The Engineered Fluids' Guide to SLIC
Single-phase, Liquid Immersion Cooling
The SLIC Primer is a wealth of information for anyone that is interested in learning the details of how to design, build and operate a SLIC cooling system for their electronics. This presentation contains a wealth of information about tank design, coolant flow rates, materials to use, materials to avoid, how to calculate heat loads, single and dual loop systems, etc. We have gathered the reference material so that you can quickly find and build your own SLIC system for ASIC Miners, Servers, GPUs, and FPGAs.
Have a question that we did not answer in the SLIC Primer? Just email us at firstname.lastname@example.org and our technical experts will be happy to help you!
SLIC Terms and Definitions
There are a number of important terms that you need to understand in order to understand and implement a Single-phase Liquid Immersion Cooling system. Below you will find the most important terms and their definitions.
Dielectric strength is defined as the minimum applied electric field (i.e., the applied voltage divided by electrode separation distance) that results in a materials' breakdown. Breakdown is the point at which the electric field frees the bound electrons and the material will conduct electricity.
The dielectric strength ad & breakdown voltage for non-conducting fluids is measured using the ASTM-D1816 standard.
Acronym for "Single-phase, Liquid Immersion Cooling"
In the tradition of all new technologies, we needed a catchy acrychom we could use to avoid having to say or type out all those words every time! We like the term "SLIC" because once you have had a chance to see it in action, well its pretty SLIC!
Thermal Conductivity is the property of a material or fluid to conduct heat. In more technical terms, it is the measure of the amount of energy (heat) that flows through a material over period of time in relation to surface area exposed.
In the International System of Units (SI or Metric System), thermal conductivity is measured in watts per meter-kelvin (W/(m⋅K)). In the United States customary system (USCS or USC) thermal conductivity is measured in BTU/(hr⋅ft⋅°F).
The standard method for measuring the thermal conductivity of a non-metallic fluid is defined by ASTM D2717-95.
GWP - Global Warming Potential
The Global Warming Potential (GWP) was developed to allow comparisons of the global warming impacts of different gases. Specifically, it is a measure of how much energy the emissions of 1 ton of a gas will absorb over a given period of time, relative to the emissions of 1 ton of carbon dioxide (CO2). The larger the GWP, the more that a given gas warms the Earth compared to CO2 over that time period. The time period usually used for GWPs is 100 years. GWPs provide a common unit of measure, which allows analysts to add up emissions estimates of different gases (e.g., to compile a national GHG inventory), and allows policymakers to compare emissions reduction opportunities across sectors and gases.