A dynamic model of a 100 kW micro gas turbine fuelled with natural gas and hydrogen blends and its application in a hybrid energy grid

Gaeta, Alessandro di; Reale, Fabrizio; Chiariello, Fabio; Massoli, Patrizio

doi:10.1016/j.energy.2017.03.173

Cited by 68 publications

(22 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent decades, gas turbine engines have been used extensively in prime movers and devices for power generation [1]. The stabilization of the flame has been attained in most gas turbine combustors using swirling flows.…”

Section: Extended Abstractmentioning

confidence: 99%

LES-CMC Simulations of Strong Swirling Confined Flames in a Model Gas Turbine Combustor

Gaikwad¹,

Sreedhara²

2020

World Congress on Momentum, Heat and Mass Transfer

View full text Add to dashboard Cite

Section: Extended Abstractmentioning

confidence: 99%

LES-CMC Simulations of Strong Swirling Confined Flames in a Model Gas Turbine Combustor

Gaikwad¹,

Sreedhara²

2020

World Congress on Momentum, Heat and Mass Transfer

View full text Add to dashboard Cite

“…The combined production of heat and electricity by burning gas and the use of a microturbine is much more environmentally friendly than the combustion of coal for heat production. What is more, gas microturbines could work not only as individual energy sources but also in cooperation with other commonly known systems such as hybrid systems with photovoltaic panels [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Optimisation of stress distribution in a highly loaded radial-axial gas microturbine using FEM

Zych

Żywica

2020

Open Engineering

View full text Add to dashboard Cite

AbstractThe article discusses the stress optimisation process of the highly loaded disc of a high-speed radial-axial microturbine. At the design stage, the strength optimisation is vitally important for these types of devices because they must withstand very high temperatures (600∘C in this case) and be capable of operating at high rotational speeds (96,000 rpm in this case). Calculations were made using a three dimensional FE numerical model. The optimisation process is strictly connected with the choice of materials — which in this case are Inconel 738 (nickel-cobalt super alloy) and silicon nitride. Several stress reduction methods were developed, which took into account the mass of the disc, the rotational speed of the rotor and the complex shape of the rear part of the disc. Numerical computations helped to choose the best optimisation method, which decreased maximum reduced von Mises stresses by about 45% (from 1,288 MPa to 705 MPa). The methods proposed in this article are universal and can be implemented in the design process of various high-speed radial-axial microturbines. This article could be of interest to scientists and engineers who deal with highly loaded microturbines, which are increasingly used in many industrial sectors.

show abstract

“…In the last decade, several research projects were carried out to explore which were the potential advantages and drawbacks for the most common commercial devices, hailing from the hydrogen blending [16][17][18][19][20][21]. Notwithstanding, from literature review it emerges that the research efforts were mainly focused on reciprocating internal combustion engines, on MGTs (Micro Gas Turbines) and on boilers behaviour, when they are fuelled with H 2 NG [22][23][24][25]. To the best of the authors knowledge, research projects dealing with Gas Adsorption Heat Pumps (GAHP), powered by hydrogen blends are missing.…”

Section: Introductionmentioning

confidence: 99%

Adsorption gas Heat Pump fuelled with hydrogen enriched natural gas blends: the analytical simulation model development and validation

et al. 2020

View full text Add to dashboard Cite

This study deals with the implementation of an analytical model to simulate the energy performance associated to a commercial Gas adsorption Heat Pump, when H2NG (Hydrogen Enriched Natural Gas) blends are used as fuel. In detail, a water source heat pump manufactured by Robur (GAHP-WS) has been used as a reference device for building the simulation model within the MATLAB-Simulink environment. Thereafter, the simulation results have been validated by the experimental campaign, testing on field and in actual operating conditions the heat pump. Specifically, the model has been developed by implementing the WaterAmmonia mass and energy balances for each component. It is able to evaluate fuel consumption, efficiency in terms of GUE, required thermal power from the cold heat sink as well as the water outlet temperature at the evaporator, once the heating load is used as the main input. The experimental campaign for the model calibration and validation has been carried out over the winter season. Additionally, the heat pump performance has been detected when it operates to supply hot water at 60 °C and 55 °C, and it is fuelled with growing hydrogen fractions, starting from 0% vol., 5% vol. up to 10% vol. In the end, the standard errors as well as the relative ones affecting the main output parameters have computed for the validation process. From the outcomes it emerges that the average relative standard error related to all load conditions is lower than 2.5% for natural gas operation. On the contrary, it ranges between 2.5% and 4% when H2NG at 5% and 10% by volume have been burnt.

show abstract

A dynamic model of a 100 kW micro gas turbine fuelled with natural gas and hydrogen blends and its application in a hybrid energy grid

Cited by 68 publications

References 43 publications

LES-CMC Simulations of Strong Swirling Confined Flames in a Model Gas Turbine Combustor

LES-CMC Simulations of Strong Swirling Confined Flames in a Model Gas Turbine Combustor

Optimisation of stress distribution in a highly loaded radial-axial gas microturbine using FEM

Adsorption gas Heat Pump fuelled with hydrogen enriched natural gas blends: the analytical simulation model development and validation

Contact Info

Product

Resources

About