Papers – Page 23 – TechConnect Briefs

PVDF based polymer nanocomposite coatings for large area applications

Tiwari M.K., Bayer I.S., Megaridis C.M., University of Illinois at Chicago, US

A class of polymer nanocomposites consisting of all biocompatible components has been developed for large area coating applications. The coatings are made possible by solution blending of poly (vinylidine fluoride) (PVDF) with polymerized ethyl cyanoacrylate. [...]

Hierarchical Superhydrophobic Surfaces Resist Water Droplet Impact

Varanasi K.K., Deng T., Hsu M., Bhate N., Massachusetts Institute of Technology, US

In this paper, we present static and dynamic wetting interactions of water droplets on a variety of superhydrophobic surfaces. For sessile droplets, wetting states were determined by measuring contact angles and comparing them to that [...]

Nanostructured and Self-Assembled Superhydrophilic Bipolar Plate Coatings for Fuel Cell Water Management

Dadheech G., Abd Elhamid M., Blunk R., General Motors Corporation, US

A stably superhydrophilic coating is required on composite and metal bipolar plates to manage byproduct liquid water and, in turn, to enable good PEM fuel cell performace under low power vehicle operating conditions. Silica-based coatings, [...]

Effects of Surface Texture and Chemistry on Surface Hydrophobicity and Oleophobicity

Law K-Y, Zhao H., Sambhy V., Xerox Corporation, US

The effects of surface texture and chemical modification on the hydrophobicity and oleophobicity of the resulting surfaces have been systematically investigated. The surface textures were created by the conventional photolithographic technique on Silicon wafer. This [...]

Measured and predicted performance of a micro-thermophotovoltaic device with a heat-recirculating micro-emitter

Park J.H., So J.S., Moon H.J., Kwon O.C., Sungkyunkwan University, KR

A new configuration of a 1-10 W micro-thermophotovoltaic (micro-TPV) device with a heat-recirculating micro-emitter is studied experimentally and computationally. In the micro-TPV device thermal energy is directly converted into electrical energy through thermal radiation without [...]

Technical and Economical Analysis of Photovoltaic Pumping Systems with V Type Concentrators in Irrigation System to Productive Chains

Bione J.M., Fraidenraich N., Vilela O.C., Universidade de Pernambuco - Escola Politécnica, BR

This paper presents the dimensioning of a photovoltaic pumping system with concentrator type V (SBFV) for irrigation of a culture in the semi-arid area of the Northeast of Brazil. The elaboration, an analysis of the [...]

Design and Analysis of a New Energy Harvesting Device Based on Knudsen Effect

Zhang P., Du R., The Chinese University of HongKong, CN

In this paper, a new energy harvesting method based on Knudsen compressor is proposed. We first study the possibility of Knudsen compressor working in near atmosphere pressure by Direct Simulation Monte Carlo (DSMC) method which [...]

Multi Solar (PVT) Air Conditioning System

Elazari A., Millennium Electric Ltd., IL

A new innovation technology includes Multi Solar Air Conditioning system using the Multi Solar (PV/T) Collectors System and an Air conditioning unit that using the excessive solar thermal energy produced by the Multi Solar System [...]

Organic PV Cells, Electricity Collected from Plant Photosynthesis – Feasibility and Demonstration

Elazari A., Millennium Electric Ltd., IL

BACKGROUNG&OBJECTIVES This project is to demonstrate and develop new potential source of natural energy (electricity) by photosynthesis, and directly from living plant. METHOD The electricity capacity will be evaluated based on various plants nature, and [...]

Simple Low-CosSimple Low-Cost Technology of Silicon Solar Cells and PV Modules Fabrication

Bruk L., Simashkevich A., Sherban D., Usatii Yu., Morvillo P., Bobeico E., Fedorov V., Institute of Applied Physics, MD

The main purpose of this work is to demonstrate the possibility of fabrication of SC and solar modules based on SIS structures using spray pyrolisis technique. Thin films, deposited at 450oC on the nSi crystals [...]