Index Catalog // ScholarsArchive@OSU

Experimental thermodynamic first and second law analysis of a variable output 1-4.5 kWe, ICE-driven, natural-gas fueled micro-CHP generator

Creator:: Taie, Zachary and Hagen, Christopher
Abstract:: This work experimentally assesses the thermodynamic performance of the only single kWe, variable-output continuous duty, internal combustion engine driven, residential micro-combined heat and power (mCHP generator (Marathon Engine Systems ecopower) available in the United States. The system underwent steady state testing over its full operating range, and first (energy) and...
Resource Type:: Article
Full Text:: micro-CHP generator 3 Zachary Taie*, Christopher Hagen 4 Oregon State University, School of

Development and Operation of a Self-Refueling Compressed Natural Gas Vehicle

Creator:: Elgin, Robert C., III and Hagen, Christopher L.
Abstract:: A dual-mode engine has been developed where in one mode all engine cylinders fire normally, providing locomotion for the vehicle. In the other mode, one cylinder of the engine is used to compress low pressure residential natural gas (NG), in multiple stages, to a standard U.S. compressed natural gas (CNG)...
Resource Type:: Article
Full Text:: a Self-Refueling1 Compressed Natural Gas Vehicle2 Robert C. Elgin III, Christopher L. Hagen∗3

Habitat Selection by Greater Sage-Grouse During Winter in Southeastern Oregon

Creator:: Hagen, Christian A., Willis, Mitchell J., Glenn, Elizabeth M., and Anthony, Robert G.
Abstract:: The distribution and geographic range of Greater Sage-Grouse (Centrocercus urophasianus) have been reduced by 56% since European settlement. Although loss and fragmentation of sagebrush (Artemisia spp.) habitats have been cited as the primary causes for the decline of the species, degradation of existing habitat also has been considered an important...
Resource Type:: Article
Full Text:: ); however, habitat use during winter has not been thoroughly described throughout the species’ range (Hagen

Microhabitat selection of brood-rearing sites by greater sage-grouse in Carbon County, Wyoming

Creator:: Schreiber, Leslie A.
Abstract:: Declines in Greater Sage-Grouse (Centrocercus urophasianus, hereafter sage-grouse) populations could be attributed to low chick survival, which may be influenced by the availability of food and cover at sites used by females rearing broods. Habitat attributes important to broods may vary regionally; thus, it is necessary to understand factors affecting...
Resource Type:: Article
Full Text:: Leslie A. Schreiber1,5, Christopher P. Hansen1, Mark A. Rumble2, Joshua J. Millspaugh1, R. Scott Gamo3

Fourier-Transform Infrared Absorption Spectroscopy in Binary Hydrocarbon-Alcohol Single Droplet Evaporation

Creator:: Daly, Shane R., Olson, Nicholas, and Hagen, Christopher L.
Abstract:: Broadband absorption spectroscopy, by way of FTIR, was used to investigate the vapor cloud of a single millimeter sized liquid droplet suspended by a syringe as it evaporates at standard conditions. Single beam data were collected every 8 seconds resulting in a time-resolved record. Species concentrations were tracked using their...
Resource Type:: Article
Full Text:: Olson, and Christopher L. Hagen Energy Systems Laboratory, School of Mechanical, Industrial and

A Novel Fuel Performance Index for Low-Temperature Combustion Engines Based on Operating Envelopes in Light-Duty Driving Cycle Simulations

Creator:: Niemeyer, Kyle E., Daly, Shane R., Cannella, William J., and Hagen, Christopher L.
Abstract:: Low-temperature combustion (LTC) engine concepts such as homogeneous charge compression ignition (HCCI) offer the potential of improved efficiency and reduced emissions of NOₓ and particulates. However, engines can only successfully operate in HCCI mode for limited operating ranges that vary depending on the fuel composition. Unfortunately, traditional ratings such as...
Resource Type:: Article
Full Text:: @chevron.com Christopher L. Hagen School of Mechanical, Industrial, and Manufacturing Engineering Oregon

Investigation of the LTC fuel performance index for oxygenated reference fuel blends

Creator:: Niemeyer, Kyle E., Daly, Shane R., Cannella, William J., and Hagen, Christopher L.
Abstract:: A new metric for ranking the suitability of fuels in LTC engines was recently introduced, based on the fraction of potential fuel savings achieved in the FTP-75 light-duty vehicle driving cycle. In the current study, this LTC fuel performance index was calculated computationally and analyzed for a number of fuel...
Resource Type:: Article
Full Text:: oxygenated reference fuel blends Niemeyer, K. E., Daly, S. R., Cannella, W. J., & Hagen, C. L. (2015

Predicting fuel research octane number using Fourier-transform infrared absorption spectra of neat hydrocarbons

Creator:: Daly, Shane R., Niemeyer, Kyle E., Cannella, William J., and Hagen, Christopher L.
Abstract:: Liquid transportation fuels require costly and time-consuming tests to characterize metrics, such as Research Octane Number (RON) for gasoline. If fuel sale restrictions requiring use of standard Cooperative Fuel Research (CFR) testing procedures do not apply, these tests may be avoided by using multivariate statistical models to predict RON and...
Resource Type:: Article
Full Text:: regression ∗Corresponding author Email address: chris.hagen@oregonstate.edu (Christopher L. Hagen) Preprint

Design considerations for small scale rotating fluidized beds in static geometry with screens for fine particles

Creator:: Lavrich, Zoe, Wagner, David R., Taie, Zachary, Halliday, Devin, and Hagen, Christopher L.
Abstract:: Design of a small scale rotating fluidized bed (RFB) with diameter of 4-6 cm to fluidize 40-80 mu m diameter particles was investigated using computational fluid dynamics (CFD). Simulations explored the impact of the following components on pressure drop and fluidized behavior of the device: particle size, particle density, outer...
Resource Type:: Article
Full Text:: A R R A A K R S V C P 1 T 2 c fi e a o E t a 1 t l s h 0 Chemical

Greater Sage-grouse conservation assessment and strategy for Oregon: A plan to maintain and enhance populations and habitat

Creator:: Hagen, Christian
Abstract:: Greater sage-grouse (Centrocercus urophasianus) were once found in most grassland and sagebrush (Artemisia spp.) habitats east of the Cascades in Oregon. European settlement and conversion of sagebrush steppe into agricultural production led to extirpation of the species in the Columbia Basin by the early part of the 1900s, but sagebrush...
Resource Type:: Technical Report
Full Text:: Habitat April 2011 Author: *Christian Hagen, Oregon Department of Fish and Wildlife, Bend

ScholarsArchive@OSU

Experimental thermodynamic first and second law analysis of a variable output 1-4.5 kWe, ICE-driven, natural-gas fueled micro-CHP generator

Development and Operation of a Self-Refueling Compressed Natural Gas Vehicle

Habitat Selection by Greater Sage-Grouse During Winter in Southeastern Oregon

Microhabitat selection of brood-rearing sites by greater sage-grouse in Carbon County, Wyoming

Fourier-Transform Infrared Absorption Spectroscopy in Binary Hydrocarbon-Alcohol Single Droplet Evaporation

A Novel Fuel Performance Index for Low-Temperature Combustion Engines Based on Operating Envelopes in Light-Duty Driving Cycle Simulations

Investigation of the LTC fuel performance index for oxygenated reference fuel blends

Predicting fuel research octane number using Fourier-transform infrared absorption spectra of neat hydrocarbons

Design considerations for small scale rotating fluidized beds in static geometry with screens for fine particles

Greater Sage-grouse conservation assessment and strategy for Oregon: A plan to maintain and enhance populations and habitat

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