Bench time is the general term used to describe the required delay, at ambient conditions, for a frozen gel pack or a frozen PCM to attain its latent heat of energy – or its phase change temperature.
Introduction to Thermal Energy Storage
Passive processes for thermal energy storage has received a lot of attention in the past 25 years. These passive thermal energy storage materials can typically be divided into two parts, specific and latent. This paper will primarily focus on the concept of latent heat. However, a basic understanding of specific heat is needed to fully appreciate latent heat.
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First, let’s define “gel pack”.