LACO

marco.torresi — Mon, 04 Feb 2019 09:01:46 +0000

LACO marco.torresi Mon, 02/04/2019 - 10:01

Lab full name

Combustion Laboratory

ERC 2nd Level Code

PE8 Products and Processes Engineering

ERC 3rd level Code

PE8_4 Computational engineering

PE8_5 Fluid mechanics, hydraulic-, turbo-, and piston engines

PE8_6 Energy processes engineering

Research Activities

The MILD (Moderate or Intense Low-oxygen Dilution) combustion laboratory is one of the laboratories of the Department of Mechanics, Mathematics and Management (DMMM). The test rig can be conducted either under conventional combustion conditions, with air as oxidizing gas, or using an air-flue gas mixture with varying levels of exhaust gas and different temperature levels, in such a way as to obtain a MILD combustion. The rig is equipped with automatic control systems capable of varying the mass flow rates, the dilution factors, as well as the thermal power.
The system consists of:
•   A balanced draft test rig for the execution of experimental campaigns aimed to the observation of both conventional and MILD combustion processes;
•   Two burners: an experimental burner with an 80 kWt load capacity and a 200 kWt auxiliary fueled by natural gas. The experimental burner can be fueled by liquid diesel oil or gaseous natural gas and is able to operate under both conventional or MILD combustion regimes;
•   Two fans (a blower and discharge fan), both regulated by a Variable-Frequency Drive (VFD), capable of controlling the air mass flow rate and the flue gas recirculation together with the pressure inside the combustion chamber;
•   The exhaust gas cooling system based on a shall and tube heat exchanger.

A facility of the MILD combustion lab is represented by the transesterification plant for the production of bio-diesel from vegetable oils to be used as fuel in the experimental burner.

Department

DMMM

Contact Person

Marco Torresi

marco.torresi@poliba.it

Technical Staff

Vito Mele

Companies and Institutions

CCA

Ansaldo Boilers

Itea

ICMEA

Facilities

Control and data acquisition system;

Personal computer for the acquisition and management of dynamic data

Sampling and conditioning systems for the gravimetric measurement of the particulate matter (PM) with the lower limit PM 2.5

Impedance tube for the acoustic characterization of burners

Services

tests on burners, operating both in conventional and combustion MILD (flameless), with a maximum power of less than 80-100 kWt

Address / How to reach us

Via Amendola 132 ( ex Scianatico)

Hours

from 9.00 to 18.00 after contact by mail

HPT Lab

marco.torresi — Mon, 28 Jan 2019 10:03:00 +0000

HPT Lab marco.torresi Mon, 01/28/2019 - 11:03

Lab full name

Laboratory for hydraulic pumps and turbines

ERC 2nd Level Code

PE8 Products and Processes Engineering

ERC 3rd level Code

PE8_4 Computational engineering

PE8_5 Fluid mechanics, hydraulic-, turbo-, and piston engines

PE8_6 Energy processes engineering

Research Activities

The lab is constituted by a closed-loop rig for experimental tests and studies on hydraulic pumps, turbines and PAT (Pumps As Turbines). Due to the possibility to test pumps both in direct and reverse mode, two hydraulic circuits can be set by acting ON/OFF valves. The turbo machinery under investigation is installed in the test section where it is directly coupled with a DC motor controlled by a four-quadrant converter. The electric machine works as motor during “pump test” and generator during “turbine test”. The test section is provided by a special platform with a rail system, allowing the investigation of turbomachinery of different size.
During “turbine tests”, a booster pump, driven by another DC motor, supplies the hydraulic energy through pipelines to the turbine. In this case, the motor that drives the booster pump is partially powered by the turbine.
The operating range of the test rig is defined by H-Q characteristics of the booster pump and the constant power line corresponding to the maximum capacity of the loading generator.
-   Turbine tests:
•   Max test head equal to 280 mH2O.
•   Max discharge equal to 650 m3/h.
•   Max rotational speed of the testing machine: 2400 RPM
•   Max power equal to 480 kW
-   Pump tests:
•   Max test head equal to 270 mH2O.
•   Max discharge equal to 350 m3/h.
•   Max rotational speed of the testing machine: 2400 RPM
•   Max power equal to 480 kW

The test rig is equipped with a surge tank with a capacity of 8 m3 and an air pressure control system that can increase the absolute pressure up to 11 bar(abs). In the case of cavitation tests, a vacuum pump can reduce the absolute tank pressure to 0.2 bar(abs);
During machine characterization, a closed loop cooling system controls the water temperature in the test rig (25 ± 0,1 °C);
The test rig is equipped by a control and the data logging system, installed in a control room.
Another open-loop hydraulic circuit is used to study and test turbines for low head hydropower applications.

Department

DMMM

Contact Person

Marco Torresi

marco.torresi@poliba.it

Companies and Institutions

Nuovo Pignone Bari

Facilities

Booster Pump (Max head: 280 m, Max discharge: 550 m3/h, Max power: 516 kW, Max rotating speed: 2267 rpm)

PAT

Two 480 kW DC motors

Closed loop water cooling system