Procedure for Haul Truck On-Board LNG Fuel Systems Performance Evaluation

¹ T.F. Gorbachev Kuzbass State Technical University, Department of Mechanical Engineering Technology, 28 Vesennya st., Kemerovo, the Russian Federation
² T.F. Gorbachev Kuzbass State Technical University, Department of Building Structures, Water Supply and Disposal, 28 Vesennya st., Kemerovo, the Russian Federation
³ OOO«Sibir-Energo», 13 Schyorsa st., Novokuznetsk, the Russian Federation
⁴ ОАО «BELAZ» -Management Company of Holding «BELAZ-HOLDING», 4 40 let Octyabrya st., Zhodino, Minsk region, Republic of Belarus

^* Corresponding author: nikokem@mail.ru

Abstract

The state-of-the-art of the advantages of using liquefied natural gas as a motor fuel for haul trucks instead of oil motor fuel is considered. It is noted that the energy intensity of the process of rock mass hauling by dual-fuel (gas-diesel) haul trucks is less than that of haul trucks running on diesel only. It is argued that the most promising in relation to heavy-duty mining trucks, is the conversion of diesel engines to gas-diesel operation. The universal integrated procedure for evaluating currently used haul truck on-board cryogenic fuel systems performance is presented. The method of evaluating the “rate of replacement” of diesel fuel with liquefied natural gas, when operating haul trucks equipped with on-board cryogenic fuel systems, is described in detail. The possible sequence of per-cycle, per-ingle-shift and per-day monitoring of the rate of diesel fuel replacement with liquefied natural gas is presented. The method for evaluating the economic efficiency of the operation of high-payload-capacity haul trucks conversed to gas-diesel operation is given, which allows, among other things, determining the actual service life of on-board cryogenic fuel systems and their time to failure.