A Novel Pumped Hydro Combined with Compressed Air  Energy Storage System

Wang, Huanran; Wang, Liqin; Wang, Xinbing; Yao, Erren

doi:10.3390/en6031554

Cited by 60 publications

(19 citation statements)

References 15 publications

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“…Most of the combined technologies currently in the literature involve compressed air systems. For example, Bi et al (2013) and Wang et al (2013) have investigated combining pumped hydro with compressed air, i.e., PHCA. The advantage of the PHCA system is that it avoids the inefficiencies of adding heat during the expansion process of the compressed air system.…”

Section: Combined Energy Storage Methodsmentioning

confidence: 99%

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Potential Research Areas in Residential Energy Storage for NIST’s Engineering Laboratory

Kedzierski¹,

Payne²,

Skye³

2014

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This paper recommends research that is required to develop and, thus, enable cost effective, residential electricity storage systems for renewable energy. As residential electricity generation from renewable sources becomes more prevalent, residential energy storage will become an important factor in ensuring the stability of the electrical grid; grid operators will be able to timeshift demand to smooth peaks and match supply capacity. However, local storage of excess energy from renewable sources is currently not economically attractive due to the long payback period required to recover capital costs. NIST Engineering Laboratory is well positioned to make significant contributions to the relatively neglected field of residential energy storage. Possession of the NIST's Net-Zero Energy Residential Test Facility makes it possible to work collaboratively with other laboratories within NIST to demonstrate field performance of new ideas in energy storage technologies such as batteries, super capacitors, superconducting magnets, and hydrogen storage. In addition, EL staff and facilities are well matched to projects in Phase Change Material (PCM) facades and PCM evaporators, pumped hydro, solar water heaters and cost/benefit analyses. Potential project ideas are provided for these areas of research.1 Corresponding author. Tel./fax: (301) 975-5282/(301) 975-8973. E-mail address: Mark.Kedzierski@NIST.gov iii This publication is free of charge from: http://dx.

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Section: Combined Energy Storage Methodsmentioning

confidence: 99%

“…3, rather than using the compressed air to run a turbine, the air is use to pressurize water that is used to drive a pump. Wang et al (2013) have calculated that a tank pressure (P) of 5 MPa is equivalent to a dam with a height (h) of 500 m as shown on the right side of Fig. 3.…”

Section: Combined Energy Storage Methodsmentioning

confidence: 99%

Potential Research Areas in Residential Energy Storage for NIST’s Engineering Laboratory

Kedzierski¹,

Payne²,

Skye³

2014

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“…The adaptable application of compressed air also permits a combination of various powerful machine units for different heads. In addition, the pumped storage heads can be combined with an adiabatic compressed air storage power plant [6] in or der to provide a redundant electrical energy storage op tion.…”

Section: Ausblickmentioning

confidence: 99%

Pumped storage technology combined with thermal energy storage – Power station and pressure tunnel concept

Pikl

Richter

Zenz

2017

Geomechanics and Tunnelling

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Water power is the oldest and most‐used energy source for provision of mechanical work and electricity generation. Furthermore pumped storage hydropower is ranked as the most reliable and efficient storage technology for electricity. The energy carrier water is also the most commonly‐used thermal storage medium due to its high specific heat capacity. In a study, the combination of electrical and thermal energy storage in a pumped storage power station is investigated in order to cover two energy‐intensive sectors with the economical double use of water as an energy medium. With this double application the energy output compared to separate storage usage can be considerably increased. Underground power stations are independent of topography, so this storage concept can be used for district heating supply. One possible vision is to stor solar energy into the water reservoir of a pumped storage power station in the summer months and transfer it in the high‐demand winter months. In order that pumped storage power stations can keep functioning at high and seasonally fluctuating water temperatures and simultaneously store thermal energy efficiently, some adaptations of the structures and the pressure tunnel layout are necessary.

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“…At the same time, the cost and difficulty of power system regulation and control have increased due to large-scale grid-connected operations using renewable energy. Fluctuations in renewable energy generation can be reduced and the power in power grids can be balanced through large-scale power energy storage technology, which has developed rapidly as a support technology for the structural adjustment and sustainable development of power grids [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Hydraulic Potential Energy Transfer Technology and Its Application to Compressed Air Energy Storage

Jiang

Cui

et al. 2018

Energies

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In recent years, Hydro-pneumatic cycling compressed air energy storage (HC-CAES) has become an important topic in compressed air energy storage (CAES) technology research. In HC-CAES, air is compressed by liquid and driven by electrical equipment when energy is stored, and then, liquid is used to drive the water conservancy equipment to generate electricity. In this study, adaptive hydraulic potential energy transfer technology is proposed to solve a series of problems in the HC-CAES system, including the high fluctuation range of gas potential energy, poor operating stability, low efficiency, and so on. Therefore, fluctuating potential energy can be stably transferred through the variable area hydraulic devices, which can be controlled with an on–off valve. The structure and operation scheme of the adaptive hydraulic potential energy transfer device used in the HC-CAES system are explained in detail; the device can provide a stable water head range for the highly efficient operation of water conservancy equipment. Moreover, an optimal operation scheme was determined through simulation analysis; a physical experiment platform was built to verify the feasibility of the design and stability of system operation.

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A Novel Pumped Hydro Combined with Compressed Air Energy Storage System

Cited by 60 publications

References 15 publications

Potential Research Areas in Residential Energy Storage for NIST’s Engineering Laboratory

Potential Research Areas in Residential Energy Storage for NIST’s Engineering Laboratory

Pumped storage technology combined with thermal energy storage – Power station and pressure tunnel concept

Adaptive Hydraulic Potential Energy Transfer Technology and Its Application to Compressed Air Energy Storage

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