Search Results

< Back to all projects BRIGHAM & WOMEN’S HOSPITAL MICROGRID DESIGN START/COMPLETION: February 2013 – July 2014 SIZE & TECHNOLOGY: 4 MW Reciprocating Engine Generator, 125 psig Waste Heat Boiler, Jacket Water Heat Recovery, (2) 700 BHP Firetube Boilers IN-SERVICE: Summer 2016 FIRM ROLE: Feasibility Study, Schematic Design, Design Development, Detailed Design Waldron Engineering & Construction, Inc. performed an initial feasibility study for Brigham and Women’s Hospital (BWH) to evaluate the feasibility and economic value of installing a Combined Heat and Power Plant (CHP) in their new Brigham’s Building for the Future (BBF). The primary purpose for the CHP was to provide operational cost savings to the hospital and a level of resiliency to serve the energy needs of the facility. In addition to studying various CHP technologies, including combustion turbine generator and reciprocating engine generators, Waldron appraised the value of supplying electrical and thermal energy not only to the new BBF building, but also to the neighboring Shapiro building which is part of the Brigham and Women’s Hospital campus. Upon identifying that a 4 MW reciprocating engine based CHP was the optimal size and technology to serve the two buildings, Waldron executed the detailed design of the entire central energy plant. Waldron served as the engineer of record for the project which included a 4 MW recip-engine based CHP plant with dual fuel firetube boilers that were installed in the basement of Brigham & Women’s Hospital Building for the Future in Boston.

< Back to all projects YALE UNIVERSITY INVESTMENT GRADE STUDY LOCATION: New Haven, CT STUDY DATE: November 2011 FIRM ROLE: Investment Grade Study for Repowering the Central Utility Plant Waldron was selected by Yale University to develop a master plan for the repowering of the existing Central Utility Plant. The existing facility consists of three 5 MW gas turbines and heat recovery boilers that provide steam and electricity to the campus. The turbines are now at the end of their useful life. Waldron’s scope included the development of a Basis of Design document that quantified the future requirements for the Central Utility Plant. The requirements comprised thermal and electric load profiles, operational restraints, environmental requirements, and economic parameters. An operations model of the existing Central Utility Plant was developed to simulate the hourly operations of the plant serving the campus loads for a 20-year period, BAU case (Business as Usual). A series of alternatives were developed and run against the 20-year simulation to quantify the technical performance of the options operating against the campus loads. An economic model of the operations is linked to the simulation, taking into account utility rate structures, commodity costs, and other influences. The combined models provided a data set that was utilized for the selection of a preferred option to be refined in to an investment grade business case. The investment grade business case included a detailed construction cost estimate, linked to a construction plan, including rigging analysis and a phasing-in schedule. Detailed operating cost results were included from the 20-year simulation. Operations costs and maintenance costs were developed down to the individual staffing level, consumable consumptions, and LTSA quotations. A final set of project economics along with a probabilistic analysis was developed for presentation for the business case to the trustees.

< Back to all projects UNH PROCESS LANDFILL GAS PROJECT LOCATION: Durham, NH IN-SERVICE: 2009 SIZE & TECHNOLOGY: 7.9 MW Turbine/HRSG duct-Landfill gas/natural gas blend FIRM ROLE: Engineering and Design Waldron Engineering was contracted by EMCOR to design the installation of a landfill gas to energy system for the existing Siemens gas turbine and a HRSG duct-burner for the University of New Hampshire. Waldron was the Engineer of Record for the process landfill gas (PLG) project and assisted with work on the aspects of the landfill gas conditioning. The landfill gas is conditioned and blended with natural gas for the operation of the cogeneration facility. Waldron was responsible for providing a construction package that defined the work for the mechanical, civil, electrical and controls portions of the work. The construction specifications for the work were provided as part of the package. All the specs were coordinated with the existing UNH equipment and materials to maintain the consistency of the equipment in the plant. The UNH Cogeneration Plant consists of a 7.9-megawatt dual-fuel combustion generator train, including a HRSG (heat recovery steam generator) with a duct burner that produces 100,000 pounds of steam per hour and a 1,200-ton chilled water plant.

