Peltier supercooling with isosceles current pulses: Cooling an object with internal heat generation
Document Type
Article
Publication Date
1-1-2017
Abstract
© The Author(s) 2017. Applying a current pulse enables a short-term transitory state where the cold junction of a Peltier couple reaches temperatures below that obtainable via maximum temperature delta steady-state current. Short-term cooling applications like on-chip hot spot and pulsed laser sensor cooling have been studied using pulsed cooling. Some studies have proposed applications that utilize consecutive repeating pulses for longer term cooling applications. These studies have found or theorized increased cooling and coefficient of performance (COP). Considering these studies, it is desirable to have a more detailed analysis of how the additional cooling and COP are achieved. The objective herein is to provide a detailed analysis of cooling rate and COP during pulses using a realistically modeled system simulated in SPICE. It was found that cooling rate for long term consecutive pulse cooling applications can be increased over steady-state but COP in most cases is reduced during current pulses. The reasons why this happens are studied in depth.
Publication Title
ECS Journal of Solid State Science and Technology
Recommended Citation
Piggott, A.,
&
Allen, J.
(2017).
Peltier supercooling with isosceles current pulses: Cooling an object with internal heat generation.
ECS Journal of Solid State Science and Technology,
6(12), N250-N259.
http://doi.org/10.1149/2.0391712jss
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/12655