University:
Swansea University
Course:
EG-086 | Engineering Science
Academic year:

2023
Views:

183

Pages:

4
Author:

Lloyd R.

13/04/20 feed later Heater COND Comp imp Reheater Design Conspiraten of a veheater Deong (Consideration) HPT CAP APT EXP CoP Con P < Rak of Heat laserpten in a Reheater: ws(44-43) - Wg cpy(tor-192) Atm 5 20 1 Staun rf tst2 roef 3020-92 steam for MPT s7.0859 47 aw Mass Ato M Wibeve Ao nxxxdox L Ws= SAV = [nxx di²) x Vercity at exit 22 A steam at 90 bav, 480°C Steen putered testough a Reheater aferature by being passed Hbrough expepsion after of preccure heating takes place 0.07 bar fired the 12 krav. The to a Condensor efficieng of the reheat cycle and the work output slean assume Pe 5 byls Yif flow of Neglect pressure losses and xpansion is the trabine. Consiter stopk expolition isestropk the pump work also. Heat supplied hi-he) + Pe heatv 12 by 16=hst Pump work. 0.07 bru 163.4 kJ/kg 16 16)→ Extralpy of water estoning boilev. Pump increases the pressive from 0.07 brs to gokka Pump work Sprivolume (90-0-07) x105 of saturard wab 5 1000 0.001007 m³ 1kg×(90-00円) 10 = 9.055 1000 26/04/20 Thursdaл Designing an APH (Av Pue Heater) APH heat Siretly there thom game ret Cacin) the urat en badge surface (tube, plate typ Meat bolence in a APH Recuperative type ain to Boilor ta tai 1 Phycnerodive struge type bue Jan Deragy stage dr mediens Called "retur Martine is antomately, exprond to hot add theists of the game with air to tar (depastan) FD En atm ng cy (itgi - Ego) - Wan (po (tos-tor) 4A (Atm. 1 1 1 -1 Ai Kw Am due to clepeston ho40 (mass ) no dit x; y); 4 (P581) Py (15) Characteristic Gas Constant (0.28745/ng*) pr 1.03 bas Tgi inlet gas temp, gi' (inlet gai velouts) (12-14 mls) Nom Q. A Boiler plant incorporates an economizer and as and generates stears at 40 bar and 300°c (APH) Value 33,000 at à vate of 500 kg/hr. The temperature of feed water is raised fan 40°c to 125°C in the econor miser and the from 395 to flue gases Ove 225° The The flue Simultaneously guses Cooled then Jenter the (APH) where the temp of the Combustile div is raised by 75°C. An FD for delivers air to APH cot ssure of 1.02 bar and at a temp of 16°c with a pressure ise across the fan of 180 mm of water. The power input to the fon is 5 kw. and it has a mechanical efficiency of 78%.. nefecting heat losses and Gases. Ses. Calculat taking Qas 1.01 Power mpet ra ) offon = Vx4P (Metic) Aplquerken ⑥ head develop Powain Ompras flow rate of ar Mose flow rede ma = SAY, ST P ma Sav Temp of flere gases kaithy 1205- Temp chappy hue gara Energy balane in АРИ. the macpg19) macpel 45) Mass flow rate of steam Efficiexy of borlar.