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Publisher: Horizon Research Publishing   (Total: 54 journals)   [Sort by number of followers]

Showing 1 - 54 of 54 Journals sorted alphabetically
Advances in Diabetes and Metabolism     Open Access   (Followers: 23)
Advances in Economics and Business     Open Access   (Followers: 15)
Advances in Energy and Power     Open Access   (Followers: 16)
Advances in Pharmacology and Pharmacy     Open Access   (Followers: 6)
Advances in Signal Processing     Open Access   (Followers: 13)
Advances in Zoology and Botany     Open Access  
Bioengineering and Bioscience     Open Access   (Followers: 1)
Cancer and Oncology Research     Open Access   (Followers: 10)
Chemical and Materials Engineering     Open Access   (Followers: 23)
Civil Engineering and Architecture     Open Access   (Followers: 24)
Computational Research     Open Access   (Followers: 1)
Computer Science and Information Technology     Open Access   (Followers: 13)
Energy and Environmental Engineering     Open Access   (Followers: 7)
Environment and Ecology Research     Open Access   (Followers: 8)
Food Science and Technology     Open Access   (Followers: 3)
Immunology and Infectious Diseases     Open Access   (Followers: 9)
Intl. J. of Biochemistry and Biophysics     Open Access   (Followers: 1)
Intl. J. of Cardiovascular and Cerebrovascular Disease     Open Access   (Followers: 2)
Intl. J. of Neuroscience and Behavioral Science     Open Access   (Followers: 1)
Linguistics and Literature Studies     Open Access   (Followers: 4)
Manufacturing Science and Technology     Open Access   (Followers: 3)
Mathematics and Statistics     Open Access   (Followers: 5)
Nanoscience and Nanoengineering     Open Access   (Followers: 1)
Natural Resources and Conservation     Open Access   (Followers: 6)
Nursing and Health     Open Access   (Followers: 4)
Open J. of Dentistry and Oral Medicine     Open Access   (Followers: 1)
Sociology and Anthropology     Open Access   (Followers: 5)
Sport and Art     Open Access   (Followers: 1)
Universal J. of Accounting and Finance     Open Access   (Followers: 4)
Universal J. of Agricultural Research     Open Access   (Followers: 1)
Universal J. of Applied Mathematics     Open Access   (Followers: 5)
Universal J. of Applied Science     Open Access   (Followers: 2)
Universal J. of Biomedical Engineering     Open Access  
Universal J. of Chemistry     Open Access   (Followers: 1)
Universal J. of Clinical Medicine     Open Access  
Universal J. of Communications and Network     Open Access   (Followers: 1)
Universal J. of Computational Mathematics     Open Access   (Followers: 5)
Universal J. of Control and Automation     Open Access   (Followers: 4)
Universal J. of Educational Research     Open Access   (Followers: 1)
Universal J. of Electrical and Electronic Engineering     Open Access   (Followers: 6)
Universal J. of Engineering Science     Open Access   (Followers: 2)
Universal J. of Food and Nutrition Science     Open Access   (Followers: 5)
Universal J. of Geoscience     Open Access   (Followers: 4)
Universal J. of Industrial and Business Management     Open Access   (Followers: 1)
Universal J. of Management     Open Access   (Followers: 2)
Universal J. of Materials Science     Open Access   (Followers: 3)
Universal J. of Mechanical Engineering     Open Access   (Followers: 16)
Universal J. of Medical Science     Open Access  
Universal J. of Microbiology Research     Open Access  
Universal J. of Physics and Application     Open Access   (Followers: 2)
Universal J. of Plant Science     Open Access  
Universal J. of Psychology     Open Access   (Followers: 3)
Universal J. of Public Health     Open Access   (Followers: 2)
World J. of Computer Application and Technology     Open Access   (Followers: 4)
Journal Cover
Energy and Environmental Engineering
Number of Followers: 7  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2331-6306 - ISSN (Online) 2331-6330
Published by Horizon Research Publishing Homepage  [54 journals]
  • Road Testings and Evaluations for Waste Collection Vehicles Fueled with
           Biodiesel

    • Abstract: Publication date:  Jun 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  3  Nan-Min Wu   and Wen-Chin Chen   Biodiesel as a renewable energy has received considerable attention in recent years. It is reported to be used in its neat form or blended with petroleum-based diesel, and almost without any engine modification. Given the chance of increasing use in biodiesel, however, it is required to quantify its potential emission benefits and effect on power response, especially for those public-serviced diesel vehicles in daily operations. An on-road test for waste collection vehicles using various blending percentage of biodiesel and petroleum-based diesel was evaluated, especially for the particulate matter (PM10) emissions and the dynamometric power responses. Three waste collection vehicles were recruited and operated in their routine routes. The results indicated that the higher the biodiesel blending ratio, the more the power losses, up to 14% for B100 biodiesel. Heating value of the biodiesel blending is likely to be responsible for this drop of power. Near 68% PM10 reduction is attained for B100 in comparison with the petroleum-based diesel (B0) during testing periods. Both of the reductions in PM10 and power response differed from maker of diesel engine. Based on the testing results, though the biodiesel may abbreviate the environmental loading in PM10 emissions, it is suggested that an engine tune-up and adjustment for fuel supply system be arranged prior to use of biodiesel. Additionally, to make biodiesel a viable alternative fuel for the waste collection vehicles, a long-term assessment together with weather effect is suggested to secure both operational stability and safety on-road.
      PubDate: Jun 2017
       
