Microencapsulated phase-change materials as heat transfer media in gas-fluidized beds

Brown, Robert C.; Rasberry, John D.; Overmann, Scott P.

doi:10.1016/s0032-5910(98)00080-1

Cited by 66 publications

(36 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Merry and Rubinsky [14] studied the heat transfer coefficients for a surface immersed in a two-dimensional fluidized bed of solid-to-solid phase transition material particles with a mean diameter of 0.4 mm that were fluidized with air. Heat transfer coefficients were also studied by Brown et al [15] in a cylindrical gas-fluidized bed containing several types of micro-encapsulated phase change materials undergoing solid-liquid transitions, with nominal diameters ranging from 140 to 655 µm.…”

Section: Introductionmentioning

confidence: 99%

Thermal energy storage in a fluidized bed of PCM

Izquierdo-Barrientos

Sobrino

Almendros-Ibáñez

2013

Chemical Engineering Journal

View full text Add to dashboard Cite

The objective of the present work was to research the storage behavior of a fluidized bed filled with a granular phase change material (PCM) with a small particle diameter (d p = 0.54 mm). The performance of the fluidized bed was compared to that of well-known storage methods such as fluidized beds with sand and packed beds based of sand and PCM. For this purpose, heating experiments were conducted in a cylindrical bed with air as the working fluid.The influence of the bed height and flow rate on the storage and recovery efficiencies of the fluidized bed of PCM was analyzed. Additionally, the stability of the PCM during various charging-discharging cycles was studied.The results indicate that this PCM is an alternative material that can be used in fluidized bed systems to increase the efficiency of storing thermal * Corresponding author. NOTICE: this is the author's version of a work that was accepted for publication in Chemical Engineering Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The cycling test shows that the PCM is stable under bubbling conditions up to 15 cycles, which corresponds to approximately 75 hours of continuous operation. A definitive version was subsequently published in Chemical Engineering

show abstract

Section: Introductionmentioning

confidence: 99%

Thermal energy storage in a fluidized bed of PCM

Izquierdo-Barrientos

Sobrino

Almendros-Ibáñez

2013

Chemical Engineering Journal

View full text Add to dashboard Cite

show abstract

“…3 The microencapsulation of PCMs involves enclosing them in thin and resilient polymer shells so that the PCMs can be changed from solid to liquid and back again within the shells. Microencapsulated PCMs have been applied in many fields, including textiles, 4 -6 heat storage systems for buildings, 7,8 and microclimate environmental control for vegetation and seeds in agriculture. 9 In applications of PCM technology to garments and home furnishing products, PCM microcapsules are incorporated into acrylic fibers or polyurethane foams or are embedded into coating compounds and topically applied to fabrics or foams.…”

Section: Introductionmentioning

confidence: 99%

Development of thermoregulating textile materials with microencapsulated phase change materials (PCM). II. Preparation and application of PCM microcapsules

Shin

Yoo

Son

2005

J of Applied Polymer Sci

219

117

View full text Add to dashboard Cite

Melamine-formaldehyde microcapsules containing eicosane were prepared by in situ polymerization. The characterization of the microcapsules, including the particle size and size distribution, morphology, thermal properties, and stability, was carried out. The prepared microcapsules were added to polyester knit fabrics by a conventional pad-dry-cure process to develop thermoregulating textile materials. The morphology, thermal properties, and laundering properties of the treated fabrics were also investigated. The microcapsules were spherical and had melamine-formaldehyde shells containing eicosane. The microcapsules were strong enough to secure capsule stability under stirring in hot water and alkaline solutions. The heat storage capacity increased as the concentration of the microcapsules increased. The thermoregulating fabrics had heat storage capacities of 0.91-4.44 J/g, which depended on the concentration of the microcapsules. The treated fabrics retained 40% of their heat storage capacity after five launderings.

show abstract

“…Microcapsule은 수분이나 오염 등의 외부 요인들 로부터 내부물질을 보호할 수 있고 저장수명이 길어 지는 등의 여러 가지 장점을 갖고 있기 때문에 도료, 제약산업, 농약, 접착제 등의 다양한 분야에서 적용연 구가 진행되고 있다 [1][2][3][4][5][6][7].…”

Section: )unclassified

Study on Adhesion and Mechanical Properties of Adhesive Resin Using Microcapsule with Isocyanate Compound

Kim¹,

Kim²

2014

Adhesion and Interface

View full text Add to dashboard Cite

Abstract:In this study, we synthesized and identified microcapsule containing isocyanate, and investigated the mechanical and adhesion properties of polyurethane resin by adding microcapsule. We found out that the core material of microcapsule and the component weight fraction of microcapsule from the FT-IR and TGA analysis. From the results of adhesion and mechanical property tests, we confirmed that in case of using microcapsule for adhesive resin composition, adhesion strength, tensile strength and abrasion were improved by cross-linking reaction between urethane and IPDI in microcapsule. Keywords

show abstract

Microencapsulated phase-change materials as heat transfer media in gas-fluidized beds

Cited by 66 publications

References 4 publications

Thermal energy storage in a fluidized bed of PCM

Thermal energy storage in a fluidized bed of PCM

Development of thermoregulating textile materials with microencapsulated phase change materials (PCM). II. Preparation and application of PCM microcapsules

Study on Adhesion and Mechanical Properties of Adhesive Resin Using Microcapsule with Isocyanate Compound

Contact Info

Product

Resources

About