Questions

LPG
Liquefied petroleum gas is an inexpensive and clean fuel that dovetails perfectly into the technology used in modern vehicles. It is a valueble alternative for petrol or diesel. Practically every existing petrol engine is suitable for liquefied petroleum gas. Second-hand vehicles can also run trouble-free on liquefied petroleum gas. To prepare your vehicle for running on liquefied petroleum gas, a liquefied petroleum gas system has to be installed. Vialle is the market leader in the development and supply of liquefied petroleum gas systems. The company has a network of profesional art skills installers. As a result, your vehicle will run as reliably on liquefied petroleum gas as it does on petrol.

How LPG works
The LPi system works similarly to a petrol-injection system: liquefied fuel is pumped around in the LPi system and offered to the injectors. The system comprises a LPG fuel tank (1) with an integrated pump. The pump increases the pressure in the fuel system and pumps liquefied LPG to the pressure regulator unit. The pressure regulator unit (2) regulates the pressure in the system and has a valve that is opened when the switch from petrol to LPG takes place. The fuel reaches the injectors (3) that are mounted in the inlet manifold. The surplus LPG is returned to the LPG tank along the return lines and pressure regulator. The LPG injectors are driven by the LPG regulation unit (LPE). The signal for the petrol injectors that comes from the original ECU is employed here and translated for the LPG injector. Consequently, all the original signals for the engine management and diagnosis features remain intact.

Tank positioning
There are various different options for the installation of the LPG fuel tank. The majority of vehicles have the tank installed in place of the spare tyre. In many cases, you can retain the original trunkcover plate and do not sacrifice any boot space. You can also opt for a maximum range by installing the biggest possible tank.
Cylindrical tank against the rearseat. Gross contents up to 130 litres for a maximum range are available. Cylindrical tank along the length of the vehicle. Positioned on the left-hand side or right-hand side of the vehicle. Gross contents up to 130 litres for a maximum range. Sunken installation. Gross contents up to 88 litres. Is installed in the place that usually houses the spare tyre. No boot space is sacrificed. Installation underneath. Gross contents up to 83 litres.

Environment & Savings (source: WLPGA)
LPG is the most widely used alternative fuel for road transport. Autogas powers more than 10 million vehicles in over 54 countries worldwide, and offers an immediate, concrete way to improve air quality, especially in urban areas. In terms of air-borne emissions of the principal regulated noxious gases, autogas is among the lowest emitters of all automotive fuels available, with scientific testing suggesting that autogas produces 50 per cent less carbon monoxide, 40 per cent less hydrocarbons, 35 per cent less nitrogen oxides and 50 per cent less ozone-forming substances compared to gasoline. This has both environmental and health benefits. Autogas can also play an important role in mitigating climate change. For example, autogas can produce on average 20 per cent less CO2 equivalent to gasoline when total emissions from well to wheel are taken into consideration. When tailpipe emission levels alone are tested, autogas produces up to 15 per cent fewer emissions. In France, recent technology innovation has led to a hybrid electric-autogas vehicle that emits 92 g/km of CO2, and developers expect this level to decrease to below 90 g/km which would represent the lowest level available on the market. In addition, autogas is mitigating airborne emissions not only in many of the world’s most polluted cities, including Beijing, Mumbai and Bangalore but also in European cities, including Vienna, Warsaw and Istanbul.

Future challenges:
Despite significant domestic use in several economies, LPG remains little known by key stakeholders and policy-makers. As a hydrocarbon, LPG is often disregarded as it does not fit into the renewables category, however, LPG is cleaner than other fossil fuels and is a suitable fuel to back-up intermittent renewable energy sources such as solar and wind. LPG can help the shift towards a “low-carbon” economy because LPG features significantly lower GHG emissions than other commercially available fossil fuels such as coal, light and heavy petroleum fuels and natural gas in some applications. Moreover, LPG exhibits significantly lower GHG emissions over traditional fuels such as biogas, kerosene, charcoal, dung cake and wood used for cooking and home heating by billions of people in the developing world. Thus, there is a good case for government support to the LPG sector in developing countries, based particularly on the positive contribution the fuel can make to more sustainable energy use. Government policies and measures can strongly influence LPG market development and active government support can catalyse LPG market take-off and establish a virtuous circle of growing market potential, increased investment and expanded availability. In Brazil, penetration of LPG services was aided substantially by government programmes and subsidies over three decades, during which LPG subsidies helped to keep energy prices stable. The results of the programme were dramatic, allowing LPG use to rise from 18 per cent nationwide in 1960 to 98 per cent of households in 2004. The penetration at 93 per cent of households in rural areas is particularly impressive given the difficulty of reaching remote low-density populations. Since market deregulation in 2001, the government assists low-income families to purchase LPG through a voucher system. The programme benefits are available only to families with a monthly income per capita that is no more than half the minimumwage income.