Articles tagged with "air-conditioning"
Game-changing US cooling system saves money, reduces grid demand
A new air-conditioning system called the Energy Storing and Efficient Air Conditioner (ESEAC), co-developed by the National Renewable Energy Laboratory (NREL) and Blue Frontier Inc., promises to significantly reduce cooling costs and electricity demand on the grid. Tested in a Florida trial, the 20-ton ESEAC unit demonstrated the ability to cut peak air-conditioning power demand by over 90% and reduce cooling bills by approximately 45%. The system achieves these savings by integrating energy storage with cooling and humidity control, shifting the most energy-intensive parts of the cooling process to off-peak hours or times when renewable energy is abundant. ESEAC operates by decoupling dehumidification from cooling, using a liquid desiccant to absorb moisture from incoming air and then applying ultra-efficient indirect evaporative cooling. This approach contrasts with conventional vapor-compression air conditioners that cool and dehumidify simultaneously, often leading to inefficiencies. The system stores energy in the form of concentrated salt-based desiccant and
energyair-conditioningenergy-storagegrid-demand-reductioncooling-technologyrenewable-energy-integrationenergy-efficiencyMy Heat Pump Water Heater Provides Free AC - CleanTechnica
The article highlights an innovative benefit of heat pump water heaters (HPWHs): they provide free, filtered cool air as a byproduct of heating water. Unlike traditional water heaters that emit pollution, HPWHs extract heat from the surrounding air to warm water, exhausting only cool air similar to an air conditioner. This process makes them highly efficient, delivering about four units of heat for every unit of energy consumed, resulting in low electricity costs (typically $100-$150 annually). The author has installed multiple HPWHs and, after initially ducting the cool air outside, recently began exhausting it indoors, effectively using the system as a free air conditioner during hot summer days. By increasing the water temperature setting from 120°F to 140°F during peak solar production hours, the HPWH runs its heat pump for several hours, producing cooling equivalent to a small window AC unit without additional electricity costs. This strategy cools the living space during the hottest part of the day, with built-in anti-scald
energyheat-pump-water-heaterair-conditioningenergy-efficiencyrenewable-energyhome-heatingsustainable-technologyClimate Change Is Bringing Legionnaire’s Disease to a Town Near You
The article highlights the growing public health threat posed by Legionnaire’s disease, a bacterial pneumonia linked to Legionella bacteria that thrives in warm, stagnant water found in large cooling systems such as those in apartment buildings. This summer, New York City has experienced a significant outbreak, with over 100 cases and five deaths, primarily linked to massive air conditioning units that disperse bacteria-laden mist into the air. While Legionnaire’s disease has traditionally been a localized issue, climate change is expanding its reach by creating warmer conditions that favor bacterial growth, especially in older urban infrastructure across the Northeast and Midwest. Legionella bacteria are commonly found in natural water sources but usually in concentrations too low to cause illness. However, the combination of rising temperatures and aging water systems in cities has increased the risk of outbreaks. Vulnerable populations—including the elderly, young children, pregnant people, and immunocompromised individuals—are at higher risk, with about 5,000 annual deaths in the U.S., often concentrated
energyclimate-changepublic-healthLegionnaire's-diseaseair-conditioninginfrastructurebacterial-infectionLG Dualcool AI Air - điều hòa với hai khe thổi gió
IoTenergysmart-homeair-conditioningLGDualcool-AIenergy-efficiencyAqua lần đầu ra mắt điều hòa điều khiển bằng giọng nói
IoTsmart-homevoice-controlenergy-efficiencyair-conditioningAI-technologyuser-experienceSuper-Efficient Air Conditioning Technology Slashes Energy Costs
energyair-conditioningelectricity-consumptionCO2-emissionsclean-technologyclimate-changeenergy-efficiency