(;

\ 

UN 

;1' 

�' 

************************************** 

HEAT AND MATERIAL BALANCE CALCULATIONS 

************************************** 

***************************************************** 

MULTIPLE HEARTH FURNACE WITH ZERO-HEARTH AFTERBURNER 

***************************************************** 

PAGE 1 OF 5 

05-18-1996 

NORTHEAST OHIO REGIONAL SEWER DISTICT - SOUTHERLY 

§ 

� 

01 MAY 1996 CONDITIONS - NO SPRAY WATER 

PROCESS SUMMARY 

FURNACE SIZE : .••••................. 22.25 

NO OF HEARTHS :..................... 9 

EFFECTIVE HEARTH AREA SQ FT : . . . . . .. 1580 

FURNACE LOADING : ..••..•............ 7.088608 

WASTE FEED AMOUNT LB/HR : •.......... 11200 

SOLID FEED AMOUNT LB/HR: ••......... 5121.76 

SRAY WATER GPM :................... 0 

SOLID CONTENT PERCENT : . . .... . . ... . . 45.73 

COMBUSTIBLE CONTENT PERCENT : ..... . . 45 

HEATING VALUE BTUILB COMBUSTIBLE . . . 12000 

DULONG HEAT VALUE BTUILB COMBUST .•• 12528 

HEARTH 4 TEMPERTAURE ••............ 1400 

TOP HEARTH TEMPERATURE F : •••...... 1500 

AUXILIARY FUEL ••.....•••.•• ••....... NATURAL GAS 

HEATING VALUE OF AUX FUEL BTU/CF .. . 1000 

FUEL CHARACTERISTICS 

SLUDGE COMBUSTIBLES ULTIMATE ANALYSIS : 

C .... .......... . . . .. . ... . . . ... ..... .. ..... .. 64 

H ........... . .. ......... ... . . ...... . ...... . ........ .. 08 

N . .. .... . . .... .. . .... . . ....... . ...... .. .. . 04 

o. .. .. .. . . . .. . . .. .. . .. .. .. .. .. .. . .. . . . . .. . . . .. .. .. 23 

S ... ..... .. .. .... . .... . .......... .. .. .. . .. . .. .. .... .. . " .. 01 

AUXILIARY FUEL ANALYSIS : 

c .................................................. .. 

H 

N 

o 

S 

. .. . .. ... .......... .. " . .. . ...... .. .. ... . 

.76 

• 23 

. 01 

o 

o 
NORTHEAST OHIO REGIONAL SEWER DISTICT - SOUTHERLY 

01 MAY 1996 CONDITIONS - NO SPRAY WATER 

MULTIPLE HEARTH FURNACE 

HEAT BALANCE SUMMARY 

DATUM DEG F 60 

(BTUjHR) 

HEAT OUT 

SLUDGE MOISTURE AND SPRAY 

ASH: 

RADIATION: 

SHAFT AIR: 

COMBUSTION PRODUCTS: 

EXCESS AIR; 

HEAT OF CALCINATION: 

CAO DUST: 

FUEL COMBUSTION PRODUCS 

10421260 

247893 

491369 

1967940 

10630730 

7449644 

o 

o 

3078961 

TOTAL 34287800 

HEAT IN 

WASTE FEED: 

SHAFT RETURN: 

NATURAL GAS 

TOTAL 

NET HEAT REQ'D BTUjHR : 

FUEL REQUIRED CFH: 

AUX FUEL AVAIL FACTOR % 

BTUjLB WATER EVAPORATED: 

ENTHALPHY EXHAUST BTUjLB: 

27657500 

o 

6630301 

34287800 

3551340 

6630.301 

53.56228 

5641.074 

668.986 

PAGE 2 OF 5 
PAGE 3 OF 5. 

