This work deals with an experimental inv estigation of the conv ectiv e heat transfer and pressu re loss in a rectangular channel with discrete flush-mounted and protruding heat sources. Six protruding obstacle heights, which represen t the range of the dimensionless protrusion of 0 F h r H F 0.805, are studied in this work. The temperatures on the heater surfaces and that of the fluid are coll...

The power dissipation levels in high performance personal computers continue to increase rapidly while the silicon die temperature requirements remain unchanged or have been lowered. Advanced air cooling solutions for the major heat sources such as CPU and GPU modules use heat pipes and high flow rate fans to manage the heat load at the expense of significant increases in the sound power emitte...

This paper reviews materials for thermoelectric waste heat recovery, and discusses selected industrial and distributed waste heat sources as well as recovery methods that are currently applied. Thermoelectric properties, especially electrical conductivity, thermopower, thermal conductivity and the thermoelectric figures of merit, are considered when evaluating thermoelectric materials for waste...

Low-grade heat from sources below 100 C o ers a vast quantity of energy. The ability to extract this energy, however, is limited with existing technologies as they are not well-suited to harvest energy from sources with variable heat output or with a small temperature di erence between the source and the environment. Here, we present a process for extracting energy from low-grade heat sources u...

District heating can provide cost-effective and low-carbon energy to local populations, such as space heating in winter and year-round hot/cold water; this is also associated with electricity generation in combined-heat-and-power systems. Although this is currently rare in the UK, many legislative policies, including the Renewable Heat Incentive, aim to increase the amount of energy from such s...