Results 21 to 30 of about 117,025 (306)
, 2017 CO2 as a natural and fully environmentally friendly refrigerant has become more preferable in refrigeration systems in recent years. Since its critical temperature is much lower than that of other refrigerants.
YILMAZ, BARIŞ
core +2 more sources
Alternative refrigerants and refrigeration cycles for domestic refrigerators [PDF]
, 1992 This project initially focused on using nonazeotropic refrigerant mixtures (NARMs) in a two-evaporator refrigerator-freezer design using two stages of liquid refrigerant subcooling. This concept was proposed and tested in 1975. The work suggested that the concept was 20% more efficient than the conventional one-evaporator refrigerator-freezer (RF ...
Sand, J. R. +2 more
openaire +2 more sources
Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
Scientific Reports, 2017 Environmentally friendly and low-cost technologies to recover low-grade heat source into usable energy can contribute to ease the energy shortage. Thermoacoustic technology is expected as one promising approach in this ascendant field.
T. Jin +4 more
doaj +1 more source
Physical Review E, 2010 We study a refrigerator model which consists of two $n$-level systems interacting via a pulsed external field. Each system couples to its own thermal bath at temperatures $T_h$ and $T_c$, respectively ($θ\equiv T_c/T_h<1$). The refrigerator functions in two steps: thermally isolated interaction between the systems driven by the external field and ...
Allahverdyan, Armen E. +2 more
openaire +3 more sources
Structural optimization of deflector within air-water direct contact tank based on uniform design
Energy and Built Environment, 2022 An appropriate microenvironment for preserving cultural relics is essential, and the air-water direct contact technology is utilized to create the microenvironment recently.
Ning Wang +3 more
doaj +1 more source
Performance evaluation and optimal design of supermarket refrigeration systems with supermarket model "SuperSim", Part I: Model description and validation [PDF]
, 2011 This is the post-print version of the final paper published in International Journal of Refrigeration. The published article is available from the link below.
Y.T. Ge, S.A. Tassou, Ge, YT, Tassou, SA
core +1 more source
Concentrating solar assisted biomass-to-fuel conversion through gasification: A review
Frontiers in Energy Research, 2023 Solar energy, the most abundant and exploitable renewable energy resource, is regarded as a major energy source for the future. Nevertheless, solar irradiation is characterized by relatively low energy density, intermittency and uneven distribution ...
Dequan Xu +5 more
doaj +1 more source
Smart CO2 refrigeration and heat pumping systems [PDF]
, 2023 In February 2023 a proposal has been delivered for a restriction of per- and polyfluoroalkyl substances (PFASs) by Germany, the Netherlands, Norway, Sweden, and Denmark to the European Chemical Agency (ECHA) as the last process within REACH1 .
Hafner, Armin
core
Energies, 2019 Display cases are widely utilized in museums to build an appropriate microenvironment for artifacts. In this study, a novel passive method is utilized to regulate both the temperature and relative humidity simultaneously of the microenvironment in museum
Meng Yu +3 more
doaj +1 more source
Polish Maritime Research, 2022 The study explored the legislative database for the maritime sector to be sustainable and have an intact blue economy. The problem for organizations with shipowners that have fishing boats older than 20 years is stated.
Yalama Viktor +3 more
doaj +1 more source