Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Waste_heat> ?p ?o }
- Waste_heat abstract "Waste heat is by necessity produced both by machines that do work and in other processes that use energy, for example in a refrigerator warming the room air or a combustion engine releasing heat into the environment. The need for many systems to reject heat as a by-product of their operation is fundamental to the laws of thermodynamics. Waste heat has lower utility (or in thermodynamics lexicon a lower exergy or higher entropy) than the original energy source. Sources of waste heat include all manner of human activities, natural systems, and all organisms. Rejection of unneeded cold (as from a heat pump) is also a form of waste heat (i.e. the medium has heat, but at a lower temperature than is considered warm).Instead of being “wasted” by release into the ambient environment, sometimes waste heat (or cold) can be utilized by another process, or a portion of heat that would otherwise be wasted can be reused in the same process if make-up heat is added to the system (as with heat recovery ventilation in a building).Thermal energy storage, which includes technologies both for short- and long-term retention of heat or cold, can create or improve the utility of waste heat (or cold). One example is waste heat from air conditioning machinery stored in a buffer tank to aid in night time heating. Another is seasonal thermal energy storage (STES) at a foundry in Sweden. The heat is stored in the bedrock surrounding a cluster of heat exchanger equipped boreholes, and is used for space heating in an adjacent factory as needed, even months later. An example of using STES to utilize natural waste heat is the Drake Landing Solar Community in Alberta, Canada, which, by using a cluster of boreholes in bedrock for interseasonal heat storage, obtains 97 percent of its year-round heat from solar thermal collectors on the garage roofs. Another STES application is storing winter cold underground, for summer air conditioning.On a biological scale, all organisms reject waste heat as part of their metabolic processes, and will die if the ambient temperature is too high to allow this.Anthropogenic waste heat is thought by some to contribute to the urban heat island effect. The biggest point sources of waste heat originate from machines (such as electrical generators or industrial processes, such as steel or glass production) and heat loss through building envelopes. The burning of transport fuels is a major contribution to waste heat.".
- Waste_heat thumbnail 2008-07-11_Air_conditioners_at_UNC-CH.jpg?width=300.
- Waste_heat wikiPageID "5163454".
- Waste_heat wikiPageLength "15614".
- Waste_heat wikiPageOutDegree "91".
- Waste_heat wikiPageRevisionID "682844225".
- Waste_heat wikiPageWikiLink Absorption_refrigerator.
- Waste_heat wikiPageWikiLink Albedo.
- Waste_heat wikiPageWikiLink Alberta.
- Waste_heat wikiPageWikiLink Alphabet_Energy.
- Waste_heat wikiPageWikiLink American_Meteorological_Society.
- Waste_heat wikiPageWikiLink Anthropogenic_heat.
- Waste_heat wikiPageWikiLink Category:Atmospheric_radiation.
- Waste_heat wikiPageWikiLink Category:Climate_forcing.
- Waste_heat wikiPageWikiLink Category:Energy_conversion.
- Waste_heat wikiPageWikiLink Category:Heat_transfer.
- Waste_heat wikiPageWikiLink Category:Thermodynamics.
- Waste_heat wikiPageWikiLink Category:Waste.
- Waste_heat wikiPageWikiLink Climate_forcing.
- Waste_heat wikiPageWikiLink Cogeneration.
- Waste_heat wikiPageWikiLink Cooling_tower.
- Waste_heat wikiPageWikiLink Cost_of_electricity_by_source.
- Waste_heat wikiPageWikiLink Cyclone_Waste_Heat_Engine.
- Waste_heat wikiPageWikiLink District_heating.
- Waste_heat wikiPageWikiLink Drake_Landing_Solar_Community.
- Waste_heat wikiPageWikiLink Electric_energy.
- Waste_heat wikiPageWikiLink Electric_power.
- Waste_heat wikiPageWikiLink Electrical_efficiency.
- Waste_heat wikiPageWikiLink Electrical_energy.
- Waste_heat wikiPageWikiLink Energy.
- Waste_heat wikiPageWikiLink Energy_conversion.
- Waste_heat wikiPageWikiLink Energy_flux.
- Waste_heat wikiPageWikiLink Energy_transformation.
- Waste_heat wikiPageWikiLink Entropy.
- Waste_heat wikiPageWikiLink Exergy.