  • Vector Control of Induction Machine with Estimates and Adaptation of Rotor
           Time Constant

    • Abstract: Publication date:  Jun 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  3  Fezazi Omar   Massoum Ahmed   and Mouilah Kheira   The variation of the rotor time constant exerts a dominant effect in the performance degradation of the orientation of the rotor flux method of induction machine and the online estimation of the time constant (Tr) is necessary in order to use it in the flux orientation and keeping the performance of the vector control. We presented our work vector control of induction machine by estimating and online adaptation of the rotor time constant of our machine only by measurement of voltage, current and speed, in line on the machine, to provide information to the orientation block on the variation of the parameter studied Tr.
      PubDate: Jun 2017
       
  • Proposed Derivation of the Integrated Capability Maturity Model as an
           Environmental Management Maturity Model

    • Abstract: Publication date:  Jun 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  3  Daniel Adrian Doss   Raymond Tesiero   Balakrishna Gokaraju   David McElreath   and Rebecca Goza   This article highlights the adaptability of the integrated Capability Maturity Model within the context of a environmental process maturity framework. Existing maturity models are applicable in a variety of quality contexts – quality management, quality control, and quality assurance. The reviewed literature is synthesized to propose a process improvement maturity model derivative to address environmental management processes.
      PubDate: Jun 2017
       
  • Achieving Nearly Zero Energy Multi-family Houses in Cyprus through Energy
           Refurbishments

    • Abstract: Publication date:  Feb 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  1  D. K. Serghides   S. D. Dimitriou   M. Michaelidou   M. Christofi   and M. Katafygiotou   Residential buildings account for the 63% of the total energy consumption of the building stock. The existing residential building stock exceeds the number of newly built dwellings in most developed countries. Therefore, the energy efficient renovation of the existing housing stock is imperative in order to reduce the building energy consumption. For this reason, European Union ranked the improvement of the buildings' energy performance as a high priority in its research agenda. Following Europe's 20:20:20 objective, this case study investigates refurbishment scenarios in order to achieve Nearly Zero Energy Buildings (NZEBs) in Cyprus. The research focuses on the Multi-family House typology, as classified in the framework of the Intelligent Energy Europe EPISCOPE project and specifically on retrofitting a Multi-family building constructed after 2006. A representative Multi-family building from the corresponding residential building typology in Cyprus was chosen and modelled using the software interface of the official Simplified Building Energy Model tool (iSBEM_Cy) for issuing Energy Performance Certificates (EPC). The study investigates whether it is possible for such a building to reach the Nearly Zero Energy Building standards with the implementation of the national energy performance requirements and identifies the lurking obstacles and challenges through building simulations.
      PubDate: Feb 2017
       
  • CFD Study of Thermal Comfort in Urban Area

    • Abstract: Publication date:  Feb 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  1  Fidaros Dimitris   Baxevanou Catherine   Tsagrasoulis Aris   Bartzanas Thomas   and Kittas Constantinos   The reduction of energy consumption for cooling should be addressed on a city level since the urban environment where the building operates increases its cooling needs and deteriorates the heat pumps operation. In the present work, a Computational Fluid Dynamics (CFD) model is used to study the improvement of microclimate conditions in an urban agglomeration of the city of Volos, through bioclimatic interventions. The Boussinesq approximation is used in order to take into account the thermal buoyancy while the Discrete Ordinate (DO) model is used for the radiation transport. The ground temperature is calculated by solving an energy balance model while the ground is also considered an infrared diffusive radiation emitter. The planted surfaces are considered finite thickness heat sinks and the roofs and building walls are also took as finite thickness isothermal walls and heat sources (the heat pumps and electrical device operation, lighting and, residences presence). Trees are regarded as porous volumes. The surfaces of water elements are considered isothermal heat sink walls. The local microclimate before and after the bioclimatic interventions is presented by comparing the temperature and wind speed distributions as well as the thermal comfort indices for a typical summer day.
      PubDate: Feb 2017
       
  • The Measure and Definition of Access to Energy Systems by Households and
           Social Effects of Lack of Modern Energy Access

    • Abstract: Publication date:  Feb 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  1  Gülbahar Bilgiç   Energy is fundamental to economic and social development; to reduce poverty and continue to grow. It supports people as they seek a whole range of development benefits: cleaner and safer homes, lives of greater dignity and less drudgery, to better livelihoods and better quality education and health services. At the same time, modern energy (such as natural gas, electricity) access is essential to provide, sanitation services, reliable and efficient lighting, heating, cooking, mechanical power, transportation and telecommunication. However, developing countries are unable to meet rising energy demands. Therefore, there are many problems in the rural areas far from city centers, which are caused by the lack of modern energy. This study highlights the importance of reaching modern energy, describes the minimum standards of it and examines the importance of this energy for households. Lack of modern energy access, a general explanation has been given about the social problems the household has experienced.
      PubDate: Feb 2017
       
