WE MAKE YOUR IDEAS A REALITY

TENZA, a.s. Svatopetrská 35/7, 617 00 Brno, Czech Republic

Phone: +420 545 539 339, Fax: +420 545 214 614, tenza@tenza.cz

www.tenza.cz

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Flue Gas Desulphurisation and denitrification in ČeskéBudějovice Heat and PowerPlant

Biomass boiler plant in Vlašim

Renovation of the DistrictHeating System in K2 and K3Boiler Plant, Uherský Brod

Complete Renovation of the Prunéřov II Power Plant

Heat and Power Engineering (Power Plants, Combines Heat and Power Plants, HeatingPlants, Refuse Incinerating Plants, Biogas Plants)

Distribution Systems (Heat Distribution, Heat Exchanger Stations)

Technology and Equipment(Boilers, Flue Gas Cleaning Technology, Low-emissionCoal Burners)

Construction

Industrial Buildings and Water Engineering(Water Piping and Sewerage Networks, Wastewater Treat-ment Plants)

Sales Activities(Pre-insulated Piping, Valves)

Services(District Heating Systems Operation, Financing)

TENZA, a.s. has successfully implemented the management systems according to the requirements of standardsfor Quality Management System (ČSN EN ISO 9001:2009), Environmental Management System (ČSN EN ISO14001:2005) and Occupational Health and Safety Management System (ČSN OHSAS 18001:2008).

ACTIVITIES

QUALITY MANAGEMENT, ENVIRONMENTAL MANAGEMENT AND OCCUPATIONAL HEALTH AND SAFETY MANAGEMENT SYSTEMS

made and developed heat exchanger stations are designedfor delivering heat and domestic hot water to buildings andare an appropriate addition to the heating equipment offered.

WE MAKE YOUR IDEAS A REALITY

COMPANY PROFILE TENZA, a.s. is a leading Czech company which has grownto become a preferred supplier of industrial facilities prima-rily in power engineering since its foundation in 1993. The company’s production capabilities focus on construc-tion and renovation projects in the area of heat, power engi-neering and heat distribution system.The company can offer extensive expertise gained in con-struction and renovation of power plants, combined heatand power plants, heating plants, refuse incinerating plantsand biogas plants. TENZA, a.s. has laid hundreds of kilometres of hot waterpipelines and steam piping within renovation and upgradingprojects of district heating systems.Public facilities, industrial buildings and water engineeringare another core business of the company. When carrying out its projects, the company lays great em-phasis on environmentally friendly technologies. TENZA, a.s. offers its customers comprehensive solutions –from studies and concepts, through design documenta-tion and engineering, to implementation and putting intooperation. TENZA, a.s. is a distributor of pre-insulated piping systemsand valves made by leading foreign manufacturers intendedfor reliable and efficient district heating systems. In-house

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Mydlovary Heating Plant –Biomass Power Unit

A Combined Heat andPower Plant Burning Biomass in Žatec

Chocnějovice Biogas Plant

Renovation of the K1 andK2 Boilers Employing Fluidized Bed Technologyin Strakonice

The construction of a new combined heat and power unitburning wood biomass with an output of 10 MWt (1.8 MWe)employing the ORC technology, including a new hot-waterdistribution network and necessary technical base.

A municipal biogas plant employing an anaerobic tech-nology is designed to process 33,300 tonnes of input ma-terial out of which waste can amount to 28,500 tonnes. The installed electric power is 600 kWe and heat output2,200 kWt.

AHNÍKOV BIOGAS PLANT

Construction of a biogas plant in Chocnějovice / Radvaň biomass boiler plant in Banská Bystrica / Installationof a biomass burning boiler in Jihlava / Biomass boiler plant in Vlašim / Biomass boiler plant in Horní Planá

The conversion of two coal grate boilers K1 and K2 (withthe nominal output 36 tonnes of steam per hour each) intofluidized bed boilers enables the plant operator to burn lig-nite and biomass in the proportion 60:40 of the thermal out-put. The leading-edge fluidized bed technology combinesthe advantages of the stationary (bubbling) fluidized bedand circulating fluidized bed while meeting the required out-put and emission parameters.

