This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
Exhaust particle size distributions measured by ELPI (color map) and particle concentration measured by CPC (white line) during individual engine braking conditions (speed change from 32 km/h to 0 km/h). The exhaust sample was taken from the exhaust manifold. The exhaust sample was taken from the exhaust manifold.
GBS, GHY, TMS, MS TSS and GR refer to different types of aggregates in the mortar. They tested a variety of asphalt samples from Japan dating back to 1960; a number of concrete samples from across the world were also tested, and a 120-year-old concrete sample was used as a reference. CT scans showing cracks in damaged concrete.
A new report released by the Air Quality Expert Group ( AQEG ) in the UK recommends as an immediate priority that non-exhaust emissions (NEE) are recognized as a source of ambient concentrations of airborne PM, even for vehicles with zero exhaust emissions of particles. —“Non-Exhaust Emissions from Road Traffic”.
Opcon, in collaboration with Wallenius Marine, recently completed the first reference installation of its Waste Heat Recovery technology for ocean-going vessels in a project supported by the Swedish Energy Agency. The first reference installation features both Opcon Powerbox ORC and Opcon Powerbox WST. The MV Figaro. Click to enlarge.
Approximately one-quarter of the orders have been for EGR (Exhaust Gas Recirculation) systems, with SCR (Selective Catalytic Reduction) systems accounting for the remainder. The milestone was passed in early January 2021 and is built upon references from the company’s portfolio of ME-B, ME-C and MC-C fuel-oil engines.
Stena Line is seeking novel, cost-effective approaches to recover energy from exhaust gases from ship engines and to transform it into a more useful energy form (e.g., The company is also interested in efficient turbine systems that generate electricity from the kinetic energy from the massflow and velocity of the exhaust gases.
There are two basic exhaust emissions and fuel economy tests described in J1711. Single-roll, electric dynamometer test procedures are specified to minimize the test-to-test variations inherent in track testing and to conform with standard industry practice for exhaust emissions and fuel economy measurements. Earlier post.)
The other half, who lived some distance away, made up the reference group. The proportion who felt exhausted once or twice a week declined from 49 to 39 percent—that is, down to the same proportion as in the reference group. There was also a clear reduction of perceived health effects.
Taking IRENA’s REmap scenario as a reference, renewable hydrogen could deliver 5% of total final energy demand in 2050. There is no immediate concern for copper resources, but the average ore grade is declining as higher grade deposits become exhausted. According to the IEA, less than 0.1%
Although direct air capture of carbon dioxide (DAC) generally refers to the capture of CO 2 from ambient air, this FOA also considers the removal of CO 2 from partially concentrated air (e.g., building HVAC exhaust) and from natural fluids (e.g., DE-FOA-0002481 ).
Southwest Research Institute (SwRI) announced preliminary test results of its Dedicated-Exhaust Gas Recirculation (D-EGR) demonstration vehicle ( earlier post ) at the SAE 2014 World Congress in Detroit. With D-EGR, one or more cylinders have their exhaust connected directly to the intake system. Overall, the engine offered a 13.1%
The engines, which are capable of operation on green methanol and conventional fuel-oil, represent the first order for the G80 bore size; they will also feature MAN Energy Solutions’ proprietary EGR (Exhaust Gas Recirculation) systems.
As of July 2018, all BMW gasoline and plug-in hybrid models available in Germany will be fitted as standard with a gasoline particulate filter (GPF) and thus will comply with the exhaust standard Euro 6d-TEMP. In addition, another 39 diesel models will be going on the market with Euro 6d-TEMP rating.
Due to the lower exhaust enthalpy of lower temperature engines using PPCI, it is difficult to produce intake boost with acceptable boost system parasitis. A practical powertrain system with robust PPCI combustion is needed, including injection, valvetrain, boost, and exhaust subsystems. —Sellnau et al. 2014-01-1300. respectively.
On the other hand, however, the lower exhaust gas temperatures result in a lack of energy for their propulsion on the exhaust side. Their approach was to keep the level of raw emissions low by means of extremely lean and therefore colder combustion, making it possible to dispense with an exhaust aftertreatment system.
