The Experts below are selected from a list of 2433 Experts worldwide ranked by ideXlab platform

Gabo Takacs - One of the best experts on this subject based on the ideXlab platform.

  • WAYS TO DECREASE PRODUCTION COSTS FOR SUCKER-ROD PUMPING
    2015
    Co-Authors: Gabo Takacs
    Abstract:

    Mainly due to its long history, sucker-rod pumping is a very popular means of arti-ficial lift all over the world, roughly two-thirds of the producing oil wells are on this type of lift. To maximize profits from these wells in the ever-changing economic situa-tion with rising costs of electric Power, installation designs must ensure optimum con-ditions. In the paper, basic considerations on ensuring profitable rod pumping opera-tions are given. The key topics of installation design (pumping mode selection, optimum counterbalance, rod string design) are addressed and their role in the improvement of sucker-rod pumping operations and the reduction of lifting costs is discussed. After a review of the surface and downhole energy losses in sucker-rod pumped wells, some key considerations on the ways to improve system efficiency are given. The most important task is the proper selection of the pumping mode, i.e. the combination of plunger size, pumping speed, stroke length, and rod taper design for lifting the pre-scribed amount of liquid to the surface. The best pumping mode maximizes the lifting efficiency and, at the same time, reduces Prime Mover Power requirements and electri-cal costs. The operational efficiency of the surface equipment is improved by using a

  • Improved designs reduce sucker-rod pumping costs
    Oil & Gas Journal, 1996
    Co-Authors: Gabo Takacs
    Abstract:

    Pumping mode selection, optimum counterbalance determination, and rod string design are factors that can reduce operational costs and improve sucker-rod pumping operations. To maximize profits from sucker-rod pumped wells, designs must aim at technically and economically optimum conditions. Assessment of surface and downhole energy losses are basic considerations for improving system efficiency. It is important to properly select the pumping mode, such as the combination of plunger size, pumping speed, stroke length, and rod taper design. The best pumping mode maximizes lifting efficiency and, at the same time, reduces Prime-Mover Power requirements and electrical costs. Surface equipment operational efficiency can be improved with optimum counterbalancing of the pumping unit, and top achieve an ideal sucker-rod pumping system, a tapered rod string must have a proper mechanical design. The paper discusses rod pumping, downhole energy losses, surface losses, optimum efficiency, mode selection, counterbalancing, minimizing the cyclic load factor, and rod string design.

T. Hennagir - One of the best experts on this subject based on the ideXlab platform.

  • Prime Mover progress
    Independent Energy, 1995
    Co-Authors: T. Hennagir
    Abstract:

    Manufacturers continue to upgrade fluidized bed and steam technologies to meet more stringent emission, efficiency and service challenges from global Power market customers. Offshore, suppliers are being pushed to provide quality, low-cost production and significant local competitive presence in nearly all international markets. The ability to meet customer and regulatory demands for emissions across different global market segments remains a priority for Prime Mover suppliers as they develop environmental technical improvements. Products initially developed for the more stringent European regulations are now finding a market in the US. In developing countries, demand continues for utility-size boiler products, but pollution control equipment costs remain a parallel consideration. Industry improvements to steam cycle equipment, namely turbines, continue to reap benefits in terms of efficiency and operational flexibility. Boiler and steam manufacturers` response to global markets remains right on target as product development strategies are constantly adjusted and analyzed to reach an optimum marketing mix. Innovation and advances in Prime Mover Power equipment technology remain a mainstay of suppliers` ability to meet the needs of a changing, competitive clientele.

A Francis - One of the best experts on this subject based on the ideXlab platform.

  • Gas Turbine Engine Exhaust Waste Heat Recovery Using Supercritical CO2 Brayton Cycle With Thermoelectric Generator Technology
    Volume 1: Advances in Solar Buildings and Conservation; Climate Control and the Environment; Alternate Fuels and Infrastructure; ARPA-E; Combined Ener, 2015
    Co-Authors: Di Bella, A Francis
    Abstract:

    This presentation will discuss the results of the feasibility analysis of a Brayton cycle-based, supercritical CO2 system that recovers waste heat from an MT30 gas turbine used in marine applications. The analysis also included the use of thermoelectric generator (TEG) devices that are one of several direct energy conversion methods known to be applicable to waste heat recovery. The analysis was conducted by Concepts NREC, in collaboration with the Maine Maritime Academy and their principal consultant, Thermoelectric Power Systems, LLC. The feasibility analysis was conducted under Navy SBIR Proposal Number N103-229-0533, entitled “Gas Turbine Engine Exhaust Waste Heat Recovery Shipboard Module Development”. The objective of the project was to improve the energy efficiency of the MT30 Prime-Mover Power system for the Navy and other commercial vessels. The performance goal for the energy recovery system was to improve the fuel economy of the Prime Mover by 20% when significantly part-loaded.Copyright © 2015 by ASME

Francis A. Di Bella - One of the best experts on this subject based on the ideXlab platform.

  • An Analysis of an Advanced Compressed Air Energy System (CAES) Using Turbomachinery for Energy Storage and Recovery and for Continuous On-Site Power Augmentation as an Air Brayton Cycle
    Mechanics and Mechanical Engineering, 2020
    Co-Authors: David Japikse, Francis A. Di Bella
    Abstract:

    AbstractA thermodynamic analysis of an advanced CAES for Distributed Power Generation (DPG) is presented that utilizes turbomachinery for energy recovery, but also gives continuous Power generation to augment on-site Power. The advanced CAES uses renewable energy such as wind Power and solar PV in the Power range of 1500 to 2500 kW plus recuperation of waste heat from the existing on-site Prime Mover to improve the utility of the energy storage system. The proposed system also utilizes battery storage to maintain high energy density storage, preferably without the need for costly electrical rectifying and inversion systems to improve the stabilization of Power generation. This proposed system may be thought of as a “cross-over” system that combines CAES technology with electric battery storage technology, particularly if the stored electric Power is used directly as D.C. Power at an industrial facility. The direct use of stored energy from a battery as heat input to the proposed “cross-over” system also may be considered in some limited applications. The ideal application of the proposed system is for isolated DPG systems perhaps in remote sites utilizing “Power islands” of renewable energy augmented with on-site fossil fuel Prime Mover, Power generation systems. The proposed “cross-over” system enables higher reliability, faster response to transient Power loads, and the efficient use of renewable energy, as well as heat recovery from conventional Prime Mover systems that are on site.

Pericles Pilidis - One of the best experts on this subject based on the ideXlab platform.

  • A Preliminary Assessment of the Initial Compression Power Requirement in CO2 Pipeline “Carbon Capture and Storage (CCS) Technologies”
    Technologies, 2016
    Co-Authors: Abdussalam El-suleiman, Nnamdi Benedict Anosike, Pericles Pilidis
    Abstract:

    CO2 captured from fossil-fueled Power generation plants is said to be economically transported via pipelines over long distances. The CO2 must be compressed to pipeline specifications using compressors and pumps that are driven by gas turbine (GT) or other Prime Movers. This paper presents the evaluation of actual work transfer or required Prime Power by modeling the governing equations of compression using the Peng–Robinson equation of state (PR-EOS). A computer code was developed to carry out the modeling and subsequent simulation of the compression Power requirement. The simulation of Prime Mover Power was carried out for different technology (head per stage) of the compressor ranging from 10-staged compression to double stage compression. The results show that the current technology of the centrifugal compressor could require as much as 23MW of Prime Mover Power to compress 1.5 million tonnes per year of CO2—a projected equivalent CO2 released from a 530MW combined cycle gas turbine (CCGT) Power generation plant.