浅層土壌の地中熱を利用した ... - kawada.co.jp

1 *1 ( ) *3 ( ) *2 ( ) *4 ( ) 2013 6-1 Improvement of Heat Exchange Performance by Thermal Resistance of Grout *1 Mori KATSUMATA *1 Shinichi HATAKENAKA *2 Shigeru ECHIGO *3 Token OKANO *4 Reiji SHIMIZU 2011 2 180W/m

2 32W/m ON/OFF 24% -30cm -10m 1) -3m -5m ( ,GSHP) 2011 2 5m 2) 2 C 24 900W/ (180W/m) C 90 24 161W/ (32W/m) (m K) 3)

3 GSHP 2012 1 3 2),5) GSHP ON/OFF 24% 2013 6-2 (1) 2kW GSHP( FHP EC007-1 HZC) (3 ) (.

4 , , 239W) ( 20%) -2m -7m 1 GSHP TH Ex- Ex- Ex- Ex- FL LP ( ) ( ) ( ) ( ) TH: LP FL Ex 1 ( 1 Ex- ) (STK400) 5 000mm ( 8 75mm, 6mm, 4 500mm) ( , ) ( B) T 1 , Ex- 1m Ex- (VP,20A) 2) (2) GSHP 6) ( /min)

5 50 80 F( C) 60 80 F( C) COP 25 40 F( C) 60 80 F( C) COP 1 Entering Fluid Temp. ( F) 1 Entering Air Temp. ( F) 1 Total Capacity (MBtu/h) 2 Power Input (kW) COP 25 70 30 40 1 =(9 5) +32 2 1kW=3 412 Btu/h (3) 2011 9 2) (2012 1 23 3 26 ) C 24 GSHP 200cm ( 214cm) TH ON/OFF ( C ON C OFF) Ex- Ex- 2 ( VF-2000I) /min ( 2) GSHP TH Ex- Ex- Ex- Ex- FL LP ( )

6 ( ) ( ) ( ) 2 (4) C -2m C( C C) 3) 3 8 1 7) 4 GSHP 2013 6-3 1 C 1 GSHP 450W GSHP 16 12 Ex.

7 18 C Ex- 17 C Ex- 14 C Ex- Ex- ( ) 1 3 GSHP 417W 1 LP 233W Ex- C ( ) T (5) R r1 r2 (1) ( 3) )rr(ln 21R12 = (1) R r1 r2 3 (1) [W/(m K)]

8 ] [m3/m3] Cv[J/(m3 K)] [m2/s] vC = (2) C cCwdsv+= (3) cs[J/(Mg K)] d[Mg/m3] Cw 106J/(m3 K) 8) 106( ) 106( ) (2) 10% 25% 9) ( 2) 2013 6-4 -100102030401/231/302/62/132/202/273/53/ 123/193/26 2012 / C -40-30-20-10010 C C (a)

9 1015201/231/302/62/132/202/273/53/123/19 3/26 2012 / C -5515253545Ex- C ( ) ( ) ( )Ex- ( )Ex- ( )Ex- ( ) Ex- C C CEx- C C C C C C C C C (b) Ex- 1015201/231/302/62/132/202/273/53/123/19 3/26 2012 / C -5515253545Ex- C ( ) ( ) ( )Ex- ( )Ex- ( )Ex- ( )Ex- ( ) Ex- C C C CEx- C C C C C C C C C C (c) Ex- 2012 / C 0100200300400500600 W Ex- Ex- GSHP LP LP 233 WGSHP 417W (d)

10 4 2013 6-5 2 V1 4 (SiC ) 24C ( ) D50 (3) 10),11) ( ) 24 100cm3 1/1 000g [g/cm3] ( 300) 400ml ( a[m]) 90% 35 C Tr[ C] 1 ( 1) 11) Tr t t/a2 t/a2 y x 3 ( ), , , 1mm SUS