< Back to all projects ONE BRYANT PARK MICROGRID LOCATION: New York, NY DESIGN START/COMPLETION: Spring 2006 – Spring 2007 SIZE & TECHNOLOGY: 4.5 MW Electric 50,000 lb/hr steam Gas Turbine / HRSG IN-SERVICE: Spring 2009 FIRM ROLE: Engineering, Construction Management, Technical Support The Durst Organization builds, owns, and operates some of the world’s most innovative and efficient buildings. In developing the One Bryant Park building (a.k.a The Bank of America Tower), The Durst Organization made a commitment to achieving the lowest environmental footprint. The building, which is located one block off Times Square on Sixth Avenue, is a 50-story structure that is predominately leased by Bank of America. The building is designed to conserve energy wherever possible. The energy that is consumed is supplied by a gas turbine-based CHP facility located on the 7th floor podium. Waldron designed the complete plant around the Solar Mercury 50 gas turbine that exhausts into a fired HRSG. The HRSG is sized to serve the complete needs of the building. The building set a new standard in sustainable commercial construction by utilizing the least amount of energy possible, and the energy consumed is generated in the most efficient manner possible. It is the first LEED Platinum high-rise office tower in North America and ranks among the most environmentally advanced skyscrapers in the world.

< Back to all projects FRASER PAPER MILL/NEXFOR LOCATION: Edmundston, New Brunswick DESIGN START: 1995 DESIGN COMPLETION: 1998 IN-SERVICE: Commercial Operation beginning early 1998 SIZE & TECHNOLOGY: 45 MW net, Hydrograte Stoker, Biomass-Fired Boiler FIRM ROLE: Owner’s Engineer, Engineering, Construction Management and Commissioning Waldron Engineering was engaged to act as the owner’s engineering group during the development of a biomass fueled cogeneration facility for a 1300 ton per day paper mill in Edmundston. The installed facility generated 45 MW of electricity and an equivalent thermal load of 60 MW. Waldron developed the plant’s conceptual design. Additionally, Waldron dealt with boiler efficiency analysis, thermodynamic cycle design, and conceptual layout, technical and economic optimization of design. Finally, Waldron developed and evaluated the EPC contract bids. This project successfully meets all thermal output designed at concept. As of 1998 the Fraser Cogeneration Power Plant was the largest biomass-fueled boiler in North America.

< Back to all projects NATIONAL AERONAUTICS & SPACE ADMINISTRATION LOCATION: Hampton, VA IN-SERVICE: 2008 SIZE & TECHNOLOGY: Steam and Condensate Distribution System FIRM ROLE: Engineer of Record NASA undertook a major steam distribution redesign project to replace an aging system that could no longer support the integration of two remote steam generating plants and was having water hammer problems that were causing structural challenges. Waldron was selected to engineer and design a new system for steam supply and condensate return for NASA’s Langley Research Center. The system installed over a mile of piping and integrated many buildings on the center’s campus into the distribution system that had to be capable of receiving steam from two remotely located steam generating plants. The system consisted of above ground sections, direct buried sections and underground utility tunnel-based sections, all support and anchoring components and flow and pressure control devices and instrumentation. Steam conditions are 400 psig saturated steam and flow rate of 75,000 lb/hr.

< Back to all projects LONGWOOD MEDICAL ENERGY COMPREHENSIVE STUDY LOCATION: Boston, MA STUDY DATE: November 2014 – December 2015 SIZE & TECHNOLOGY: Gas Turbines, Reciprocating Engines, Chillers, Boilers FIRM ROLE: Feasibility Study The Longwood Medical Area (LMA) is a world-class medical and academic center located between Brookline and Mission Hill. With the central energy plant serving the hospital district getting close to 40 years in age, Longwood Medical Energy commissioned Waldron Engineering & Construction, Inc. to develop a study for the replacement of the existing facility and distribution net-work. Longwood Medical Energy consists of Brigham & Women’s, Harvard Medical School, Children’s Hospital, Beth Israel Deaconess Medical Center, Dana Farber Cancer Institute, Jimmy Fund and other healthcare and research facilities. The comprehensive study covered load analysis with growth projections, central plant, distributed generation and satellite plant options and radial, loop and other distribution options. The technical options include gas turbines, reciprocating engines, chillers, boilers and complete balance of plant. Work included life cycle performance projections, O&M cost budgets and construction cost estimates.

Time Out This page isn’t available right now. But we’re working on a fix, ASAP. Try again soon. Go Back

< Back to all projects HARVARD BLACKSTONE – BOILER 11 UPGRADE DESIGN START/COMPLETION: November 2010 – June 2011 SIZE & TECHNOLOGY: 150,000 lb/hr dual fuel (natural gas and #6 oil), 400 psig steam boiler IN-SERVICE: November 2012 FIRM ROLE: EPC (Engineering, Procure, Construct), Commissioning In 2003, Harvard purchased the Blackstone Station in Cambridge, MA from NSTAR to insure a secure source of steam to serve the future campus expansion. Waldron was retained to provide technical due diligence for the purchase as well as develop a plan for Blackstone that would meet the Campus growth needs into 2020. The installation of Boiler 13 was the first step in the plan. After the successful installation of Boiler 13, the next step was the Boiler 11 upgrade. Waldron was once again brought on as the EPC contractor by Harvard University for the project. The project scope included an upgrade of the fuel delivery and control systems associated with Boiler 11 at Harvard’s Blackstone steam plant in Cambridge, MA. The proposed work involved a 150,000 lbs/hr dual fuel (natural gas and #6 oil), 400 psig steam boiler burner management and combustion control systems complete replacement. These upgrades modernized the fuel train and combustion controls for the industrial boiler which provides part of the Harvard campus steam supply.

