waste heat

Ross Goldstein: Creating cooling and dehumidification using solar thermal or waste heat

There are multiple ways to dehumidify a space — mechanical, reheat and desiccant to name a few. The biggest issue has been that conventional air conditioning units are only 10% effective at removing humidity. Until now, standard de-humidification systems were expensive to purchase and install.




waste heat

Ross Goldstein: Waste heat recovery from solar PV

A little-known fact about solar electric panels is that the hotter the panel itself, the less efficient it becomes. Studies have found a 0.05% efficiency loss for every degree of temperature that is increased. The reverse is true in that efficiency increases by 0.05% for every degree temperature decreases.




waste heat

Excellent thermomagnetic power generation for harvesting waste heat via a second-order ferromagnetic transition

Mater. Horiz., 2024, Advance Article
DOI: 10.1039/D3MH02225K, Communication
Haodong Chen, Xianliang Liu, Yao Liu, Longlong Xie, Ziyuan Yu, Kaiming Qiao, Mingze Liu, Fengxia Hu, Baogen Shen, R. V. Ramanujan, Ke Chu, Hu Zhang
NiMnIn Heusler alloys with second-order ferromagnetic transition show good thermomagnetic generation (TMG) performance with zero hysteresis and a long-term service life, enabling them to be better candidates for practical applications of TMG.
To cite this article before page numbers are assigned, use the DOI form of citation above.
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waste heat

Energy-efficient data centres? How recovered waste heat could be sold to district heating networks, Finland

Concern is growing around the issue of energy efficiency in data centres (DC) as more and more data are saved, processed, and transferred to facilitate myriad digital services worldwide. Utilising waste heat from DCs as heating for nearby districts may be a potential solution if technical and knowledge barriers are overcome, suggests this Finnish study, which identified key obstacles to this concept and possible methods of implementation.




waste heat

At Oregon Zoo, waste heat to be transferred from the tundra to the tropics

A geothermal loop will keep a fancy new elephant house toasty with the captured heat generated by the cooling system in the polar bear habitat.




waste heat

Waste heat steam generator

A waste heat steam generator for a gas and steam turbine power plant is provided. The generator has economizer, evaporator and superheater heating surfaces which form a flow path and through which a flow medium flows. An overflow line branches off from the flow path and leads to injection valves arranged downstream at a flow side of a superheater heating surface in the flow path. The overflow line permits a brief power increase of a downstream steam turbine without resulting in an excessive loss in efficiency of the steam process. The brief power increase is permitted independently of the type of waste heat steam generator. The branch location of the overflow line is arranged upstream of an evaporator heating surface at the flow medium side and downstream of an economizer heating surface.