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{PROPOSAL 3, pressure of CFWH from high pressure, 3FWH} p_b=150 [bar] T_max= 500 [c] p_reheat=30.5 [bar] T_reheat= 500 [c] p_c = 0.1 [bar] p_OFWH=5.83[bar] p_FIRSTCFWH=1.268[bar] p_SECONDCFWH=100[bar] eta_turbine=0.85 eta_pump=0.95 z=0.0139 y=0.165 {point 1} p[1]=p_c x[1]=0 h[1]=enthalpy(water,p=p[1],x=x[1]) s[1]=entropy(water,p=p[1],x=x[1]) {point 2} p[2]=p_OFWH {isentropic} s_s[2]=s[1] h_s[2]=enthalpy(water,p=p[2],s=s_s[2]) {Actual} h[2]=((h_s[2]-h[1])/eta_pump)+h[1] {point 3} p[3]=p_OFWH h[3]=enthalpy(water,p=p[3],T=T[3]) s[3]=entropy(water,p=p[3],T=T[3]) h[3]=h[16] h[16]=h[17] {point 4} p[4]=p_OFWH x[4]=0 h[4]=enthalpy(water,p=p[4],x=x[4]) s[4]=entropy(water,p=p[4],x=x[4]) {point 5} p[5]=p_b s_s[5]=s[4] h_s[5]=enthalpy(water,p=p[5],s=s_s[5]) {Actual} h[5]=((h_s[5]-h[4])/eta_pump)+h[4] {point 6} p[6] =p_b h[6]=enthalpy(water,p=p[6],T=T[6]) s[6]=entropy(water,p=p[6],T=T[6]) h[6]=h[14] h[14]=h[15] {point 7} p[7] =p_b T[7]=T_max h[7]=enthalpy(water,p=p[7],T=T[7]) s[7]=entropy(water,p=p[7],T=T[7]) {point 8} p[8]=p_reheat s_s[8]=s[7] h_s[8]=enthalpy(water,p=p[8],s=s_s[8]) {Actual} h[8]=((h_s[8]-h[7])/eta_pump)+h[7] s[8]=entropy(water,p=p[8],h=h[8]) {point 9} p[9] =p_SECONDCFWH s_s[9]=s[8] h_s[9]=enthalpy(water,p=p[9],s=s_s[9]) {Actual} h[9]=((h_s[9]-h[8])/eta_pump)+h[8] s[9]=entropy(water,p=p[9],h=h[9]) {point 10} p[10] =p_SECONDCFWH T[10]=T_max h[10]=enthalpy(water,p=p[10],T=T[10]) s[10]=entropy(water,p=p[10],T=T[10]) {point 11} p[11] =p_OFWH s_s[11]=s[10] h_s[11]=enthalpy(water,p=p[11],s=s_s[11]) {Actual} h[11]=((h_s[11]-h[10])/eta_pump)+h[10] s[11]=entropy(water,p=p[11],h=h[11]) {point 12} p[12] =p_FIRSTCFWH s_s[12]=s[11] h_s[12]=enthalpy(water,p=p[12],s=s_s[12]) {Actual} h[12]=((h_s[12]-h[11])/eta_pump)+h[11] s[12]=entropy(water,p=p[12],h=h[12]) {point 13} p[13] =p_c s_s[13]=s[12] h_s[13]=enthalpy(water,p=p[13],s=s_s[13]) {Actual} h[13]=((h_s[13]-h[12])/eta_pump)+h[12] s[13]=entropy(water,p=p[13],h=h[13]) {mass balance of SECONDCFWH} (h[8])*(x)+(h[5])=(h[6])+(x)*(h[14]) {mass balance of OFWH} (h[11])*(y) + (h[3])*(1-x-y) + (h[15])*(x) = h[4] {mass balance of FIRSTCFWH} (z)*(h[12]) + (1-x-y)*(h[2]) = (h[16])*(z) + (h[3])*(1-x-y) q_add=(h[7]-h[8])+(1-x)*(h[10]-h[9]) q_rej = (1-x-y-z)*(h[13]) + (h[17])*(z) - (h[1])*(1-x-y) w_net=( (h[7]-h[8]) + (1-x)*(h[10]-h[9]) ) - ( (1-x-y-z)*(h[13]) + (h[17])*(z) - (h[1])*(1-x-y) ) eta_th=w_net / q_add
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