Title:
COMPOSITION INCLUDING REFRIGERANT, USE OF THE SAME, REFRIGERATING MACHINE HAVING THE SAME AND METHOD FOR OPERATING THE REFRIGERATING MACHINE
Document Type and Number:
Japanese Patent JP2021075733
Kind Code:
A
Abstract:
To provide a mixed refrigerant that has four kinds of performances of having such excellent coefficient of performance and excellent refrigeration capacity as to serve as an alternative refrigerant for R410A, having sufficient small GWP and being nonflammable.SOLUTION: A composition including a refrigerant is characterized in that the refrigerant includes trifluoroiodomethane (CF3I), difluoromethane (R32) and trifluoroethylene (HFO-1123) and that in a ternary composition diagram such that the total sum of HFO-1123, CF3I and R32 is 100 mass%, when the mass% of each of HFO-1123, CF3I and R32 based on the total sum thereof is expressed as x, y and z, respectively, coordinates (x,y,z) lie within a range of a figure surrounded by line segments ZN, NL and LZ connecting three points of point Z (41.6, 53.5, 4.9), point N (0.0. 77.2, 22.8) and point L (0.0. 35.0, 65.0), respectively (exclusive of on the line segment NL); the line segment ZN is represented by a coordinate (x, -0.0007x2-0.5402x+77.2, 0.0007x2-0.4598x+22.8); and the line segments NL and LZ are straight lines.SELECTED DRAWING: None
Inventors:
ITANO MITSUSHI
TAKAHASHI KAZUHIRO
KUROKI HITOMI
TAKAHASHI KAZUHIRO
KUROKI HITOMI
Application Number:
JP2021018494A
Publication Date:
May 20, 2021
Filing Date:
February 08, 2021
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
C09K5/04; F25B1/00
Domestic Patent References:
| JP2016056340A | 2016-04-21 | |||
| JP2017145380A | 2017-08-24 | |||
| JPH0959612A | 1997-03-04 | |||
| JPH08277389A | 1996-10-22 |
Foreign References:
| WO2020071380A1 | 2020-04-09 |
Attorney, Agent or Firm:
Patent Business Corporation Saegusa International Patent Office