PLANTS UTILIZING RENEWABLE ENERGY SOURCES

MYDLOVARY HEATING PLANT – BIOMASS POWER UNIT

A construction project of a new biomass power unit with anoutput of 11.7 tonnes of steam per hour and parameters of3.2 Mpa, 400°C and maximum output on the generatorconnectors of 2.66 MW. A condensing turbine with a regu-lated extraction maximum of 8.48 tonnes of steam per hourand parameters of 0.102 MPa, 105°C has been installed.Steam is transferred to the steam/water exchanger with anoutput of 5.44 MW; the fuel used is wood chips.

RENOVATION OF THE K1 AND K2 BOILERS EMPLOYING FLUIDIZED BEDTECHNOLOGY

A COMBINED HEAT AND POWER PLANT BURNING BIOMASS IN ŽATEC

OTHER SELECTED REFERENCE PROJECTS:

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Praha Libeň – Holešovice Heat Supply Main Connection of Lázně and Prosetice to the Teplice District Heating System

Heat Delivery from Dětmarovice Power Plant to Bohumín Connection of the South and Centre of Brno to a Central Heat Exchanger Station

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The construction of a new exchanger station with an outputof 65.8 MW that preferentially uses steam generated by a TG20 turbine, which increases the efficiency of its opera-tion. It consists of two basic heaters (twice 8.3 MW), two existing peak demand heaters (twice 10.9 MW) and one newpeak demand heater having an output of 25.5 MW. Whenthe new exchanger station is in operation, the temperatureof return water is maintained at 60°C, the exit temperatureis regulated to vary between 70 – 130°C in accordance withthe climatic conditions.

The construction of a hot water pipeline from Dětmaroviceto the town of Bohumín, construction of the main heatingnetwork in the centre of Bohumín and renovation of muni-cipal residential boiler units. Within the project 22 km ofheat distribution networks made of pre-insulated pipes werelaid having the dimensions DN 32 to DN 350 and 74 heatexchanger stations in buildings were installed.

HEAT DELIVERY FROM DĚTMAROVICEPOWER PLANT TO BOHUMÍN

Conversion of Steam to Hot Water Distribution System in Trutnov / Reduction of Emissions in Ostrov – HeatDistribution / Connection of Lázně and Prosetice to the Teplice District Heating System / Bílina – LedviceDistrict Heating System Grant Scheme / Connection of PP1, PP2 to the District Heating System in Bílina /Conversion of the Heat Conveying Medium for the Nad jazerom Housing Estate in Košice

The conversion of the aboveground distribution network ofthe district heating system to a new pre-insulated pipeline15 km long, installation of 170 new heat exchanger stationsin buildings and construction of a new central heat exchanger station.

DISTRICT HEATING SYSTEM CONSTRUCTIONAND RENOVATION

PRAHA LIBEŇ – HOLEŠOVICE HEAT SUPPLY MAINThe main has connected Holešovice Heating Plant and sub-sequently the Dolní Holešovice district heating system to thePrague Heat and Power Supply System that is interconnectedwith Mělník Power Plant. The project included the construc-tion of a tunnel in the length of 180 m driven below the Vltavariver bottom. Mining technology was applied to drill the tunnel.The hot water distribution system with the dimensions twiceDN 500 and temperatures 130 °C /70 °C in winter, 80 °C /50 °C in summer in pre-insulated piping was divided into fourpartial sections 3,656 m long.

CONVERSION OF STEAM TO HOT WATERIN RUŽOMBEROK

CONNECTION OF THE SOUTH AND CENTRE OF BRNO TO A CENTRALHEAT EXCHANGER STATION

OTHER SELECTED REFERENCE PROJECTS:

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Complete Renovation of the Prunéřov II PowerPlant

Flue Gas Desulphurisationand denitrification inČeské Budějovice Heatand Power Plant

De-dusting of a Coal Unloading Pit in Třineckéželezárny

Desulphurisation of the K2 – K4 Boilers in KarvináHeat and Power Plant

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The flue gas desulphurisation equipment for the K11 andK12 boilers utilizes wet limestone scrubbing technology andthe equipment reducing nitrogen emissions for the K11boiler consists of primary and secondary adaptations to theboiler (non-catalytic denitrification SNCR). The subject-mat-ter of the contract included related buildings and equipment.The desulphurisation capacity is designed for processing of410,550 Nm3/hr of raw gases with the output concentrationof SO2 under 200 mg/Nm3. The volume of denitrified fluegases of the K11 boiler reaches up to 214,000 Nm3/hr andNOx concentrations in flue gases on the outlet are below200 mg/Nm3. DE-DUSTING OF A COAL UNLOADING PIT

IN TŘINECKÉ ŽELEZÁRNY

Retrofit of the Existing Desulphurisation Equipment in Opatovice Power Plant / Desulphurisation in Plzeňskáenergetika / Complete Renovation – Tušimice Power Plant II, Phase 2 / De-dusting of Coal Trippers 3 and 4for Třinecké železárny / De-dusting of the Steelworks in VÍTKOVICE HEAVY MACHINERY a.s.

