B-3-(ii)Antigonish 8 MW - Biomass Cogeneration Plant - Feasibility Study
Final Report - Revised - March 15, 2011
I 3/17/2011
8 passages
2.3 Technologies The technologies available for wood fired combustion can be divided into three (3) main types: grate combustion, fluidized bed combustion, and gasification.
AI summary The text categorizes wood fired combustion technologies into three main types: grate combustion, fluidized bed combustion, and gasification.
2.3.1 Grate Combustion Grate combustion is the traditional technology used for burning solid fuels. Grates are widely used for large power boilers found in pulp and paper mills as well as smaller heating boiler applications. Grates are les...
AI summary Grate combustion is a traditional method for burning solid fuels, commonly used in large power boilers and smaller heating applications. It is less tolerant to fuel quality variations compared to fluidised bed systems and typically requires fuel moisture to be limited to 57% for stable combustion. The process involves blowing wood biomass into the furnace, introducing combustion air, and using heat exchangers to generate hot water or steam.
4 EVALUATION OF COGENERATION OPTIONS
AI summary This section evaluates cogeneration options, focusing on their potential benefits and considerations for implementation within the regulatory framework.
4.1 Introduction Cogeneration is the defined as the simultaneous production of two different sources of energy, in this case electrical energy and thermal energy. Cogeneration is a very efficient way to generate energy because of the natur...
AI summary Cogeneration is the simultaneous production of electrical and thermal energy, offering high efficiency. By utilizing waste heat from power plants, cogeneration can significantly improve overall plant efficiency, especially for nearby users like greenhouses or district heating systems. However, extracting higher temperature steam for district heating slightly reduces electrical output.
5.1 Existing Plant Summary The existing central heating plant (CHP) is located in the middle of the campus surrounded by university buildings. The CHP consists of one (1) 750 HP watertube, one (1) 600 HP firetube and two (2) 800 HP firetub...
AI summary The existing central heating plant (CHP) is located on a university campus and includes multiple boilers that provide steam to an underground distribution network serving most campus buildings.
5.2 Cogeneration Plant Summary The plant will consist of a wood fired boiler bubbling fluidized bed boiler, steam turbine generator, condenser, cooling tower, building, fuel and ash handling systems. The plant would be located on the south...
AI summary The cogeneration plant will include a wood-fired boiler, steam turbine, and associated systems. It will be located near NS Power's substation and will supply steam to campus buildings through underground piping, meeting the entire peak heating requirement.
2. Condenser price includes: - Shell and tube heat exchanger - Stainless steel tubes - Hotwell with one minute retention time - Twin condensate pumps - Two stage, twin element ejector package sized for 150 PSIG / 450 Deg F steam - Inter an...
AI summary The condenser price includes various components such as a shell and tube heat exchanger, stainless steel tubes, hotwell, twin condensate pumps, and other related equipment. It is sized for specific steam and cooling water conditions.
One (1) Babcock & Wilcox Bubbling Fluidized Bed Boiler, which includes the following: - Pressure parts including membrane furnace, boiler bank & drums - BFB combustor c/w hoppers - Air pipes and bubble caps - Air swept spouts c/w balanced...
AI summary The text details the components of a Babcock & Wilcox Bubbling Fluidized Bed Boiler, including pressure parts, combustion systems, valves, instrumentation, and installation components.
B-11Evidence of Alliance of Nova Scotia Sawmillers 3/22/2011
25 passages
ESI, INC. OF TENNESSEE Qualifications Package Detailed design activities typically include: - Final equipment sizing. - Final equipment specifications. - Finalization of client design criteria and requirements. - Preparation of P&IDs. - Pr...
AI summary The document outlines the detailed design activities involved in steam and power generation projects, including equipment sizing, specifications, and preparation of various technical drawings and manuals. ESI, Inc. of Tennessee highlights its extensive experience in the field and its ability to identify crucial project specifications that affect performance and reliability.
37 MW Wood-Fired Power Generation Facility
AI summary The document introduces a proposal for a 37 MW wood-fired power generation facility. It outlines key details about the project and its potential impact on the energy sector in Nova Scotia.
Project Description: ESI was the engineer for this 37 MW woodfired power generation facility. The facility included a field-erected wood-fired boiler designed to provide 1200 psig/950°F superheated steam to a nominal 37 MW steam turbine ge...
AI summary ESI was the engineer for a 37 MW wood-fired power generation facility. The project included a boiler, steam turbine generator, material handling systems, and various support systems. The facility is housed in a new structural steel building and includes a new fuel oil tank.
