Energy/Agriculture Exhaust Heat Recovery Case Study
Innovative Energy Systems
Oakfield, NYUSA Heat Exchange Focus:
HRSR - Heat Recovery Silencer Radial Series (7 units)
Installation consists of seven Cain HRSR-330C26SSP heat transfer models. Each unit is recovering 1,845,000 BTUs per hour from its paired Caterpillar 3516 engine. The heat sink temperature of hot water (300 GPM) is being raised from 180°F to 194°F by reducing the engine exhaust gas temperature from 922°F to 387°F (2,766 SCFM).
Payback vs. Fuel Savings (per unit)
Unit Cost: $57,716
Payback: 8.3 Months
Annual ROI: 144%
Annual Fuel Savings: $83,006
Life Expectancy Fuel Savings: $1,660,120 (20 years)
Summary:
What began as a method of utilizing expendable landfill gas to produce energy has evolved into full-circle energy recycling for Innovative Energy Systems. The company generates and sells enough electricity to light a small city, and uses the heat captured by seven Cain heat recovery units to heat their 12.5 acre greenhouse, producing 5.5 million pounds of hot house tomatoes annually.
