Results 71 to 80 of about 13,306 (305)

Thermodynamic analysis of vapour compression refrigeration system using alternative refrigerants

IOSR Journal of Mechanical and Civil Engineering, 2014
This research is aimed to define , (1) the effects of refrigerant to the environment, (2) derive the eco friendly refrigerants by using software REFPROP, (3) describe the properties of refrigerant by mixing them in appropriate percentage, (4) reducing GWP and ODP by providing suitable substitute of CFC’s and HCFC’s refrigerants, (5) reducing the effect
Monika Singh, Prashant Somvanshi
openaire   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Assessment of using different ozone-friendly R22 alternative refrigerants in residential air conditioners in a high-ambient temperature country

Journal of Engineering and Applied Science
The performance of a vapor compression refrigeration system (VCRS)-based residential air conditioner operating in a high-ambient temperature (HAT) country was investigated using six zero-ODP (ozone depletion potential) refrigerants as replacements to R22.
Wail Sami Sarsam
doaj   +1 more source

COP improvement of refrigerator/freezers, air-conditioners, and heat pumps using nonazeotropic refrigerant mixtures [PDF]

With the February, 1992 announcement by President Bush to move the deadline for outlawing CFC (chloro-fluoro-carbon) refrigerants from the year 2000 to the year 1996, the refrigeration and air-conditioning industries have been accelerating their efforts ...
Westra, Douglas G.
core   +1 more source

Mapping of horizontal refrigerant two-phase flow patterns based on clustering of capacitive sensor signals [PDF]

, 2010
A
Bauwens, Bruno, Canière, Hugo, De Paepe, Michel, T'Joen, Christophe   +3 more
core   +2 more sources

Thermophysical Properties of Alternative Refrigerants.

, 1994
The need for new environrnentally acceptable refrigerants, with low or zero ozone depletion potential and low global warming potential, led the industrial and the scientific community to launch a significant research effort on the thermophysical properties of these compounds.
Gurova, A. N., Barão, M. T., Sousa, Ana T., Nieto de Castro, Carlos A., Mardolcar, Umesh V., Fialho, Paulo   +5 more
openaire   +2 more sources

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Defining the Legal and Policy Framework to Stop the Dumping of Environmentally Harmful Products [PDF]

, 2018
Environmental dumping is a practice historically associated with the export of hazardous product waste from a developed country for irresponsible and often illegal disposal in a developing country.
Andersen, Stephen O., Carvalho, Suely, Ferris, Richard, Gonzalez, Marco, Picolotti, Romina, Zaelke, Durwood   +5 more
core   +1 more source

Flexible Chemiresistive Chitosan‐Glycerol Sensors on Laser‐Induced Graphene Electrodes for Room‐Temperature Ammonia Detection

Advanced Materials Technologies, EarlyView.
Flexible Chitosan‐glycerol sensor integrated with porous laser‐induced graphene (LIG) electrodes enable room‐temperature chemiresistive detection of ammonia (NH3) and proof‐of‐concept detection of fish spoilage. ABSTRACT We report a metal‐free sensor platform combining laser induced graphene (LIG) electrodes with drop‐deposited, glycerol‐plasticized ...
Mintesinot Tamiru Mengistu, Richard Murray, Cara‐Lena Nies, Cathal Larrigy, Martina Piletti, Jahidul Islam, Daniela Iacopino, Eileen Hurley, Michael Nolan, Aidan J. Quinn   +9 more
wiley   +1 more source

Research Progress on Application of Novel Low GWP Refrigerants in Temperature Range from −100 ℃ to 200 ℃

Zhileng xuebao
A refrigerant is an essential working fluid in a vapor-compression refrigeration cycle. Hydrofluorocarbons are currently used as refrigerants in refrigeration, air-conditioning, and heat pump systems and are potent greenhouse gases.
Zhang Di, Guo Zhikai, Yu Wanjin, Lu Peng, Liu Yaoyao, Liu Wucan, Zhang Jianjun   +6 more
doaj   +2 more sources