Techno-Economic Assessment of Associated Gas Fueled Fleets of Reheat Gas Turbine Plants

Abstract

There are various advantages in investing in the commercialization
of associated gas for power generation via gas turbines. Some of
these advantages include massive energy generation, a high
economic return, and a reduction in pollution and environmental
deterioration. This paper provides a model and method for
optimizing the techno-economics of gas turbine fleets that use
associated gas as fuel. The methodology has the potential to be
beneficial as a decision-making tool for investors and governments
interested in investing in connected gas economic exploitation. The
in-house gas turbine performance software (TURBOMATCH) from
Cranfield University was used to model a hypothetical but realistic
296MW reheat engine. According to the study, compressor
degradation reduced overall optimal power by 3.42%, 2.19%, and
1.09% for three distinct fleets. The research was carried out for one
clean fleet and three degraded fleets (optimistic, medium, and
pessimistic). The net present value of the clean, optimistic, medium,
and pessimistic degraded fleets is 3.03, 2.97, 2.84, and 2.75 billion
US dollars, respectively. The effect of the deterioration in the
optimistic, medium and pessimistic fleets is 1.86, 6.05%, and 9.02%
reductions in the net present values of the project, respectively. The
study would be extremely valuable in decision making for
associated gas investors and governments.