of energy production. Energy storage devices like Redox flow batteries (example: Vanadium Redox battery) have become increasingly important in this scenario. As a result, there is a pertinent need to study these systems to understand the behavior as accurately as possible to get the best possible output out of it. In the first part, the influence of temperature on the capacity of the battery is studied by modelling the diffusion of different species of Vanadium ions across the ion exchange membrane and calculating the capacity decay due to resulting self-discharge. It was seen that the capacity loss had two parts to it, one contributed by the intrinsic loss due to the rise in temperature and the second part due to the diffusion process. The effect of temperature was seen to be the most in the first half of the process with the effects stabilizing towards the end. In the second part, the charging model of the Vanadium Redox battery was studied by applying the Constant Current- Constant Voltage algorithm and modelling for different SOC limits for the Constant current charging mode across a current range of 30 to 58 Amperes. It was found that the efficiency increased with increasing SOC limit with the rate of increase decreasing for every increase in SOC limit. The optimal charging current was found to be in the corridor of 35-45 Amperes with the exact value changing depending on the defined SOC limit. Bachelor of Engineering 2014-06-02T07:43:33Z 2014-06-02T07:43:33Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/60887 en Nanyang Technological University 52 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Electric power::Auxiliaries, applications and electric industries Narayanan Siddharth NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings |
| title | NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings |
| title_full | NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings |
| title_fullStr | NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings |
| title_full_unstemmed | NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings |
| title_short | NTU-JTC feasibility studies on vanadium-redox flow batteries (VRB) for energy storage in buildings |
| title_sort | ntu jtc feasibility studies on vanadium redox flow batteries vrb for energy storage in buildings |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Electric power::Auxiliaries, applications and electric industries |
| url | http://hdl.handle.net/10356/60887 |
| work_keys_str_mv | AT narayanansiddharth ntujtcfeasibilitystudiesonvanadiumredoxflowbatteriesvrbforenergystorageinbuildings |