Waste Heat Recovery
Sections
Heat Pump Systems for Electric Vehicles
Technical analysis of EV heat pump systems including reversible refrigerant cycles, CO2 systems, waste heat recovery, cold weather COP, and efficiency vs PTC heaters.
Single-Effect Absorption Chillers
Single-effect absorption chillers utilize low-grade heat sources at 230-250°F to produce cooling with COP ~0.7, offering waste heat recovery and solar thermal integration opportunities.
Absorption Chillers: Heat-Driven Cooling Technology
Technical analysis of absorption chiller thermodynamics, lithium bromide-water cycles, COP performance, and waste heat recovery applications for HVAC systems.
Engine Coolant Heating Systems
Technical analysis of automotive engine coolant heating, covering waste heat recovery, thermostat operation, heater core sizing, coolant flow control, and warmup calculations.
Subway Rail Car Heating Systems
Technical analysis of subway rail car heating including electric resistance, heat pump systems, waste heat recovery, and heating load calculations for underground transit.
Industrial Sector Energy Consumption Patterns
Industrial energy use accounts for 33% of U.S. primary energy. Process heating dominates at 40%, while HVAC represents 10-15%, with significant waste heat recovery potential.
Waste Heat Recovery for Snow Melting Systems
Engineering analysis of waste heat sources for hydronic snow melting, including availability calculations, heat exchanger design, and economic feasibility assessment.
Heat Sources for Snow Melting Systems
Comprehensive analysis of heat sources for snow melting applications including boilers, heat pumps, geothermal, solar thermal, and waste heat recovery with sizing criteria and performance comparison