The presence of oxygen in the fuel has the potential to lower the exhaust particle number concentration in diesel engines, they concluded. Limited information is available in the literature about the exhaust soot particle number size distribution under these operation conditions for diesel and RME fuels. Labecki et al. Labecki et al.
Conventional diesel buses will also be used on the route to serve as reference vehicles in the comparison of the innovative drive concepts. The conventional hybrid offers up to 37% fuel savings compared to a diesel version and 40-50% lower exhaust emissions.
As part of the Horizon 2020 research project CARES (City Air Remote Emission Sensing), an international research consortium is working on new contactless exhaust measurement methods that will enable municipalities to take emission-reducing measures. The aim is to detect the exhaust class of each individual vehicle using these measurements.
Under this same operating condition with stoichiometric engine exhaust (and no reforming), they could only sustain stable combustion with EGR under 25%. D-EGR uses fuel-rich combustion in one cylinder and recirculates its exhaust to the intake system, generating brake thermal efficiency as high as 42.5% —Jim Szybist, ORNL.
Faurecia, a leading global automotive supplier, has signed an agreement to acquire EMCON Technologies (originally Arvin Industries), a leader in the global exhaust emission control technology industry. Following the deal, PSA Peugeot Citroën will remain Faurecia’s reference shareholder and hold 57.4% billion (US$3.5 billion (US$3.5
Exhaust, Evap, and OBD testing 2. Exhaust and Evap testing + OBD attestation. 2 Exhaust and Evap refers to all exhaust emission testing and all evaporative emission and refueling emission testing required for new vehicle certification, unless otherwise excepted. current calendar year - 1. Certification application.
This means that the turbocharger and the exhaust manifold are now positioned at the rear, on the side of the firewall when viewed from behind. Furthermore, the new arrangement allows much improved air ducting with shorter distances and fewer diversions - both on the intake and exhaust side. Larger exhaust valves. Turbocharger.
The term watered-out refers to a well that has begun producing large amounts of water—often occurring with waterflooding for enhanced oil recovery—thereby making oil production unprofitable. The pores in these types of rock range in diameter from tens of nanometers to several micrometers.
Because fuel cells are not intrinsically capable of storing energy, when fuel supply is exhausted the energy output is interrupted. 14 times longer than reference porous Pt anode fuel cells when the hydrogen fuel supply is turned off. For these systems, the fuel supply may be discontinuous unlike in stationary applications.
Renault Trucks meets this requirement by combining different solutions, such as exhaust gas recirculation during engine start-up phases, the use of controlled valves at the intake and the exhaust as well as specific combustion strategies. The 5 and 8 L Euro VI engines are fitted with an EGR system.
This function is crucial in current TWC, in which the oxygen partial pressure in the exhaust must be regulated to be near the ideal air-to-fule ration (A/F = 14.6). Most importantly, however, is the TWC’s ability to buffer variations in the air-to-fuel (A/F) ratio during fuel-rich and fuel-lean exhausts. —Machida et al.
They refer to this as adiabatic steam reforming because external heat sources, such as a combustor or an electric-resistance heater, are not necessary to support the reaction. On one side of the wall is the hot exhaust that is expelled as a byproduct of the reaction inside the fuel cell.
It has been already reported that by changing the fuel from conventional EN590 diesel to HVO decreases exhaust emissions. To keep the NO x emission below the level of emission at reference conditions, a small EGR percentage and advanced IVC were used. 68% at LS conditions depending on the load. NO x emission was decreased 30?50%
This product is referred to as hydrous ethanol—approximately 93% ethanol and 7% water. Performance parameters evaluated were torque, brake mean effective pressure (BMEP), power, specific fuel consumption (SFC), thermal efficiency, exhaust gas temperature and volumetric efficiency. Costa, José R.
Since 2010, all Sprinters in the US have been powered by BlueTEC diesel engines, marking the first use of BlueTEC technology, with its selective catalytic reduction (SCR) exhaust aftertreatment system, in the commercial van market here. The two overhead camshafts actuate 16 intake and exhaust valves.
