Results 71 to 80 of about 1,702,447 (202)

Autocatalytic Pyrolysis of Wastewater Biosolids for Product Upgrading [PDF]

open access: yes, 2017
The main goals for sustainable water resource recovery include maximizing energy generation, minimizing adverse environmental impacts, and recovering beneficial resources.
Liu, Zhongzhe   +2 more
core   +1 more source

Study on optimization and mechanism of CO2 injection to enhance oil recovery in mid-deep heavy oil reservoirs

open access: yesFrontiers in Energy Research
In order to improve the oil recovery of mid-deep heavy oil reservoirs, this study investigates the efficiency of enhanced oil recovery and the mechanisms of oil displacement in mid-deep heavy oil reservoirs using different injected gases (N2, CH4, CO2 ...
Xiaokun Zhang   +6 more
doaj   +1 more source

Green Recovery: A Program to Create Good Jobs & Start Building a Low-Carbon Economy [PDF]

open access: yes
September 2008As the nation debates its energy future, this report shows that the U.S. can create two million jobs by investing in a rapid green economic recovery program, which will strengthen the economy, increase energy independence, and fight global ...
Heidi Garrett-Peltier   +3 more
core  

Boiler Blowdown Energy Recovery

open access: yesEnergy Engineering, 2004
ABSTRACT Boiler blowdown is essential for the continued operation of any boiler. Without blowdown, chemical concentrations within the boiler water can increase above acceptable limits, potentially leading to boiler damage. Typical problems associated with insufficient blowdown are tube scale, corrosion, and liquid carryover.
openaire   +1 more source

Analysis of the Energy Efficiency of a Pneumatic Booster Regulator with Energy Recovery

open access: yesApplied Sciences, 2017
Pneumatic booster regulators (PBR) are in great demand in modern pneumatic systems for their energy-saving abilities. A new booster regulator with energy recovery (VBA-R) was proposed, and its energy efficiency was investigated by introducing the concept
Fan Yang   +3 more
doaj   +1 more source

Performance of a demand controlled mechanical extract ventilation system for dwellings [PDF]

open access: yes, 2013
The main aim of ventilation is to guarantee a good indoor air quality, related to the energy consumed for heating and fan(s). Active or passive heat recovery systems seem to focus on the reduction of heating consumption at the expense of fan electricity ...
Janssens, Arnold   +5 more
core   +2 more sources

Dynamics of photoinduced Charge Density Wave-metal phase transition in K0.3MoO3

open access: yes, 2009
We present first systematic studies of the photoinduced phase transition from the ground charge density wave (CDW) state to the normal metallic (M) state in the prototype quasi-1D CDW system K0.3MoO3.
A. Tomeljak   +6 more
core   +1 more source

Feasibility study of fracturing flowback fluid degradation by dielectric barrier discharge plasma

open access: yesScientific Reports
Fracturing flowback fluid, which is the waste fluid generated following the hydraulic fracturing of oil wells, has garnered significant attention in recent years regarding its safe treatment technologies. Low-temperature plasma water treatment technology
Meiqi Shi   +4 more
doaj   +1 more source

Research on the Development Mechanism of Air Thermal Miscible Flooding in the High Water Cut Stage of Medium to High Permeability Light Oil Reservoirs

open access: yesEnergies
Currently, the development of oil reservoirs with high water cut faces numerous challenges, including poor economic efficiency, difficulties in residual oil recovery, and a lack of effective development technologies.
Daode Hua   +8 more
doaj   +1 more source

Intelligent Diagnosis Method for Typical Co-frequency Vibration Faults of Rotating Machinery Based on SAE and Ensembled ResNet-SVM

open access: yesChinese Journal of Mechanical Engineering
Intelligent fault diagnosis is an important method in rotating machinery fault diagnosis and equipment health management. To deal with co-frequency vibration faults, a type of typical fault in rotating machinery, this paper proposes a fault diagnosis ...
Xiancheng Zhang   +3 more
doaj   +1 more source

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