Vine prunings biomass as fuel in wood stoves for thermal power production

Puglia, Marco; Pedrazzi, Simone; Allesina, Giulio; Morselli, Nicolò; Tartarini, Paolo

doi:10.18280/ijht.35sp0113

Cited by 14 publications

(16 citation statements)

References 5 publications

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“…These HHV values are among the lowest among all types of biomass analyzed and are very similar to the values observed for woody wastes of Eucalyptus g. (17.6 MJ kg −1 ). However, in other studies performed for the same species, HHV values are higher: Nasser and Salam [37] presented values between 18.75 and 19.9 MJ•kg −1 ; Puglia et al [38] between 18.54 and 19.0 MJ•kg −1 .…”

Section: Higher Heating Valuementioning

confidence: 69%

Residual Agroforestry Biomass–Thermochemical Properties

Enes

Aranha

Fonseca

et al. 2019

Forests

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Research Highlights: Biomass from Mediterranean agroforestry vegetation may be a potential source of renewable energy. However, due to the high heterogeneity of this type of resource, the study of its characteristics becomes necessary for its efficient use. Objectives: The aim of this study was to evaluate the thermal and chemical properties of 14 different kinds of agroforestry biomass groups: shrubs, forest, and agricultural wastes. Materials and Methods: The higher heating value (HHV), the elemental analysis (C, H, O, N, S), ashes, mineral elements (Na, K, Ca, Mg, and P), trace elements (Mn, Fe, Zn, Ni, Cu, Cr, and Cd) and halogen elements (F and Cl) were quantified and compared with CEN/TS 147775 and CENS/TS 14961 standards, looking forward to future use for energy purposes, namely through combustion processes, as an alternative to fossil fuels. Results: The shrubs present the highest values of higher heating value (20.5 MJ kg−1), followed by the forest wastes (19.2 MJ kg−1) and the lowest in the agricultural wastes (18.5 MJ kg−1). Concerning the elemental analysis, the difference between groups C, H, and O are very small and not statistically significant, while for N, S and ashes values are higher in agricultural than shrubs and forestry wastes. The same tendency was found for the mineral nutrients. For the trace elements, the lowest content of Mn, Fe, and Zn is found in agricultural, Ni, and Cr content in the shrubs and Cu in the forest wastes. The halogen elements are present in greater amount in shrubs than agricultural and forest wastes. Conclusions: Although the high values of the halogen elements which may raise sintering problems and corrosive effect on metal parts in furnace and boiler, in general the shrubs biomass are those with better characteristics for energy uses, namely through combustion processes.

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Section: Higher Heating Valuementioning

confidence: 69%

Residual Agroforestry Biomass–Thermochemical Properties

Enes

Aranha

Fonseca

et al. 2019

Forests

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“…In the future will be evaluated the possibility of substituting the thermal solar panel as the heat source for the dryer with a wood stove fueled with vine prunings, that can be an efficient [34] and low cost alternative.…”

Section: Discussionmentioning

confidence: 99%

Efficiency and Economical Assessment of a Solar Powered Dryer Combined with a Biomass Gasification System

Puglia¹,

Rizzo²,

Morselli³

et al. 2019

IJHT

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This work follows the study presented in Matera at the 4th AIGE/IIETA International Conference titled: "Analysis of energy saving potential of combined thermal solar power and micro scale gasification systems". This previous work was focused on the advantages gained through the integration between thermal solar power and a small scale gasification system and how to maximize them. The results showed that the best way to combine the two systems is to use to heat generated with the thermal solar power to dry the fuel rather than heat up the gasification air. In this second work the best scenario will be analyzed considering the annual irradiance in the Province of Modena in northern Italy. The systems considered in this study were the APL PP30, a biomass gasifier genset system able to produce 22 kWel at 50 Hz, and the Chromasun Micro-Concentrator (MCT), a high performance solar collector able of 2.2 kWt output peak at DNI of 1000 W m-2. Results showed that four thermal solar units are sufficient to dry the biomass consumed in a year by the gasifier, increasing substantially its efficiency. The economic feasibility of this scenario was investigated considering a possible substitution of the methane as the heat source of the biomass dryer. Considering a discount rate of 5 % and an inflation rate of 2.5 % it is possible to have a positive NPV after 22 years from the purchase of the 4 thermal solar units. Furthermore, it is possible to save 2286 kg of CO2 using solar energy rather than methane every year.

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“…Hemp hurd can be considered woody biomass since it is mainly composed of lignin (17-19%), hemicellulose (21-25%) and cellulose (34-48%) [2] and it is therefore interesting for thermochemical conversion processes. One of the most common thermochemical path to convert residual biomasses is gasification [3][4][5][6][7][8], while, few references are related to the combustion of residual byproducts in domestic stoves.…”

Section: Introductionmentioning

confidence: 99%

Domestic Heating: Can Hemp-Hurd Derived Pellet Be an Alternative?

Morselli¹,

Puglia²,

Pedrazzi³

et al. 2021

IJDNE

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Among the renewable sources, residual woody biomass from agricultural crops is becoming of great interest due to its lower environmental impact and one of the most growing agricultural sector, of the last decade, is the hemp industry which generates several kind of byproducts. In this paper, a blend of 50% of hemp-hurd and 50% of fir sawdust was pulverized and pelletized. The pellets were burned into a domestic pellet stove (9 kWth maximum nominal thermal power output) at different biomass flowrates. To compare results with a commercial-grade pellet, the tests were repeated by fueling the same stove with A2-grade pellets. Results shown that the pellet mixture 50/50 of fir sawdust and hemp-hurd is suitable for the commercial pellet stove used and that the slightly higher amount of ashes (2.7%), compared to pellet A2 (<1.2%), can be handled by the self-cleaning fire chamber. Comparable results were also obtained in regards with the stove global efficiency which ranged from 90.8-92.3% for the hemp pellets and 91-94% for the A2. A significant difference was noted in the biomass flowrate where, during the tests with hemp-hurd pellets a lower value was obtained (-20%) compared to A2. This resulted into lower power input in the stove and lower performances at the same nominal power output.

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Vine prunings biomass as fuel in wood stoves for thermal power production

Cited by 14 publications

References 5 publications

Residual Agroforestry Biomass–Thermochemical Properties

Residual Agroforestry Biomass–Thermochemical Properties

Efficiency and Economical Assessment of a Solar Powered Dryer Combined with a Biomass Gasification System

Domestic Heating: Can Hemp-Hurd Derived Pellet Be an Alternative?

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