Delivery of energy plant

Maszyny przemysłowe, armatura

Tryb zamówienia	Zapytanie ofertowe
Rodzaj zamówienia	Dostawy
Tytuł	Delivery of energy plant
Zamawiający	Dostępne dla zalogowanych
Miejsce realizacji	Chlastawa
Data publikacji	2025-04-18
Data składania ofert	19/05/2025, Godzina 23:59
Dokumenty do pobrania	Dostępne dla zalogowanych
Kod CPV	429140006 Urządzenia do recyklingu 421000000 Maszyny do wytwarzania i wykorzystywania mocy mechanicznej 421600008 Układy kotłów grzewczych 446200002 Grzejniki centralnego ogrzewania i kotły grzewcze, i ich części 446212001 Kotły grzewcze
Numer przetargu	6202948

<div>
 <h1>Delivery of Energy plant</h1>

<h2>Załączniki</h2>
 <ul>
 <li>Załącznik nr 1 - formularz ofertowy</li>
 <li>Załącznik nr 2 - oświadczenia</li>
 <li>Zapytanie ofertowe</li>
 </ul>
 
 <h2>Części zamówienia</h2>

<h3>Delivery of energy plant</h3>
 Przedmioty zamówienia
 Boiler/incineration system specification 
 
a) Thermal oil heater type, design and efficiency 
 
Boiler type and efficiency 
-Boiler Type: Three-way pass thermal oil heaters are not accepted. Only a single-way pass radiation heater, followed by a set of convection heaters, is permitted. 
-Shell company heat transfer oil S2 will be used. 
-Boiler efficiency: Minimum 87%: The thermal efficiency of the thermal oil boiler shall be calculated based on the Lower Heating Value (LHV) of the fuel. Efficiency shall be verified using the indirect method, in accordance with internationally accepted engineering practices. 
Although EN 12952 primarily addresses water-tube steam boilers, EN 12952-15 shall be used as a reference standard for maintaining high heat transfer efficiency – particularly regarding the prevention of internal deposits and thermal degradation of heat transfer surfaces, which are also relevant for thermal oil systems. 
The efficiency calculation shall include all significant losses, such as: 
-Flue gas losses, 
-Radiation and convection losses, 
-Unburned fuel or combustion inefficiencies (if applicable). 
The Supplier shall submit, along with the offer, a detailed efficiency report demonstrating compliance with the quoted performance values under the specified design conditions. 
 
Boiler design 
Design Standards and Pressure Equipment Compliance 
All pressure equipment and assemblies falling within the scope of the Pressure Equipment Directive (PED) 2014/68/EU shall be designed, manufactured, and conformity-assessed in full compliance with the directive. 
Such equipment shall: 
-Bear the CE marking 
-Be accompanied by a valid EU Declaration of Conformity, 
-Unless explicitly exempted by the PED. 
A recognized design and manufacturing code acceptable under the PED shall be applied, such as EN standards, AD 2000, TRD, depending on the nature and risk category of the equipment. 
In addition, the thermal oil system shall be designed and constructed in accordance with DIN 4754, which defines the safety, operational, and design requirements for systems using organic heat transfer media. Pressure-retaining components of the thermal oil system shall meet the relevant requirements of AD 2000 or an equivalent standard approved under the PED. 
Instrumentation and Operational Supervision 
All necessary components and equipment shall be equipped with appropriate instrumentation to ensure proper and safe operation without continuous supervision for a minimum period of 24 hours. 
 
b) Thermal Oil System and Heat Transfer 
The Tenderer submits an offer for the full scope of the subject of the contract, considering Option 1, Option 2 or Option 1 and Option 2. 
Design Capacity: 
Option 1: Maximum continuous output of 4 MW (in connection with Sifter/dryer 1,8 MW). 
Option 2: Maximum continuous output of 5 MW (in connection with Sifter/dryer 2,8 MW). 
Thermal oil heater flue gas outlet temperature to be maximum 175 °C (after passing the combustion air preheating system). 
Flue Gas Parameters: 
−Convection heater inlet temperature: maximum 800 °C, 
−Thermal oil supply temperature: 280 °C, 
−The flue gas speed at the convection heater must be indicated in the offer form. 
Thermal oil to PB press: 
−Transfer from the power plant pump room to the press secondary circuit shall be conducted via two speed-controlled transfer pumps, with one serving as a backup. 
−Continuous PB Press: 2,2 MW. 
−Thermal oil supply temperature: 280 °C. 
−Thermal oil temperature difference at PB Press: 20 °C. 
−Estimated piping pressure drop: 1,2 bar. 
−Pressure difference at secondary circuit: 1,5 bar. 
Thermal oil to sifter / dryer heating: 
Option 1: Sifter/dryer 1,8 MW (in connection with Boiler with maximum continuous output of 4 MW). 
Option 2: Sifter/dryer 2,8 MW (in connection with Boiler with maximum continuous output of 5 MW). 
−Using the return oil from the PB press, the thermal oil pumps are to be located in the PB press secondary pump room. 
−Thermal oil supply temperature: 260 °C. 
−Thermal oil temperature difference: 26 °C. 
−Estimated piping pressure drop: 1,2 bar. 
−Pressure difference at heat exchanger: 1,5 bar. 
Thermal oil connection for future installations: 
Two supplementary connection points at the zero-pressure header has to be foreseen including valves. 
−2 x DN 80 (one for supply and the other for return). 
−2 x DN 65 (one for supply and the other for return). 
 
