Results 1 to 10 of about 26,631 (263)

Comparative efficacy of portable active cooling vs. passive cooling for reducing core temperature in exertional heat stroke: a systematic review and meta-analysis [PDF]

open access: yesFrontiers in Public Health
BackgroundExertional heat stroke (EHS) and exercise-induced hyperthermia require rapid reduction of core temperature (Tc). Portable active cooling devices are uesed in field settings where cold-water immersion (the gold standard) is not feasible, but ...
Chuankai Shi   +7 more
doaj   +2 more sources

Smart Flexible Porous Bilayer for All‐Day Dynamic Passive Cooling [PDF]

open access: yesSmall Science
Radiative cooling and evaporative cooling are sustainable cooling techniques without additional energy input. However, radiative cooling lacks dynamic cooling ability, while evaporative cooling demands external water replenishment, hindering their ...
Zuoxin Hu, Yu Qiu, Jicheng Zhou, Qing Li
doaj   +2 more sources

Passive cooling techniques for ventilation: an updated review

open access: yesRenewable Energy and Environmental Sustainability, 2022
The consumption of energy for cooling is an important issue, especially in subtropical climates where there are high temperatures and dry weather in the summer; this climate forces homeowners to use mechanical-electric cooling and ventilation.
Al-Shamkhee Dhafer   +4 more
doaj   +1 more source

Thermoregulating textiles and fibrous materials for passive radiative cooling functionality

open access: yesMaterials & Design, 2023
Developing thermoregulating textiles based on passive radiative cooling strategies has recently attracted considerable attention as an emerging means of providing localised thermoregulation for wearers.
Esfandiar Pakdel, Xungai Wang
doaj   +1 more source

Thermal Cycling in Converter IGBT Modules with Different Cooling Systems in Pitch- and Active Stall-Controlled Tidal Turbines

open access: yesEnergies, 2021
This paper compares active and passive cooling systems in tidal turbine power electronic converters. The comparison is based on the lifetime of the IGBT (insulated gate bipolar transistor) power modules, calculated from the accumulated fatigue due to ...
Faisal Wani   +3 more
doaj   +1 more source

Research on Containment Passive Heat Sink System

open access: yesYuanzineng kexue jishu, 2023
The Gen Ⅲ nuclear power plant HPR1000 possesses domestic independent intellectual property rights. Aiming at the continuous optimization, improvement and innovation research of HPR1000, a new containment passive heat sink system which can transfer the ...
SHENG Meiling;ZHANG Xin;LIANG Xiao;QIU Jinmeng
doaj   +1 more source

Innovations in Passive Downdraft Cooling Performance Evaluation Methods: Design and Construction of a Novel Environmental Test Chamber

open access: yesEnergies, 2023
Energy demand for active mechanical space cooling is projected to double by 2050. Wider adoption of passive cooling systems can help reduce demand. However, familiarity with these systems remains low, and innovation in the field is constrained due to a ...
Omar Dhia Al-Hassawi, David Drake
doaj   +1 more source

Life Cycle Saving Analysis of an Earth-Coupled Building without and with Roof Evaporative Cooling for Energy Efficient Potato Storage Application

open access: yesEnergies, 2022
Preservation of potatoes in a controlled cool environment (i.e., in cold storage) consumes a substantial amount of energy. The specific energy consumption in Indian cold storage has been estimated to be between 9 and 26 kWh/ton/year. In this article, the
Ramkishore Singh   +8 more
doaj   +1 more source

A Systematic Review of Post-Work Core Temperature Cooling Rates Conferred by Passive Rest

open access: yesBiology, 2023
Physical work increases energy expenditure, requiring a considerable elevation of metabolic rate, which causes body heat production that can cause heat stress, heat strain, and hyperthermia in the absence of adequate cooling.
Matt Brearley   +3 more
doaj   +1 more source

Passive cooling system for enhancement the energy conversion efficiency of thermo-electric generator

open access: yesEnergy Reports, 2020
This research paper examines the prospect of recovering the waste heat released from the industrial sector using thermoelectric generators. A practical case study of waste heat recovery from cement rotary kiln is applied.
Mohamed R. Gomaa, Hegazy Rezk
doaj   +1 more source

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