The Challenge
CANUSA EPC was tasked with adding heat trace (piping freeze protection) and building heat to a gas plant. It was noted that there was a large amount of waste heat being released into the atmosphere from cooling oil at the adjacent oil battery. The Client wanted to investigate if there were options to utilize this waste heat, reducing operating costs and GHG emissions. The heat source was provided at 60°C where typical glycol heating systems operate at a minimum of 90°C.
The Solution
The heat duty required for providing heat to the facility was approx. 3.5MMBTU/hr and the heat duty available from cooling the oil was 10MMBTU/hr. CANUSA EPC designed a unique system based on a proprietary calculation model to utilize the warm glycol exiting the oil cooler at 60°C.
Developing a Plan to Meet Client Expectations
- Leveraged our in-house process and design experts
- Developed and managed installation scope to meet existing project schedule
Sourced New Equipment:
- Glycol boiler
- Glycol cooler
- Waste heat recovery building
- Glycol pump
- Glycol heat trace and supply/return manifolds
- Glycol building heaters
Execute Value Engineering to Support the Project Schedule
- Rigorous heat duty and heat transfer calculations to maximize efficiency
- Hydraulic modeling of the GHT system
- GHT and manifold isometrics to control costs of installation
The Results
Lowered emissions of the facilities
- Eliminated 4.4 MTPD of CO2 equivalent emissions
Lowered annual facility operating costs
- Estimated $100,000+ CDN/year OpEx savings
Integrated waste heat recovery
- Designed and implemented a GHT system to operate with 60⁰C warm glycol
