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Displaying records 31 to 40 of 52 records.
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31. Input-Output Approach to Predicting the Energy Efficiency of Residential Water Heaters ‹ Testing of Gas Tankless and Electric Storage Water Heaters
Topic: Energy Conservation
Published: 11/1/2011
Authors: William M Healy, Tania Ullah, John F Roller
Abstract: A study was conducted to evaluate the potential for using a linear relationship between the power input to a residential water heater and the output of thermal energy in hot water for rating the unit‰s energy efficiency. This approach has the potent ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906851

32. Large-area irradiance-mode spectral response measurements of solar cells by a light-emitting-diode- based integrating sphere source
Topic: Energy Conservation
Published: 5/30/2014
Authors: Behrang H Hamadani, John F Roller, Andrew M Shore, Brian P Dougherty, Howard W Yoon
Abstract: An irradiance-mode absolute differential spectral response measurement system based on a light emitting diode (LED) array is described. The LEDs are coupled to an integrating sphere whose output irradiance is uniform to better than 2 % over an ar ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915298

33. Life-Cycle Carbon and Cost Analysis of Energy Efficiency Measures in New Commercial Buildings
Topic: Energy Conservation
Published: 3/1/2010
Author: Joshua D Kneifel
Abstract: Building energy efficiency has become a top priority due to the recent energy price spikes and increasing concern regarding climate change. It is easier and less costly to increase energy efficiency in new buildings than in existing buildings, making ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903351

34. Measurement Challenges in Achieving Energy Monitoring Systems in Buildings
Series: Technical Note (NIST TN)
Report Number: 1656
Topic: Energy Conservation
Published: 3/3/2010
Author: William M Healy
Abstract: The benefits of energy conserving approaches in buildings are often not apparent to building occupants because of the insufficient feedback provided regarding energy consumption. A review of the literature suggests that energy feedback devices can p ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904372

35. Method to determine the absorbance of thin films for photovoltaic technology
Topic: Energy Conservation
Published: 6/20/2010
Authors: Nathan A Tomlin, John H Lehman, Katherine E. Hurst, D. B. Tanner, K. Kamaras, Aron Pekker
Abstract: We have demonstrated a novel method to determine optical properties of opaque or semi-transparent films for photovoltaic (PV) applications. Such films may be the basis of transparent conductors or photoconductive material. As an example, we measure t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904965

36. Micro Effects for Single Phase Pressure Drop In Microchannels
Topic: Energy Conservation
Published: 3/3/2008
Authors: Dong H. Han, Mark A Kedzierski
Abstract: This paper investigates the significance of several micro-effects that have been proposed to influence pressure drop measurements in microchannels. Pressure drop measurements were made for liquid flow within tubular microchannels nominally ranging i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=861000

37. Nanolubricants for Improving Chiller Performance
Topic: Energy Conservation
Published: 9/30/2011
Author: Mark A Kedzierski
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907938

38. National Voluntary Laboratory Accreditation Program (NVLAP) Efficiency of Electric Motors
Series: Handbook (NIST HB)
Report Number: 150-10
Topic: Energy Conservation
Published: 5/9/2013
Author: Timothy W Rasinski
Abstract: NIST Handbook 150-10 presents technical requirements and guidance for the accreditation of laboratories under the National Voluntary Laboratory Accreditation Program (NVLAP) Efficiency of Electric Motors program. It is intended for information and u ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913269

39. Normalized Performance Parameters for a Residential Heat Pump in the Cooling Mode with Single Faults Imposed
Topic: Energy Conservation
Published: 3/3/2014
Authors: William V Payne, Jin Min Cho, Piotr A Domanski
Abstract: The performance of a residential split heat pump in the cooling mode operating under nine faults was described using normalized performance parameters determined from a ratio of the faulty value to the no-fault value obtained from heat pump tests in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910617

40. On the 60 mV/dec @300 K Limit for MOSFET Subthreshold Swing
Topic: Energy Conservation
Published: 4/26/2010
Author: Kin P Cheung
Abstract: The 60 mV/dec limit for subthreshold swing at 300K is generally considered a fundamental limit that cannot be defeated. The physical origin of this limit is revisited in this paper and the fact that this limit is in part determined by the density-ofs ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=904995



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