Solar industrial process heat (SIPH) technologies, such as concentrating solar power collectors, could economically replace the steam or needs at many sites by providing high-temperature transfer fluids (HTFs) pressurized water, synthetic-oil, direct steam. Renewable thermal energy systems (RTES) be hybridized with different renewable options e.g., flat plate collectors parabolic trough combine...

A simple stochastic up-scaling strategy is presented for incorporating the effects of micro-scale variations of thermal conductivity in the thermal analysis of macro-scale systems. Incomplete characterization of the fine-scale variation necessitates posing the thermal conductivity as a stochastic multiscale random field. A data-driven approach coupled with a non-linear dimension reduction algor...

We present results of a renormalization-group calculation of the thermal conductivity of confined He in a L ×∞ geometry above and at Tλ within model F with Dirichlet boundary conditions for the order parameter. We assume a heat flow parallel to the boundaries which implies Neumann boundary conditions for the entropy density. No adjustable parameters other than those known from bulk theory and s...

Graphene and related two-dimensional crystals and hybrid systems showcase several key properties that can address emerging energy needs, in particular for the ever growing market of portable and wearable energy conversion and storage devices. Graphene's flexibility, large surface area, and chemical stability, combined with its excellent electrical and thermal conductivity, make it promising as ...

This paper investigates briefly the integrated portable reinforcement machine structure design and introduces its design and train of thought. The authors also discuss design methods in engineering applications, as well as how to achieve good heat dissipation effect and enhance the electromagnetic compatibility. The whole machine, with its small volume, good adaptability to environment, and ele...

So far, the torrefaction process has been merely discussed based on physical and chemical characteristics of final product, but mechanism not yet pondered investigated. Thus microwave predominately used for thermal pre-treatment; therefore, a paradigm shift in methodology introduced by using Joule heating system. The article mainly focuses engineering aspect process. densified black pine underw...

Micromachined resistors are thermal transducers that can be used to measure air and water flow rate. For the thermal resistor to function as a flow sensor, the electrical resistivity must be a strong function of temperature it must be sufficiently thermally isolated from the supports and substrate. The thermal resistor can be made of a metal or doped semiconductor and can thermally isolated by ...