This chapter is on the pumped thermal energy storage (PTES) concept in general and specific configurations, presents the fundamentals and thermodynamics governing the system operation, and reviews the scientific state of the art and commercial projects on that across the world. The chapter will then...
(2016) indicated that there is an optimum value for the thermal energy storage temperature that gives the maximum roundtrip efficiency for PTES systems. Thus, to achieve the best performance, such systems should be controlled to work in the region below or equal to this optimum temperature. A...
Southwest Research Institute (SwRI), in partnership with Malta, Inc., has completed assembly and commissioning of the first-of-a-kind pumped heat (or thermal) energy storage (PTES) demonstration facility. Long-duration, large-scale storage capabilities, like PTES, can help balance energy volatility...
Pumped thermal energy storage (PTES), where electricity is stored in hot and cold storage units, has recently garnered a lot of interest. Previously proposed PTES systems rely on pure fluids as working fluids in Brayton‐ or Rankine‐based power cycles. Herein, ZeoPTES, a PTES system using ...
Heat pumps,Thermal energy,Heat engines,Energy storage,Solar heating,ReservoirsPumped thermal energy storage (PTES) is a grid-scale energy management technology that stores electricity in the form of thermal energy. A number of PTES systems have been proposed using different thermodynamic cycles, ...
pumped thermal energy storagetranscritical CO2Pumped thermal energy storage (PTES) is a technology for intermediate storage of electrical energy in the form of thermal energy. In this work, PTES systems based on a transcritical CO2 charging process are investigated. A two-zone water storage ...
Thermal-integrated pumped thermal electricity storage (TI-PTES) could realize efficient energy storage for fluctuating and intermittent renewable energy. However, the boundary conditions of TI-PTES may frequently change with the variation of times and seasons, which causes a tremendous deterioration to ...
A Pumped Thermal Energy Storage (PTES) system is one of many possible energy storage solutions that could help integrate variable renewable energy generators into the power grid. This paper analyzes the possible use of a PTES system to generate revenue in power systems through energy arbitrage, ...
In this paper, we present thermo-economic models of two recently proposed medium- to large-scale electricity storage systems, namely 'Pumped-Thermal Electricity Storage' (PTES) and 'Liquid-Air Energy Storage' (LAES), focusing on system efficiency and costs. The LAES thermodynamic model is ...
Three distinct pumped-thermal electricity storage (PTES) system variants based on currently available sensible heat storage materials are presented: (i) Joule-Brayton PTES systems with solid thermal reservoirs; (ii) Joule-Brayton PTES systems with liquid thermal stores; and (iii) transcritical Rankine...