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Heat Transfer & Phase Change Blog Posts

Studying a Dielectric Probe Used for Skin Cancer Diagnosis

November 9, 2015

Doctors can more effectively treat skin cancer when skin tumors are detected early. While visual examinations are typically used to identify such tumors, noninvasive tools like dielectric probes offer another approach. With COMSOL Multiphysics, we analyze the functionality and safety of a dielectric probe used for skin cancer diagnosis.

Designing a More Efficient Disk-Stack Heat Sink with Simulation

November 4, 2015

Heat has a powerful effect on the operation and lifespan of electronic devices. Introducing components like heat sinks within these electronic systems helps maintain cooler temperatures and promotes healthy performance. As we demonstrate with our disk-stack heat sink example, simulation is a powerful tool for analyzing the efficiency of heat sink designs.

Fraunhofer ISE Simulates a Solar Heating and Cooling System

October 27, 2015

Keeping buildings cool in the summer and warm in the winter is a major drain on energy resources. In search of a more cost-effective and energy-efficient way to heat and cool buildings, researchers at Fraunhofer ISE continuously work to develop adsorption-based systems that run on solar energy, natural gas, and industrial waste. Using COMSOL Multiphysics® simulation software, the team investigates the adsorption process, heat exchanger design, and numerous other systems that affect their innovative developments in adsorption technology.

How to Calculate Mass Conservation and Energy Balance

October 14, 2015

As a technical support engineer, one of the most common technical questions I receive is: “How can I compute the mass conservation of a fluid flow simulation or the energy balance of a conjugate heat transfer simulation?” This is often requested to investigate and ensure a simulation’s accuracy. Here, I will demonstrate how to perform these calculations in the COMSOL Multiphysics® software and introduce some predefined variables available for postprocessing the energy rate terms of the energy balance equation.

Creating Ultrafast Polymerase Chain Reaction Tests with LEDs

August 26, 2015

Polymerase chain reaction tests have many applications within medical and biological research. In the past, these tests have been performed within a laboratory setting due to their high power requirements and the slow speed at which results are delivered. Researchers at the University of California, Berkeley have developed a new LED-based polymerase chain reaction system that, with its simplicity and speed, could be used in point-of-care testing.

NREL Enhances Biofuel Conversion Processes with Simulation

August 10, 2015

Biofuels are recognized as a valued source of renewable energy, with applications ranging from heating buildings to powering transportation. Increasing the availability of these fuels requires an understanding of the processes behind biomass conversion. With the help of COMSOL Multiphysics® simulation software, researchers at NREL are seeking to optimize such processes, making biofuel conversion more efficient and cost-effective.

Improving Phase Change Energy Storage: A Natural Approach

July 15, 2015

Phase change energy storage is an effective approach to conserving thermal energy in a number of applications. An important element in the efficiency of this storage process is the melting rate of the phase-change material, the storage medium. Using the principle of the constructal law as their foundation, a team of researchers sought to advance the performance of these storage systems.

Optimizing the Production Process for Solar Energy Cells

July 8, 2015

Solar energy is created by combining sunlight with a semiconducting material, often silicon. But solar, or photovoltaic, cells require such a high-quality silicon that the manufacturing process is complicated and costly. As a photovoltaic material producer and furnace manufacturer, EMIX turned to COMSOL Multiphysics® simulation software to optimize their cold crucible continuous casting (4C) process and create the silicon needed for a more efficient solar-powered world.


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