c) Fuel specification / Firing sources: 
The system will be heated exclusively with wood dust sourced from furniture factories. The table below provides an analysis of the dust composition. Since wood dust from furniture factories will be used, it is essential to consider that Polish authorities require such systems to meet the same emission limits as those set for waste incineration plants. 
Dust for dust burner: Operated as a multi-fuel burner using wood dust and light oil. 
Maximum Dust fractions: 100% &lt; 1 mm, with 90% &lt; 0.5 mm. 
Grate size: A grate firing system is not required. 
Combustion chamber design: The burner combustion chamber must be designed for a minimum retention time of 2 seconds at 850°C after the last air entry. 
 
d) Other requirements: 
The subject of the contract includes as well: 
-Continuous Light-End Removal System. 
-Nitrogen Blanket System. 
Primary and transfer thermal oil Pumps: 
-Maximum speed for primary and transfer pumps 1500rpm. 
-The pumps to be speed controlled. 
-Pump manufacturer: Allweiler or KSB. 
Leakage Monitoring System, including: 
-Bearing temperature monitoring. 
-Vibration monitoring. 
-Oil leak detection system. 
Emergency and control cooler: 
-To be an air-cooled system. 
-Minimum capacity 2 MW. 
Heat Exchanger Surface Cleaning System 
The heat exchanger (convection heater and economizer sections) shall be equipped with an effective surface cleaning system to maintain thermal performance and minimize fouling. The system shall meet the following requirements: 
-Each convection heater and economizer shall be equipped with at least one soot blower for automated cleaning. 
-The cleaning medium shall be compressed air, generated from ambient air. 
-The system shall operate with a single air compressor and a compressed air dryer to ensure reliable cleaning performance. 
-A compressed air storage tank with a minimum volume of 16 m³ shall be provided to ensure sufficient air volume and pressure for cleaning cycles. 
 
Fan Specifications 
Cold Gas Fans: 
Maximum operating speed: 1500 rpm. 
Hot Gas Fan (low dust load): 
In contact with flue gas containing a dust load of &lt; 10 mg/Nm³. 
Maximum operating speed: 1500 rpm. 
Hot Gas Fan (high dust load): 
In contact with flue gas containing a dust load of &gt; 150 mg/Nm³. 
Maximum operating speed: 1000 rpm. Adequate wear protection. 
Shall be equipped with adequate wear protection to ensure reliable long-term operation under abrasive conditions. 
Expansion and Fill and Drain Tank: 
-Design temperature: 300 °C. 
-Maximum allowable operating pressure: 0,5 barg. 
-Design pressure: 2 barg. 
-The expansion Tank minimum Volume: 5m³. 
-The Fill and drain Tank minimum Volume: 30 m³. 
 
Dust Cleaning – Dry Sorption System: 
The dry sorption system shall be designed for reliable and safe operation, ensuring effective dust and acid gas removal. The following key components and design criteria shall be met: 
-A spark separator shall be installed upstream of the bag filter to ensure effective spark interception, thereby protecting the filter media from thermal damage and fire risk. 
The additive dosing system shall be a volumetric dosing system, suitable for dry sorbents. Big bag unloading station should be included in price. Additive storage silo with dosing unit should be priced as an option (point IVV of the Offer form) and will not be considered in the evaluation. 
The system must be designed for continuous operation and easy maintenance, with safe handling of additives and effective integration into the overall flue gas treatment process. 
Fire Detection System for the Thermal Oil Heater, consisting of: 
-Flue gas pressure and temperature transmitters to be installed after each convection heater section. 
Fire Protection System: 
-Fire nozzles to be installed after each convection heater section and before the radiation heater. 
-The system will be operated manually in case of fire.

