Wellons has been a key participant in the development of a number of district heating systems in the US and Canada.
Each energy systems is custom designed based on temperature and load profile requirements. Steam and Hot Water systems are available ranging in size from 3 MW (10 MM Btu/hr) to 26 MW (90 MM Btu/hr).
Steam Systems
Hot Water Systems
Steam Systems
Wellons is capable of converting an existing fossil fuel steam district heating system to biomass, or building a new district heating system with combined heat and power (CHP) capability.
Two x 600 HP boilers (40,000 pph) 300 psi steam
Steam used for space heating and cooling in 1,000,000 ft2 complex with multiple buildings and to power a 750 KW turbine.
Wellons Canada scope included fuel storage, step grate combustor, boiler, and emissions control equipment.
1 x 600 HP (20,000 PPH) boiler, 400 psi steam
Steam used for space heating and cooling in a complex with numerous buildings and to power a 500 KW turbine.
Wellons Canada scope included fuel storage, step grate combustor, boiler, and emissions control equipment.
Two x 300 HP (20,000 PPH) boiler, 400 psi steam
Steam used for space heating and cooling in a complex with numerous buildings and a 400 KW turbine.
Wellons Canada scope included fuel storage, step grate combustor, boiler, and emissions control equipment.
Hot Water Systems
Many new district heating systems utilize hot water due to the lower capital cost and higher efficiency of hot water systems as opposed to steam systems. Wellons provides a range of clean biomass energy solutions for new district heating systems or converting an existing system fired by fuel oil or coal.
20 MM Btu/hr (6MW) Biomass Thermal Oil heater
1 MWe ORC Unit providing hot water (via the ORC condenser) to heat 22 buildings on campus.
Wellons Canada scope included fuel storage, step grate combustor, thermal oil heater, and emissions control equipment.
46 MM Btu/hr (13.5 MW) Biomass Thermal Oil heater
A thermal oil to hot water heat exchanger provides hot water to buildings on the Simon Fraser University campus.
Wellons Canada scope included fuel storage, step grate combustor, thermal oil heater, and emissions control equipment.
Wellons Canada designed and installed a Waste Heat Recovery System on an existing biofuel energy system to provide sufficient hot water for the base load space heating and domestic hot water requirements for 9 buildings in Prince George.
Wellons Canada scope included waste heat recovery unit, associated pumps and piping, a thermal oil to water heat exchanger and an electrostatic precipitator.