The delivery and installation of piping for the 23, 24, 25 units(three times TG 250 MW) with the capacity of approx. 530 tons. The project included the delivery, installation andsurface treatment of piping with dimensions of DN 15 – DN 1200 including critical piping made of the P91 material– piping for oil, steam, cooling water, feedwater, demi-water,and air.

ENVIRONMENTAL TECHNOLOGIES

DESULPHURISATION OF THE K2 – K4BOILERS IN KARVINÁ HEAT AND POWER PLANTThe construction of a joint desulphurisation unit in KarvináHeat and Power Plant for the K2, K3 and K4 boilers with thetotal heat output of 188 MW intended to reduce the contentof acid elements (primarily SO2) and solid pollutants in fluegases. The desulphurisation technology applied is CFB FGD(Circulating Fluidised Bed Flue Gas Desulphurisation)based on an expanded circulating fluidized bed (CFB).

COMPLETE RENOVATION OF THE PRUNÉŘOV II POWER PLANT

FLUE GAS DESULPHURISATION AND DENITRIFICATION IN ČESKÉ BUDĚJOVICEHEAT AND POWER PLANT

OTHER SELECTED REFERENCE PROJECTS:

The project was aimed at installing de-dusting equipmentin the unloading area above the grate and under the ceilingof the unloading pit, constructing dust extraction of the filling funnel of six roll feeders of hoppers to collecting con-veyors and dust extraction of hoppers of the collecting con-veyor. Thanks to this project the emission limit on solidpollutants on the outlet downstream the filter was reducedto maximum 10 mg/m3 with the air mass suctioned of mini-mum 22.2 m3

ef/s (80,000 m3ef/hour).

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Installation of Combined Heat and Power Units in Vrchlabí Installation of a CHP Unit in Brtnice

Combined Container Heat and Power Unit in Oslavany Installation of a CHP Unit in Uherský Brod

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The construction of a new production plant on stilts and in-stallation of two Quanto D1600 units with the total output of3,120 kWe and 3,582 kWt, separating exchangers 5 MWand addition of two accumulation tanks with the total capa-city of 270 m3, construction of a stack (50 m) and a newtransformer station with transformers twice 2,000 kVA.

The construction of a new combined heat and power unitin the immediate vicinity of the Primary School, equippedwith a Genset gas combined unit with an output of 600 kW.It is situated in a thick-walled concrete container with a soundproof ceiling and special soundproof door. The proj-ect included the installation of an accumulation tank with a capacity of 70 m3, a stack, gas connection, a kiosk-typetransformer station 0.4/22 kV, a kiosk-type high-voltage andlow-voltage distributing centre, demolition of old school stor-age rooms and construction of new ones, and relocation ofnetworks.

COMBINED CONTAINER HEAT ANDPOWER UNIT IN OSLAVANY

Installation of a CHP Unit within the District Heating System of Kladruby Rehabilitation Centre / Installationof Two CHP Units in Soběslav / Installation of a CHP Unit in Bertiny Lázně Třeboň / Installation of a CHP Unitin the Zahradní Boiler Plant in Lipník nad Bečvou / Installation of a CHP Unit in Brtnice

The project of upgrading heat delivery systems in Liberecconsisted in installing two hot water gas boilers with a totaloutput of 6 MW and a combined heat and power unitTEDOM Quanto 1600 with a heat output of 1,750 kW andelectric power 1,560 kW. The project also included lying ofmore than 3.5 km of the heat distribution network which isnewly in the pre-insulated form, renovation of three centralexchanger stations with a nominal output of 4.1 MW and installation of three domestic exchanger stations with an installed output of 0.5 MW.

INSTALLATION OFCOMBINED HEAT AND POWER UNITS

INSTALLATION OF COMBINED HEAT AND POWER UNITS IN VRCHLABÍWithin the renovation project of the district heating sourcetwo new hot water gas boilers were installed with outputs3.5 MW and 2.8 MW and two combined heat and power(hereinafter “CHP”) units with nominal electric power of1,600 kW in acoustic booths and two accumulation tankswith the capacity 150 m3 each.

