Defective covalent organic polymers are promising for adsorption-based cooling applications. In their Research Article on page 18037, Guillaume Maurin, Radha Kishan Motkuri, and co-workers present experimental computational evidence that mesoporous defects in the framework play a key role unique overall linear-shaped R134a adsorption isotherm exceptional uptake.

Global warming is one of the most pressing issues world facing today. The refrigeration sector, major contributors to global warming, needs follow a methodological approach address this issue. This paper evaluates overall impact along with thermodynamic performance different generations refrigerants in cascade system. main aim comparative study present comprehensive outlook on environmental ref...

The simulation configuration and process analysis of the Subcritical Organic Rankine Cycle (SORC) system are carried out for potential comparison between pure, binary, ternary zeotropic mixtures R1234ze(E), R1234yf, R134a as refrigerant working fluids based on applying flue gas a heat source with medium temperature. compression pressure was selected an optimized variable input parameter SORC lo...

The condensers of loop thermosyphon PV/T systems (LT-PV/T) are usually integrated inside water tanks, which may bring some challenges during combination use. This research innovatively proposed a concentric copper tube heat exchanger as the condenser, is combined with evaporator beneath absorber. gaseous working fluid flows in inner and cooling outer tube. Since ordinary pipes used for circulat...

Refrigerants with low global warming potential (GWP) are much needed in automotive air conditioning systems. This paper compares two refrigerants, R134a (GWP=1300) and R513A (GWP = 573) experimentally. The results show that the latter has lower cooling capacity, COP discharge temperature than former, revealing is a promising replacement of its high GWP partner.

In this study, we evaluated the performance of low Global Warming Potential (GWP) refrigerant R1234yf on activated carbon (MSC-30) for adsorption heating applications. The isotherms MSC-30/R1234yf were measured using a constant-volume–variable-pressure (CVVP) method from very relative pressure to practical operating ranges. data fitted with several isotherm models non-linear curve fitting. An i...