Okres gwarancji: 24 months
 
 <h2>Kryteria oceny</h2>
 1. Fulfilment of the conditions for participation in the procedure set out in point 5 of Request for quotation. 
2. Submission of a tender offer by the deadline. 
Failure to meet the above criteria will result in the rejection of the tender offer. Criterion No. 1 may be supplemented.
 1. The tender offer must comply with Point 2 of the Request for Quotation. 
2. Submission of all appendices as per Point 2.2. 
3. The scope of the contract offered is in accordance with the specified requirements. 
Non-compliance will result in rejection of the offer. Supplementation is permitted.
 Order price 
Net order price 
Weight: 60% 
Methodology for awarding points: (price of the tender offer with the lowest net price among the evaluated tender offers / price indicated in the evaluated tender offer) x 100%
 Thermal Efficiency 
Weight: 25% 
Methodology for awarding points: (offered efficiency / maximum efficiency) x 25%
 Electrical Power Consumption 
Weight: 15% 
Methodology for awarding points: (lowest power consumption / offered power consumption) x 15%
 
 <h2>Warunki zmiany umowy</h2>

The Contracting Authority provides for the possibility of amending the provisions of the concluded contract in relation to the content of the tender offer on the basis of which the Supplier was selected, in the following scope: 
1) The necessity to introduce amendments shall result from amendments to contracts between the Contracting Authority and a party other than the Supplier, including another supplier or institution supervising the performance of the project under which the Contract is executed, while the amendment may concern only those provisions of the contract that shall be directly affected by the modifications, and the amendments shall not lead to an increase in the Supplier&#039;s remuneration. 
2) Due to a prolonged procedure for the selection of the Supplier in the procedure for the award of this contract, or due to other circumstances that could not have been foreseen beforehand, preventing the proper execution of the deliveries covered by the contract, it shall become necessary to amend the completion dates specified in the request for quotation or the contract. 
3) Amendments to the contract completion date shall be acceptable in cases of: 
a) force majeure events preventing the delivery of the subject of the contract, 
b) circumstances that could not have been foreseen by the contracting parties despite the exercise of due diligence or reasons of formal and legal obstacles beyond the control of the contracting parties, 
c) delays at earlier stages of the project, 
d) delays in or changes to administrative or other institutions&#039; decisions (decisions by public authorities, changes to the applicable provisions of law, awaiting previously unforeseen but necessary expert assessments, court rulings, etc.), beyond the control of the Contracting Authority and the Supplier, which the parties were unable to foresee despite exercising due diligence, 
e) performing the subject of the contract before the contractual completion date and obtaining the funds to pay the Supplier&#039;s remuneration at an earlier date by the Contracting Authority, 
f) a need to perform deliveries involving the partial replacement of delivered products or installations, an increase in current supplies, or the expansion of existing installations may arise during the performance of the subject of the contract. Such deliveries shall be necessary if a change of contractor would lead to the acquisition of materials with different technical properties, resulting in technical incompatibility or disproportionately large technical difficulties in the use and maintenance of these products or installations., 
g) a need to perform additional deliveries, services, or construction works from the existing contractor, not covered by the basic order, may arise during the performance of the subject of the contract, provided that they have become necessary, and all of the conditions are met (according to point 9.6). 
4) Amendments to the remuneration of the Contractor shall be acceptable provided that: 
a) the amendment does not lead to a change in the general nature of the contract, and 
b) the total value of the amendment is less than EUR 143 000,00 and less than 10% of the value of the order originally specified in the contract (in the case of request for quotation regarding delivery of the line / equipment). 
5) In the case the need to amend the contract is caused by circumstances that the Ordering party, acting with due diligence, could not have foreseen, amendments to the remuneration of the Contractor shall be acceptable provided that: 
a) the amendment does not lead to a change in the general nature of the contract, and 
b) the value of the amendment does not exceed 50% of the value of the order specified originally in the contract signed with the selected Contractor. 
6) Amendments to the remuneration of the Contractor shall be acceptable in the case additional supplies from the current Contractor, not covered by the basic order become necessary, and the following conditions have been met: 
a) the change of the current Contractor cannot be made for economic or technical reasons, in particular concerning the interchangeability or interoperability of equipment, services or installations ordered under the original order, and 
b) the change of the current Contractor would cause significant inconvenience or a significant increase in costs for the Ordering Party, and 
c) the value of the amendment does not exceed 50% of the order value specified originally in the contract signed with the selected Contractor. 
All changes to the provisions of the contract shall be made in writing otherwise shall be null and void. The occurrence of any of the circumstances mentioned above to the extent that they affect the performance of the contract shall result in that the term of the contract may be extended/amended accordingly by the time required to duly complete its subject manner. Any delays/changes must be documented by relevant protocols signed by the Supplier and the Contracting Authority, based on which the parties shall agree upon new deadlines.
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