Tuesday, April 29, 2014

Thermoelectric water cooling

The following are some ways to cool water using thermoelectric cooler without ice formulation on the cold side of the thermoelectric module which acts as a thermal insulator:

- Using a direct cooling heat exchanger with a circulating pump with flow control to reduce residence time which may lead to ice formation and flow path blockage. A temperature sensor placed on heat exchanger output will be used to control the flow.

- Using thermoelectric module with magnetic stirring (see the proposed design below)

- Using swirling jets generated  by a small circulating pump

- Using more than one thermoelectric cooler with duty cycling (on and off control) to enable cold side deicing 

- Using stirring impeller