Mercedes-Benz
Mercedes-Benz Citaro NEBUS
Mercedes-Benz O.405NH CNG (requires fitting
Transcom NGVS developed by Advanced Engine Components Ltd., Osbourne Park , WA . to meet Euro-4).
Mercedes-Benz O.500LE
(Euro V and better)
- bus cost: about S$468,700 (CNG premium: about S$59,000)
Volvo
All Volvo CNG buses are listed as "Euro 3" emission standard in their specifications but the 2 Volvo B10BLE-CNG demonstrators are already Euro-4 and granted ARF exemptions by LTA for having met stringent emission standards.
Volvo Super Olympian is listed as "Euro 3" emission standard in their specifications. So are they Euro 3 or Euro 4, since they are bought so recently? And it's quite unbelievable a bus with an engine that sounds like a "vacumn cleaner" is so clean. If it's Euro 4 it'll be quite impressive.
Volvo B10L CNG
- available in natural gas and biogas versions
- front and middle entries, which are only 320 mm above street level, can be lowered a further 90 mm when kneeling
- comes with two power ratings (250/290hp) and two transmissions (ZF / Voith)
- air suspension all round, with individual front suspension
- available in overall lengths of up to 14.5 metres
- premium cost of CNG: about S$50,000
- equipped with VolvoÂ’s new electronic architecture, BEA, a multiplex-based system that offers extremely reliable communication between the busÂ’s various electronically controlled components
- uses Volvo GH10C engine, basically a 6-cylinder 10-litre diesel engine that has been modified to run on the Otto operating cycle
- maximum efficiency rating is about 37% as opposed to a peak level of around 45% for a diesel engine
- equipped with compressed air brakes in accordance with the EU brake system regulations, and features separate circuits for front and rear wheels, an air drier and automatic brake adjustment
Volvo B10BLE CNG (Low-Entry Chassis Mod)
shown as Volvo 8500LE-CNG complete body- available in natural gas and biogas versions
- low-entry bus only have two steps throughout the whole length of the interior
- front and middle entries, which are only 320 mm above street level, can be lowered a further 90 mm when kneeling
- comes with two power ratings (250/290hp) and two transmissions (ZF / Voith)
- air suspension all round, with individual front suspension
- available in overall lengths of up to 14.5 metres
- premium cost of CNG: about S$50,000
- equipped with VolvoÂ’s new electronic architecture, BEA, a multiplex-based system that offers extremely reliable communication between the busÂ’s various electronically controlled components
- uses Volvo GH10C engine, basically a 6-cylinder 10-litre diesel engine that has been modified to run on the Otto operating cycle
- maximum efficiency rating is about 37% as opposed to a peak level of around 45% for a diesel engine
- equipped with compressed air brakes in accordance with the EU brake system regulations, and features separate circuits for front and rear wheels, an air drier and automatic brake adjustment
Volvo B10BLE Bogie CNG
shown as Volvo 8500LE-CNG complete body Volvo B10LA CNG (Articulated Chassis Mod)
- available in natural gas and biogas versions
- available in overall lengths of up to 18 metres
- comes with one power rating (290hp) and two transmissions (ZF / Voith)
- rear-engined bus which has a stepless interior floor, with a low entry height of only 320 mm for all doors ahead of the third axle
- entry height can be lowered to 230 mm with the optional kneeling facility
- air suspension all round with individual double wishbones on the front
- equipped with VolvoÂ’s new electronic architecture, BEA, a multiplex-based system that offers extremely reliable communication between the busÂ’s various electronically controlled components
- uses Volvo GH10C engine, basically a 6-cylinder 10-litre diesel engine that has been modified to run on the Otto operating cycle
- maximum efficiency rating is about 37% as opposed to a peak level of around 45% for a diesel engine
- equipped with compressed air brakes in accordance with the EU brake system regulations, and features separate circuits for front and rear wheels, an air drier and automatic brake adjustment
Renault Renault Agora (CNG Version)
- low-floor version
- bus cost: about S$464,600 (CNG premium: about S$70,000)
- carries up to 112 passengers
Renault Agora L (Articulated CNG Version)
- engine type: MGDR 06.20.45 A491, 186 kW/ 253hp
- low-floor version
- bus cost: about S$666,600 (CNG premium: about S$91,000)
- carries up to 137 passengers
MAN Trucks MAN NL 232 CNG
(Euro V and better)
- lean-burn engine: MAN E2866 D; 6 in-line cylinders; process: 4-stroke aspirated Otto cycle; fuel receptacle: NGV-1
- hp: 170 kW/ 231hp
- max. torque: 860 Nm
- displacement: 11.97 L
- carries up to about 100 passengers
- fuel storage: 120 L (water volume equivalent)
MAN NUE 313 CNG
(Euro V and better)- lean-burn engine: MAN E2866 LUH 01; 6 in-line cylinders; process: 4-stroke Otto cycle, intercooled, turbocharged; displacement: 11.97 L; fuel receptacle: NGV-1
- hp: 228 kW/ 310 hp at 2100 rpm
- torque: 1,250 Nm at 1,400 rpm
- top speed: 97 km/h
- cost not available
- carries up to about 76 passengers
- wide entries and wide gangways permit a rapid and smooth flow of passengers at stops
- proven low-floor technology (entries without steps at doors 1 and 2) and the "kneeling" system provide for passenger friendly boarding and departure, lowering the entry height by a further 70 - 80 mm
- disk brakes on the front and rear axle combined with an electronic brake system (EBS)
- fuel storage system for gas compressed to 200 bar takes up more space than on conventional diesel city buses
- MAN NUE 313 CNG needs eight aluminium composite pressure tanks while the MAN NUG 313 CNG needs ten
- ZF 5HP592 model automatic gearbox with an integrated retarder
- integrated rear view camera, which can also be switched over to monitor the passenger compartment
MAN NUG 313 CNG (Articulated)
- engine: CNG MAN E 2866 LUH 01 lean burn (l > 1)
- displacement: 12 L
- hp: 228 kW/ 310 hp at 2100 rpm
- bus cost: about S$747,400 (CNG premium: about S$115,000)
- carries up to about 151 passengers
Heuliez Bus SA (France) GX 317 GNV
- engine: MGDR 06.20.45 A491
- hp: 186 kW/ 253hp
- max. torque: 1,000 Nm
- fuel storage: 1,126 L (water volume equivalent) in 9 light composite 126 L-tanks
- bus cost: about S$444,400 (CNG premium: about S$72,000)
- carries up to about 109 passengers
DesignLine Electric Hybrid City "Shuttle" Bus it should be noted that current diesel buses can be retrofitted with a CNG engine.
it is noted in some reports that CNG buses consume more fuel due to it being 700kg heavier (estimation) than its Euro III diesel counterparts, and that CNG engines are 10%-15% less efficient than diesel engines though they are cleaner. that could explain why SBST mentioned that the 2 Volvo CNG buses costs 30% more to operate.
Information & photos courtesy of:
http://www.busaustralia.comhttp://hk.geocities.com/k2e_specialhttp://www.mercedes-benz.co.zahttp://www.safflekarosseri.sehttp://www.volvo.com/bus/global/en-gb/products/city+buses/chassis/http://www.euweb.de/NGVeurope/heavyduty.htmhttp://www.mantrucks.ie/pages/page_show.asp?pgID=48http://www.busexplorer.com
Conventional Euro-3 buses from Volvo. (for possible modification to Euro-4)
