Effects of metal mass on the performance of adsorption heat pumps utilizing zeolite 4A coatings synthesized on heat exchanger tubes

2000 ◽  
Vol 23 (4) ◽  
pp. 260-268 ◽  
Author(s):  
Melkon Tatlıer ◽  
Ayşe Erdem-Şenatalar
Keyword(s):  
Heat Exchanger ◽  
Heat Pumps ◽  
Adsorption Heat ◽  
Zeolite 4A

scholarly journals Zeolite NaY-Copper Composites Produced by Sintering Processes for Adsorption Heat Transformation—Technology, Structure and Performance

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1958
Author(s):  
Andreas Velte ◽  
Jörg Weise ◽  
Eric Laurenz ◽  
Joachim Baumeister ◽  
Gerrit Füldner
Keyword(s):  
Thermal Conductivity ◽  
Heat Exchanger ◽  
Metal Structure ◽  
Heat Pumps ◽  
Adsorption Heat ◽  
Thermal Mass ◽  
Heat Conducting ◽  
Zeolite Nay ◽  
Heat Transformation ◽  
The Impact

In adsorption heat pumps, the adsorbent is typically combined with heat conducting structures in order to ensure high power output. A new approach for the direct integration of zeolite granules into a copper structure made of short copper fibers is presented here. Zeolite NaY granules with two different grain sizes are coated with copper fibers and powder and sintered to larger structures. The sorption dynamics of these structures were measured and evaluated in terms of heat and mass transfer resistances and compared to the loose grain configuration of the same material. We found that the thermal conductivity of such a composite structure is approximately 10 times higher than the thermal conductivity of an adsorbent bed with NaY granules. Sorption equilibrium measurements with a volumetric method indicate that the maximum uptake is not altered by the manufacturing process. Furthermore, the impact of the adsorbent–metal structure on the total thermal mass of an adsorption heat exchanger is evaluated. The price of the superior thermal conductivity is a 40% higher thermal mass of the adsorption heat exchanger compared to the loose grain configuration.

Adsorber heat exchanger using Al-fumarate beads for heat-pump applications – a transport study

2021 ◽  
Author(s):  
David Farrusseng ◽  
Cécile Daniel ◽  
Conor Hamill ◽  
Jose Casaban ◽  
Terje Didriksen ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Heat Pump ◽  
Water Adsorption ◽  
Heat Pumps ◽  
Adsorption Heat ◽  
Transport Study ◽  
Cost Efficient ◽  
Scalable Synthesis ◽  
The Cost

This paper describes the cost-efficient and scalable synthesis and shaping processes of Al(OH)-fumarate beads of various sizes appropriate for use in water Adsorption Heat-Pumps (AHPs).

Composite materials based on zeolite 4A for adsorption heat pumps

Adsorption ◽  
1997 ◽  
Vol 3 (1) ◽  
pp. 33-40 ◽  
Author(s):  
L. Pino ◽  
Yu. Aristov ◽  
G. Cacciola ◽  
G. Restuccia
Keyword(s):  
Composite Materials ◽  
Heat Pumps ◽  
Adsorption Heat ◽  
Zeolite 4A

Wire fin heat exchanger using aluminium fumarate for adsorption heat pumps

2020 ◽  
Vol 164 ◽  
pp. 114426 ◽  
Author(s):  
Majdi M. Saleh ◽  
Raya Al-Dadah ◽  
Saad Mahmoud ◽  
Eman Elsayed ◽  
Osama El-Samni
Keyword(s):  
Heat Exchanger ◽  
Heat Pumps ◽  
Adsorption Heat

scholarly journals Design principles for synthesizing high grade activated carbons for adsorption heat pumps

2021 ◽  
Vol 6 ◽  
pp. 100086
Author(s):  
Mujib L. Palash ◽  
Tahmid Hasan Rupam ◽  
Animesh Pal ◽  
Anutosh Chakraborty ◽  
Bidyut Baran Saha ◽  
...  
Keyword(s):  
Activated Carbons ◽  
Design Principles ◽  
Heat Pumps ◽  
Adsorption Heat ◽  
High Grade

Effect of degree of sulfonation on the performance of adsorbent SAPO-34/S-PEEK composite coatings for adsorption heat pumps

2021 ◽  
Vol 154 ◽  
pp. 106193
Author(s):  
Davide Palamara ◽  
Paolo Bruzzaniti ◽  
Luigi Calabrese ◽  
Edoardo Proverbio
Keyword(s):  
Composite Coatings ◽  
Heat Pumps ◽  
Adsorption Heat ◽  
Peek Composite

Experimental study of 3D – structured adsorbent composites with improved heat and mass transfer for adsorption heat pumps

2021 ◽  
pp. 133365
Author(s):  
Marc Scherle ◽  
Timothy A. Nowak ◽  
Stefan Welzel ◽  
Bastian J.M. Etzold ◽  
Ulrich Nieken
Keyword(s):  
Mass Transfer ◽  
Experimental Study ◽  
Heat And Mass Transfer ◽  
Heat Pumps ◽  
Adsorption Heat

EXPERIMENTAL ANALYSIS OF INNOVATIVE HEAT EXCHANGER WITH UNIFORM HEAT FLUX USED IN HEAT PUMPS SYSTEMS

2020 ◽  
Vol 19 (12) ◽  
pp. 2231-2240
Author(s):  
Sebastian Valeriu Hudi.teanu ◽  
Marina Verde ◽  
Nelu-Cristian Chereche ◽  
Catalin George Popovici ◽  
Vasilica Ciocan ◽  
...  
Keyword(s):  
Heat Flux ◽  
Heat Exchanger ◽  
Experimental Analysis ◽  
Heat Pumps ◽  
Uniform Heat Flux ◽  
Uniform Heat
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