Lamar landfill case study0 pages

ENVIRONMENTAL SOLUTIONS

Dresser-Rand Guascor® Engines and Gen-sets

Gen-sets for Lamar City Landfill
Case Study

The Opportunity
The City of Lamar is located 110 miles south of Kansas City in
southwestern Missouri. Lamar is best known as the birthplace of
President Harry Truman and the town where Wyatt Earp first worked
as a constable. With a population of 4,500 people whom embrace a
small town way of life, Lamar is a quintessential picture of the American
heartland.
What makes Lamar unique for a community of its size is that it
remains on the cutting edge of energy technology and environmental
responsibility. The town owns and operates a waste-to-energy plant at its
municipal landfill and exports power to 2,000 homes in the city.

Benefits
❚❚ Highly reliable, high efficiency, t
t proven landfill gas engines tt
t reduce the cost of power tt
t produced with better engine t
t support and service
❚❚ Reliable and resilient power for t
t the community
❚❚ More jobs for the community, a t
t better managed landfill and t
t better place to live
❚❚ Increased green energy footprint t
t for Lamar city; enough to power t
t 1,616 homes or industrial facilities t
t at reasonable and stable costs
❚❚ Flaring reduced to minimal (or t
ttzero)
❚❚ This 2x1.35 MW Clean Energy t
t project represents following t
t Equivalent Emissions Reduced:*
t • t 5,379 ton reduction of t t
tt methane emissions annually
t •t Reduced CO2, 0.1220 MMTCO2 t
tt E/yr
t •t Reduced coal consumption t
tt (654 rail cars worth)
t •t Reduced gasoline t
t
tt consumption (13.7 million t
tt gallons)
(*): EPA LFG Energy Benefits Calculator (www.epa.gov)

The Lamar landfill accepts approximately 1,650 tons per day of
predominately municipal solid waste (MSW) from a six-county area.
The primary sources of the MSW are residential, institutional and light
commercial waste.
In 2010, the landfill installed two 1.6 MW gas engines to run on the
methane produced by the waste stored in the landfill. Due to ongoing
landfill expansion, there was enough additional landfill gas (LFG)
produced to fuel two additional reciprocating gas engines.

The Solution
After careful evaluation and analysis of potential engine generator
options — including existing gas engine generator sets operating at
the site — the City of Lamar selected Martin Machinery to install two
of Dresser-Rand´s LFG-fired Guascor® HGM 560 engine gen-sets, each
rated at 1,350 kW, to produce the additional high-efficiency power
needed.
Robustness, fuel flexibility and efficiency of Dresser- Rand´s Guascor
engine, coupled with improved service and support capabilities of Martin
Machinery, were key factors in Lamar’s decision to install Dresser-Rand´s
Guascor engines.
The maximum hourly heat input rate is 11.2473 million British Thermal
Units per hour (MMBtu/ hr) each (3,295 kW per hour). With a fuel
heating value of 479 Btu/ scf (505 kJ/nmc) for the LFG, the amount
of LFG combusted by the engine at 100% loading is calculated to be
0.02348 mmcf/hr (664.48 nmc/hr).
These engines have averaged 97% availability since being commissioned.
Engine performance, as well as support and service provided by Martin
Machinery, have exceeded the town’s expectations.