ARIES-IFE SYSTEMS ISSUES

Ronald Miller

ARIES-IFE Project Meeting General Atomics July 1-2, 2002

Outline Target Fabrication Cost -> COE Simple Power Loop Model Modifications required to for thick-

liquid case (cf. HYLIFE-II)

IFE Target Fab Cost -> COE Introduced at April ARIES-IFE

Meeting (UW-M) based on remarks made at ISFNT-6. No recent activity on this topic. Need to reconcile with results of

IAEA-TM (GA, June 17-19) for closure.

Simple Power Loop Model Gain curve depends on driver (KrF, HI) Solved using iDecideTM COTS

-influence diagram set-up -used in deterministic (not MC) mode -workaround for recursion Thought to scale with Rep Rate (subject to question from G. Logan at April

Meeting)

HYLIFE-II Ref. R. W. Moir, et al., Fusion

Tech., 25 (Jan. 1994) 5. Pumping power does not

contribute to useful thermal power.

HYLIFE-II

HYLIFE-II Pumping Power Logan, Moir, Hoffman, Fusion Tech., 28 (Nov. 1995) 1674. Logan, Moir, Hoffman, UCRL-ID-117334 (May 1994) MathCAD model document Meier, Peterson, personal

communication (June 12) updated MathCAD model

Sze, personal communication (June 20)

PROMETHEUS

Impact on COE Generally seek to minimize

recirculating power fraction, ε Meier result (next chart) does not

show a strong effect…

The 6.4 MJ, 5.9 Hz point gives near optimum COE

0 2 4 6 8 10

2

4

6

8

Repetition rate (Hz)C

OE

(C

ents

/kW

eh)

3 4 5 6 7 80

2

4

6

8

Driver energy (MJ)

CO

E, c

ents

/kW

eh

COE vs Driver energy COE vs Rep-rate

Net power = 1000 MWe

HI Conventional Target (full-sized) distributed radiator

Gain Curve ref. D. Callahan-

Miller and M. Tabak, Phys. Plasmas, 7, 5 (May 2000) 2083.

Near HYLIFE-II ref. R. Moir, et al., Fusion Tech., 25 (Jan. 1994) 5.0

20

40

60

80

100

120

140

160

0 2 4 6 8 10

Conventional, distributed-radiator (LLNL)

Ga

in

Driver Energy (MJ)

HI Driver [efficiency = f(ED)] DR 5 Hz: PE

HI Driver [efficiency=f(ED)] DR, 5 Hz: Recirc. Pow. Frac., ε

Common Assumptions Auxiliary power fraction = 0.05 Thermal conversion eff. = 0.45,0.55 5-Hz rep. rate is scalable to other PE

(MWe) Recirculating power fraction does not

depend on rep. Rate Last two assumptions are in dispute.