Project Description: ESI was the EPC Contractor for this 7.5 MW natural gas-fired cogeneration facility. This facility included the installation of a new 7.5 MW Solar combustion turbine coupled to a new fully fired 170,000 pph heat recover...
AI summary ESI was the EPC Contractor for a 7.5 MW natural gas-fired cogeneration facility. The project involved installing a Solar combustion turbine, a heat recovery steam generator, and upgrading an existing steam turbine and control systems to a new ABB/ Bailey distributed control system.
Project Description: ESI is performing the engineering, procurement, and construction management (EPCM) for this 1,100,000 pph coal/pet coke/natural gas-fired facility. The facility will include a field-erected circulating fluid bed boiler...
AI summary ESI is managing the EPCM for a new 1,100,000 pph coal/pet coke/natural gas-fired facility, which includes a circulating fluid bed boiler, emission control systems, and a new structural steel building.
60,000 PPH Bubbling Fluidized Bed Boiler System
AI summary The document discusses a 60,000 PPH bubbling fluidized bed boiler system, which is a type of industrial boiler used for generating steam. It is likely part of a larger energy or power generation project, potentially involving engineering, procurement, and construction management.
Coal Boiler Conversion to Biomass Firing Boiler System - Owner: Detroit Edison Energy Systems (DTEES) - Project Location: Cassville, Wisconsin - Project Completion: June 2010 - Project Description: ESI was selected to provide complete engi...
AI summary This document outlines the conversion of two coal-fired boilers at the Cassville facility to a biomass-fired system, managed by ESI. The project aimed to upgrade the facility to a 47 MW biomass system, involving significant modifications to the furnace, fuel handling, and control systems.
300,000 PPH Wood-Fired Steam Facility
AI summary This section discusses the proposal for a 300,000 PPH wood-fired steam facility, which involves various engineering and construction components. It outlines the technologies and companies involved in the project.
Project Description: ESI was the EPC Contractor for this 300,000 pph steam facility. This facility included one 300,000 pph field-erected boiler designed to produce 800 psig, 850°F superheated steam firing wood and #6 fuel oil, along with...
AI summary ESI served as the EPC contractor for a 300,000 pph steam facility project, which included the installation of a new boiler, wood yard, and material handling system, as well as upgrades to existing boilers with new control systems and low NOx burners to meet local regulations.
(condensing / extracting facility) Marwood Biomass CHP Option 1 ‐ Backpressure Option 2 ‐ Condensing/Extracting BREAKDOWN EQUIP $ LABOR $ TOTAL $ EQUIP $ LABOR $ TOTAL $ 1 SITEWORK $25,392 $0 $25,392 $30,861 $0 $30,861 2 CONCRETE AND FOUND...
AI summary The document presents a cost breakdown for two options of the Marwood Biomass CHP facility, detailing equipment and labor costs for various construction and system components under Option 1 (Backpressure) and Option 2 (Condensing/Extracting).
OPTION 2 –CONDENSING STG FACILITY
AI summary This section introduces Option 2, which involves the implementation of a condensing STG facility. It outlines the key considerations and potential impacts of this option within the regulatory proceeding.
Plant Description The Option 2 plant is designed with a condensing turbine to generate power and deliver process steam to the host. This adds several pieces of auxiliary equipment to the project but it allows the ability to generate power...
AI summary The Option 2 plant is designed with a condensing turbine to generate power and deliver process steam to the host. This design adds auxiliary equipment but enables power generation when process steam is no longer needed, resulting in higher kW generation.
STG and Auxiliaries One (1) nominal 2.4 MW reaction multistage, multivalve condensing extraction turbine and water to air-cooled generator with the following auxiliaries: - Gland steam seal and exhaust system - Lube/control oil system(s) w...
AI summary The text describes the components of a 2.4 MW condensing extraction turbine and its associated auxiliaries, including systems for control, cooling, monitoring, and maintenance.
Fuel (Biomass) Unloading and Handling System: - One (1) biomass receiving fuel feed hopper with live-bottom reclaim hopper and enclosure. The fuel feed hopper will accommodate self-unloading trailers only. The reclaim hopper will convey th...
AI summary The document outlines the components of a biomass unloading and handling system, including hoppers, conveyors, screens, hogs, electromagnets, and bins, designed to transfer and process biomass fuel for a boiler system.
