Landtechnik最新文献_第8页

Emissionen aus der Tierhaltung messen und mindern – eine neue Datenplattform entsteht 测量并减少排放一个新的数据平台

Landtechnik Pub Date : 2017-04-30 DOI: 10.15150/LT.2017.3158

Eva Gallmann

引用次数: 0

Neue Pflanzenbausysteme entwickeln – welche innovativen Techniken werden benötigt? 开发新的作物系统——需要什么创新技术？

Landtechnik Pub Date : 2017-04-19 DOI: 10.15150/lt.2017.3156

J. Wegener, Lisa-Marie Urso, D. Hörsten, Till-Fabian Minßen, C. Gaus

{"title":"Neue Pflanzenbausysteme entwickeln – welche innovativen Techniken werden benötigt?","authors":"J. Wegener, Lisa-Marie Urso, D. Hörsten, Till-Fabian Minßen, C. Gaus","doi":"10.15150/lt.2017.3156","DOIUrl":"https://doi.org/10.15150/lt.2017.3156","url":null,"abstract":"The agricultural sector is faced with sweeping changes arising from various challenges of economic, ecological and social nature. With a persistent prolongation of the recent technical development path, these challenges cannot be mastered in future. Therefore, it is necessary to put the plant cultivation system as well as the for operational design necessary processes \u0000under close scrutiny to achieve the demanded sustainable intensification of agricultural production. Against this backdrop, this requirement profile for a plant production in the future is defined, the resultant challenges formulated and individual aspects of an alternative production system are considered how, with the help of modern techniques, new alternatives in plant \u0000production can be explored. The focus therefore is first of all to satisfy the basic necessities of cultivated plants together with superordinate requirements and restriction particularly with regard to structures. This will provide the basis for the required process technologies for a site-specific farm management. This is in contrast with previous practice, by which i. a. the \u0000technique development in uniform farm-management leads to the increasing size of fields.","PeriodicalId":35524,"journal":{"name":"Landtechnik","volume":"72 1","pages":"91-100"},"PeriodicalIF":0.0,"publicationDate":"2017-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45862024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Ammoniakabscheidung in neuartigen Biofiltern 新型生物滤池中的氨沉积

Landtechnik Pub Date : 2017-04-18 DOI: 10.15150/LT.2017.3155

J. Hahne, T. Pfeifer

引用次数: 2

Konservierung von Zuckerrüben zur Substratversorgung von Biogasanlagen – Verlauf der Silierung und Verluste bei 12 Sorten 广场广场的甜菜防腐处理想不到的后果，这些颜色的受害者包括12种

Landtechnik Pub Date : 2017-04-06 DOI: 10.15150/lt.2017.3154

S. Dirks, Dominik Schaiper, Wolfgang Büscher, P. Lammers

{"title":"Konservierung von Zuckerrüben zur Substratversorgung von Biogasanlagen – Verlauf der Silierung und Verluste bei 12 Sorten","authors":"S. Dirks, Dominik Schaiper, Wolfgang Büscher, P. Lammers","doi":"10.15150/lt.2017.3154","DOIUrl":"https://doi.org/10.15150/lt.2017.3154","url":null,"abstract":"Due to the criticism of the intensive cultivation of maize in Germany as well as the problem of more frequently occurring pests in crop rotation sugar beet has been used successfully as a substrate for biogas plants in recent years. Varieties with a high sugar yield proved to be particularly suitable. However, sugar beet has to be conserved and stored in order to integrate it into the process of biogas production throughout the entire year. Neither the success of conservation nor potential losses over the storage period have been documented so far. Batch tests have been used to investigate the course of conservation, watching the pH value and the losses while ensiling twelve different sugar beet varieties. The sugar beets were ensilaged as pulp under anaerobic conditions in a fourfold repetition for 90 days. In all variants, an almost parallel development of the pH value was observed. Although there were significant differences between the pH values of the different variants all pH values were sufficiently low to ensure safe conservation. Losses of methane forming potential after 90 days of storage fluctuated between approximately 10 and 20%. Alcoholic fermentation was identified as the reason for these losses. The results show that ensiling of different sugar beet varieties can be achieved quickly and safely. Also, alcoholic fermentation after acidification of the silage leads to considerable fluctuations in the level of losses, both the dry substance and the methane forming potential.","PeriodicalId":35524,"journal":{"name":"Landtechnik","volume":"72 1","pages":"61–75-61–75"},"PeriodicalIF":0.0,"publicationDate":"2017-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47338349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Untersuchungen zum Abbau von Gerüstsubstanzen im Biogasprozess mithilfe der In-Sacco-Batch-Methode 以查明原来的萨克胡方法来清除生物气体的黏液

