Results 21 to 30 of about 115,365 (294)

A review on opportunities for the development of heat pump drying systems in South Africa

open access: yesSouth African Journal of Science, 2014
Recently, it has been discovered that heat pump drying is an efficient method of drying for drying industries. Heat pumps deliver more heat during the drying process than the work input to the compressor.
Thomas Kivevele, Zhongjie Huan
doaj   +1 more source

Optimization of carrot heat pump drying process by response surface methodology

open access: yesShipin yu jixie, 2022
Objective: This study focuses on optimizing the heat pump drying process of carrot. Methods: On the basis of single factor experiment, Box-Behnken experiment was designed.
PENG Yu-hang   +3 more
doaj   +1 more source

Performance of Low Power Electric Energy Clothes Dryers for Households

open access: yesInternational Journal of Applied Sciences and Smart Technologies, 2023
One of the problems faced by middle to lower economic class people in big cities is drying clothes, both in the dry season and in the rainy season. Artificial clothes drying equipment is needed that can replace the role of solar energy.
Doddy Purwadianto, Budi Sugiharto
doaj   +1 more source

A Fast Drying Machine Based On Semiconductor Heat Pump [PDF]

open access: yesE3S Web of Conferences, 2021
The new latent heat recovery type semiconductor heat pump ground fast dryer is a kind of integrated semiconductor refrigeration module on the traditional dryer.
Wang Fengzhe
doaj   +1 more source

Monolith formation and ring-stain suppression in low-pressure evaporation of poly(ethylene oxide) droplets [PDF]

open access: yes, 2012
When droplets of dilute suspensions are left to evaporate the final dry residue is typically the familiar coffee-ring stain, with nearly all material deposited at the initial triple line (Deegan et al, Nature, vol. 389, 1997, pp. 827-829).
David J. Fairhurst   +6 more
core   +1 more source

How robust is the ring stain for evaporating suspension droplets? [PDF]

open access: yes, 2013
The ring stain is commonly seen when droplets containing particles, such as coffee, are left to dry on a surface: a pinned contact line leads to outward radial flow, which is enhanced by the diverging evaporative flux at the contact line.
Fairhurst, DJ, Msambwa, Y, Ouali, FF
core   +1 more source

Numerical Analysis and Preliminary Experiment of a Solar Assisted Heat Pump Drying System for Chinese Wolfberry

open access: yesEnergies, 2020
The present work investigated a solar assisted heat pump system for drying Chinese wolfberry. The kinetic characteristic was firstly analyzed through a series of lab experiments.
Zhongting Hu   +5 more
doaj   +1 more source

Analysis and modeling of pitaya slices in a heat pump drying system

open access: yesOpen Physics, 2022
The objective of this article was to investigate the drying kinetics, effective moisture diffusivity, and quality of pitaya in the heat pump drying process.
Zhang Zhenya, Han Lucong, Jin Tingxiang
doaj   +1 more source

Effect of airflow on Heat Pump in drying mode

open access: yesJournal of Physics: Conference Series, 2021
Abstract Manufacturers develop new technologies to process sensitive food materials to supply new products with improved properties and high quality. Heat pump technologies for drying can contribute to increased productivity, product quality, environmental and energy-saving benefits.
H V Sihombing   +3 more
openaire   +1 more source

Temperature Field Simulation and Energy Analysis of a Heat Pump Tobacco Bulk Curing Barn

open access: yesEnergies, 2022
Recently, heat pump drying has been widely used in tobacco processing. Considering the importance of this issue, it is of significant importance to further investigate temperature distribution and energy analysis in the drying process.
Ye Zhang   +7 more
doaj   +1 more source

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