CHP PLANT FACILITY STUDY Prepared for MARWOOD LTD NOVA SCOTIA, CANADA Prepared by ESI INC. OF TENNESSEE Project #688002 rev D MARCH 21, 2011
AI summary This document is a facility study for a Combined Heat and Power (CHP) plant, prepared by ESI Inc. of Tennessee for Marwood Ltd in Nova Scotia, Canada, as of March 21, 2011.
Drawings Flow Sheets 688002F01 Fuel Handling Flow Sheet 688002F02 Air and Flue Gas Flow Sheet - Option 1 688002F03 Mass & Energy Balance Option 1 – Backpressure STG 688002F04 Air and Flue Gas Flow Sheet - Option 2 688002F05 Mass & Energy B...
AI summary The document includes flow sheets and general arrangements for a combined heat and power (CHP) plant, detailing two options for fuel handling, air and flue gas flow, and mass and energy balance. It also provides site plans and building layouts for the CHP plant.
Executive Summary Page II-1 PRELIMINARY DESIGN BASIS Capacity 12.2 12.2 tons Number of Days 11.0 8.8 Density 45 45 lb/ft3 Design temperature 200 200 °F FLY ASH COLLECTION SYSTEM Type Mechanical Mechanical Total Capacity 41 52 pph Density 2...
AI summary The text provides a preliminary design basis for a project, including details on capacity, density, temperature, and various system components such as fly ash collection, storage, and steam cycle design. It outlines two turbine options with differing power outputs and operational parameters.
STG and Auxiliaries One (1) nominal 1.06 MW single automatic extraction backpressure steam turbine and water to air-cooled generator with the following auxiliaries: - Gland steam seal and exhaust system - Lube/control oil system(s) with co...
AI summary The document outlines the components of a 1.06 MW single automatic extraction backpressure steam turbine and its associated auxiliaries, including systems like the lube/control oil system, electro-hydraulic control (EHC), and monitoring systems.
Boiler Island: - One (1) 20,000 pph vibrating water-cooled grate, stoker-fired boiler designed for 615 psia 750°F steam generation. The proposed boiler is a bottom supported design with one start-up burner with individual valve racks and f...
AI summary The text describes the components of a new boiler system at Boiler Island, including a vibrating water-cooled grate boiler, various fans, ductwork, and auxiliary systems for steam generation and heat recovery.
OPTION 2 –CONDENSING STG FACILITY
AI summary This section introduces Option 2, which involves the implementation of a condensing STG facility. It outlines the key considerations and potential impacts of this option within the regulatory proceeding.
Plant Description The Option 2 plant is designed with a condensing turbine to generate power and deliver process steam to the host. This adds several pieces of auxiliary equipment to the project but it allows the ability to generate power...
AI summary The Option 2 plant is designed with a condensing turbine to generate power and deliver process steam to the host. This design adds auxiliary equipment but enables power generation when process steam is no longer needed, resulting in higher kW generation.
Fuel (Biomass) Unloading and Handling System: - One (1) biomass receiving fuel feed hopper with live-bottom reclaim hopper and enclosure. The fuel feed hopper will accommodate self-unloading trailers only. The reclaim hopper will convey th...
AI summary The document outlines the components of a biomass unloading and handling system, including hoppers, conveyors, screens, hogs, electromagnets, and bins, designed to transfer and process biomass fuel for a boiler system.
Q. Is an 85% plant capacity factor a reasonable estimate for the operation of a CHP plant of this size? A. ESI has indicated that it believes a 90% plant capacity factor should be attainable.
AI summary The question asks whether an 85% plant capacity factor is reasonable for a CHP plant of this size. ESI believes a 90% plant capacity factor should be attainable.
Q. Has Synapse included an assessment of the power required to operate the CHP plant? - A. I do not see where Synapse has accounted for parasitic power losses associated with operating the power plant in their model. This is a significant...
AI summary Synapse has not accounted for parasitic power losses in the CHP plant model, which consume 14% of gross electricity production. Two options are presented: purchasing power at NSPI rates or self-consumption. Option 1 is deemed less costly for rate payers, but parasitic power losses must be included in the COMFIT rate calculation.
Q. At what pressure do current ANSS boilers operate? A. All boilers operated by members of the ANSS operate at a pressure of 15 psi or below. Based on the companies which shared their boiler details with the ANSS there are no boilers that...
AI summary The current ANSS boilers operate at a pressure of 15 psi or below. No member operates boilers with steam requirements exceeding 18,000 lbs/hr, with two members operating smaller facilities and the rest operating in the 18,000 lbs/hr range.