Due to the persistently high emissions of nitrogen oxides, the Dutch government has launched a billion-euro funding program to reduce nitrogen oxides as part of a climate package and has imposed a speed limit of 100 km/h on freeways as a first measure. A large part of the €5.1 billion budget is earmarked for agriculture and other environmental protection measures. Within the transport sector, € 79 million is to be invested in inland shipping by 2030.
As port areas around the world are known as “emission hot spots”, they are a particular focus of attention. Due to the high volume of logistics and the compressed operation of ships, cranes, generators and trucks with combustion engines, the limit values for nitrogen oxide and particulate emissions are regularly exceeded and are very high compared to other areas.
An HJS Stage V Emission Upgrade specifically tailored to the machine package enables the best compromise between ecological and economic requirements. With the “First Fit” approach from HJS, machine-specific requirements are met and high levels of investment in fleet modernization are significantly reduced.
Cranes as a special challenge
“As cranes often have a high proportion of low loads, they pose a particular challenge for exhaust gas purification,” explains Thomas Vieth, who is responsible for Customer Upgrade Solutions at HJS. HJS masters this requirement with the expertise gained from 40 years of experience in the product development of exhaust technology and emission reduction. A patented thermal management technology integrated into the exhaust gas aftertreatment system supports compliance with emission requirements in real operation. With this technology, the nitrogen oxide reduction system (SCR, see illustration) can be operated in an optimum functional range even at low loads and low exhaust gas temperatures. “Upgrading the entire equipment therefore contributes to an effective improvement in air quality in our cities and ports as quickly as possible and reduces investments to a minimum,” continues Thomas Vieth.
The various vehicles in which HJS exhaust aftertreatment systems are used (original equipment, retrofit programs) include cranes, mobile and stationary machines, vans, public transport buses and municipal vehicles. An extensive modular system enables system application with little technical and time expenditure. The extensive product portfolio meets the highest quality standards and thus contributes to the sustainability of the vehicle and machine fleet. HJS is supported in retrofitting by local partners and country representatives on site.