Despite the unstoppable global drive towards electric mobility, electrification of sub-Saharan Africa’s ubiquitous informal multi-passenger minibus taxis raises substantial concerns. This is due to a constrained electricity system, both in terms generation capacity and distribution networks. Without careful planning mitigation, additional load charging hundreds thousands during peak demand times could prove catastrophic. paper assesses impact 202 these Johannesburg, South Africa. The...

Heat pumps in combination with a photovoltaic system are very promising option for the transformation of energy system. By using such coupling electricity and heat sectors, buildings can be heated sustainably low greenhouse gas emissions. This paper reveals method dimensioning suitable pump photovoltaics (PV) residential order to achieve high level (photovoltaic) PV self-consumption. is accomplished by utilizing thermal storage (TES) shifting operation times power production an intelligent...

In the course of a more intensive energy generation from regenerative sources, an increased number storages is required. addition to widespread means storing electric energy, thermally can contribute significantly. However, limited research exists on behaviour thermal (TES) in practical operation. While physical processes are well known, it nevertheless often not possible adequately evaluate its performance with respect quality stratification inside tank, which crucial for thermodynamic...

This paper is intended to update the overview of different correlations for friction factor and heat transfer Stirling engine regenerators given by Oscillating-Flow Regenerator Test Rig data. For that purpose data was recalculated using general applicable set equations Reynolds number, factor, pressure drop, Nusselt number area. Based on these definitions, can be shown in one plot flow giving a good impression their characteristics deviations among them, which are discussed body this paper.

An Otto engine CHP‐unit running on biogas has been under investigation for more than two years. Within this time data regarding temperatures, energy flows, composition, emissions etc. were collected, and paper presents some of the results. In detail, electric thermal output are discussed one full year. From these monthly availability unit can be calculated, which ranges from 84.0 to 96.4%. addition, utilization heat produced by during year is displayed. It was found that 18.2% needed heating...

The paper illustrates the status quo of a research project for development control system enabling CHP units demand-oriented electricity production by an intelligent management heat storage tank. Thereby focus is twofold. One compensation fluctuating power renewable energies solar and wind. Secondly, reduction load on grid intended better match local demand production. In detail, general strategy outlined, method utilized forecasting illustrated as well correlation temperature distribution...

Heat pumps are a vital element for reaching the greenhouse gas (GHG) reduction targets in heating sector, but their system integration requires smart control approaches. In this paper, we first offer comprehensive literature review and definition of term described context. Additionally, present approach, which consists an optimal scheduling module coupled with detailed energy simulation module. The aim integrated two-part approach is to improve performance equipped heat pump, while...

A Capstone C30 MicroTurbine has been installed, instrumented, and utilized in a junior-level laboratory course at Valparaiso University. The experiment enables University to educate students interested power generation turbine technology. first goal of this is for explore gas generator witness the discrepancies between idealized models real thermodynamic systems. Secondly, measure analyze data determine where losses occur turbine. third educational recognize true costs associated with...

In the present work, we focus on long-term and permanent measurements of approximately two years a 192 kWel Gas Otto CHP (combined heat power) unit at full-scale research biogas plant. detail influence 600 h 1800 maintenance intervals electrical efficiency consumption exhaust gas emissions such as NOx CO have been studied under real life conditions. Lubricating oil quality analyses throughout operation time are presented to show destructive changes in property its condition based...

The increasing share of renewable energy with volatile production results in higher variability prices for electrical energy. Optimized operating schedules, e.g., industrial units, can yield a considerable reduction costs by shifting processes high power consumption to times low prices. We present distributed control architecture virtual plants (VPPs) where VPP participants benefit from flexible adaptation schedules price forecasts while maintaining their schedule. An aggregator trades at...

<p>Despite the unstoppable global drive towards electric mobility, seemingly inevitable electrification of sub-Saharan Africa's main mode transportation, so-called ``paratransit'', raises substantial concerns due to an already struggling infrastructure and supply network. Without careful planning mitigation, additional load charging hundreds thousands minibus taxis during peak demand times could prove catastrophic if sufficient is not done. This paper assesses grid impact 202 in...

The majority of people in sub-Saharan Africa (SSA) rely on so-called "paratransit" for their mobility needs. term refers to a large informal transport sector that runs independent government, which 83% comprises minibus taxis (MBT). MBT technology is often old and contribute significantly climate change with high carbon dioxide (CO2) emissions. Issues related sustainability are becoming more important world-wide hardly any attention given MBTs. Converting the MBTs from internal combustion...

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFlow Measurement INSTRUMENTATION.B. W. ThomasCite this: Ind. Eng. Chem. 1955, 47, 2, 75A–78APublication Date (Print):February 1, 1955Publication History Published online6 October 2008Published inissue 1 February 1955https://doi.org/10.1021/ie50542a007Request reuse permissions Article Views16Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML)...