NORTHEAST OHIO REGIONAL SEWER DISTICT - SOUTHERLY 

-------------------------------------------------------------------

01 MAY 1996 CONDITIONS - NO SPRAY WATER 

MULTIPLE HEARTH FURNACE 

MATERIAL BALANCE SUMMARY 

(LB/HR) 

MATERIAL IN 

SLUDGE COMBUSTIBLES 

SLUDGE INERTS 

SLUDGE MOISTURE AND S 

FUEL 

STOIC AIR FOR SLUDGE 

EXCESS AIR FOR SLUDGE 

STOIC AIR FOR FUEL 

EXCESS AIR FOR FUEL 

MOISTURE IN AIR 

2305 

2817 

6078 

298 

21127 

21127 

4973 

995 

482 

----------------------------------------

TOTAL 

MATERIAL OUT 

DRY GASES 

MOISTURE IN GAS 

SLUDGE INERTS 

60202 

48548 

8838 

2817 

-----------------------------------------

TOTAL 

AIR FOR AUX FUEL CFM : 

EXCESS AIR FOR SLUDGE % 

EXCESS AIR FOR AUX FUEL % 

SHAFT COOLING AIR SCFM 

PERCENT HOT AIR RETURN % 

HOT AIR RETURN LB/HR : 

HUMIDITY LB H20/LB DG : 

60202 

1303.467 

100 

20 

5800 

o 

o 

.1820372 
NORTHEAST OHIO REGIONAL SEWER DISTICT - SOUTHERLY 

01 MAY 1996 CONDITIONS - NO SPRAY WATER 

TOP HEARTH AFTERBURNER 

MATERIAL BALANCE SUMMARY 

C02 

S02 

N2 

02 

H20 

NATURAL GAS 

AIR 

MOISTURE 

TOTAL 

C02 

S02 

N2 

02 

H20 

TOTAL 

LB/HR 

MATERIAL IN 

MATERIAL OUT 

6240 

46 

37130 

5132 

8838 

170 

3404 

34 

60993 

6714 

46 

39745 

5264 

9224 

60993 

HEAT BALANCE SUMARY 

DATUM DEG F 1400 

(BTU/HR) 

HEAT OUT 

FURNACE COMBUSTION PRODUCT 

RADIATION 

FUEL COMBUSTION PRODUCTS 

1903823 

37817 

1840083 

TOTAL 3781723 

HEAT IN 

NATURAL GAS 

TOTAL 

NET HEAT REQ'D BTU/HR : 

FUEL REQUIRED CFH: 

AUX FUEL AVAIL FACTOR % 

ENTHALPHY EXHAUST BTU/LB: 

3781723 

3781723 

1903823 

3781. 723 

.5034273 

699.4983 

PAGE 4 OF 5 
I 

I 

I 

I 

,EV-1 

PAGE 5 OF 5 

NORTHEAST OHIO REGIONAL SEWER DISTICT - SOUTHERLY 

-------------------------------------------------------------------

01 MAY 1996 CONDITIONS - NO SPRAY WATER 

C02 

S02 

N2 

02 

H20 

TOTAL 

SCRUBBER SUMMARY 

(LBjHR) 

MATERIAL IN 

GAS INLET VOLUME ACFM 

GAS INLET TEMP DEG F 

OXYGEN CONTENT (wet) % 

GAS INLET VOLUME TO COOLER ACFM 

GAS INLET TEMP TO COOLER DEG F 

GAS EXHAUST TEMP DEG F 

GAS EXH HUMIDITY LB H20jLB DG 

GAS OUTLET VOLUME ACFM 

ENTHALPY AT COOLER INLET 

TOTAL SCRUBBER PRESSURE DROP INCH WC 

VENTURI PRESSURE DROP INCH WC 

COOLING WATER TEMPERATURE DEG F 

WATER FOR PRE COOLER GPM 

WATER FOR VENTURI GPM 

WATER FOR AFTERCOOLER GPM 

TOTAL WATER FOR SCRUBBER GPM 

MAX ALLOWED EMISSION LBjHR 

AFTERCOOLER SIZE FT DIA 

6714 

46 

39745 

5264 

9224 

60993 

53662.1 

1500 

7.311842 

28839.1 

178 

100 

.04312 

12923.86 

718.25 

30 

20 

65 

87.44682 

203.5118 

657.518 

948.4765 

3.329144 

9.03545