Results 31 to 40 of about 28,453 (289)
Advanced Functional Materials, EarlyView.Inspired by skeletal muscles’ precision and endurance, CoilLCE integrates a self‐sensing liquid crystal elastomer/graphene artificial muscle with an embedded Joule‐heating copper coil, enabling closed‐loop multistage actuation with programmable intermediate states (strain accuracy of 2%), and antagonistic coordination (32% total strain). These features
Ziyun Zhang +9 more
wiley +1 more source
Fossil energy reduction for heating and cooling of buildings using shallow geothermal integrated ene
Journal of Thermal Engineering, 2023 Ground source heat pumps (GSHP) are a very efficient system for space heating and cooling, and it was established in 1904. GSHPs can minimize the environmental effect of buildings by using the ground as a renewable energy source. The ground will act as a
Balaji KUMAR
doaj +1 more source
Advanced Functional Materials, EarlyView.Encapsulation of solid–liquid barocalorics (BC) within MOFs harnesses their colossal BC performance whilst allowing active control of BC properties through BC‐MOF interactions. ABSTRACT Barocaloric (BC) effects at liquid–vapor transitions in hydrofluorocarbons drive most commercial technologies used for heating and cooling in the heating, ventilation ...
Ming Zeng +8 more
wiley +1 more source
A Homogeneous Capillary Tube Model - Comprehensive Parameter Studies Using Isobutane As Refrigerant [PDF]
, 2012 In this work a homogenous capillary tube model using R600a (isobutane) as refrigerant is presented. The capillary tube model underlies common restrictions; it is assumed to be adiabatic, straight with constant cross section and operates under steady ...
Lang, Wolfgang +3 more
core +1 more source
Experimental and analytical investigation of refrigerant and lubricant migration [PDF]
, 2010 The off-cycle refrigerant mass migration has a direct influence on the on-cycle performance since compressor energy is necessary to redistribute the refrigerant mass.
Peuker, Steffen
core
Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride
Advanced Functional Materials, EarlyView.This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem +15 more
wiley +1 more source
Numerical Simulation of Minichannel and Microchannel Evaporators with Headers and Louvered Fins— Investigating the Thermal-Hydraulic Performance of New Refrigerant Mixtures [PDF]
, 2012 The need for more compact and more efficient heat exchangers in the aerospace, automotive, and HVAC&R industries has led to the development of heat exchangers that utilize minichannel or microchannel tubes coupled with louvered fins.
Ramalingam, Mysore +3 more
core +1 more source
Flame Suppression Effects of Binary Extinguishants on the Flammability of HFO-1243zf
Zhileng xuebao, 2023 HFO-1243zf (R1243zf) is a refrigerant with a low global warming effect and high development potential. The safety classification of R1243zf is A2; therefore, its flammability cannot be ignored.
Wu Xi +4 more
doaj
Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators
Advanced Materials, EarlyView.Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng +11 more
wiley +1 more source
Novel Calculation Method of Two Phase Refrigerant Mass in Air Cooled Heat Exchanger
Zhileng xuebao, 2012 When compressor starts and doesn’t reach stable, the two phase refrigerant mass calculation should consider the affection of non-linear quality distribution.
Lin Enxin +3 more
doaj