< Back to all projects GENERADORA ELECTRICAL DEL NORTE LOCATION: Puerta Barrios, Guatemala SIZE & TECHNOLOGY: 5.8 MW Turbo Expander, Super Critical Propane, Cycle Evaporative Cooling DESIGN START: Fall 2012 IN SERVICE: Spring 2013 SCHEDULE: Construction Start Winter 2013, Construction Complete Summer 2013 FIRM ROLE: Engineering, Procurement Generadora Electrical Del Norte (Genor), a Guatemalan independent power producer, owned a 40 MW heavy fuel oil-fired reciprocating engine plant in Puerto Barrios, Guatemala. Recognizing the benefits of an improved plant heat rate, Genor under-took an analysis of ways to improve the output and efficiency of the Puerto Barrios facility. A number of options were analyzed to “combine cycle” the plant. The plant selected the Organic Rankine Cycle ORC-AT, as designed by Waldron. Waldron has an exclusive license agreement to design and construct the ORC-AT cycle. The cycle consists of a two-stage heat recovery system producing supercritical propane from exhaust waste heat. Energy in the propane is converted to shaft horsepower in a two-stage turbo expander coupled to a single generator via a common gearbox. Heat from exhausted propane is recuperated against propane prior to recycling to the superheater. Cooling for the cycle is via a bank of evaporative condensers. The plant will produce a net output of 4.0 MW for sale to the grid with the addition of no fuel input.

< Back to all projects UMASS POWER PLANT & DISTRIBUTION INFRASTRUCTURE SYSTEM STUDY LOCATION: Worcester, MA START: Fall 2018 COMPLETION: Spring 2019 FIRM ROLE: Engineering Consultant Waldron has been working on projects on the UMass Medical School Campus for over 20 years. The goal of this power plant and distribution infrastructure system study was to develop the most effective solution from a life cycle perspective to meet the evolving needs of the campus over the next 20—30 years. The three utilities that were studied included electric, steam and chilled water. As part of this project, Waldron performed an assessment of existing equipment and infrastructure, reviewed the current operating strategy, developed a conceptual upgrade to the campus metering scheme, and reviewed over twenty capital projects for their potential benefits to the system. For each of these capital projects Waldron conceptualized a project approach, calculated the life cycle outcomes for the campus using an 8,760-hr utility model, developed capital cost budgets for each, and also reviewed the level of urgency and environmental impacts of each. The project included hydraulic modeling of the steam and chilled water distribution systems, modeling of the electrical distribution system, and development of an 8,760-hr utility model with dispatch algorithms for the combustion turbine, three steam turbines, boilers and chillers within the UMMS facility. These models enabled investment grade accuracy for the life cycle cost analysis associated with each of the capital upgrades that were considered for the facility.

< Back to all projects JAMAICA PRIVATE POWER COMPANY LOCATION: Rockford, Jamaica DESIGN START: 1993 IN-SERVICE: Commercial Operation, Q1 – 1998 SIZE & TECHNOLOGY: 64 MW Heavy Fuel Oil (HFO) Slow Speed Diesel Engines with Condensing Steam, Turbine Generator FIRM ROLE: Owner’s Engineer, Start-Up and Commissioning Waldron Engineering was engaged to develop a design concept and technical specification to enable the owner to solicit turnkey construction bids. Subsequent to the initial work, we were retained to start-up; commission and performance test this facility. Waldron acted as the Owner’s Engineer – involved in the project development phase and assisted the owner to develop an EPC RFP and EPC bid evaluation, along with reviewing contractor design and construction submittals. Waldron participated in the project design and construction meetings. In the start-up and commissioning phase Waldron assisted with the equipment start-up crew to start-up the major equipment, develop commissioning plans and performed system commissioning tasks. Waldron also developed the facility performance test protocol, analyzed performance test results and developed the final performance test report. The facility contains two MAN slow speed 30 MW reciprocating engines exhausting into two pressure forced circulation heat recovery steam generators and one 4 MW steam turbine.