Internal dissipation and heat leaks in nanoscale heat devices - - PowerPoint PPT Presentation

▶
internal dissipation and heat leaks in nanoscale heat
SMART_READER_LITE
LIVE PREVIEW

Internal dissipation and heat leaks in nanoscale heat devices - - PowerPoint PPT Presentation

Mar 03, 2023 685 likes •1.04k views

QUANTUM T E CHNOLOGIE S CONFE RE NCE V I 23-06 --2015 W ARSAW Internal dissipation and heat leaks in nanoscale heat devices Luis A. Correa QUANTUM T E CHNOLOGIE S CONFE RE NCE V I 23-06 --2015 W ARSAW + JOI NT WORK W IT

slide-1
SLIDE 1

Internal dissipation and heat leaks in nanoscale heat devices

Luis A. Correa

QUANTUM T E CHNOLOGIE S CONFE RE NCE V I 23-06

  • -2015

W ARSAW

slide-2
SLIDE 2

JOI NT WORK W IT H:

QUANTUM T E CHNOLOGIE S CONFE RE NCE V I 23-06

  • -2015

Jose P . P alao Daniel Alonso

soon on ar Xiv ...

+

W ARSAW

slide-3
SLIDE 3

motivation

slide-4
SLIDE 4

The three level maser

slide-5
SLIDE 5

The quantum absorption chiller

P alao, Kosloff and Gordon, P h

  • ys. Rev

. E 64, 056130 ( 2001 )

slide-6
SLIDE 6

The quantum absorption chiller

P alao, Kosloff and Gordon, P h

  • ys. Rev

. E 64, 056130 ( 2001 )

slide-7
SLIDE 7

The quantum absorption chiller

P alao, Kosloff and Gordon, P h

  • ys. Rev

. E 64, 056130 ( 2001 )

slide-8
SLIDE 8

The quantum absorption chiller

P alao, Kosloff and Gordon, P h

  • ys. Rev

. E 64, 056130 ( 2001 )

slide-9
SLIDE 9

The characteristic curve

Gordon, Am. J. P h

  • ys. 59 (

6 ) , ( 1991 ) E NDORE VE RSIBLE characteristic curve

slide-10
SLIDE 10

The characteristic curve

Gordon, Am. J. P h

  • ys. 59 (

6 ) , ( 1991 )

  • I

nternal dissi pation

  • Heat leaks
  • F

riction

  • ...

realistic characteristic curve

slide-11
SLIDE 11
  • utline

( 1 ) Motivation ( 2) T he four-level chiller ( 3 ) T he origin of heat leaks and internal dissi pation ( 4 ) Su p pression of heat leaks and internal dissi pation

slide-12
SLIDE 12

The four level

  • chiller
slide-13
SLIDE 13

The four level chiller

slide-14
SLIDE 14

The four level chiller

  • work

hot cold

slide-15
SLIDE 15

The four level chiller

  • work

hot cold

slide-16
SLIDE 16

The origin of heat leaks and internal dissipation

slide-17
SLIDE 17

Three level breakdown

  • work

hot cold

slide-18
SLIDE 18

Three level breakdown

  • work

hot cold

slide-19
SLIDE 19

Three level breakdown

  • work

hot cold

“plus” stage “minus” stage Correa, P h

  • ys. Rev

. E 89, 042128 ( 2014 )

slide-20
SLIDE 20

Internal dissipation

“plus” stage “minus” stage “plus stage's cooling window ”

cooling heating

“minus stage's cooling window ”

cooling heating

slide-21
SLIDE 21

Internal dissipation

irreversible entrop y production Kosloff and Lev y, Annual Rev . P h

  • ys. Chem. 65 365 (

2014 )

slide-22
SLIDE 22

Heat leaks

“plus” stage ( i )

slide-23
SLIDE 23

Heat leaks

“minus” stage ( i ) ( ii )

slide-24
SLIDE 24

Heat leaks

“heat leaks” stage ( i ) ( ii ) ( iii )

slide-25
SLIDE 25

Heat leaks

“heat leaks” stage irreversible entrop y production

slide-26
SLIDE 26

suppression of heat leaks and internal dissipation

slide-27
SLIDE 27

Reservoir engineering

relaxation rate Abah and Lutz, E PL 106 20001 ( 2014 )

slide-28
SLIDE 28

Reservoir engineering

relaxation rate

slide-29
SLIDE 29

Reservoir engineering

relaxation rate

slide-30
SLIDE 30

Reservoir engineering

relaxation rate “plus” stage

slide-31
SLIDE 31

Reservoir engineering

characteristic curve “plus” stage

slide-32
SLIDE 32

Reservoir engineering

relaxation rate Kof man, Kurizki and Sherman, J. Mod. Opt 41 353 ( 1994 )

slide-33
SLIDE 33

Conclusions

( 1 ) We have introduced a minimalç model of irreversible autonomous heat device ( 2) We have described the mechanisms responsible for heat leaks and internal dissi pation ( 3 ) We have proposed reservoir engineering techniques to enhance the performance of the model

slide-34
SLIDE 34

Thank you for your attention