Thermal energy storage technologies ppt

What is thermal energy storage system (TESS)?

ECpE Department • Thermal energy storage systems (TESS) store energy in the form of heat for later use in electricity generation or other heating purposes. • Depending on the operating temperature, TESS can be categorized into two groups: low-temperature (<200 °C) TESS and high-temperature TESS.

What is thermal energy storage?

Thermal energy storage in the form of sensible heat is based on the specifi c heat of a storage medium, which is usually kept in storage tanks with high thermal insulation. The most popular and commercial heat storage medium is water, which has a number of residential and industrial applications.

What are the benefits of thermal energy storage?

Potential and Barriers – The storage of thermal energy (typically from renewable energy sources, waste heat or surplus energy production) can replace heat and cold production from fossil fuels, reduce CO 2 emissions and lower the need for costly peak power and heat production capacity.

Can thermal energy be stored in a heat storage media?

Thermal energy (i.e. heat and cold) can be stored as sensible heat in heat stor-age media, as latent heat associated with phase change materials (PCMs) or as thermo-chemical energy associated with chemical reactions (i.e. thermo-chemical storage) at operation temperatures ranging from -40°C to above 400°C.

How does thermal energy cost calculation work?

The calculation focuses on the price of thermal energy and determines the cost range for TES to be economically competitive based on today’s energy prices.

What is the best storage medium for heat?

The most popular and commercial heat storage medium is water, which has a number of residential and industrial applications. Under-ground storage of sensible heat in both liquid and solid media is also used for typically large-scale applications.