Analysis of the possibilities of using a hybrid heating system in the process of anaerobic biomass decomposition in a container fermenter
Journal Title: Journal of Research and Applications in Agricultural Engineering (ISSN 1642-686X) - Year 2018, Vol 63, Issue 4
Abstract
The subject of the work concerns the design of a hybrid solar system to maintain mesophilic conditions in the process of anaerobic biomass decomposition. The main purpose of the work was to design a hybrid heating installation for a biomass utilizer. It was assumed to simulate the use of three energy sources: photovoltaic panels, solar collector and heat from biogas combustion. It was assumed that the results of the analysis will be supported by evaluation of biogas yield for waste consisting food. The quasi-continuous and periodic operation of the rendering chamber was tested in relation to the energy demand for maintaining the mesophilic conditions in the fermentation process. As a result of the objective of the work, biogas productivity tests of the selected substrate mixture were carried out. A general design of the utilization plant (micro-biogas plant) was also carried out, including thermal insulation and the design of the heating system. In order to determine the heat losses of the digester, the methodology based on the heat transfer coefficient by individual partitions was used. The level of biogas production was determined using a test stand complying with the requirements of DIN 38 414 S.8. On the basis of the volume of biogas production, thermal deficiencies resulting from its combustion were determined. Biogas deficiencies constituted more than 30% in the worst computing conditions for the periodic system and about 6% for the quasi-continuous system. The designed heating installation, which uses additional solar energy, in the case of a periodic system, allowed to cover 100% of the summer heat demand. In winter, the coverage of heat demand was around 90% for average monthly temperatures in December and January and 80% for the worst computing conditions. Identified energy shortages can be limited by optimizing the control of the biological process and optimizing the parameters of thermally insulating layers.
Authors and Affiliations
Mariusz Adamski, Marcin Herkowiak, Natalia Mioduszewska, Ewa Osuch, Andrzej Osuch, Gniewko Niedbała, Magdalena Piekutowska, Przemysław Przygodziński
Keywords
Related Articles
- EP ID EP514574
- DOI -
- Views 76
- Downloads 0
Effect of differential nitrogen fertilization on the nutritive value of fodder mallow (Malva verticillata L.) and maize (Zea mays L.) Eurostar variety
The aim of the research was to determine and analyze chemical and biological properties of fodder mallow and maize (Eurostar variety) as well as opportunities of their cultivation in pure sowing and when dedicated to fod...
A method to assess reliability of seasonally operated machines using fuzzy logic principles
The aim of this study was to develop an original method, which would objectively quantify reliability of seasonally operated machines. The method uses an algebraic deduction model and fuzzy logic algorithms facilitating...
Chlorophyll fluorescence as a quality indicator of root parsley (Petroselinum crispum var. Lenka) seeds
Requirements concerning seed quality are growing constantly. Parsley is a plant species producing seeds with low genetic seed vigour. Parsley seeds are usually germinating slowly and this process is extended in time. Lac...
A comparison of the number of selected groups of epiphytic microorganisms in meadow sward fertilised with various doses of natural fertilisers and NPK
Increasing interest in organic farming and consequently in the application of natural fertilisers poses a risk of modifying qualitative and quantitative composition of microorganisms’ populations living on plants fertili...
Biogas production from bakery wastes - dynamics, retention time and biogas potentia
This paper presents results of bakery-waste methane-fermentation. The scope of the study covers the determination of basic physicochemical parameters, process dynamics and retention time as well as biogas composition and...