Results 31 to 40 of about 6,351,769 (402)
Energies, 2022 Regulations and restrictions against high global warming potential (GWP) refrigerants have been introduced to encourage the adoption of environmentally friendly refrigerants and mitigate the environmental impact of the HVAC industry.
Hieu Ngoc Hoang +2 more
doaj +1 more source
Performance comparison of cooling systems using R410a and RE170 as working fluids at various condensing temperature [PDF]
BIO Web of ConferencesIn addition to being used as a fuel and propellant, dimethyl ether (RE170) can also be used as an environmentally friendly refrigerant. Apart from having zero ozone depletion potential (ODP), this compound also has a very low global warming potential ...
Setyawan Andriyanto +2 more
doaj +1 more source
Seasonal coefficient of performance of air-to-air heat pump and energy performance of a building in Poland [PDF]
E3S Web of Conferences, 2019 The article discusses the problem of determining for air heat pumps the seasonal efficiency of energy production necessary to determine the energy performance of a building.
Kowalski Piotr, Szałański Paweł
doaj +1 more source
Applied Sciences, 2018 In this study, to investigate the performance characteristics of a seawater ice-making device, using a scraped surface double tube evaporator, experiments were conducted under various operating conditions, including inlet temperature and flow rate of ...
Hyun-Kyung Lee +7 more
doaj +1 more source
International Journal of Environmental Research and Public Health, 2020 The airborne transmission of SARS-CoV-2 is still debated. The aim of this rapid review is to evaluate the COVID-19 risk associated with the presence of air-conditioning systems. Original studies (both observational and experimental researches) written in
Francesco Chirico +3 more
semanticscholar +1 more source
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Energy and Built Environment, 2022 Uniform ventilation is important for the safety of long tunnel in underground buildings, it is difficult to install the large size air duct to ensure the centerline of each cross-section of the traditional variable cross-section ventilation system(VCVS ...
Qi Deng +5 more
doaj
Heating, ventilation and air conditioning (HVAC) in intensive care unit
Critical Care, 2020 The aim of this review is to describe variation in standards and guidelines on ‘heating, ventilation and air-conditioning (HVAC)’ system maintenance in the intensive care units, across the world, which is required to maintain good ‘indoor air quality’ as
S. Saran +6 more
semanticscholar +1 more source
Indoor air pollution in Air-Conditioned bus and non-Air-Conditioned bus
IOP Conference Series: Earth and Environmental Science, 2021 Abstract The use of buses as mass transportation mode has become a popular option for the people because of the cheap price and flexibility. The bus comfort is one of the keys to improving the quality of transportation service. However, the bus capability to carry many people with various conditions has a potential risk of creating ...
I E Husna +3 more
openaire +2 more sources
Application of transparent insulation materials to buildings heating in passive solar systems
Journal of Civil Engineering and Management, 2002 The aim of this paper is to present a numerical model, based on the finite difference method and able to describe the heat transfer in a room with indirect passive solar system in form of transparent insulation material (TIM) wall.
Halina Koczyk +2 more
doaj +1 more source