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Buildings & Construction

Energy efficiency

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Displaying 226 - 250 of 560

Performance Monitoring of Chilled Water Distribution Systems using HVAC-Cx

July 30, 2017
Author(s)
Natascha S. Milesi-Ferretti, Michael A. Galler, Steven T. Bushby
Automated commissioning tools facilitate an ongoing commissioning process to improve occupant comfort, ensure the persistence of correct system operation, and reduce energy consumption. These tools decrease the time and the skill level required to carry

Application of the Advanced Distillation Curve Method to the Comparison of Diesel Fuel Oxygenates: 2,5,7,10-Tetraoxaundecane (TOU), 2,4,7,9-Tetraoxadecane (TOD), and Ethanol/Fatty Acid Methyl Ester (FAME) Mixtures

June 22, 2017
Author(s)
Jessica L. Burger, Tara M. Lovestead, Mark LaFollette, Thomas J. Bruno
Although they are amongst the most efficient engine types, compression-ignition engines have difficulties achieving acceptable particulate emission and NOx formation. Indeed, catalytic after-treatment of diesel exhaust has become common and current efforts

Dynamic Appliances Scheduling in Collaborative MicroGrids System

May 1, 2017
Author(s)
Hamid Gharavi, Hasnae Bilil
Abstract—In this paper a new approach which is based on a collaborative system of MicroGrids (MG’s), is proposed to enable household appliance scheduling. To achieve this, appliances are categorized into flexible and non-flexible Deferrable Loads (DL’s)

Nanoscale Imaging and Spectroscopy of Band Gap and defects in Polycrystalline Photovoltaic Devices

April 12, 2017
Author(s)
Yohan Yoon, Jungseok Chae, Aaron M. Katzenmeyer, Heayoung Yoon, Joshua D. Schumacher, Sang M. An, Andrea Centrone, Nikolai B. Zhitenev
Improving the power conversion efficiency of photovoltaic (PV) devices is challenging because the generation, separation and collection of electron-hole pairs in PV devices is strongly dependent on details of the nanoscale chemical composition and defects

Performance Data from the NIST Net-Zero Energy Residential Test Facility

January 17, 2017
Author(s)
William M. Healy, Arthur H. Fanney, Brian P. Dougherty, Lisa C. Ng, William V. Payne, Tania Ullah, Farhad Omar
Data were collected over two separate year-long test periods at the Net-Zero Energy Residential Test Facility, a laboratory that is designed to evaluate a variety of technologies and operational strategies that lead to energy efficient houses with
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