Search
Now showing items 21-30 of 84
Numerical Simulation of Direct Expansion Solar-Assisted Heat Pump Water Heater Using Carbon Dioxide as Refrigerant
(North Dakota State University, 2013)
Compared to the conventional solar-assisted heat pump (SAHP) water heating system, a relatively more compact direct-expansion solar assisted heat pump (DX-SAHP) has been introduced, in which the solar collector acts as an ...
Numerical Analysis of a PV/Microchannel Integrated CO2 Direct-Expansion Heat Pump Water Heater
(North Dakota State University, 2019)
A steady-state numerical model of a PV/microchannel integrated direct-expansion CO2 heat pump (PV-DXHP) water heater is developed, validated, and analyzed in the present study. To accomplish the objectives, a numerical ...
Experimental Investigation of the Temperature Effects on the Behavior of Adhesively-Bonded Dissimilar Materials
(North Dakota State University, 2017)
The effects of temperature on the fatigue and low velocity impact (LVI) behaviors of adhesively-bonded single-lap joints (SLJs) composed of a pultruded E-glass/polyurethane composite bonded to 5052 aluminum and A36 steel ...
Method for Compliance Controlled Adhesive Switching and Magnetically Controlled Switchable Adhesives
(North Dakota State University, 2013)
Adhesives are used in a variety of ways and are so common that they are easily overlooked. Adhesive hooks, tapes, glues, and switchable climbing mechanisms used by insects and lizards are clear examples of how adhesives ...
Fatigue Analysis of Arteries Using Finite Element Method
(North Dakota State University, 2012)
In this thesis, the fatigue response of arteries to four specific physiological conditions representative of various morphological changes that artery undergo during its lifetime, was explored. Single layered nonlinear ...
Characterizing the Operation of a Dual-Fuel Diesel-Hydrogen Engine near the Knock Limit
(North Dakota State University, 2014)
A CAT C6.6 turbocharged diesel engine was operated in dual-fuel diesel-hydrogen mode. Hydrogen was inducted into the intake and replaced a portion of the diesel fuel. Hydrogen was added across multiple engine speeds and ...
Theoretical and Experimental Studies of Droplets Wetting on Micronano-Fibrous Materials and their Applications in Oil-Water Separation
(North Dakota State University, 2013)
This research was aimed at the theoretical and experimental investigation of wetting behavior of immiscible droplets sitting on filaments and related applications in oil-water separation. This work consisted of three ...
Computational Investigation of Low-Pressure Turbine Aerodynamics
(North Dakota State University, 2015)
The design of today’s gas turbine engines is heavily reliant on accurate computational fluid flow models. Creating prototype designs is far more expensive than modeling the design on a computer; however, current turbulence ...
Stress-Function Variational Methods for Stress Analysis of Composite Laminates and Adhesively Bonded Composite Joints
(North Dakota State University, 2015)
Adhesively bonded composite joints (ABCJs) have been broadly used to connect multimaterials
and show their structural and economic advantages compared to traditional bonding
methods. However, robust methods are still ...
Mechanical Analysis of Polycarbonate/Polysiloxane Block Copolymers and Blends
(North Dakota State University, 2013)
Polydimethylsiloxane (PDMS) can be used to react with polycarbonate (PC) to generate PC-PDMS multiblock copolymers and PC/PC-PDMS-PC triblock blends to overcome the notch sensitivity of PC while maintaining its transparency. ...