scholarly journals Biomass utilization for the process of gasification

2008 ◽  
Vol 56 (2) ◽  
pp. 147-156
Author(s):  
Josef Spěvák ◽  
Miroslav Havlíček
Keyword(s):  
Czech Republic ◽  
Renewable Resources ◽  
Fixed Bed ◽  
Electrical Energy ◽  
Biomass Energy ◽  
Fuel Composition ◽  
Thermophysical Characteristics ◽  
The Czech Republic ◽  
Testing Conditions ◽  
Gasification Process

Biomass as one of the renewable resources of energy has bright future in utilization, especially in obtaining various forms of energy (heat, electrical energy, gas).According to the conception of energy policy of the Czech Republic and according to the fulfillment of the indicators of renewable resources using until the year 2010, the research of thermophysical characteristics of biofuels was realized.There were acquired considerable amount of results by combustion and gasification process on the basis of three-year project „Biomass energy parameters.” By means of combustion and gasification tests of various (biomass) fuels were acquired the results which were not published so far.Acquired results are published in the fuel sheets, which are divided into four parts. They consist of information on fuel composition, ash composition, testing conditions and measurand overview. Measurements were realized for the process of combustion, fluidized-bed gasification and fixed-bed gasification. Following fuels were tested: Acacia, Pine, Birch, Beech, Spruce, Poplar, Willow, Rape, Amaranth, Corn, Flax, Wheat, Safflower, Mallow, and Sorrel.

scholarly journals Regional food and feed self-sufficiency related to climate change and animal density – a case study from the Czech Republic

2019 ◽  
Vol 65 (No. 5) ◽  
pp. 244-252
Author(s):  
Josef Pulkrábek ◽  
Lukáš Pacek ◽  
Jaroslav Čítek ◽  
Roman Stupka ◽  
Kateřina Pračke ◽  
...  
Keyword(s):  
Czech Republic ◽  
Crop Production ◽  
Arable Land ◽  
Climate Impacts ◽  
Biomass Energy ◽  
Baseline Scenario ◽  
The Czech Republic ◽  
Yield Decline ◽  
Self Sufficiency ◽  
Food And Feed

A new food and feed self-sufficiency model for the Czech Republic (RESTEP) was applied for the evaluation of possible adverse climate impacts uniformly reducing crop production by 5, 10, 20, and 30%. The situation was simulated for the whole country and four different agriculturally important regions. Biomass production modeling confirmed that for the whole country, the food self-sufficiency is secured up to 20% of yield decline for most crops, but even 5% yield decline of silage maize would lead to its shortage in animal feeding. On the other hand, regional results vary significantly. Regions Jižní Morava and Střední Čechy shown oversupply of feedstuff allowing them to cover the demands of cattle and pigs up to 20% or 30% decline of yield, respectively. The opposite model represents the Vysočina (VY) region which is not able to cover the demands from own sources even at the baseline scenario. The acreage extension of maize is not possible due to erosion risk restrictions at 25% of arable land at VY. The possible solution consists of extension acreage of alfalfa and clover or finding other plants sufficient for feeding as well for biogas facilities in regions rich in biomass energy consumers.

Exploitability of Renewable Resources in Administrative Buildings

2016 ◽  
Vol 824 ◽  
pp. 803-810
Author(s):  
Jan Šibal ◽  
Miloš Kalousek
Keyword(s):  
Czech Republic ◽  
Renewable Resources ◽  
Energy Flow ◽  
Waste Heat ◽  
Heat Pumps ◽  
Building Structures ◽  
Summer Period ◽  
Flow Measurements ◽  
The Czech Republic ◽  
Deep Earth

The evaluation of energy flow measurements in two very special buildings under the name of Open Gardens, located in Brno, resulted in confirming that the resources of renewable energy in the Czech Republic can be sufficiently utilized. This energy is derived from photovoltaic elements and earth heat pumps and, additionally, it gets also accumulated in building structures. The energy from renewable resources is utilized for heating, cooling, warm water preparation, for raising air temperature, and it also partially covers the demand for electricity in the building. During the summer period, if the solar gains are considerable, the buildings need being cooled. This is ensured by an earth heat pump enabling the storage of waste heat in deep earth bore holes, offering the advantage of recuperating the heat for heating the rooms during the winter months. At the same time all electricity produced in the building gets utilized, covering roughly 1/3 of the consumption. A plan of comprehensive measurements aiming at the optimization of the most demanding electric appliances has been conceived for this compound of buildings, in order to ensure the best possible utilization of the produced electricity.

scholarly journals Review of energy potential of the wood biomass of orchards and vineyards in the Czech Republic

2017 ◽  
Vol 63 (Special Issue) ◽  
pp. S1-S7 ◽  
Author(s):  
Burg Patrik ◽  
Mašán Vladimír ◽  
Dušek Martin ◽  
Zemánek Pavel ◽  
Rutkowski Kazimierz
Keyword(s):  
Czech Republic ◽  
Calorific Value ◽  
Fruit Trees ◽  
Biomass Energy ◽  
Individual Species ◽  
Agricultural Activity ◽  
Energy Potential ◽  
The Czech Republic ◽  
Fruit Species ◽  
Average Production