Landtechnik Pub Date : 2017-04-04 DOI: 10.15150/LT.2017.3153

C. Demmig, F. Höppner, Dietmar Ramhold, M. Nelles

引用次数: 0

Pulverförmige Eisenpräparate zur Entschwefelung im Biogasprozess 用于沼气工艺脱硫的粉末状铁制剂

Landtechnik Pub Date : 2017-03-02 DOI: 10.15150/LT.2017.3152

F. Schäfer, Michael Zechendorf, M. Leiker, J. Pröter

{"title":"Pulverförmige Eisenpräparate zur Entschwefelung im Biogasprozess","authors":"F. Schäfer, Michael Zechendorf, M. Leiker, J. Pröter","doi":"10.15150/LT.2017.3152","DOIUrl":"https://doi.org/10.15150/LT.2017.3152","url":null,"abstract":"Strategien zur Entschwefelung sind essenziell fur jede Biogasanlage, da ein hoher Schwefelwasserstoffgehalt die Gasqualitat erheblich beeintrachtigt. Der Einsatz von Eisenpraparaten zur internen chemischen Entschwefelung bietet die Vorteile der substratbezogenen Dosierung sowie der Vermeidung von Prozessbeeintrachtigungen und Korrosion gasberuhrender Fermenterbauteile. Bislang wurden Eisenpraparate jedoch haufig nur anhand des Eisengehaltes eingesetzt, ohne die chemischen und physikalischen Eigenschaften der Praparate zu berucksichtigen. Um genau diesem Ansatz nachzugehen, wurden pulverformige Eisenpraparate unterschiedlicher chemischer Zusammensetzung und Korngrose als Zuschlagsstoffe in Biogasreaktoren im Labormasstab verglichen und die Wirkung in Abhangigkeit von Prozessparametern wie Hydrodynamik und Verweilzeit untersucht. Im Ergebnis der Forschung konnen nun zielgerichtete Aussagen dazu getroffen werden, welches Eisenpraparat in Abhangigkeit von den vorliegenden Prozessparametern am besten geeignet ist, um eine optimale Entschwefelung zu gewahrleisten. Der Vergleich zwischen reinen Eisen(III)-oxiden und Eisen(III)-hydroxid-Praparaten zeigte beispielsweise bei geringen Verweilzeiten von 8 Tagen einen deutlich besseren Entschwefelungseffekt der eisenhydroxidbasierten Produkte. Daruber hinaus wurden Effekte hinsichtlich der Prozessstabilisierung und des Methangehalts beobachtet.","PeriodicalId":35524,"journal":{"name":"Landtechnik","volume":"72 1","pages":"39-49"},"PeriodicalIF":0.0,"publicationDate":"2017-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49356747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Mittel gegen Schaumbildung bei der Zuckerrübenvergärung in Biogasanlagen 他们不惜用化学药水酿造调酒和药水

Landtechnik Pub Date : 2017-01-30 DOI: 10.15150/LT.2017.3149

L. Moeller, Andreas Zehnsdorf

引用次数: 1

Experimentelle und numerische Analyse der Luftströmung in Obst- und Gemüselagern 果蔬仓库气流的实验与数值分析

Landtechnik Pub Date : 2017-01-11 DOI: 10.15150/LT.2017.3148

Holger Scaar, Ulrike Praeger, K. Gottschalk, Reiner Jedermann, M. Geyer

引用次数: 3

Erweiterung der Flexibilität von Biogasanlagen – Substratmanagement, Fahrplansynthese und ökonomische Bewertung 促进生物调剂管理、驾驶合成和经济评估的灵活性

Landtechnik Pub Date : 2016-12-16 DOI: 10.15150/LT.2016.3146

Tino Barchmann, Eric Mauky, M. Dotzauer, Mathias Stur, Sören Weinrich, H. Jacobi, Jan Liebetrau, M. Nelles

{"title":"Erweiterung der Flexibilität von Biogasanlagen – Substratmanagement, Fahrplansynthese und ökonomische Bewertung","authors":"Tino Barchmann, Eric Mauky, M. Dotzauer, Mathias Stur, Sören Weinrich, H. Jacobi, Jan Liebetrau, M. Nelles","doi":"10.15150/LT.2016.3146","DOIUrl":"https://doi.org/10.15150/LT.2016.3146","url":null,"abstract":"Since the amendment of the German Renewable Energy Act (EEG) in 2012 as well as in the current version (EEG 2014) the parameters for the expansion of renewable energies aim for a stronger market integration of those. Thereby, biogas plants represent a promising option to produce demand-driven energy to compensate differences between energy demand and energy supply caused by irregular sources (e. g. wind and solar). The contribution focuses on the economic assessment of the flexible biogas production by specific feeding in comparison to continuous gas production against the background of a flexible conversion of biogas into electrical power. The required additional demand for gas storage capacity of a model biogas plant is determined by combinations of different feeding regimes and by three optimised power generation schedules. Subsequently, a cost-benefit analysis is conducted to assess the substrate management economically. The developed methodology is especially designed for existing plants and is used for assessing a multi-factorial substrate management as flexibility option. The results show that substrate management is increasingly appropriate to reduce the additional demand for gas storage especially for longer-term planning horizons (above 12 h) regarding schedule organisation. Moreover, the flexible operation allows generating higher marketing revenues on the European Power Exchange (EPEX Spot SE) at low additional costs.","PeriodicalId":35524,"journal":{"name":"Landtechnik","volume":"71 1","pages":"233-251"},"PeriodicalIF":0.0,"publicationDate":"2016-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66964764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Methanbildungspotenziale verschiedener Pflanzenarten aus Energiefruchtfolgen 从能量作物与甲烷铺路的不同植物中需要的

Landtechnik Pub Date : 2016-11-23 DOI: 10.15150/LT.2016.3142

C. Herrmann, Vincent Plogsties, Matthias Willms, F. Hengelhaupt, Veronika Eberl, J. Eckner, Christoph Strauss, C. Idler, M. Heiermann

引用次数: 8