To address the growing problem of pollution and global warming, it is necessary to steer development innovative technologies towards systems with minimal carbon dioxide production. Thermal storage plays a crucial role in solar as bridges gap between resource availability energy demand, thereby enhancing economic viability system ensuring continuity during periods usage. methods consist sensible heat storage, which involves storing using temperature differences; latent utilizes phase change...

The object of this study is to investigate the effect ethanol–gasoline blends on CO and HC cold start emissions from a four- stroke motorcycle. Nowadays, due catalyst improvements efficient electronic mixture control, significant part total during trip takes place phase. employ alternative fuels could be one means lessen cold-start two-wheeler engines: ethanol known as potential alcohol fuel for spark ignition engines, which can blended with gasoline increase oxygen content then decrease...

The stringent international emission legislations and increasing demands for lesser fuel consumption air pollutant emissions in urban environment necessitate substantial effective plans to improve combustion efficiency of anthropogenic activities. For this reason, all the industrialized countries are energetically developing alternative sources order reduce harmful decrease necessity fossil fuel. In context, ethanol can be used as an or additive gasoline owing many advantages, above...

This article presents a methodology for the environmental zoning of territory that was adopted Campania (Italy), region characterized by high level spotted air contamination. The focus this study consists in estimation total emissions and appraisal relevant quality state Region main pollutants: CO, VOC, NO X , PM 10 . In study, atmospheric emission inventory executed using bottom‐up approach, focusing at regional instead national then including local parameters; amounts pollutants emitted...

Atmospheric emission inventories are a primary and essential cognitive element for the air quality management becoming more necessary to set up remediation programs in areas characterized by pollution problems. In order estimate Region Campania (Italy) total emissions of main pollutants (CO, VOC, NO x PM 10 ), this study bottom-up methodology was employed, focusing at regional level instead national then including local specific parameters. The amounts emitted from various sources region...

A new model of power-assisted bicycle has been designed, set up and tested. The main innovative solutions for the pedelec prototype are described in present paper: electric motor position; mechanical transmission; low cost measurement system driving torque; special test rig. Differently from a common approach, which is located on one three hubs bicycle, idea consists an electrical central position that, by means bevel gear, transmits torque hub. other solution represented motion transmission...

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTCorrelation of Surface and Bulk Order in Low Energy PolymersJ. Lüning, J. Stöhr, K. Y. Song, C. Hawker, P. Iodice, V. Nguyen, D. YoonView Author Information Stanford Synchrotron Radiation Laboratory, MS 69, PO Box 4349, Stanford, California 94309; IBM Research Division, Almaden Center, 650 Harry Road, San Jose, 95120; ELORET Inc., 690 W. Fremont, Sunnyvale, 94087; School Chemistry, Seoul National University,...

Due to increasing worldwide trade, transportations of goods through seaports have been gradually growing in the past years; harbours are main centres economic activities, with unavoidable consequences on air quality degradation and human health many urbanized ports. This study provides a methodology assess impact pollutant emission from marine engines ambient coastal areas. The environmental pollution sea traffic was evaluated by assessing production atmospheric dispersion exhaust emissions...

The purpose of this paper is the assessment environmental air pollution in a very densely inhabited area southern Italy, which characterised by serious general contamination. Because may have an impact on human health, was identified 1998 as National Interest Priority Site and comprises large part agricultural lands belonging to over 60 municipalities between Naples Caserta provinces. This study characterises affecting estimating total annual emissions major pollutants (CO, NO X , VOC, PM...

This paper provides fundamental principles to study the thermodynamic performance of a new screw expander–based solar thermal electricity plant. While steam turbines are generally used in direct generation systems without admitting fluid two-phase conditions, expanders, as volumetric machines, can convert mechanical energy also by expanding liquid-steam mixtures decline efficiency. In effect, not competitive expanders when net power is smaller than 2 MW and for low-grade heat sources. The...

Abstract The use of ammonia as a fuel still poses series challenges to be overcome, both in terms optimization and energy efficiency the production process, with regard its combustion internal engines. two main obstacles along this way are undoubtedly high ignition temperature low propagation speed flame front due slow chemical kinetics process. All these issues lead need blended mode other more “easy burning” fuels. This is even felt cases non-stationary combustion, such for alternative...

The paper describes a performance and environmental analysis of an innovative e-bike by means dynamic model equipped with suitable control for the management assisted drive e-bike. main advantage this approach consists opportunity to simulate different tracks, e-bikes characterized parameters (total mass, wheels moment inertia) strategies. authors have also conducted studied vehicle, particularly comparing thermal moped, in terms impact.