The most important sources of biomass energy are currently coming from agricultural activity. A sizeable portion in production areas is waste wood after the winter cut of orchards and vineyards, which cover areas exceeding 30,000 ha in the Czech Republic. The most important are species like apples, peaches, apricots, plums, sweet cherries, sour cherries and grapevines. Average production of wood mass for individual species of fruit trees and grapevines ranges from 1,540 kg/ha up to 6,762 kg/ha, i.e. 1.5 t/ha to 6.8 t/ha. The calorific value for these species ranges from 14.70 to 16.39 MJ/kg, with moisture between 6 and 8%. The results show that the total measured energy potential of the fruit species-cultivated areas is 1,469.7 TJ for the whole Czech Republic. 

The risk mapping for hospitals and the impact for the transport in the Zlín Region

2020 ◽  
Vol 18 (2) ◽  
pp. 131-140
Author(s):  
Katerina Vichova, MSc ◽  
Martin Hromada, MD
Keyword(s):  
Czech Republic ◽  
Electrical Energy ◽  
Significant Loss ◽  
Risk Mapping ◽  
Power Outage ◽  
The Czech Republic ◽  
Loss Of Life ◽  
Cascade Effect ◽  
The Impact ◽  
Regular Intake

The authors have witnessed an increase in crisis, resulting in significant loss of life and impact on the economy of a given country in recent years. In spite of the efforts and measures of each country’s government to reduce the impact of the crisis, this trend has not been avoided. This trend is observed at all levels—in municipalities, in the Czech Republic, but also the world. Extraordinary events or a crisis ordinarily have the so-called cascade effect that causes other extraordinary events. An example of this may be windstorm, resulting in a power outage. Significant power supply outages are observed in hospitals. Here, it is essential for acute care clients to have a regular intake of electrical energy to ensure their life functions. The introduction of this article refers to the authors, which describes the situation with the increasing number of emergencies. Second, there are described possible cascade effect of the crises. The third part of this article is focused on the flood risk affecting hospitals. The aim of this article is to carry out risk mapping for selected hospitals in the Czech Republic, specifically in the Zlín Region.

scholarly journals Progress in Achieving Sustainable Industrial Development – the Case of the Czech Republic and Poland

2020 ◽  
Vol 23 (4) ◽  
pp. 109-128
Author(s):  
Marta Ulbrych
Keyword(s):  
Sustainable Development ◽  
Czech Republic ◽  
United Nations ◽  
Renewable Resources ◽  
Industrial Development ◽  
The Czech Republic ◽  
2030 Agenda ◽  
The United Nations ◽  
Competitive Economy

The aim of this paper is to clarify the concept of sustainable industrial development and present the results of a study on the progress in achieving goals in this field adopted by the United Nations (UN) in 2015. The research covered the Czech and Polish economies in the period 2000–2018. Under the United Nations 2030 Agenda for Sustainable Development, the need to promote inclusive and sustainable industrialisation was identified. In the context of sustainable industrial development, it is emphasised that it should encourage a competitive economy, create employment, and protect the environment by efficiently utilising non‑renewable resources. To assess this phenomenon in the analysed economies, indicators identified by the UN under SDG9 were used.

Social variation in size at birth and preterm delivery in the Czech Republic and Sweden, 1989-91

1998 ◽  
Vol 12 (1) ◽  
pp. 7-24 ◽  
Author(s):  
Koupilova ◽  
Vagero ◽  
Leon ◽  
Pikhart ◽  
Prikazsky ◽  
...  
Keyword(s):  
Czech Republic ◽  
Preterm Delivery ◽  
The Czech Republic ◽  
Social Variation ◽  
Size At Birth

On Geropsychology in the Czech Republic

GeroPsych ◽  
2012 ◽  
Vol 25 (3) ◽  
pp. 161-166
Author(s):  
Hana Stepankova ◽  
Eva Jarolimova ◽  
Eva Dragomirecka ◽  
Irena Sobotkova ◽  
Lenka Sulova ◽  
...  
Keyword(s):  
Czech Republic ◽  
Clinical Practice ◽  
Old Age ◽  
Cognitive Rehabilitation ◽  
The Czech Republic ◽  
Rehabilitation Research

This work provides an overview of psychology of aging and old age in the Czech Republic. Historical roots as well as recent activities are listed including clinical practice, cognitive rehabilitation, research, and the teaching of geropsychology.

Contemporary Psychology in the Czech Republic

2000 ◽  
Vol 5 (1) ◽  
pp. 62-65 ◽  
Author(s):  
Jiří Hoskovec ◽  
Josef M. Brožek
Keyword(s):  
Czech Republic ◽  
The Czech Republic
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