RENOVATION OF A PART OF THE DISTRICT HEATING SYSTEM IN LIBEREC,FRANTIŠKOV, PHASE 2

INSTALLATION OF A CHP UNIT IN MEZIBOŘÍ

OTHER SELECTED REFERENCE PROJECTS:

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Sewage and Wastewater Treatment Plant in Pňovice

Sewage in Hubová,Ľubochňa, Švošov

Wastewater Treatment Plant in Bílá Lhota

Wastewater Treatment Plant in Výčapy

The construction of a new pressure sewer system consistingof polyethylene pipes with dimensions DN 50 to DN 160 mmand 18.9 km in length and a new municipal wastewater treat-ment plant with a capacity of 1,558 PE.

The subject-matter of the contract was the construction of a new biological wastewater treatment plant with a capacityof 755 PE including technical equipment and 5,671 m longsewers including 218 house sewers.

SEWAGE AND WASTEWATER TREATMENT PLANT IN VÝČAPY

Sewage and Wastewater Treatment Plant in Pňovice / Wastewater Treatment in Radslavice / Water MainOlšovec / Sewerage System in Náměšť na Hané

20.4 km of sewage network with a diameter of 300 mm, 12 pumping stations and 843 house sewers 5.9 km inlength were built within the project. A new mechanical/bio-logical two-lane wastewater treatment plant with a capacityof 4,103 PE has been designed comprising biological re-moval of carbon and nitrogen pollution, complete sludgestabilisation in a sediment trap and its mechanical dewa-tering in a belt press.

WATER ENGINEERING

SEWAGE AND WASTEWATER TREATMENTPLANT IN BÍLÁ LHOTAThe sewer system 17 km long takes wastewater to a newmechanical/biological wastewater treatment plant with aero-bic stabilisation of sludge and tertiary stage of wastewatertreatment process with a capacity of 1,280 PE. Plasticsewage piping with the dimensions from DN 200 to DN 300was used for the construction project.

HUBOVÁ, ĽUBOCHŇA, ŠVOŠOV: SEWAGEAND WASTEWATER TREATMENT PLANT

OTHER SELECTED REFERENCE PROJECTS:

MORAVIČANY, DOUBRAVICE, MITROVICE– PRESSURE SEWER SYSTEM ANDWASTEWATER TREATMENT PLANT

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Brno Refuse Incinerating Plant

Utilization of Waste Heat from a CHP Unit for Drying Sludge Produced in a Wastewater Treatment Plant

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TENZA, a.s. supervised the implementation of the BrnoWaste Management Project. The aim of this project was tobuild a combined heat and power unit combusting munici-pal waste while effectively utilizing the existing buildings andequipment of the refuse incinerating plant including thetransport (receipt) capacities. The site supervisor was re-ponsible for ensuring everyday site supervision and coordi-nation of the contract, checking the compliance of the workspecified by the contract with applicable legislation and pro-ducing expert reports and marketing promotion of the proj-ect. The project fully complies with current requirements ofEuropean legislation on modern waste-to-energy plants.

EQUIPMENT UTILIZING AND PROCESSING WASTE

UTILIZATION OF WASTE HEAT FROM A CHP UNIT FOR DRYING SLUDGE PRODUCED IN A WASTEWATER TREATMENT PLANT

The installation of two fluidized bed dryers with total dryingcapacity 6,000 t/year of wet centrifuge processed sludgewith initial moisture content of 65% of sludge weight andfinal moisture content of 10% of sludge weight. It was re-quired that the input heat should be reused for drying. Theheat returns to the heating system of the client (70/90 °C)with efficiency of 85 – 90 %. The project included the deliv-ery of a steam boiler utilizing waste heat with the output of550 kW and saturated steam parameters 16 bar, 204 °C.This steam is used as a heat conveying medium for fluidizedbed dryers. The dryers and the boiler were designed andbuild by the Research and Development Department ofTENZA, a.s.

CONSTRUCTION SUPERVISION (ENGINEERING) OF THE RENOVATION OF THE BRNO REFUSE INCINERATINGPLANT

WE MAKE YOUR IDEAS A REALITY

TENZA, a.s. Svatopetrská 35/7, 617 00 Brno, Czech Republic

Phone: +420 545 539 339, Fax: +420 545 214 614, tenza@tenza.cz

www.tenza.cz