  • Environmental Monitoring of 222Rn Radiations in "Bare Mode" in Moradabad
           City of Western Uttar Pradesh, India

    • Abstract: Publication date:  Dec 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  4  Nikhil Rastogi   and Indu Singh   Evaluation of indoor and outdoor radon and its progenies concentrations and natural background radiation levels of Moradabad city and in the nearby villages were measured by using Solid-state nuclear track detectors (LR-115 type II) in a bare mode. The measurements were carried out in 40 different areas of Moradabad and its nearby villages. Indoor radon concentration was found to vary with building material, ventilation condition and mode of constructions of houses. The indoor radon concentrations were found to vary from 20.3Bq/m3 to 67.2Bq/m3 with an average value of 40.8Bq/m3 and the outdoor radon concentration were found to vary 19.3Bqm-3 to 62.2Bqm-3 with average value 36.6Bq/m3. The mean indoor and outdoor radon equilibrium equivalent concentrations were found 16.40Bq/m3 and 14.93Bq/m3 respectively. This value is lower than the ICRP recommended values of 200Bq/m3 and thus are within safe limits. The outdoor radon concentration is usually low and less than average indoor levels. It is also found that, in general, the radon level in ground floors is higher than that in upper ones in all areas.
      PubDate: Dec 2017
       
  • Biohydrogen Production from Sewage Sludge by Dark Fermentation: The
           Effects of Adding Inoculum and Heat Pretreatment

    • Abstract: Publication date:  Apr 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  2  Ilknur Senturk   and Hanife Buyukgungor   The main requirement for efficient H2 production is the availability of efficient microbial consortia in which H2-utilizing and non-H2-producing bacteria are suppressed. This study evaluates the H2 production potentials from sewage sludge with and without pretreated anaerobic culture used as inoculum. Three different anaerobic cultures (mixed anaerobic sludge from CSTR tank reactor, fermented manure, and heat-treated fermented manure) were used as inoculum. Due to hydrolysis during heat treatment, organic matter concentration increased during fermentation. Compared to other operating conditions, heat-treated fermented manure as inoculum and sewage sludge as the substrate mixture had the highest hydrogen production. The results showed that heat pretreatment of inoculum should increase H2 production potential.
      PubDate: Apr 2017
       
  • Design Models for Anaerobic Batch Digesters Producing Biogas from
           Municipal Solid Waste

    • Abstract: Publication date:  Apr 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  2  Asinyetogha Hilkiah Igoni   and Ibiye Sepiribo Kingnana Harry   Models for the design of anaerobic batch digesters producing biogas from municipal solid waste (MSW) in Port Harcourt metropolis, Nigeria have been formulated. Experimental and field data were used to determine relevant design parameters for the batch digesters, especially the bio-kinetic behavior of MSW. The research data were analyzed using material balance analysis. The anaerobic digester was then designed and simulated for fractional conversion values of 0.2 ≤ α ≤ 0.8 and percentage total solids (PTS) concentration of 10-30%, using Microsoft Visual Basic Version 6.0 computer program. The simulation results were interpreted with Microsoft Chart Editor. The evaluation of research results showed that an empirical optimum PTS concentration of 20% was best suited for the batch digester processing the MSW for biogas generation. At this level of PTS concentration, the MSW digestion was most effective in terms of digester sizing, time of digestion, volume of biogas produced and overall cost of the digester, for the same level of percent stabilization.
      PubDate: Apr 2017
       
  • Energy Consumption and Energy Saving Measures in Poultry

    • Abstract: Publication date:  Apr 2017
      Source:Energy and Environmental Engineering  Volume  5  Number  2  Catherine Baxevanou   Dimitrios Fidaros   Thomas Bartzanas   and Constantinos Kittas   Livestock buildings are energy consumers and aggravate the environment directly through their emissions and indirectly through the natural sources consumption. The contribution of energy consumption in the total production cost increases as the mechanization level and the conventional energy cost arises. In the present work the total energy consumption in poultries and its distribution according to the type of energy and the type of application is approached in two ways: a) The operational rating through the process of energy audit and, b) The asset rating where the thermal needs of the chambers are calculated using a source analytical explicit model in hourly time step. In terms of final energy consumption the energy per unit area ranges between 30 and 130 kWh/m2 and in terms of primary energy between 70 and 180 kWh/m2, depended on the chamber insulation, location and automation level. The insulation can contribute mostly in mountainous area and the automation level in lowland units. An insulation thickness of 4 to 5cm is recommended for lowland farms and 6cm for mountainous farms. Further insulation cannot offer benefit since ventilation heat losses represent significant percentage of the total heat losses and can be reduced with automatic ventilation control.
      PubDate: Apr 2017
       
 
 
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