Results 71 to 80 of about 930,857 (211)

Simulating the Performance of a Heat Exchanger During Frosting [PDF]

open access: yes, 2001
Factors affecting frost distribution are explored using a finite element model, developed and validated using a full-scale 8-row heat exchanger in a wind tunnel.
Bullard, C.W., Hrnjak, P.S., Verma, P.
core  

Relationship between chevron angle and heat transfer performance of plate heat exchangers

open access: yesCase Studies in Thermal Engineering
The chevron angle (β) of a plate heat exchanger significantly affects its heat transfer performance. This study aims to quantify the relation between heat transfer performance and chevron angle.
Xiaowei Zhu
doaj   +1 more source

Performance Enhancement of Convective Heat Transfer in Double Pipe Heat Exchangers using Different Vortex Generators’ Configurations [PDF]

open access: yesE3S Web of Conferences
Double-pipe heat exchangers (DPHEs) are important devices used for efficient heat transfer between fluids, affecting system energy Performance. This study explores different configurations for the integration of vortex generators (VGs) into DPHEs to ...
El Hassan Mouhammad   +4 more
doaj   +1 more source

Experimental Investigation of Heat Transfer Performance of Rotating Heat Pipe

open access: yesProcedia Engineering, 2015
AbstractThis study is an experimental investigation of heat transfer performance of rotating heat pipe. The experiments are performed for a rotating heat pipe and a no heat pipe. The geometry of the two pipes is the same. The test conditions of the two experiments are the same too. The temperature distributions along the evaporator and the condenser of
Xie, Minghui   +3 more
openaire   +1 more source

Numerical investigation of laminar flow heat transfer through helically coiled tubes using Al2O3 nanofluid [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011)   +4 more
core  

Cooling and heating season performance of an open counterflow heat-source tower heat pump system in high-humidity climates: An experimental and numerical study.

open access: yesPLoS ONE
The cooling and heating season performance of an open counterflow heat-source tower heat pump (HTHP) system in high-humidity climates is investigated through an integrated experimental and numerical study, focusing on its year-round operation under ...
Xinhao Liu   +4 more
doaj   +1 more source

Sintered Wick Heat Pipes with Excellent Heat Transfer Capabilities—Case Study

open access: yesEnergies
A sintered wick was formed in a heat pipe through the process of sintering a mixture of copper powder with particle sizes of 100 µm and 200 µm, mixed with a pore-forming agent.
Im-Nam Jang, Yong-Sik Ahn
doaj   +1 more source

Exergy optimisation for cascaded thermal storage [PDF]

open access: yes
Cascaded thermal storage, consisting of multiple Phase Change Materials (PCMs) with different melting temperatures, has been proposed to solve the problem of poor heat transfer caused by unavoidable decrease of temperature differences during heat ...
Lapkin, Alexei   +2 more
core  

An Evaluation of Heat Exchangers Using System Information and PEC [PDF]

open access: yes, 2000
This report describes analyses aimed at integrating component optimization and system design by developing heat-exchanger performance evaluation criteria (PEC) that account for the system-level performance impacts of heat exchanger design. It builds on
Bullard, C.W., Jacobi, A.M., Pira, J.V.
core  

Research on the Heat Transfer Performance of Phase Change Heat Storage Heat Exchangers Based on Heat Transfer Optimization

open access: yesEnergies
Thermal storage technology has received increasing attention under the policy of encouraging the development of renewable energy and new clean energy. Optimizing the heat exchange system of phase change thermal storage heat exchangers to obtain better performance has become increasingly urgent. This study comprehensively investigated the actual process
Xiaodong Dong, Chuanhui Zhu
openaire   +2 more sources

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