Energy storage systems

Thermal Energy Storage Systems—These are intermittent use systems where the cold is produced off-peak and then used to chill the inlet air during the hot hours of the day. 

The fact that solar energy is an intermittent energy resource means that energy storage systems (e.g., batteries, ultracapacitors, flywheels, and even hydrogen) will be required if solar energy is to be utilized widely. In addition, a variety of toxic chemicals are used in the manufacture of PV cells however, studies of the risks associated with their manufacture and disposal indicate little threat to surroundings and the environment. 

EVALUATING ENERGY STORAGE SYSTEMS ENERGY DENSITY... 

The facile, photoinduced valence isomerization of ethyl 1//-azepine-l-carboxylate to ethyl 2-azabicyclo[3.2.0]hepta-3,6-diene-2-carboxylatehas been studied as a potential solar energy storage system.101102 Unfortunately, the system proved to be inefficient due to build up of polymeric material during the thermally induced, exothermic retro-reaction. 

Magnet wires of YBa2Cu307 for motor generator and energy storage systems. 

Energy-yielding reactions and energy-storage systems form a common pattern found in all hving systems and may be depicted thus ... 

C448.3-02 Design and Installation of Underground Thermal Energy Storage Systems for Commercial and Institutional Buildings [14]... 

ENERGETIC, EXERGETIC, ENVIRONMENTAL AND SUSTAINABILITY ASPECTS OF THERMAL ENERGY STORAGE SYSTEMS... 

Dincer, I., and M.A. Rosen, 2002. Thermal Energy Storage Systems and Applications, John Wiley Sons, London, 580 pp. 

Dincer, I., and S. Dost, 1996. A perspective on thermal energy storage systems for solar energy applications, Int. J. Energy Res., 20, 547-557. 

Krane, R.J., 1989. Second-law optimization of thermal energy storage systems Fundamentals and sensible heat systems, in Energy Storage Systems, edited by B. Kilkis and S. Kakac, Kluwer Academic Publishers, pp. 37-67. 

Adebiyi, G.A., and Russell, L.D., 1987, A second law analysis of phase change thermal energy storage systems, ASME HTD 80 9—20. 

Adebiyi, G. A., 1991, A second law study on packed-bed energy storage systems utilizing phase change materials, ASME J. Solar Energy Eng. 113 146—156. 

Domanski, R., and Fellah, G., 1998, Thermoeconomic analysis of sensible heat, thermal energy storage systems, Applied Thermal Eng. 18 693—704. 

In ATES (Aquifer Thermal Energy Storage) systems groundwater is used to carry the thermal energy into and out of an aquifer. For the connection to the aquifer water wells are used. However, these wells are normally designed with double functions, both as production and infiltration wells, see Figure 29. 

In this study we have described the innovative borehole thermal energy storage system at UOIT and presented a brief performance analysis focusing on coefficient of performance. An illustration is presented. Further research is anticipated to improve the overall BTES system at UOIT, and to produce generalized recommendations for the design of similar systems. 

Thermal storage applications have been proven to be efficient and financially viable, yet they have not been exploited sufficiently. For widespread applications of properly designed and high-efficiency thermal energy storage systems, one must consult the scientific and technical expertise of scientists and engineers in this field. There is an urgent need for an educational opportunity to serve this purpose. 

---