- Waste_heat wikiPageWikiLink Fuel.
- Waste_heat wikiPageWikiLink Fuels.
- Waste_heat wikiPageWikiLink Glass_making.
- Waste_heat wikiPageWikiLink Glass_production.
- Waste_heat wikiPageWikiLink Global_warming.
- Waste_heat wikiPageWikiLink Greenhouse.
- Waste_heat wikiPageWikiLink Greenhouse_gas.
- Waste_heat wikiPageWikiLink Greenhouses.
- Waste_heat wikiPageWikiLink HVAC.
- Waste_heat wikiPageWikiLink Heat_engine.
- Waste_heat wikiPageWikiLink Heat_exchanger.
- Waste_heat wikiPageWikiLink Heat_recovery_steam_generator.
- Waste_heat wikiPageWikiLink Heat_recovery_ventilation.
- Waste_heat wikiPageWikiLink Heatsinks.
- Waste_heat wikiPageWikiLink Homeostasis.
- Waste_heat wikiPageWikiLink Human_impact_on_the_environment.
- Waste_heat wikiPageWikiLink Integrated_circuit.
- Waste_heat wikiPageWikiLink Lake.
- Waste_heat wikiPageWikiLink Laws_of_thermodynamics.
- Waste_heat wikiPageWikiLink Machine.
- Waste_heat wikiPageWikiLink Machines.
- Waste_heat wikiPageWikiLink Mechanical_energy.
- Waste_heat wikiPageWikiLink Mechanical_work.
- Waste_heat wikiPageWikiLink Metabolic.
- Waste_heat wikiPageWikiLink Metabolism.
- Waste_heat wikiPageWikiLink Oil_refineries.
- Waste_heat wikiPageWikiLink Oil_refinery.
- Waste_heat wikiPageWikiLink Oil_refining.
- Waste_heat wikiPageWikiLink Organic_Rankine_cycle.
- Waste_heat wikiPageWikiLink Ormat.
- Waste_heat wikiPageWikiLink Ormat_Industries.
- Waste_heat wikiPageWikiLink Paper_mill.
- Waste_heat wikiPageWikiLink Paper_mills.
- Waste_heat wikiPageWikiLink Perspiration.
- Waste_heat wikiPageWikiLink Pinch_analysis.
- Waste_heat wikiPageWikiLink Power_plant.
- Waste_heat wikiPageWikiLink Power_station.
- Waste_heat wikiPageWikiLink Power_stations.
- Waste_heat wikiPageWikiLink Processing_medium.
- Waste_heat wikiPageWikiLink Radiative_forcing.
- Waste_heat wikiPageWikiLink Rankine_cycle.
- Waste_heat wikiPageWikiLink Relative_cost_of_electricity_generated_by_different_sources.
- Waste_heat wikiPageWikiLink River.
- Waste_heat wikiPageWikiLink Sea.
- Waste_heat wikiPageWikiLink Seasonal_thermal_energy_storage.
- Waste_heat wikiPageWikiLink Second_law_of_thermodynamics.
- Waste_heat wikiPageWikiLink Seebeck_effect.
- Waste_heat wikiPageWikiLink Steel_making.
- Waste_heat wikiPageWikiLink Steelmaking.
- Waste_heat wikiPageWikiLink Sweating.
- Waste_heat wikiPageWikiLink Swimming_pool.
- Waste_heat wikiPageWikiLink Thermal_energy_storage.
- Waste_heat wikiPageWikiLink Thermal_management_of_electronic_devices_and_systems.
- Waste_heat wikiPageWikiLink Thermal_power_plant.
- Waste_heat wikiPageWikiLink Thermal_power_station.
- Waste_heat wikiPageWikiLink Thermoelectric.
- Waste_heat wikiPageWikiLink Thermoelectric_effect.
- Waste_heat wikiPageWikiLink Thermoregulation.
- Waste_heat wikiPageWikiLink Trigeneration.
- Waste_heat wikiPageWikiLink Urban_area.
- Waste_heat wikiPageWikiLink Urban_heat_island.
- Waste_heat wikiPageWikiLink Urban_metabolism.
- Waste_heat wikiPageWikiLink Warm-blooded.
- Waste_heat wikiPageWikiLink Waste_heat.
- Waste_heat wikiPageWikiLink Waste_heat_recovery_unit.