Laboratory of Heat-Equipment Research and Testing (12)

Scope | R&D Tools | Accredited Services | Certificates | Membership | Partners

Scope of research

Processes and technologies for the efficient use of R.E.S. and reduction of environmental pollution

• physical and thermal properties of solid biomass and recovered fuel;
• fuel preparation methods and technologies;
• thermal conversion processes (combustion, gasification) of solid fuel;
• solid biofuel drying;
• solid biofuel dynamics and thermal conversion on moving grate and in fluidized bed;
• emission formation processes in heating appliances;
• efficiency of low capacity boilers and heating appliances fired by solid fuel.

 
Thermal physics, fluid mechanics and metrology

• flows mixing in chambers of limited dimensions and various geometry;
• permeability of gas mixtures through membranes;
• particulate emission reduction;
• flow dynamics in elastic channels;
• ultrasound propagation in flows;
• heat and mass transfer by molecular dynamics;
• maintenance of five national flow and pressure standards and assurance of measurement traceability

Tools and capabilities for scientific R&D

Set of modern experimental facilities and measuring instruments for investigation of:

• efficiency of small (up to 500 kW) space heating appliances fired by solid biofuel;
• reducing gaseous and particulate matter emission by implementation of precipitation devices;
• composition of biomass and various solid fuels as well as their physico-chemical properties;
• liquid and gas flow dynamics in channels and chambers at the various inlet and boundary conditions, flow regime and its instability, physical properties variation;
• inner flow structure of separated flow or flow in cavities situated in microchannel walls by using particle image velocimetry methods and macro/microPIV systems for flow visualization;
• permeability of membranes and its use for separation of disadvantageous components from gas mixture.

 
CFD aplication for numerical simulation of:

• flow dynamics analysis using software package ANSYS® Fluent®;
• mixing of combustibles species and oxygen to enhance combustion process in furnace;
• multi-physics numerical investigation using software package COMSOL Multiphysics®;
• Coupled CFD-Discrete Element Method numerical research using homemade software package Bed_Motion, software package XDEM and Open Source package OpenFOAM®.
• Molecular Dynamics investigations using software package LAMMPS®.

Our expertise for implementation of innovative projects and services

• assurance of traceability of liquid, gas and heat supply and consumption measurement on national and international levels;
• conformity assessment of measuring instruments and heat appliances before placing on the market or entry into service, or being in service;
• fluid dynamics under the influence of flow disturbances and flow regimes;
• numerical analysis and numerical methods applied in multi-physics problems;
• particles system (granular mater) dynamics;
• molecular dynamics in heat and mass transfer problems.

Accredited & notified services

Scope as Designated institute (DI) for maintenance of national standards for^[1]:
◦ air (gas) speed;
◦ air (gas) volume and flow rate;
◦ water volume and flow rate;
◦ liquid (other than water) volume and flow rate;
◦ pressure.

Notified (Id. No. 1621) for conformity assessment of^[4]:
◦ water and heat meters (B, F and D modules) and measuring systems of liquids (other than water) (F module) against European Parliament and Council Directive 2014/32/EU;
◦ room heating appliances fired by solid fuel against European Parliament and Council Regulation (EU) No. 305/2011.

Calibration services

Accredited in compliance with the requirements of LST EN ISO/IEC 17025 to perform the calibration of^[2]:
◦ measuring instruments for liquids and gas flow, thermal energy, pressure, air humidity and temperature, capacity measures as well as water and gas flow standard facilities.

• Accreditation certificate and scope No. LA.02.004

Testing services

Accredited in compliance with the requirements of LST EN ISO/IEC 17025 to perform^[2]:
◦ tests of heating boilers, appliances burning gaseous fuels, solid biofuel, solid recovered fuel, water and thermal energy meters (Table 1)
◦ assessment and verification of performance of space heating appliances burning solid fuel according to requirements of Regulation (EU) No. 305/2011 of the European Parliament and of the Council (Table 2).

• Accreditation certificate and scope No. LA.01.036
• Appendix: Scope of Accreditation (actual)

Inspection body (Inspection services)

Accredited as the A type inspection body in compliance with the requirements of EN ISO/IEC 17020 to perform^[3]:
◦ verification of measuring instruments and equipment.

Product certification body (Certification services)

Accredited in compliance with the requirements of LST EN ISO/IEC 17065 to conformity assessment of^[5]:
water and thermal energy meters and measuring systems for liquids other than water according to Technical Regulation of Measuring Instruments approved by the Order of Minister of Economy of the Republic of Lithuania No. 4-699 „On Technical Regulation of Measuring Instruments” of 30 October 2015 which take over the Directive 2014/32/EU of the European Parliament and of the Council of 26 February 2014 with amendments made by Commission delegated Directive 2015/13/EU.

 
Issuing authority:
Lithuanian National Accreditation Bureau
 
[1] Note. The measuring range, calibration and measurement options are available on the BIPM website: http://www.bipm.org/kcdb
[2], [3], [5] Note. The scope of accreditation can be found on the website of the Lithuanian National Accreditation Bureau: http://www.nab.lrv.lt
[4] Note. The scope of notification can be found on the NANDO website: http://ec.europa.eu/growth/tools-databases/nando/

Certification

Certification procedure is defined in the document SSCH-PS 01:2022 Certifikation schema.

Laboratory of Heat-Equipment Research and Testing – Notified Body (Id. No. 1621) as listed in NANDO database.

Application forms for certification:

• 🇬🇧 Application for conformity assessment under Module B
• 🇬🇧 Application for conformity assessment under Module D
• 🇬🇧 Application for conformity assessment under Module F

 
The Certification fee consists of the costs related to the analysis of the application and related documents, the inspection or testing of the object to be assessed, and the evaluation of the results.

Information on the Complaints and Appeals procedures is available upon request to the customer at testlab@mail.lei.lt.

For further information, please contact Mindaugas.Mockevicius@lei.lt.

Membership in international organizations

EURAMET – European Association of National Metrology Institutes
COOMET – Euro-Asian Cooperation of National Metrological Institutions
NoBoMet – European Platform of Notified working in Legal Metrology

Laboratory partners and customers

Customers – all economic and research entities, the activities of which require accredited (or additionally notified) calibration, testing and conformity assessment services defined under legal acts.

Partners – Research institutions:

Lithuanian University of Health Sciences;
Kaunas University of Technology;
Center for Physical Sciences and Technology;
Nicolaus Copernicus University;
University of Luxembourg;
University of Twente;
The Szewalski Institute of Fluid-Flow Machinery Polish Academy of Sciences.

Partners – Companies: