Refrigerant-Free Air Conditioning: Completely Safe, Environmentally-Friendly Cooling

2012 ◽  
Author(s):  
Paul Frenger
Keyword(s):  
Air Conditioning ◽  
Environmentally Friendly ◽  
Free Air

Lubricity effect of carbon dioxide used as an environmentally friendly refrigerant in air-conditioning and refrigeration compressors

Wear ◽  
2010 ◽  
Vol 270 (1-2) ◽  
pp. 46-56 ◽  
Author(s):  
Emerson Escobar Nunez ◽  
Kyriaki Polychronopoulou ◽  
Andreas A. Polycarpou
Keyword(s):  
Carbon Dioxide ◽  
Air Conditioning ◽  
Environmentally Friendly

Hotel Belmar: Analytical Review of the Challenges Facing an Eco-Hotel in Costa Rica

2017 ◽  
Vol 1 (1) ◽  
pp. 1-7
Author(s):  
Marlene M. Reed ◽  
Les Palich
Keyword(s):  
Costa Rica ◽  
Air Conditioning ◽  
Environmentally Friendly ◽  
Sustainable Practices ◽  
Analytical Review ◽  
Sustainability Practices ◽  
Animal Farm ◽  
Sustainability Program

The owners of the Hotel Belmar, an eco-hotel in Monteverde, Costa Rica, were concerned about the acceptance of their sustainability practices by guests. In September 2013, the hotel had adopted a sustainability program and had applied it to their hotel, restaurant, garden, animal farm, and microbrewery. However, the owners had received complaints about issues arising from their environmentally friendly practices such as the presence of bugs and rodents, the lack of televisions in the rooms, and a problem with heat in the summer and cold in the winter due to the lack of heating and air conditioning in the hotel. Pedro, the hotel's manager, wondered how he could identify and reach guests who might enjoy the environmentally friendly eco-hotel and deal with the complaints that arose from the hotel's sustainable practices.

Comparative scuffing performance and chemical analysis of metallic surfaces for air-conditioning compressors in the presence of environmentally friendly CO2 refrigerant

Wear ◽  
2010 ◽  
Vol 268 (5-6) ◽  
pp. 668-676 ◽  
Author(s):  
Emerson Escobar Nunez ◽  
Nicholaos G. Demas ◽  
Kyriaki Polychronopoulou ◽  
Andreas A. Polycarpou
Keyword(s):  
Chemical Analysis ◽  
Air Conditioning ◽  
Environmentally Friendly ◽  
Metallic Surfaces

scholarly journals Holistic Approach for Creating Environmentally Friendly Campus

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Andrey Andoko ◽  
Niki Prastomo
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Open Space ◽  
Waste Heat ◽  
Environmentally Friendly ◽  
Holistic Approach ◽  
Clean Energy ◽  
Sewage Water ◽  
Air Ventilation ◽  
Sustainability Program

To achieve an environmentally friendly campus, UMN operates gas engine generator with co-generation system. Waste heat from generator powers absorption chiller for air conditioning. UMN benefits clean energy sources, reduced pollution, and energy saving. The next phases rely on energy consumption reduction by applying passive design. Two towers were designed with double-skin facade. The perforated aluminum panel reduces solar heat gain on the building wall while still allows sunlight into the room for natural lighting. Lower room temperature will reduce cooling load, which will save energy. Combined with energyefficient appliances and natural air ventilation for corridors and open space, this concept saves more than half of energy consumption. Both towers were awarded the first and second winners of ASEAN Energy Award in 2014 and 2019. Various trees have been planted and produce oxygen to supply fresh air to create comfortable studying environment without air conditioning. To reduce carbon footprint, UMN provides shuttle bus and bike-sharing service. A holistic approach is implemented by recycling and conserving water with sewage water treatment and infiltration wells surrounding the campus. As part of the sustainability program, UMN has also utilized solar energy.

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