Comparison of engine indicated efficiency with three different combustion approaches (PFI SI, ECDI SI and HPDI) for H2 with a diesel reference under full load operation. The models indicate NO x emissions can be managed with EGR and commercially available Urea-SCR NO x exhaust aftertreatment technology. Source: Westport/AVL.
The team examined blends of 5% and 10% POMDME in diesel in a single-cylinder heavy-duty diesel engine to gain an overview of the blend’s impact on engine performance and exhaust emissions. The team compared the reference diesel fuel with two blends of 90% diesel - 10% POMDME by volume and 95% diesel-5% POMDME by volume. Iannuzzi et al.
The researchers suggested that their results can be used to aid in selecting at what stage lignocellulose should be chemically modified so as to produce a viable biofuel molecule with optimal combustion characteristics and exhaust gas emissions. Their paper is published in the ACS journal Energy & Fuels. Injection timing was kept fixed at 7.5
Azimuth thrusters have the propeller screws in pods that can be rotated to any horizontal angle (azimuth) on the reference plane; Damen is a world leader in ASDs. Due to the clean combustion concept, compliance with IMO Tier 3 emission legislation will be ensured without the need of additional exhaust gas after treatment.
Theoretically, cars operating on higher ethanol blends than the design point could emit greater concentrations of pollutants in exhaust gas. In the cylinder where combustion takes place, the fuel evaporates before it is burned, and this evaporation helps cool off the air/fuel mixture and exhaust gas.
In this model, the majority of the biogas is allocated to the production of renewable power using a device such as a gas-fired turbine with an exhaust heat recovery system. Heat recovered from the exhaust of the combustion gases produced by power generation sustains the mesophilic thermal requirements of the anaerobic digesters.
pre- and post- decarbonization of the electric power sector—to which he referred as pre-CCS and post-CCS, respectively (although decarbonization was not necessarily via CCS—carbon capture and storage).) Direct capture of CO 2 from air, or from an exhaust stream vented to the atmosphere, represents negative emissions.
The new system, which recovers energy from the hot exhaust gas, also reduces costs by around 20%. Because the amount of scrap that is added is relatively low compared to the existing liquid steel, this process is referred to as flat-bath operation. The Tyasa mill is scheduled to be completed by mid-2013. Click to enlarge.
HVO based fuels can be used without affecting fuel logistics, engine and exhaust after-treatments. They used three experimental fuels with varying HVOs fraction in a HCK base along with a fourth commercial fuel as reference for baseline tests. —Napolitano et al. and 1.46% ± 0.25.
With the gasoline tank reduced in size to 9 liters (for a Golf Variant TGI, that corresponds to a range of approximately 200 kilometers) and now serving merely as a backup, this is referred to as a quasi-monovalent drive concept. The reason for this is the low percentage of carbon in natural gas.
Many components of the MDB engines are used in a modular way, such as the exhaust system components and the injection system, turbocharging systems, and forced induction cooling within the intake manifold module. A complex exhaust gas recirculation system is also used. Close-coupled exhaust gas aftertreatment in the EA288 diesel.
The “lite” of the new Solaris Urbino 12 LE lite hybrid refers to its low fuel consumption. The unit, which fulfills the restrictive EURO 6 exhaust emission standard, delivers 210 HP and 832 N·m torque. The company will also showcase facelifted version of the Solaris Urbino 12 electric and the Solaris Urbino 12 hybrid.
The durable and relatively easy-to-produce material has numerous applications, including recycling waste heat from industrial refineries or using auto exhaust heat to help recharge the battery in an electric car. The rare-earth elements modified the lattice, said Levin, referring to the crystal structure of the thermoelectric materials.
The A 200 CDI has multiple exhaust gas recirculation to reduce nitrogen oxide emissions. To reduce NO x emissions even further, the OM 651 engine of the A 220 CDI is equipped with multiple exhaust gas. In addition to high-pressure EGR, where hot exhaust. use of the exhaust gas energy, producing a high output and.
We organize all of the trending information in your field so you don't have to. Join 5,000+ users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
Let's personalize your content